1
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Pang X, Han S, Zheng K, Jiang L, Wang J, Qian S. Cellulose nanocrystal-stabilized Pickering emulsion gels as vehicles for follicular delivery of minoxidil. Int J Biol Macromol 2024; 277:134297. [PMID: 39097055 DOI: 10.1016/j.ijbiomac.2024.134297] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2024] [Revised: 07/20/2024] [Accepted: 07/28/2024] [Indexed: 08/05/2024]
Abstract
Minoxidil (MXD) is the only topical over-the-counter medicine approved by the United States Food and Drug Administration for the treatment of androgenetic alopecia. For the purpose of targeting the delivery of MXD to dermal papilla in the hair follicle, MXD Pickering emulsion gels were fabricated based on the designability of deep eutectic solvent (DES) and the versatility of cellulose nanocrystal (CNC) and sodium carboxymethyl cellulose (CMC-Na). Structural studies and theoretical calculations results suggest that CNC can stabilize the interface between the MXD-DES and water, leading to the formation of Pickering emulsions. The rheological properties and stabilities of MXD Pickering emulsions were enhanced through gelation using CMC-Na, which highlights the good compatibility and effectiveness of natural polysaccharides in emulsion gels. Due to the particle size of emulsion droplets (679 nm) and the rheological properties of emulsion gel, the fabricated MXD formulations show in vivo hair regrowth promotion and hair follicle targeting capabilities. Interestingly, the MXD Pickering emulsion-based formulations exert therapeutic effects by upregulating the expression of hair growth factors. The proposed nanodrug strategy based on supramolecular strategies of CNC and CMC-Na provides an interesting avenue for androgenetic alopecia treatment.
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Affiliation(s)
- Xuan Pang
- School of Life Sciences and Medicine, Shandong University of Technology, Zibo, Shandong 255049, China
| | - Song Han
- School of Life Sciences and Medicine, Shandong University of Technology, Zibo, Shandong 255049, China
| | - Kang Zheng
- School of Life Sciences and Medicine, Shandong University of Technology, Zibo, Shandong 255049, China.
| | - Liu Jiang
- School of Life Sciences and Medicine, Shandong University of Technology, Zibo, Shandong 255049, China; School of Agricultural Engineering and Food Science, Shandong University of Technology, Zibo, Shandong 255049, China.
| | - Jianping Wang
- School of Life Sciences and Medicine, Shandong University of Technology, Zibo, Shandong 255049, China
| | - Shaosong Qian
- School of Life Sciences and Medicine, Shandong University of Technology, Zibo, Shandong 255049, China
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2
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Herbert B, Walpuski J, Stolte M, Shoyama K. Designing Organic π-Conjugated Molecules for Crystalline Solid Solutions: Adamantane-Substituted Naphthalenes. Chempluschem 2024; 89:e202300761. [PMID: 38259048 DOI: 10.1002/cplu.202300761] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Revised: 01/19/2024] [Accepted: 01/22/2024] [Indexed: 01/24/2024]
Abstract
We showcase herein organic crystalline solid solutions (CSSs) based on the simplest polycyclic aromatic hydrocarbon (PAH) scaffold, naphthalene, stabilized by dispersion forces induced by adamantane substitution. High thermal stability of the host and guest molecules synthesized by cross-coupling of dibromonaphthalene derivatives and 4-(1-adamantyl)phenyl boronic ester enabled formation of crystals by sublimation. We could generate binary monocrystalline solid solution systems proven by X-ray crystallography, the first system of designed CSSs stabilized exclusively via dispersion forces with structural evidence. These observations are additionally supported by lattice energy calculations and spectroscopic examinations. For the generation of CSSs, it is of utmost importance that the host and guest molecules have similar lattice energies and spatial compatibility. We anticipate that the thermostable organic CSS design demonstrated herein would be beneficial for functional materials and further investigation towards materials with unique properties.
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Affiliation(s)
- Benedikt Herbert
- Center for Nanosystems Chemistry (CNC) and Institut für Organische Chemie, Universität Würzburg, Am Hubland, 97074, Würzburg, Germany
| | - Janis Walpuski
- Center for Nanosystems Chemistry (CNC) and Institut für Organische Chemie, Universität Würzburg, Am Hubland, 97074, Würzburg, Germany
| | - Matthias Stolte
- Center for Nanosystems Chemistry (CNC) and Institut für Organische Chemie, Universität Würzburg, Am Hubland, 97074, Würzburg, Germany
| | - Kazutaka Shoyama
- Center for Nanosystems Chemistry (CNC) and Institut für Organische Chemie, Universität Würzburg, Am Hubland, 97074, Würzburg, Germany
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3
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Lopresti M, Palin L, Calegari G, Milanesio M. The Peculiar H-Bonding Network of 4-Methylcatechol: A Coupled Diffraction and In Silico Study. Molecules 2024; 29:2173. [PMID: 38792035 PMCID: PMC11124409 DOI: 10.3390/molecules29102173] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2024] [Revised: 05/02/2024] [Accepted: 05/02/2024] [Indexed: 05/26/2024] Open
Abstract
The crystal structure of 4-methylcatechol (4MEC) has, to date, never been solved, despite its very simple chemical formula C7O2H8 and the many possible applications envisaged for this molecule. In this work, this gap is filled and the structure of 4MEC is obtained by combining X-ray powder diffraction and first principle calculations to carefully locate hydrogen atoms. Two molecules are present in the asymmetric unit. Hirshfeld analysis confirmed the reliability of the solved structure, since the two molecules show rather different environments and H-bond interactions of different directionality and strength. The packing is characterised by a peculiar hydrogen bond network with hydroxyl nests formed by two adjacent octagonal frameworks. It is noteworthy that the observed short contacts suggest strong inter-molecular interactions, further confirmed by strong inter-crystalline aggregation observed by microscopic images, indicating the growth, in many crystallization attempts, of single aggregates taller than half a centimetre and, often, with spherical shapes. These peculiarities are induced by the presence of methyl group in 4MEC, since the parent compound catechol, despite its chemical similarity, shows a standard layered packing alternating hydrophobic and polar layers. Finally, the complexity and peculiarity of the packing and crystal growth features explain why a single crystal could not be obtained for a standard structural analysis.
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Affiliation(s)
- Mattia Lopresti
- Dipartimento di Scienze e Innovazione Tecnologica, Università del Piemonte Orientale, Viale T. Michel 11, 15121 Alessandria, Italy; (M.L.); (L.P.)
| | - Luca Palin
- Dipartimento di Scienze e Innovazione Tecnologica, Università del Piemonte Orientale, Viale T. Michel 11, 15121 Alessandria, Italy; (M.L.); (L.P.)
- Nova Res s.r.l., Via D. Bello 3, 28100 Novara, Italy
| | | | - Marco Milanesio
- Dipartimento di Scienze e Innovazione Tecnologica, Università del Piemonte Orientale, Viale T. Michel 11, 15121 Alessandria, Italy; (M.L.); (L.P.)
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4
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Dittrich B, Connor LE, Fabbiani FPA, Piechon P. Linking solid-state phenomena via energy differences in `archetype crystal structures'. IUCRJ 2024; 11:347-358. [PMID: 38629168 PMCID: PMC11067740 DOI: 10.1107/s2052252524002641] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2023] [Accepted: 03/20/2024] [Indexed: 05/04/2024]
Abstract
Categorization underlies understanding. Conceptualizing solid-state structures of organic molecules with `archetype crystal structures' bridges established categories of disorder, polymorphism and solid solutions and is herein extended to special position and high-Z' structures. The concept was developed in the context of disorder modelling [Dittrich, B. (2021). IUCrJ, 8, 305-318] and relies on adding quantum chemical energy differences between disorder components to other criteria as an explanation as to why disorder - and disappearing disorder - occurs in an average structure. Part of the concept is that disorder, as probed by diffraction, affects entire molecules, rather than just the parts of a molecule with differing conformations, and the finding that an R·T energy difference between disorder archetypes is usually not exceeded. An illustrative example combining disorder and special positions is the crystal structure of oestradiol hemihydrate analysed here, where its space-group/subgroup relationship is required to explain its disorder of hydrogen-bonded hydrogen atoms. In addition, we show how high-Z' structures can also be analysed energetically and understood via archetypes: high-Z' structures occur when an energy gain from combining different rather than overall alike conformations in a crystal significantly exceeds R·T, and this finding is discussed in the context of earlier explanations in the literature. Twinning is not related to archetype structures since it involves macroscopic domains of the same crystal structure. Archetype crystal structures are distinguished from crystal structure prediction trial structures in that an experimental reference structure is required for them. Categorization into archetype structures also has practical relevance, leading to a new practice of disorder modelling in experimental least-squares refinement alluded to in the above-mentioned publication.
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Affiliation(s)
- B. Dittrich
- Novartis Campus, Novartis Pharma AG, Postfach, Basel CH-4002, Switzerland
- Mathematisch Naturwiss. Fakultät, Universität Zürich, Winterthurerstrasse 190, Zürich CH-8057, Switzerland
| | - L. E. Connor
- Novartis Campus, Novartis Pharma AG, Postfach, Basel CH-4002, Switzerland
| | - F. P. A. Fabbiani
- Novartis Campus, Novartis Pharma AG, Postfach, Basel CH-4002, Switzerland
| | - P. Piechon
- Novartis Campus, Novartis Pharma AG, Postfach, Basel CH-4002, Switzerland
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5
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Gould A, Schalk DR, Fleagle ME, Wheeler KA. Benzoyl Valine Quasiracemates: Pairing CF 3 Quasienantiomers with H to t-Butyl. CRYSTAL GROWTH & DESIGN 2024; 24:3967-3976. [PMID: 38708368 PMCID: PMC11066836 DOI: 10.1021/acs.cgd.4c00307] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/29/2024] [Revised: 04/04/2024] [Accepted: 04/08/2024] [Indexed: 05/07/2024]
Abstract
Understanding the interplay of structural features responsible for molecular assembly is essential for molecular crystal engineering. When assembling molecules with encoded motifs, first choice supramolecular strategies almost always include robust directional nonbonded contacts. Quasiracemic materials, considered near racemates since cocrystallization occurs with chemically unique components, lack a molecular framework or functional group restrictions, highlighting the importance of molecular shape to molecular assembly. Recently, our group reported quasiracemates derived from benzoyl leucine/phenylalanine derivatives with two points of chemical difference. In this study, we modified the chemical framework with valine and increased the scope of the work by imposing a larger variance in the side chain substituents. Pairing a CF3 component with quasienantiomers that differ iteratively from hydrogen to t-butyl offers an important view into the supramolecular landscape of these materials. Single-crystal X-ray crystallography and lattice energy assessments, coupled with conformational and crystal structure similarity searches, show an elevated degree of isomorphism for many of the targeted 17 racemates and quasiracemates. These benzoyl amino acid molecular architectures create extended hydrogen-bond patterns in the crystal that provide enhanced opportunities to study the shape space and molecular recognition profiles for a diverse family of quasienantiomeric components.
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Affiliation(s)
- Ashah
M. Gould
- Department of Chemistry, Whitworth University, 300 West Hawthorne Road, Spokane, Washington 99251, United States
| | - Danielle R. Schalk
- Department of Chemistry, Whitworth University, 300 West Hawthorne Road, Spokane, Washington 99251, United States
| | - Molly E. Fleagle
- Department of Chemistry, Whitworth University, 300 West Hawthorne Road, Spokane, Washington 99251, United States
| | - Kraig A. Wheeler
- Department of Chemistry, Whitworth University, 300 West Hawthorne Road, Spokane, Washington 99251, United States
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6
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Waters JK, Kelley SP, Mossine VV, Mawhinney TP. ( S)-2-Carb-oxy-ethyl l-cysteinyl sulfone. IUCRDATA 2024; 9:x240480. [PMID: 38846556 PMCID: PMC11151290 DOI: 10.1107/s2414314624004802] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2024] [Accepted: 05/22/2024] [Indexed: 06/09/2024] Open
Abstract
The title compound {systematic name: (2S)-2-aza-niumyl-3-[(2-carb-oxy-ethane)-sulfon-yl]propano-ate}, C6H11NO6S, forms enanti-opure crystals in the monoclinic space group P21 and exists as a zwitterion, with a protonated α-amino group and a deprotonated α-carboxyl group. Both the carboxyl groups and the amino group are involved in an extensive multicentered inter-molecular hydrogen-bonding scheme. In the crystal, the diperiodic network of hydrogen bonds propagates parallel to (101) and involves inter-connected heterodromic R 4 3(10) rings. Electrostatic forces are major contributors to the structure energy, which was estimated by DFT calculations as E total = -333.5 kJ mol-1.
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Affiliation(s)
- James K. Waters
- Experiment Station Chemical Laboratories, University of Missouri, Agriculture Bldg, Rm 4, Columbia, MO 65211, USA
| | - Steven P. Kelley
- Department of Chemistry, University of Missouri, Columbia, MO 65211, USA
| | - Valeri V. Mossine
- Department of Biochemistry, University of Missouri, Columbia, MO 65211, USA
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7
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Ludík J, Kostková V, Kocian Š, Touš P, Štejfa V, Červinka C. First-Principles Models of Polymorphism of Pharmaceuticals: Maximizing the Accuracy-to-Cost Ratio. J Chem Theory Comput 2024; 20:2858-2870. [PMID: 38531828 PMCID: PMC11008097 DOI: 10.1021/acs.jctc.4c00099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2024] [Revised: 03/08/2024] [Accepted: 03/11/2024] [Indexed: 03/28/2024]
Abstract
Accuracy and sophistication of in silico models of structure, internal dynamics, and cohesion of molecular materials at finite temperatures increase over time. Applicability limits of ab initio polymorph ranking that would be feasible at reasonable costs currently represent crystals of moderately sized molecules (less than 20 nonhydrogen atoms) and simple unit cells (containing rather only one symmetry-irreducible molecule). Extending the applicability range of the underlying first-principles methods to larger systems with a real-life significance, and enabling to perform such computations in a high-throughput regime represent additional challenges to be tackled in computational chemistry. This work presents a novel composite method that combines the computational efficiency of density-functional tight-binding (DFTB) methods with the accuracy of density-functional theory (DFT). Being rooted in the quasi-harmonic approximation, it uses a cheap method to perform all of the costly scans of how static and dynamic characteristics of the crystal vary with respect to its volume. Such data are subsequently corrected to agree with a higher-level model, which must be evaluated only at a single volume of the crystal. It thus enables predictions of structural, cohesive, and thermodynamic properties of complex molecular materials, such as pharmaceuticals or organic semiconductors, at a fraction of the original computational cost. As the composite model retains the solid physical background, it suffers from a minimum accuracy deterioration compared to the full treatment with the costly approach. The novel methodology is demonstrated to provide consistent results for the structural and thermodynamic properties of real-life molecular crystals and their polymorph ranking.
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Affiliation(s)
- Jan Ludík
- Department of Physical Chemistry, University of Chemistry and Technology Prague, Technická 5, CZ-166 28 Prague 6, Czech Republic
| | - Veronika Kostková
- Department of Physical Chemistry, University of Chemistry and Technology Prague, Technická 5, CZ-166 28 Prague 6, Czech Republic
| | - Štefan Kocian
- Department of Physical Chemistry, University of Chemistry and Technology Prague, Technická 5, CZ-166 28 Prague 6, Czech Republic
| | - Petr Touš
- Department of Physical Chemistry, University of Chemistry and Technology Prague, Technická 5, CZ-166 28 Prague 6, Czech Republic
| | - Vojtěch Štejfa
- Department of Physical Chemistry, University of Chemistry and Technology Prague, Technická 5, CZ-166 28 Prague 6, Czech Republic
| | - Ctirad Červinka
- Department of Physical Chemistry, University of Chemistry and Technology Prague, Technická 5, CZ-166 28 Prague 6, Czech Republic
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8
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McDonald PW, Ritchie C. A multi-chromic boron trifluoride-pyridyl Lewis adduct. Chem Commun (Camb) 2024; 60:3051-3054. [PMID: 38381356 DOI: 10.1039/d3cc05996k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/22/2024]
Abstract
A boron trifluoride-pyridyl Lewis adduct is reported, which exhibits various types of chromism and high solid-state photoluminescence quantum yields, as well as excitation-dependent emission in the mechanically ground form. The facile synthetic approach offers a simple and potentially versatile strategy for inducing chromism in pyridyl ligands with donor moieties. We envisage this approach as having a dual benefit: simplicity and extensive applicability.
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Affiliation(s)
- Peter W McDonald
- School of Chemistry, Monash University, Clayton, Victoria, Australia.
| | - Chris Ritchie
- School of Chemistry, Monash University, Clayton, Victoria, Australia.
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9
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McGehee K, Saito K, Kwaria D, Minamikawa H, Norikane Y. Releasing a bound molecular spring with light: a visible light-triggered photosalient effect tied to polymorphism. Phys Chem Chem Phys 2024; 26:6834-6843. [PMID: 38328882 DOI: 10.1039/d3cp04691e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2024]
Abstract
Here we present a study on the solid state properties of trans tetra-ortho-bromo azobenzene (4Br-Azo). Two distinct crystal polymorphs were identified: the α-phase and β-phase. Notably, only the β-phase exhibited an extraordinary photosalient effect (jumping/breaking) upon exposure to a wide range of visible light. Powder X-ray diffraction and Raman spectroscopy revealed that the β-phase is metastable and can transition to the α-phase when subjected to specific stimuli like heat and light. Furthermore, single crystal X-ray diffraction and density functional theory calculations highlighted the significance of a highly strained conformer in the β-phase, showing that the metastability of the phase potentially arises from relieving this strain. This metastability leads to a light induced phase transition, which appears to be the cause of the photosalient effect in these crystals. Interestingly the polymorphism at the core of 4Br-Azo's dynamic behavior is based on different arrangements of halogen based intermolecular interactions. It is possible that continued study on combining visible light capturing chromophores with halogen interaction-based polymorphism will lead to the discovery of even more visible light controlled dynamic crystal materials.
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Affiliation(s)
- Keegan McGehee
- Graduate School of Pure and Applied Science, University of Tsukuba, Tsukuba, Ibaraki 305-8571, Japan
- Research Institute for Advanced Electronics and Photonics, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Ibaraki 305-8565, Japan.
| | - Koichiro Saito
- Research Institute for Advanced Electronics and Photonics, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Ibaraki 305-8565, Japan.
| | - Dennis Kwaria
- Research Institute for Advanced Electronics and Photonics, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Ibaraki 305-8565, Japan.
| | - Hiroyuki Minamikawa
- Interdisciplinary Research Center for Catalytic Chemistry, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Ibaraki 305-8565, Japan
| | - Yasuo Norikane
- Graduate School of Pure and Applied Science, University of Tsukuba, Tsukuba, Ibaraki 305-8571, Japan
- Research Institute for Advanced Electronics and Photonics, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Ibaraki 305-8565, Japan.
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10
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Ejarque D, Calvet T, Font-Bardia M, Pons J. Structural Landscape of α-Acetamidocinnamic Acid Cocrystals with Bipyridine-Based Coformers: Influence of Crystal Packing on Their Thermal and Photophysical Properties. CRYSTAL GROWTH & DESIGN 2024; 24:1746-1765. [PMID: 38405168 PMCID: PMC10885007 DOI: 10.1021/acs.cgd.3c01374] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/17/2023] [Revised: 01/29/2024] [Accepted: 01/30/2024] [Indexed: 02/27/2024]
Abstract
Controlling the supramolecular synthon outcome in systems with different functionalities has been a key factor for the design of supramolecular materials, which also affected their physicochemical properties. In this contribution, we have analyzed the structural landscape of α-acetamidocinnamic acid (HACA) aiming to find its synthon outcome from the competitivity between its acidic and amidic groups. We prepared four multicomponent forms including one dihydrate (HACA·2H2O) and three cocrystals bearing different bipyridine coformers with formulas (HACA)2(1,2-bpe) (1), (HACA)2(4,4'-azpy) (2), and (HACA)2(4,4'-bipy)3 (3) (1,2-bpe = 1,2-bis(4-pyridyl)ethylene; 4,4'-azpy = 4,4'-azopyridine; 4,4'-bipy = 4,4'-bipyridine). First, we applied a virtual screening approach to assess the feasibility of cocrystal formation. Then, we synthesized the cocrystals, via liquid-assisted grinding (LAG) (1 and 2) or solvothermal (3) techniques, and single crystals of HACA, and their four multicomponent forms were obtained showing different synthons and crystal packings. Besides, a Cambridge Structural Database (CSD) search of the cocrystals presenting bipyridine-type coformers and molecules with acid and amide functionalities was performed, and the observed synthon occurrences as well as the possibility of synthon modification by tuning the H-donor/H-acceptor propensity of the acidic and amidic groups were shown. Finally, we measured their thermal and photophysical properties, which were correlated with their structural features.
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Affiliation(s)
- Daniel Ejarque
- Departament
de Química, Universitat Autònoma
de Barcelona, 08193-Bellaterra, Barcelona, Spain
| | - Teresa Calvet
- Departament
de Mineralogia, Petrologia i Geologia Aplicada, Universitat de Barcelona, Martí i Franquès s/n, 08028 Barcelona, Spain
| | - Mercè Font-Bardia
- Unitat
de Difracció de Raig-X, Centres Científics i Tecnològics
de la Universitat de Barcelona (CCiTUB), Universitat de Barcelona, Solé i Sabarís, 1-3, 08028 Barcelona, Spain
| | - Josefina Pons
- Departament
de Química, Universitat Autònoma
de Barcelona, 08193-Bellaterra, Barcelona, Spain
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11
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Mirocki A, Lopresti M, Palin L, Conterosito E, Sikorska E, Sikorski A, Milanesio M. Crystallization from solution versus mechanochemistry to obtain double-drug multicomponent crystals of ethacridine with salicylic/acetylsalicylic acids. Sci Rep 2024; 14:1834. [PMID: 38246926 PMCID: PMC10800331 DOI: 10.1038/s41598-023-49922-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2023] [Accepted: 12/13/2023] [Indexed: 01/23/2024] Open
Abstract
Salicylic and acetylsalicylic acids and ethacridine have complementary bioactive properties. They can be combined to obtain double-drug multicomponent crystals. Their reactivity in different environments was explored to obtain the possible compounds, stable at different hydration degrees. Solution, liquid-assisted grinding, and dry preparation approaches were applied to the couples of reactants in different stoichiometric ratios. Four compounds were obtained, and three out of them were stable and reproducible enough to determine their structures using SCXRD or PXRD methods. When coupled to ethacridine, salicylic acid gave two stable structures (1 and 3, both showing 1:1 ratio but different hydration degree) and a metastable one (5), while acetylsalicylic acid only one structure from solution (2 in 1:1 ratio), while LAG caused hydrolysis and formation of the same compound obtained by LAG of ethacridine with salicylic acid. While solution precipitation gave dihydrated (1) or monohydrated (2) structures with low yields, LAG of salicylic acid and ethacridine allowed obtaining an anhydrous salt complex (3) with a yield close to 1. The structures obtained by solution crystallizations maximize π(acridine)-π(acridine) contacts with a less compact packing, while the LAG structure is more compact with a packing driven by hydrogen bonds. For all compounds, NMR, ATR-FTIR, and Hirshfeld surface analysis and energy framework calculations were performed.
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Affiliation(s)
- Artur Mirocki
- Faculty of Chemistry, University of Gdansk, ul. Wita Stwosza 63, 80-308, Gdansk, Poland
| | - Mattia Lopresti
- Dipartimento di Scienze e Innovazione Tecnologica, Università del Piemonte Orientale, Viale T. Michel 11, 15121, Alessandria, Italy
| | - Luca Palin
- Dipartimento di Scienze e Innovazione Tecnologica, Università del Piemonte Orientale, Viale T. Michel 11, 15121, Alessandria, Italy
- Nova Res s.r.l., Via D. Bello 3, 28100, Novara, Italy
| | - Eleonora Conterosito
- Dipartimento per lo Sviluppo Sostenibile e la Transizione Ecologica, Università del Piemonte Orientale, Piazza Sant'Eusebio 5, 13100, Vercelli, Italy
| | - Emilia Sikorska
- Faculty of Chemistry, University of Gdansk, ul. Wita Stwosza 63, 80-308, Gdansk, Poland
| | - Artur Sikorski
- Faculty of Chemistry, University of Gdansk, ul. Wita Stwosza 63, 80-308, Gdansk, Poland.
| | - Marco Milanesio
- Dipartimento di Scienze e Innovazione Tecnologica, Università del Piemonte Orientale, Viale T. Michel 11, 15121, Alessandria, Italy.
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12
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Bulgarevich K, Takimiya K. Crystal-structure simulation of molecular semiconductors: brickwork-related crystal structures of methylthiolated peri-condensed polycyclic aromatic hydrocarbons. MATERIALS HORIZONS 2023; 10:5492-5499. [PMID: 37970694 DOI: 10.1039/d3mh01055d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2023]
Abstract
Despite the critical importance to carrier transport properties, studies on the control and prediction of crystal structures of molecular semiconductors have not been well-matured. To tackle this issue, we have developed "in silico crystallization" (ISC) protocols for simulating the brickwork (BW) crystal structures of methylchalcogenolated polycyclic aromatic hydrocarbons (PAHs). In this study, by carefully analyzing a BW-related polymorph of experimental crystal structures, an inclined brickwork (iBW) structure, we further extend the ISC protocol to simulate various BW-related crystal structures including iBW structures. Rational conditional branching in the simulation not only makes it possible to simulate eight polymorph candidates of methylchalcogenolated PAHs but also helps understand the relationship between the polymorphs. Furthermore, the relative favorability of each polymorphic candidate, i.e., the likelihood of the appearance among the polymorph candidates, can also be evaluated.
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Affiliation(s)
- Kirill Bulgarevich
- RIKEN Center for Emergent Matter Science (CEMS), 2-1 Hirosawa, Wako, Saitama 351-0198, Japan.
| | - Kazuo Takimiya
- RIKEN Center for Emergent Matter Science (CEMS), 2-1 Hirosawa, Wako, Saitama 351-0198, Japan.
- Department of Chemistry, Graduate School of Science, Tohoku University, 6-3 Aoba, Aramaki, Aoba-ku, Sendai, Miyagi 980-8578, Japan
- Advanced Institute for Materials Research (AIMR), Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai, Miyagi 980-8577, Japan
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13
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Liang YH, Ye HZ, Berkelbach TC. Can Spin-Component Scaled MP2 Achieve kJ/mol Accuracy for Cohesive Energies of Molecular Crystals? J Phys Chem Lett 2023; 14:10435-10441. [PMID: 37956873 DOI: 10.1021/acs.jpclett.3c02411] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2023]
Abstract
Attaining kJ/mol accuracy in cohesive energy for molecular crystals is a persistent challenge in computational materials science. In this study, we evaluate second-order Møller-Plesset perturbation theory (MP2) and its spin-component scaled models for calculating cohesive energies for 23 molecular crystals (X23 data set). Using periodic boundary conditions and Brillouin zone sampling, we converge results to the thermodynamic and complete basis set limits, achieving an accuracy of about 2 kJ/mol (0.5 kcal/mol), which is rarely achieved in previous MP2 calculations for molecular crystals. When compared to experimental data, our results have a mean absolute error of 12.9 kJ/mol, comparable to Density Functional Theory with the PBE functional and TS dispersion correction. By separately scaling the opposite-spin and same-spin correlation energy components, using predetermined parameters, we reduce the mean absolute error to 9.5 kJ/mol. Further fine-tuning of these scaling parameters specifically for the X23 data set brings the mean absolute error down to 7.5 kJ/mol.
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Affiliation(s)
- Yu Hsuan Liang
- Department of Chemistry, Columbia University, New York, New York 10027, United States
| | - Hong-Zhou Ye
- Department of Chemistry, Columbia University, New York, New York 10027, United States
| | - Timothy C Berkelbach
- Department of Chemistry, Columbia University, New York, New York 10027, United States
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14
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Spackman PR, Spackman MA, Gale JD. A transferable quantum mechanical energy model for intermolecular interactions using a single empirical parameter. IUCRJ 2023; 10:754-765. [PMID: 37903099 PMCID: PMC10619445 DOI: 10.1107/s2052252523008941] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/22/2023] [Accepted: 10/12/2023] [Indexed: 11/01/2023]
Abstract
The calculation of intermolecular interactions in molecular crystals using model energies provides a unified route to understanding the complex interplay of driving forces in crystallization, elastic properties and more. Presented here is a new single-parameter interaction energy model (CE-1p), extending the previous CrystalExplorer energy model and calibrated using density functional theory (DFT) calculations at the ωB97M-V/def2-QZVP level over 1157 intermolecular interactions from 147 crystal structures. The new model incorporates an improved treatment of dispersion interactions and polarizabilities using the exchange-hole dipole model (XDM), along with the use of effective core potentials (ECPs), facilitating application to molecules containing elements across the periodic table (from H to Rn). This new model is validated against high-level reference data with outstanding performance, comparable to state-of-the-art DFT methods for molecular crystal lattice energies over the X23 set (mean absolute deviation 3.6 kJ mol-1) and for intermolecular interactions in the S66x8 benchmark set (root mean-square deviation 3.3 kJ mol-1). The performance of this model is further examined compared to the GFN2-xTB tight-binding model, providing recommendations for the evaluation of intermolecular interactions in molecular crystal systems.
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Affiliation(s)
- Peter R. Spackman
- School of Molecular and Life Sciences, Curtin University, Perth, Western Australia 6845, Australia
| | - Mark A. Spackman
- School of Molecular Sciences, University of Western Australia, Perth, Western Australia 6009, Australia
| | - Julian D. Gale
- School of Molecular and Life Sciences, Curtin University, Perth, Western Australia 6845, Australia
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15
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Spackman PR, Walisinghe AJ, Anderson MW, Gale JD. CrystalClear: an open, modular protocol for predicting molecular crystal growth from solution. Chem Sci 2023; 14:7192-7207. [PMID: 37416706 PMCID: PMC10321482 DOI: 10.1039/d2sc06761g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Accepted: 05/22/2023] [Indexed: 07/08/2023] Open
Abstract
We present a new protocol for the prediction of free energies that determine the growth of sites in molecular crystals for subsequent use in Monte Carlo simulations using tools such as CrystalGrower [Hill et al., Chemical Science, 2021, 12, 1126-1146]. Key features of the proposed approach are that it requires minimal input, namely the crystal structure and solvent only, and provides automated, rapid generation of the interaction energies. The constituent components of this protocol, namely interactions between molecules (growth units) in the crystal, solvation contributions and treatment of long-range interactions are described in detail. The power of this method is shown via prediction of crystal shapes for ibuprofen grown from ethanol, ethyl acetate, toluene and acetonitrile, adipic acid grown from water, and five polymorphs (ON, OP, Y, YT04 and R) of ROY (5-methyl-2-[(2-nitrophenyl)amino]-3-thiophenecarbonitrile), with promising results. The predicted energies may be used directly or subsequently refined against experimental data, facilitating insight into the interactions governing crystal growth, while also providing a prediction of the solubility of the material. The protocol has been implemented in standalone, open-source software made available alongside this publication.
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Affiliation(s)
- Peter R Spackman
- Curtin Institute for Computation, School of Molecular and Life Sciences, Curtin University GPO Box U1987 Perth Western Australia 6845 Australia
| | - Alvin J Walisinghe
- Curtin Institute for Computation, School of Molecular and Life Sciences, Curtin University GPO Box U1987 Perth Western Australia 6845 Australia
- Centre for Nanoporous Materials, Department of Chemistry, The University of Manchester Oxford Road Manchester M13 9PL UK
| | - Michael W Anderson
- Curtin Institute for Computation, School of Molecular and Life Sciences, Curtin University GPO Box U1987 Perth Western Australia 6845 Australia
- Centre for Nanoporous Materials, Department of Chemistry, The University of Manchester Oxford Road Manchester M13 9PL UK
| | - Julian D Gale
- Curtin Institute for Computation, School of Molecular and Life Sciences, Curtin University GPO Box U1987 Perth Western Australia 6845 Australia
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16
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Al-Omary FM, Alvarez N, Al-Rasheed LS, Veiga N, Hassan HM, El-Emam AA. Novel Adamantane-Linked Isothiourea Derivatives as Potential Chemotherapeutic Agents: Synthesis, Structural Insights, and Antimicrobial/Anti-Proliferative Profiles. ACS OMEGA 2023; 8:13465-13477. [PMID: 37065023 PMCID: PMC10099428 DOI: 10.1021/acsomega.3c01469] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/04/2023] [Accepted: 03/20/2023] [Indexed: 06/19/2023]
Abstract
In this study, two adamantane-linked isothiourea derivatives containing a common 4-chlorophenyl substituent coupled with 4-nitrobenzyl or 4-bromobenzyl moieties were synthesized. Both derivatives were characterized, in the solid state and in solution, through a synergistic combination of experimental and in silico techniques, and the results are of great value for the chemical and structural characterization of related compounds. The crystal structures of both derivatives were analyzed in depth, including Hirshfeld surface analysis and lattice energy calculations, revealing a predominant dispersive component of the total energy that stabilizes crystal packing. Both compounds showed potent broad-spectrum antibacterial activity and moderate activity against the pathogenic fungus Candida albicans. In addition, in vitro anti-proliferative activity assays showed that the 4-bromobenzyl analogue displays higher activity than the 4-nitrobenzyl one, with IC50 values under 30 μM against five human cancer cell lines. Our results give evidence of the potential of the adamantane/isothiourea combination to render auspicious scaffolds for new potential chemotherapeutic agents.
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Affiliation(s)
- Fatmah
A. M. Al-Omary
- Department
of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Natalia Alvarez
- Química
Inorgánica, Facultad de Química, Universidad de la República, Av. General Flores 2124, Montevideo 11800, Uruguay
| | - Lamees S. Al-Rasheed
- Department
of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Nicolás Veiga
- Química
Inorgánica, Facultad de Química, Universidad de la República, Av. General Flores 2124, Montevideo 11800, Uruguay
| | - Hanan M. Hassan
- Department
of Pharmacology and Biochemistry, Faculty of Pharmacy, Delta University for Science and Technology, International Costal Road, Gamasa
City, Mansoura 11152, Egypt
| | - Ali A. El-Emam
- Department
of Medicinal Chemistry, Faculty of Pharmacy, Mansoura University, Mansoura 35516, Egypt
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17
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Li W, Zhou L, Tian B, Chen K, Feng Y, Wang T, Wang N, Huang X, Hao H. Polymorphism of Pradofloxacin: Crystal Structure Analysis, Stability Study, and Phase Transformation Behavior. Pharm Res 2023; 40:999-1012. [PMID: 37029294 DOI: 10.1007/s11095-023-03509-w] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Accepted: 03/26/2023] [Indexed: 04/09/2023]
Abstract
PURPOSE Pradofloxacin is an important antibiotic with poor physical stability. At present, there is no systematic study on its polymorphic form. The purpose of this study is to develop new crystal forms to improve the stability of Pradofloxacin and systematically study the crystal transformation relationships to guide industrial production. METHOD In this work, three solvent-free forms (Form A, Form B and Form C), a new dimethyl sulfoxide solvate (Form PL-DMSO) and a new hydrate (Form PL-H) were successfully obtained and the single crystal data of Form A, Form B and Form PL-DMSO were solved for the first time. Various solid state analysis techniques and slurry experiments have been used to evaluate the stability and determine phase transformation relationships of five crystal forms, the analysis of crystal structure provided theoretical support for the results. RESULT The water vapor adsorption and desorption experiences of Forms A, B, C and Form PL-H were studied, and the results show that the new hydrate has good hygroscopic stability and certain development potential. The thermal stability of different forms was determined by thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC) and the crystal structure shows that there are more hydrogen bonds and C - H···π interactions in form B, which is the reason why Form B is more stable than form A. Finally, the phase transformation relationships of the five crystal forms were systematically studied and discussed. CONCLUSION These results are helpful to provide guiding methods in the production and storage of pradofloxacin.
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Affiliation(s)
- Wenlei Li
- National Engineering Research Center of Industrial Crystallization Technology, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, China
| | - Lina Zhou
- National Engineering Research Center of Industrial Crystallization Technology, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, China
| | - Beiqian Tian
- National Engineering Research Center of Industrial Crystallization Technology, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, China
| | - Kui Chen
- National Engineering Research Center of Industrial Crystallization Technology, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, China
| | - Yaoguang Feng
- National Engineering Research Center of Industrial Crystallization Technology, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, China
| | - Ting Wang
- National Engineering Research Center of Industrial Crystallization Technology, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, China
- State Key Laboratory of Chemical Engineering, Tianjin University, Tianjin, 30072, China
| | - Na Wang
- National Engineering Research Center of Industrial Crystallization Technology, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, China
- State Key Laboratory of Chemical Engineering, Tianjin University, Tianjin, 30072, China
| | - Xin Huang
- National Engineering Research Center of Industrial Crystallization Technology, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, China.
- State Key Laboratory of Chemical Engineering, Tianjin University, Tianjin, 30072, China.
- Zhejiang Institute of Tianjin University, Ningbo, 315200, China.
| | - Hongxun Hao
- National Engineering Research Center of Industrial Crystallization Technology, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, China.
- State Key Laboratory of Chemical Engineering, Tianjin University, Tianjin, 30072, China.
- School of Chemical Engineering and Technology, Hainan University, Haikou, 570208, China.
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18
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Samigullina AI, Galimullina VR, Kadyrova SF, Krivolapov DB, Mamedov VA, Gubaidullin AT. FEATURES OF THE CRYSTAL STRUCTURES OF THREE POLYMORPHS OF (RS,SR)-1-BENZYL- 3-(α,4-DICHLOROBENZYL)-3-HYDROXYINDOLIN-2-ONE. J STRUCT CHEM+ 2023. [DOI: 10.1134/s0022476623020026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/11/2023]
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19
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Price AJA, Otero-de-la-Roza A, Johnson ER. XDM-corrected hybrid DFT with numerical atomic orbitals predicts molecular crystal lattice energies with unprecedented accuracy. Chem Sci 2023; 14:1252-1262. [PMID: 36756332 PMCID: PMC9891363 DOI: 10.1039/d2sc05997e] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2022] [Accepted: 12/13/2022] [Indexed: 12/23/2022] Open
Abstract
Molecular crystals are important for many applications, including energetic materials, organic semiconductors, and the development and commercialization of pharmaceuticals. The exchange-hole dipole moment (XDM) dispersion model has shown good performance in the calculation of relative and absolute lattice energies of molecular crystals, although it has traditionally been applied in combination with plane-wave/pseudopotential approaches. This has limited XDM to use with semilocal functional approximations, which suffer from delocalization error and poor quality conformational energies, and to systems with a few hundreds of atoms at most due to unfavorable scaling. In this work, we combine XDM with numerical atomic orbitals, which enable the efficient use of XDM-corrected hybrid functionals for molecular crystals. We test the new XDM-corrected functionals for their ability to predict the lattice energies of molecular crystals for the X23 set and 13 ice phases, the latter being a particularly stringent test. A composite approach using a XDM-corrected, 25% hybrid functional based on B86bPBE achieves a mean absolute error of 0.48 kcal mol-1 per molecule for the X23 set and 0.19 kcal mol-1 for the total lattice energies of the ice phases, compared to recent diffusion Monte-Carlo data. These results make the new XDM-corrected hybrids not only far more computationally efficient than previous XDM implementations, but also the most accurate density-functional methods for molecular crystal lattice energies to date.
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Affiliation(s)
- Alastair J. A. Price
- Department of Chemistry, Dalhousie University6274 Coburg RdHalifaxB3H 4R2Nova ScotiaCanada
| | - Alberto Otero-de-la-Roza
- Departamento de Química Física y Analítica and MALTA-Consolider Team, Facultad de Química, Universidad de Oviedo Oviedo 33006 Spain
| | - Erin R. Johnson
- Department of Chemistry, Dalhousie University6274 Coburg RdHalifaxB3H 4R2Nova ScotiaCanada
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20
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Kelley SP, Mossine VV, Mawhinney TP. Crystal structure of hydrazinium methanesulfonate, CH 8N 2O 3S. Z KRIST-NEW CRYST ST 2023. [DOI: 10.1515/ncrs-2023-0022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Abstract
CH8N2O3S, monoclinic, P21/c (no. 14), a = 9.7583 (16) Å, b = 5.4033 (9) Å, c = 10.4729 (17) Å, β = 110.483 (4)°, V = 517.29 (15) Å3, Z = 1, R
gt(F) = 0.0225, wR
ref(F
2) = 0.0649, T = 150 K.
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Affiliation(s)
- Steven P. Kelley
- Department of Chemistry Columbia , University of Missouri , Columbia , MO 65211 , USA
| | - Valeri V. Mossine
- Department of Biochemistry Columbia , University of Missouri , Columbia , MO 65211 , USA
| | - Thomas P. Mawhinney
- Department of Biochemistry Columbia , University of Missouri , Columbia , MO 65211 , USA
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21
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Miroslaw B, Demchuk OM, Luboradzki R, Tyszczuk-Rotko K. Low-Molecular-Weight Organogelators Based on N-dodecanoyl-L-amino Acids-Energy Frameworks and Supramolecular Synthons. MATERIALS (BASEL, SWITZERLAND) 2023; 16:702. [PMID: 36676438 PMCID: PMC9867098 DOI: 10.3390/ma16020702] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Revised: 12/30/2022] [Accepted: 01/09/2023] [Indexed: 06/17/2023]
Abstract
Lauric acid was used to synthesize the low-molecular-weight organogelators (LMOGs), derivatives of two endogenous (L)-alanine, (L)-leucine, and three exogenous (L)-valine, (L)-phenylalanine, and (L)-proline amino acids. The nature of processes responsible for the gel formation both in polar and in apolar solvents of such compounds is still under investigation. Knowing that the organization of surfactant molecules affects the properties of nano scale materials and gels, we decided to elucidate this problem using crystallographic diffraction and energy frameworks analysis. The single crystals of the mentioned compounds were produced successfully from heptane/tBuOMe mixture. The compounds form lamellar self-assemblies in crystals. The energetic landscapes of single crystals of a series of studied amphiphilic gelators have been analyzed to explore the gelling properties. The presented results may be used as model systems to understand which supramolecular interactions observed in the solid state and what energy contributions are desired in the designing of new low-molecular-weight organic gelators.
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Affiliation(s)
- Barbara Miroslaw
- Institute of Chemical Sciences, Faculty of Chemistry, Maria Curie-Sklodowska University in Lublin, 20-031 Lublin, Poland
| | - Oleg M. Demchuk
- Faculty of Medicine, The John Paul II Catholic University of Lublin, 1h-Konstantynów St., 20-708 Lublin, Poland
| | - Roman Luboradzki
- Institute of Physical Chemistry, Polish Academy of Sciences, 01-224 Warsaw, Poland
| | - Katarzyna Tyszczuk-Rotko
- Institute of Chemical Sciences, Faculty of Chemistry, Maria Curie-Sklodowska University in Lublin, 20-031 Lublin, Poland
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22
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Dhondale MR, Thakor P, Nambiar AG, Singh M, Agrawal AK, Shastri NR, Kumar D. Co-Crystallization Approach to Enhance the Stability of Moisture-Sensitive Drugs. Pharmaceutics 2023; 15:pharmaceutics15010189. [PMID: 36678819 PMCID: PMC9864382 DOI: 10.3390/pharmaceutics15010189] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2022] [Revised: 12/07/2022] [Accepted: 12/30/2022] [Indexed: 01/06/2023] Open
Abstract
Stability is an essential quality attribute of any pharmaceutical formulation. Poor stability can change the color and physical appearance of a drug, directly impacting the patient's perception. Unstable drug products may also face loss of active pharmaceutical ingredients (APIs) and degradation, making the medicine ineffective and toxic. Moisture content is known to be the leading cause of the degradation of nearly 50% of medicinal products, leading to impurities in solid dose formulations. The polarity of the atoms in an API and the surface chemistry of API particles majorly influence the affinity towards water molecules. Moisture induces chemical reactions, including free water that has also been identified as an important factor in determining drug product stability. Among the various approaches, crystal engineering and specifically co-crystals, have a proven ability to increase the stability of moisture-sensitive APIs. Other approaches, such as changing the salt form, can lead to solubility issues, thus making the co-crystal approach more suited to enhancing hygroscopic stability. There are many reported studies where co-crystals have exhibited reduced hygroscopicity compared to pure API, thereby improving the product's stability. In this review, the authors focus on recent updates and trends in these studies related to improving the hygroscopic stability of compounds, discuss the reasons behind the enhanced stability, and briefly discuss the screening of co-formers for moisture-sensitive drugs.
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Affiliation(s)
- Madhukiran R. Dhondale
- Department of Pharmaceutical Engineering and Technology, Indian Institute of Technology (BHU), Varanasi 221005, India
| | - Pradip Thakor
- Natco Research Center, Natco Pharma Limited, Hyderabad 500018, India
| | - Amritha G. Nambiar
- Department of Pharmaceutical Engineering and Technology, Indian Institute of Technology (BHU), Varanasi 221005, India
| | - Maan Singh
- Department of Pharmaceutical Engineering and Technology, Indian Institute of Technology (BHU), Varanasi 221005, India
| | - Ashish K. Agrawal
- Department of Pharmaceutical Engineering and Technology, Indian Institute of Technology (BHU), Varanasi 221005, India
| | | | - Dinesh Kumar
- Department of Pharmaceutical Engineering and Technology, Indian Institute of Technology (BHU), Varanasi 221005, India
- Correspondence:
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23
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Li M, Tang W, Gong J. Unusual shape-preserved pathway of a core-shell phase transition triggered by orientational disorder. IUCRJ 2023; 10:38-51. [PMID: 36598501 PMCID: PMC9812221 DOI: 10.1107/s2052252522011034] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/10/2022] [Accepted: 11/17/2022] [Indexed: 05/29/2023]
Abstract
The ubiquitous presence of crystal defects provides great potential and opportunities to construct the desired structure (hence with the desired properties) and tailor the synthetic process of crystalline materials. However, little is known about their regulation role in phase transition and crystallization pathways. It was generally thought that a phase transition in solution proceeds predominantly via the solvent-mediated phase-transformation pathway due to energetically high-cost solid-state phase transitions (if any). Herein, we report an unprecedented finding that an orientational disorder defect present in the crystal structure triggers an unusual pathway of a core-shell phase transition with apparent shape-preserved evolution. In the pathway, the solid-state dehydration phase transition occurs inside the crystal prior to its competitive transformation approach mediated by solvent, forming an unconventional core-shell structure. Through a series of combined experimental and computational techniques, we revealed that the presence of crystal defects, introduced by urate tautomerism over the course of crystallization, elevates the metastability of uric acid dihydrate (UAD) crystals and triggers UAD dehydration to the uric acid anhydrate (UAA) phase in the crystal core which precedes with surface dissolution of the shell UAD crystal and recrystallization of the core phase. This unique phase transition could also be related to defect density, which appears to be influenced by the thickness of UAD crystals and crystallization driving force. The discovery of an unusual pathway of the core-shell phase transition suggests that the solid-state phase transition is not necessarily slower than the solvent-mediated phase transformation in solution and provides an alternative approach to constructing the core-shell structure. Moreover, the fundamental role of orientational disorder defects on the phase transition identified in this study demonstrates the feasibility to tailor phase transition and crystallization pathways by strategically importing crystal defects, which has broad applications in crystal engineering.
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Affiliation(s)
- Mengya Li
- School of Chemical Engineering and Technology, State Key Laboratory of Chemical Engineering, Tianjin University, Tianjin 300072, People’s Republic of China
- Collaborative Innovation Center of Chemistry Science and Engineering, Tianjin 300072, People’s Republic of China
| | - Weiwei Tang
- School of Chemical Engineering and Technology, State Key Laboratory of Chemical Engineering, Tianjin University, Tianjin 300072, People’s Republic of China
- Collaborative Innovation Center of Chemistry Science and Engineering, Tianjin 300072, People’s Republic of China
- Key Laboratory Modern Drug Delivery and High Efficiency, Tianjin University, Tianjin 300072, People’s Republic of China
| | - Junbo Gong
- School of Chemical Engineering and Technology, State Key Laboratory of Chemical Engineering, Tianjin University, Tianjin 300072, People’s Republic of China
- Collaborative Innovation Center of Chemistry Science and Engineering, Tianjin 300072, People’s Republic of China
- Key Laboratory Modern Drug Delivery and High Efficiency, Tianjin University, Tianjin 300072, People’s Republic of China
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24
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Bhoday H, Kelley SP, Glaser R. Polar and non-polar stacking of perfectly aligned parallel beloamphiphile monolayers (PBAMs) of (PhO, F)-azine. The interplay of non-covalent interlayer interactions and unit cell polarity. CrystEngComm 2023. [DOI: 10.1039/d3ce00021d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/29/2023]
Abstract
The differences are discussed of the antiferroelectric and ferroelectric stacking of the PBAMs of the polymorphs of (PhO, F)-azine. We will show how non-covalent interlayer H⋯F and F⋯F interactions between the PBAM surfaces affect their stacking.
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25
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Xing W, Yu H, Zhang B, Liu M, Zhang L, Wang F, Gong N, Lu Y. Quantitative Analysis the Weak Non-Covalent Interactions of the Polymorphs of Donepezil. ACS OMEGA 2022; 7:36434-36440. [PMID: 36278075 PMCID: PMC9583094 DOI: 10.1021/acsomega.2c04201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Accepted: 09/23/2022] [Indexed: 06/16/2023]
Abstract
Donepezil has polymorphism. Different crystalline forms can exhibit different physicochemical properties and biological activities. Exploration of intermolecular interactions is essential to reveal the formation mechanism and differences in properties of polymorphs. This study explores the weak non-covalent intermolecular interactions of donepezil polymorphs through fully ab initio quantum mechanical methods, semi-empirical methods, and Hirshfeld surface analysis. The results show that the Hirshfeld surface analysis method can clearly and intuitively reveal the intermolecular interactions. Theoretical calculations using the atom-atom Coulomb-London-Pauli (AA-CLP) method were also performed to understand the interaction energies toward the total lattice energy. The value of the lattice energy was in accordance with the melting points of the donepezil polymorphs and brought to light the nature of thermal stability. In the specific energy distribution, the contribution of the dispersion force is the most prominent. Further interaction energy analysis found that within a distance of 3.8 Å from the center of the donepezil molecule, different crystalline forms of donepezil molecules have different interaction energies with surrounding molecules. The different interaction energies between polymorphs may lead to polymorphs with different physical-chemical properties.
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Affiliation(s)
- Wenhui Xing
- Beijing
Key Laboratory of Polymorphic Drugs, Institute
of Materia Medica, Chinese Academy of Medical Sciences and Peking
Union Medical College, Beijing100050, China
| | - Hongmei Yu
- Beijing
Key Laboratory of Polymorphic Drugs, Institute
of Materia Medica, Chinese Academy of Medical Sciences and Peking
Union Medical College, Beijing100050, China
| | - Baoxi Zhang
- Beijing
Key Laboratory of Polymorphic Drugs, Institute
of Materia Medica, Chinese Academy of Medical Sciences and Peking
Union Medical College, Beijing100050, China
| | - Meiju Liu
- Beijing
Key Laboratory of Polymorphic Drugs, Institute
of Materia Medica, Chinese Academy of Medical Sciences and Peking
Union Medical College, Beijing100050, China
| | - Li Zhang
- Beijing
Key Laboratory of Polymorphic Drugs, Institute
of Materia Medica, Chinese Academy of Medical Sciences and Peking
Union Medical College, Beijing100050, China
| | - Fengfeng Wang
- National
Institutes for Food and Drug Control, Beijing102629, China
| | - Ningbo Gong
- Beijing
Key Laboratory of Polymorphic Drugs, Institute
of Materia Medica, Chinese Academy of Medical Sciences and Peking
Union Medical College, Beijing100050, China
| | - Yang Lu
- Beijing
Key Laboratory of Polymorphic Drugs, Institute
of Materia Medica, Chinese Academy of Medical Sciences and Peking
Union Medical College, Beijing100050, China
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26
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Amado PSM, Jesus AJL, Paixão JA, Fausto R, Cristiano MLS. Unravelling the structure of peroxides with antiparasitic activity: relative impact of a trioxolane or a tetraoxane pharmacophore on the overall molecular structure. Chempluschem 2022; 87:e202200207. [DOI: 10.1002/cplu.202200207] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2022] [Revised: 08/04/2022] [Indexed: 11/09/2022]
Affiliation(s)
- Patrícia S. M. Amado
- University of Algarve Faculty of Science and Technology: Universidade do Algarve Faculdade de Ciencias e Tecnologia Chemistry and Pharmacy PORTUGAL
| | - A. J. Lopes Jesus
- University of Coimbra Faculty of Pharmacy: Universidade de Coimbra Faculdade de Farmacia Chemistry PORTUGAL
| | - José A. Paixão
- University of Coimbra Faculty of Sciences and Technology: Universidade de Coimbra Faculdade de Ciencias e Tecnologia Department of Physics PORTUGAL
| | - Rui Fausto
- University of Coimbra Faculty of Sciences and Technology: Universidade de Coimbra Faculdade de Ciencias e Tecnologia Department of Chemistry PORTUGAL
| | - M. Lurdes S. Cristiano
- Universidade do Algarve Faculdade de Ciencias e Tecnologia Quimica e Farmácia Campus de Gambelas 8005-139 Faro PORTUGAL
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27
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Takimiya K, Bulgarevich K, Sahara K, Kanazawa K, Takenaka H, Kawabata K. What defines a crystal structure? Effects of chalcogen atoms in 3,7‐bis(methylchalcogeno)benzo[1,2‐
b
:4,5‐
b
′]dichalcogenophene‐based organic semiconductors. CHINESE J CHEM 2022. [DOI: 10.1002/cjoc.202200302] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Kazuo Takimiya
- Department of Chemistry Graduate School of Science, Tohoku University, 6‐3 Aoba, Aramaki, Aoba‐ku Sendai Miyagi 980‐8578 Japan
- RIKEN Center for Emergent Matter Science (CEMS), 2‐1 Hirosawa Wako Saitama 351‐0198 Japan
- Advanced Institute for Materials Research, Tohoku University (WPI‐AIMR), 2‐1‐1 Katahira, Aoba‐ku Sendai Miyagi 980‐8577 Japan
| | - Kirill Bulgarevich
- RIKEN Center for Emergent Matter Science (CEMS), 2‐1 Hirosawa Wako Saitama 351‐0198 Japan
| | - Kamon Sahara
- Department of Chemistry Graduate School of Science, Tohoku University, 6‐3 Aoba, Aramaki, Aoba‐ku Sendai Miyagi 980‐8578 Japan
| | - Kiseki Kanazawa
- Department of Chemistry Graduate School of Science, Tohoku University, 6‐3 Aoba, Aramaki, Aoba‐ku Sendai Miyagi 980‐8578 Japan
- RIKEN Center for Emergent Matter Science (CEMS), 2‐1 Hirosawa Wako Saitama 351‐0198 Japan
| | - Hiroyuki Takenaka
- Department of Chemistry Graduate School of Science, Tohoku University, 6‐3 Aoba, Aramaki, Aoba‐ku Sendai Miyagi 980‐8578 Japan
| | - Kohsuke Kawabata
- Department of Chemistry Graduate School of Science, Tohoku University, 6‐3 Aoba, Aramaki, Aoba‐ku Sendai Miyagi 980‐8578 Japan
- RIKEN Center for Emergent Matter Science (CEMS), 2‐1 Hirosawa Wako Saitama 351‐0198 Japan
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28
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Hosseinpoor S, Pourayoubi M, Dušek M, Skořepová E. A comparative conformational study of (C 6H 5O) 2P(O)(NHC(S)NHCH 2C 6H 5) and analogous X-ray structures: energy calculations (solid-state/gas phase). PHOSPHORUS SULFUR 2022. [DOI: 10.1080/10426507.2021.2021523] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Saeed Hosseinpoor
- Department of Chemistry, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Mehrdad Pourayoubi
- Department of Chemistry, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Michal Dušek
- Institute of Physics of the Czech Academy of Sciences, Prague 8, Czech Republic
| | - Eliška Skořepová
- Institute of Physics of the Czech Academy of Sciences, Prague 8, Czech Republic
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29
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Hawkins BA, Du JJ, Lai F, Stanton SA, Williams PA, Groundwater PW, Platts JA, Overgaard J, Hibbs DE. An experimental and theoretical charge density study of theophylline and malonic acid cocrystallization. RSC Adv 2022; 12:15670-15684. [PMID: 35685708 PMCID: PMC9126648 DOI: 10.1039/d1ra08389a] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Accepted: 02/16/2022] [Indexed: 11/29/2022] Open
Abstract
The pharmaceutical agent theophylline (THEO) is primarily used as a bronchodilator and is commercially available in both tablet and liquid dosage forms. THEO is highly hygroscopic, reducing its stability, overall shelf-life, and therefore usage as a drug. THEO and dicarboxylic acid cocrystals were designed by Trask et al. in an attempt to decrease the hygroscopic behaviour of THEO; cocrystallisation of THEO with malonic acid (MA) did not improve the hygroscopic stability of THEO in simulated atmospheric humidity testing. The current study employed high-resolution X-ray crystallography, and Density Functional Theory (DFT) calculations to examine the electron density distribution (EDD) changes between the cocrystal and its individual components. The EED changes identified the reasons why the THEO:MA cocrystal did not alter the hygroscopic profile of THEO. The cocrystal was equally porous, with atomic packing factors (APF) similar to those of THEO 0.73 vs. 0.71, respectively. The THEO:MA (1) cocrystal structure is held together by an array of interactions; a heterogeneous synthon between the imidazole and a carboxylic fragment stabilising the asymmetric unit, a pyrimidine-imidazole homosynthon, and an aromatic cycle stack between two THEO moieties have been identified, providing 9.7-12.9 kJ mol-1 of stability. These factors did not change the overall relative stability of the cocrystal relative to its individual THEO and MA components, as shown by cocrystal (1) and THEO being equally stable, with calculated lattice energies within 2.5 kJ mol-1 of one other. The hydrogen bond analysis and fragmented atomic charge analysis highlighted that the formation of (1) combined both the EDD of THEO and MA with no net chemical change, suggesting that the reverse reaction - (1) back to THEO and MA - is of equal potential, ultimately producing THEO hydrate formation, in agreement with the work of Trask et al. These results highlight that a review of the EDD change associated with a chemical reaction can aid in understanding cocrystal design. In addition, they indicate that cocrystal design requires further investigation before becoming a reliable process, with particular emphasis on identifying the appropriate balance of synthon engineering, weak interactions, and packing dynamics.
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Affiliation(s)
- Bryson A Hawkins
- Sydney Pharmacy School, Faculty of Medicine and Health, The University of Sydney NSW 2006 Australia
| | - Jonathan J Du
- Sydney Pharmacy School, Faculty of Medicine and Health, The University of Sydney NSW 2006 Australia
| | - Felcia Lai
- Sydney Pharmacy School, Faculty of Medicine and Health, The University of Sydney NSW 2006 Australia
| | - Stephen A Stanton
- Sydney Pharmacy School, Faculty of Medicine and Health, The University of Sydney NSW 2006 Australia
| | - Peter A Williams
- Sydney Pharmacy School, Faculty of Medicine and Health, The University of Sydney NSW 2006 Australia
- School of Science and Health, Western Sydney University Locked Bag 1797 Penrith NSW 27513 Australia
| | - Paul W Groundwater
- Sydney Pharmacy School, Faculty of Medicine and Health, The University of Sydney NSW 2006 Australia
| | - James A Platts
- School of Chemistry, Cardiff University Cardiff CF10 3AT UK
| | - Jacob Overgaard
- Department of Chemistry and Centre for Integrated Materials Research (iMAT), Aarhus University Langelandsgade 140, Aarhus C DK-8000 Denmark
| | - David E Hibbs
- Sydney Pharmacy School, Faculty of Medicine and Health, The University of Sydney NSW 2006 Australia
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30
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Hasija A, Som S, Chopra D. Investigation of crystal structures, energetics and isostructurality in halogen-substituted phosphoramidates. ACTA CRYSTALLOGRAPHICA SECTION B, STRUCTURAL SCIENCE, CRYSTAL ENGINEERING AND MATERIALS 2022; 78:179-194. [PMID: 35411857 DOI: 10.1107/s2052520622000889] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2021] [Accepted: 01/24/2022] [Indexed: 06/14/2023]
Abstract
A total of 14 compounds, one unsubstituted and 13 halogen-substituted phosphoramidates, have been synthesized from unsubstituted and halogenated (fluoro-, difluoro-, chloro-, bromo-, iodo-substituted) aniline and diphenyl phosphoryl chloride to investigate their molecular assembly in solid-state structures. Amongst them, six groups were formed based on similarities in unit-cell dimensions, space group and molecular assembly of the crystal. The analysis reveals that all the crystal structures contain robust N-H...O hydrogen bonds which are the primary building blocks with ancillary interactions such as C-H...O, C-H...π, C-H...F/Cl/Br/I, F...F, F...π, I...π, Br...π, I...O and Br...O. The role of short and directional C-H...O and C-H...π interactions providing significant stabilization to the densely packed crystalline arrangement is discussed. The contribution of these interactions in stabilizing the crystalline assembly was deduced via computing total interaction energy between dimers and the overall lattice energies using the computer programs Crystal Explorer 17.5 and PIXELC, respectively. Additionally, the occurrence of 3D isostructurality in phosphoradimates and their halogenated analogs was investigated using the XPac program. A comparison of the magnitudes of the torsion angles in the compounds substantiates the role of conformational flexibility in the solid state.
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Affiliation(s)
- Avantika Hasija
- Department of Chemistry, Indian Institute of Science Education and Research, Bhopal By-Pass Road, Bhopal, Madhya Pradesh 462066, India
| | - Shubham Som
- Department of Chemistry, Indian Institute of Science Education and Research, Bhopal By-Pass Road, Bhopal, Madhya Pradesh 462066, India
| | - Deepak Chopra
- Department of Chemistry, Indian Institute of Science Education and Research, Bhopal By-Pass Road, Bhopal, Madhya Pradesh 462066, India
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31
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Grosu IG, Martin F, Turza A, Miclaus M, Kacso I, Borodi G. Structural studies of various olmesartan solvates. ACTA CRYSTALLOGRAPHICA SECTION C STRUCTURAL CHEMISTRY 2022; 78:240-249. [DOI: 10.1107/s2053229622002984] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/10/2022] [Accepted: 03/17/2022] [Indexed: 11/10/2022]
Abstract
Seven solvates of the angiotensin II receptor blocker agent olmesartan (C24H26N6O3), namely, the methanol (C24H26N6O3·CH4O), ethanol (C24H26N6O3·C2H6O), isopropanol (C24H26N6O3·C3H8O), isobutanol (C24H26N6O3·C4H10O), 2-ethoxyethanol (C24H26N6O3·C4H10O2), chloroform (C24H26N6O3·CHCl3) and acetonitrile (C24H26N6O3·C2H3N) solvates, were successfully obtained. The crystal structures were determined using the single-crystal X-ray diffraction technique and the structural features are described, each solvate containing one molecule of olmesartan and one of solvent in the asymmetric unit. The samples were also analyzed by powder X-ray diffraction. Total lattice energies and binding energies between the olmesartan and solvent molecules were evaluated, which can be partitioned into electrostatic, polarization, dispersion and repulsion components. Hirshfeld and fingerprint plot analysis was performed to highlight the intermolecular contacts. Hydrogen bonding and supramolecular arrangements were comparatively studied for the seven solvates.
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32
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Long-Range Supramolecular Synthon Isomerism: Insight from a Case Study of Vinylic Tellurium Trihalides Cl(Ph)C=C(Ph)TeX3 (X = Cl, I). CHEMISTRY 2022. [DOI: 10.3390/chemistry4010017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
A slight modification of the synthetic procedure resulted in a new (Cc) polymorph of vinylic tellurium-trichloride Z-Cl(Ph)C=C(Ph)TeCl3 (1, β-form) which is stabilized by Te⋯Cl chalcogen bonds, assembling its molecules into the zigzag chains. Such a packing motive is in contrast to the known (Pca21) polymorph of Z-Cl(Ph)C=C(Ph)TeCl3 (1, α-form, CCDC refcode: BESHOW), which is built upon Te⋯π(Ph) chalcogen bonded chains. We noted a similar case of [Te⋯halogen] vs. [Te⋯π(Ph)] supramolecular synthon polymorphism in its triiodide congener Z-Cl(Ph)C=CPh(TeI3) (2, α and β-polymorphic forms). Quantum chemical calculations of the intermolecular interaction and lattice energies for 1α–β and 2α–β supported the assumption that α is thermodynamic while β is a kinetic form. Kinetic forms 1β and 2β are isostructural (Cc), while the thermodynamic forms 1α (Pca21) and 2α (P21/c) are not and feature an unusual example of long-range supramolecular synthon module isomerism. In other words, 1α–2α pairs demonstrate very similarly to isostructural Te⋯πPh ChB stabilized chains, which are further packed differently relative to each other, following different angular geometry of type-I Cl⋯Cl and type-II I⋯I halogen bonding. These structural considerations are backed by quantum chemical calculations that support the proposed hierarchy of primary and secondary supramolecular synthons and the assignment of α and β as thermodynamic and kinetic forms, respectively.
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33
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Rostán S, Alvarez N, Veiga N, Otero L, Mahler G. New preparation protocols for coumarin-thiosemicarbazone hybrids: Solid state characterization, and in silico/NMR studies of the Z/E isomerization equilibria in solution. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2021.131980] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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34
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Yin Q, Alexandrov EV, Si D, Huang Q, Fang Z, Zhang Y, Zhang A, Qin W, Li Y, Liu T, Proserpio DM. Metallization‐Prompted Robust Porphyrin‐Based Hydrogen‐Bonded Organic Frameworks for Photocatalytic CO
2
Reduction. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202115854] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Qi Yin
- State Key Laboratory of Structural Chemistry Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences 350002, Fujian Fuzhou P. R. China
| | - Eugeny V. Alexandrov
- Samara Center for Theoretical Material Science (SCTMS) Samara State Technical University Samara 443100 Russia
- Institute of Experimental Medicine and Biotechnology Samara State Medical University 443099 Samara Russia
| | - Duan‐Hui Si
- State Key Laboratory of Structural Chemistry Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences 350002, Fujian Fuzhou P. R. China
| | - Qian‐Qian Huang
- State Key Laboratory of Structural Chemistry Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences 350002, Fujian Fuzhou P. R. China
| | - Zhi‐Bin Fang
- State Key Laboratory of Structural Chemistry Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences 350002, Fujian Fuzhou P. R. China
| | - Yuan Zhang
- State Key Laboratory of Structural Chemistry Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences 350002, Fujian Fuzhou P. R. China
| | - An‐An Zhang
- State Key Laboratory of Structural Chemistry Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences 350002, Fujian Fuzhou P. R. China
| | - Wei‐Kang Qin
- State Key Laboratory of Structural Chemistry Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences 350002, Fujian Fuzhou P. R. China
- University of Chinese Academy of Sciences No.19 (A) Yuquan Road Shijingshan District, Beijing 100049 P. R. China
| | - Yu‐Lin Li
- State Key Laboratory of Structural Chemistry Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences 350002, Fujian Fuzhou P. R. China
- University of Chinese Academy of Sciences No.19 (A) Yuquan Road Shijingshan District, Beijing 100049 P. R. China
| | - Tian‐Fu Liu
- State Key Laboratory of Structural Chemistry Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences 350002, Fujian Fuzhou P. R. China
- University of Chinese Academy of Sciences No.19 (A) Yuquan Road Shijingshan District, Beijing 100049 P. R. China
| | - Davide M. Proserpio
- Università degli studi di Milano Dipartimento di Chimica 20133 Milano Italy
- Samara Center for Theoretical Material Science (SCTMS) Samara State Technical University Samara 443100 Russia
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35
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Sethupathi M, Thulasinathan B, Sengottuvelan N, Ponnuchamy K, Perdih F, Alagarsamy A, Karthikeyan M. Macrocyclic "tet a"-Derived Cobalt(III) Complex with a N, N'-Disubstituted Hexadentate Ligand: Crystal Structure, Photonuclease Activity, and as a Photosensitizer. ACS OMEGA 2022; 7:669-682. [PMID: 35036733 PMCID: PMC8756598 DOI: 10.1021/acsomega.1c05306] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/24/2021] [Accepted: 12/08/2021] [Indexed: 06/14/2023]
Abstract
A cobalt(III) complex, [Co(L)]Cl (complex 1, where L = 1,8-[N,N-bis{(3-formyl-2-hydroxy-5-methyl)benzyl}]-1,4,8,11-tetraaza-5,5,7,12,12,14-hexamethylcyclotetradecane) with distorted octahedral geometry has been synthesized and characterized using various spectroscopic techniques. The structure of the ligand has remarkably rich hydrogen intermolecular interactions such as H···H, H···C/C···H, and H···O/O···H that vary with the presence of the metal ion, and the structure of complex 1 has Cl···H interactions; this result has been proved by Hirshfeld surface and two-dimensional (2D) fingerprint maps analyses. The complex exhibits a quasi-reversible Co(III)/Co(II) redox couple with E 1/2 = -0.76 V. Calf thymus DNA (CT DNA) binding abilities of the ligand and complex 1 were confirmed by spectroscopic and electrochemical analyses. According to absorption studies, the ligand and complex 1 bind to CT DNA via intercalative binding mode, with intrinsic binding strengths of 1.41 × 103 and 8.64 × 103 M-1, respectively. A gel electrophoresis assay shows that complex 1 promotes the pUC19 DNA cleavage under dark and light irradiation conditions. Complex 1 has superior antimicrobial activity than the ligand. The cytotoxicity of complex 1 was tested against MDA-MB-231 breast cancer cells with values of IC50 of 1.369 μg mL-1 in the dark and 0.9034 μg mL-1 after light irradiation. Besides, cell morphological studies confirmed the morphological changes with AO/EB dual staining, reactive oxygen species (ROS) staining, mitochondria staining, and Hoechst staining on MDA-MB-231 cancer cells by fluorescence microscopy. Complex 1 was found to be a potent antiproliferative agent against MDA-MB-231 cells, and it can induce mitochondrial-mediated and caspase-dependent apoptosis with activation of downregulated caspases. The biotoxicity assay of complex 1 on the development of Artemia nauplii was evaluated at an IC50 value of 200 μg mL-1 and with excellent biocompatibility.
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Affiliation(s)
- Murugan Sethupathi
- Department
of Industrial Chemistry, Alagappa University, Karaikudi 630003, Tamil Nadu, India
| | | | - Nallathambi Sengottuvelan
- Department
of Industrial Chemistry, Alagappa University, Karaikudi 630003, Tamil Nadu, India
- Department
of Chemistry (DDE), Alagappa University, Karaikudi 630003, Tamil Nadu, India
| | - Kumar Ponnuchamy
- Food
Chemistry and Molecular Cancer Biology Laboratory, Department of Animal
Health and Management, Alagappa University, Karaikudi 630003, Tamil Nadu, India
| | - Franc Perdih
- Faculty
of Chemistry and Chemical Technology, University
of Ljubljana, 1000 Ljubljana, Slovenia
| | - Arun Alagarsamy
- Department
of Microbiology, Alagappa University, Karaikudi 630003, Tamil Nadu, India
| | - Muthusamy Karthikeyan
- Pharmacogenomics
and Computational Biology Laboratory, Department of Bioinformatics, Alagappa University, Karaikudi 630004, Tamil
Nadu, India
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36
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Mossine VV, Kelley SP, Mawhinney TP. Crystal structure of (E)-N′-(1-(2-hydroxy-4-methoxyphenyl)ethylidene) isonicotinohydrazide, C15H15N3O3. Z KRIST-NEW CRYST ST 2022. [DOI: 10.1515/ncrs-2021-0435] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
C15H15N3O3, triclinic, P
1
‾
$\overline{1}$
(no. 2), a = 9.0752(2) Å, b = 9.1969(2) Å, c = 9.9519(2) Å, α = 112.7059(8)°, β = 92.4309(8)°, γ = 115.2776(7)°, V = 671.16(3) Å3, Z = 2, R
gt
(F) = 0.0347, wR
ref
(F
2) = 0.1113, T = 100 K.
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Affiliation(s)
- Valeri V. Mossine
- Department of Biochemistry , University of Missouri , Columbia , MO 65211 , USA
| | - Steven P. Kelley
- Department of Chemistry , University of Missouri , Columbia , MO 65211 , USA
| | - Thomas P. Mawhinney
- Department of Biochemistry , University of Missouri , Columbia , MO 65211 , USA
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37
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Tan SL, Lo KM, Tan YS, Tiekink ERT. Structural systematics in the isomorphous binary co-crystal solvates comprising 2,2'-dithiodibenzoic acid, 4-halobenzoic acid and dimethylformamide (1:1:1), for halide = chloride, bromide and iodide. CrystEngComm 2022. [DOI: 10.1039/d2ce00094f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The 1:1:1 binary co-crystal solvates formulated as 2,2'-dithiodibenzoic acid (DTBA), 4-halobenzoic acid (4-XBA) and dimethylformamide (DMF) for X = Cl (1), Br (2) and I (3) are isomorphous and the...
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38
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Dąbrowska AM, Adamczyk-Woźniak A, Madura ID. Effect of substituents in novel bioactive tavaborole derivatives on the intermolecular interaction hierarchy. CrystEngComm 2022. [DOI: 10.1039/d2ce00279e] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Tavaborole, a molecule based on the benzoxaborole scaffold, is an effective antifungal drug marketed under the Kerydin® trademark.
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Affiliation(s)
- Anna M. Dąbrowska
- Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664 Warsaw, Poland
| | | | - Izabela D. Madura
- Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664 Warsaw, Poland
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39
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Azzali A, d'Agostino S, Capacci M, Spinelli F, Ventura B, Grepioni F. Assembling photoactive materials from polycyclic aromatic hydrocarbons (PAHs): room temperature phosphorescence and excimer-emission in co-crystals with 1,4-diiodotetrafluorobenzene. CrystEngComm 2022. [DOI: 10.1039/d2ce00720g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Co-crystallization of PAHs with a polyhalogenated co-former afforded three novel co-crystals, which display remarkable features such as mechanochemical interconversion, photoreactivity, excimer fluorescence, and RTP phosphorescence in the solid state.
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Affiliation(s)
- Alessandra Azzali
- Dipartimento di Chimica “Giacomo Ciamician”, Università di Bologna, Via F. Selmi, 2, 40126 Bologna, Italy
| | - Simone d'Agostino
- Dipartimento di Chimica “Giacomo Ciamician”, Università di Bologna, Via F. Selmi, 2, 40126 Bologna, Italy
| | - Mattia Capacci
- Dipartimento di Chimica “Giacomo Ciamician”, Università di Bologna, Via F. Selmi, 2, 40126 Bologna, Italy
| | - Floriana Spinelli
- Dipartimento di Chimica “Giacomo Ciamician”, Università di Bologna, Via F. Selmi, 2, 40126 Bologna, Italy
| | - Barbara Ventura
- Istituto ISOF-CNR, Via P. Gobetti, 101, 40219 Bologna, Italy
| | - Fabrizia Grepioni
- Dipartimento di Chimica “Giacomo Ciamician”, Università di Bologna, Via F. Selmi, 2, 40126 Bologna, Italy
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40
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Ildiz GO, Tabanez AM, Nunes A, Roque JP, Justino LL, Ramos ML, Fausto R. Molecular structure, spectroscopy and photochemistry of alprazolam. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2021.131295] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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41
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Sandeep, Sudheendranath A, Venugopalan P, Kumar A, Thomas SP. Conformational preferences in a series of α-hydroxy ketone derivatives: interplay of conformational energies and lattice cohesive energies. CrystEngComm 2022. [DOI: 10.1039/d2ce00700b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A detailed structural analysis of a series of α-hydroxy ketone derivatives in terms of lattice energies and conformational energies reveals the competing factors of inter- and intramolecular interactions that direct conformational preferences.
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Affiliation(s)
- Sandeep
- Department of Chemistry, Panjab University, Chandigarh-160014, India
- Department of Applied Sciences, University Institute of Engineering and Technology, Panjab University, Chandigarh-160014, India
| | - Athul Sudheendranath
- Department of Chemistry, Indian Institute of Technology, Hauz Khas, New Delhi 110016, Delhi, India
| | | | - Anil Kumar
- Department of Applied Sciences, University Institute of Engineering and Technology, Panjab University, Chandigarh-160014, India
| | - Sajesh P. Thomas
- Department of Chemistry, Indian Institute of Technology, Hauz Khas, New Delhi 110016, Delhi, India
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42
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Mirocki A, Lopresti M, Palin L, Conterosito E, Sikorski A, Milanesio M. Exploring the molecular landscape of multicomponent crystals formed by naproxen drug and acridines. CrystEngComm 2022. [DOI: 10.1039/d2ce00890d] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Three cocrystals were obtained by naproxen and acridines, optimizing the yield to more than 99% with LAG. The two structures by solution show a host-guest structure, while that by LAG a layered one, with no interconversion between parent structures.
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Affiliation(s)
- Artur Mirocki
- Faculty of Chemistry of the University of Gdansk, ul. Wita Stwosza 63, 80-308 Gdansk, Poland
| | - Mattia Lopresti
- Università del Piemonte Orientale, Dipartimento di Scienze e Innovazione Tecnologica, Viale T. Michel 11, 15121 Alessandria, Italy
| | - Luca Palin
- Università del Piemonte Orientale, Dipartimento di Scienze e Innovazione Tecnologica, Viale T. Michel 11, 15121 Alessandria, Italy
- Nova Res s.r.l., Via D. Bello 3, 28100 Novara, Italy
| | - Eleonora Conterosito
- Università del Piemonte Orientale, Dipartimento di Scienze e Innovazione Tecnologica, Viale T. Michel 11, 15121 Alessandria, Italy
| | - Artur Sikorski
- Faculty of Chemistry of the University of Gdansk, ul. Wita Stwosza 63, 80-308 Gdansk, Poland
| | - Marco Milanesio
- Università del Piemonte Orientale, Dipartimento di Scienze e Innovazione Tecnologica, Viale T. Michel 11, 15121 Alessandria, Italy
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43
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Torubaev YV, Skabitsky IV, Anisimov AA, Ananyev IV. Long-range supramolecular synthon polymorphism: a case study of two new polymorphic cocrystals of Ph 2Te 2–1,4-C 6F 4I 2. CrystEngComm 2022. [DOI: 10.1039/d1ce01487k] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Two new polymorphic forms of Ph2Te2–1,4-C6F4I2 cocrystals feature an unusual packing of Ph2Te2 molecules, which is typical for native Ph2Se2 but not Ph2Te2. This suggests the existence the yet unknown, Ph2Se2-like polymorph of Ph2Te2.
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Affiliation(s)
- Yury V. Torubaev
- N.S. Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, GSP-1, Leninsky prospect, 31, 119991 Moscow, Russia
| | - Ivan V. Skabitsky
- N.S. Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, GSP-1, Leninsky prospect, 31, 119991 Moscow, Russia
| | - Aleksei A. Anisimov
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 119991, Moscow, Russia
| | - Ivan V. Ananyev
- N.S. Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, GSP-1, Leninsky prospect, 31, 119991 Moscow, Russia
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44
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Yin Q, Alexandrov EV, Si DH, Huang QQ, Fang ZB, Zhang Y, Zhang AA, Qin WK, Li YL, Liu TF, Proserpio DM. Metallization-Prompted Robust Porphyrin-Based Hydrogen-Bonded Organic Frameworks for Photocatalytic CO 2 Reduction. Angew Chem Int Ed Engl 2021; 61:e202115854. [PMID: 34877789 DOI: 10.1002/anie.202115854] [Citation(s) in RCA: 49] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2021] [Indexed: 11/06/2022]
Abstract
Under topological guidance, the self-assembly process based on a tetratopic porphyrin synthon results in a hydrogen-bonded organic framework (HOF) with the predicted square layers topology (sql) but unsatisfied stability. Strikingly, simply introducing a transition metal in the porphyrin center does not change the network topology but drastically causes noticeable change on noncovalent interaction, orbital overlap, and molecular geometry, therefore ultimately giving rise to a series of metalloporphyrinic HOFs with high surface area, and excellent stability (intact after being soaked in boiling water, concentrated HCl, and heated to 270 °C). On integrating both photosensitizers and catalytic sites into robust backbones, this series of HOFs can effectively catalyze the photoreduction of CO2 to CO, and their catalytic performances greatly depend on the chelated metal species in the porphyrin centers. This work enriches the library of stable functional HOFs and expands their applications in photocatalytic CO2 reduction.
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Affiliation(s)
- Qi Yin
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, 350002, Fujian, Fuzhou, P. R. China
| | - Eugeny V Alexandrov
- Samara Center for Theoretical Material Science (SCTMS), Samara State Technical University, Samara, 443100, Russia.,Institute of Experimental Medicine and Biotechnology, Samara State Medical University, 443099, Samara, Russia
| | - Duan-Hui Si
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, 350002, Fujian, Fuzhou, P. R. China
| | - Qian-Qian Huang
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, 350002, Fujian, Fuzhou, P. R. China
| | - Zhi-Bin Fang
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, 350002, Fujian, Fuzhou, P. R. China
| | - Yuan Zhang
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, 350002, Fujian, Fuzhou, P. R. China
| | - An-An Zhang
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, 350002, Fujian, Fuzhou, P. R. China
| | - Wei-Kang Qin
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, 350002, Fujian, Fuzhou, P. R. China.,University of Chinese Academy of Sciences, No.19 (A) Yuquan Road, Shijingshan District, Beijing, 100049, P. R. China
| | - Yu-Lin Li
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, 350002, Fujian, Fuzhou, P. R. China.,University of Chinese Academy of Sciences, No.19 (A) Yuquan Road, Shijingshan District, Beijing, 100049, P. R. China
| | - Tian-Fu Liu
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, 350002, Fujian, Fuzhou, P. R. China.,University of Chinese Academy of Sciences, No.19 (A) Yuquan Road, Shijingshan District, Beijing, 100049, P. R. China
| | - Davide M Proserpio
- Università degli studi di Milano, Dipartimento di Chimica, 20133, Milano, Italy.,Samara Center for Theoretical Material Science (SCTMS), Samara State Technical University, Samara, 443100, Russia
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45
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Stanton SA, Du JJ, Lai F, Stanton G, Hawkins BA, Ong JA, Groundwater PW, Platts JA, Hibbs DE. Understanding Hygroscopicity of Theophylline via a Novel Cocrystal Polymorph: A Charge Density Study. J Phys Chem A 2021; 125:9736-9756. [PMID: 34731566 DOI: 10.1021/acs.jpca.0c09536] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The charge density distribution in a novel cocrystal (1) complex of 1,3-dimethylxanthine (theophylline) and propanedioic acid (malonic acid) has been determined. The molecules crystallize in the triclinic, centrosymmetric space group P1̅, with four independent molecules (Z = 4) in the asymmetric unit (two molecules each of theophylline and malonic acid). Theophylline has a notably high hygroscopic nature, and numerous cocrystals have shown a significant improvement in stability to humidity. A charge density study of the novel polymorph has identified interesting theoretical results correlating the stability enhancement of theophylline via cocrystallization. Topological analysis of the electron density highlighted key differences (up to 17.8) in Laplacian (∇2ρ) between the experimental (EXP) and single-point (SP) models, mainly around intermolecular-bonded carbonyls. Further investigation via molecular electrostatic potential maps reaffirmed that the charge redistribution enhanced intramolecular hydrogen bonding, predominantly for N(2') and N(2) (61.2 and 61.8 kJ mol-1, respectively). An overall weaker lattice energy of the triclinic form (-126.1 kJ mol-1) compared to that of the monoclinic form (-133.8 kJ mol-1) suggests a lower energy threshold to overcome to initiate dissociation. Future work via physical testing of the novel cocrystal in both dissolution and solubility will further solidify the correlation between theoretical and experimental results.
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Affiliation(s)
- Stephen A Stanton
- Sydney School of Pharmacy, Faculty of Medicine and Health, The University of Sydney, Sydney, NSW 2006, Australia
| | - Jonathan J Du
- Sydney School of Pharmacy, Faculty of Medicine and Health, The University of Sydney, Sydney, NSW 2006, Australia
| | - Felcia Lai
- Sydney School of Pharmacy, Faculty of Medicine and Health, The University of Sydney, Sydney, NSW 2006, Australia
| | - Gyte Stanton
- Sydney School of Pharmacy, Faculty of Medicine and Health, The University of Sydney, Sydney, NSW 2006, Australia
| | - Bryson A Hawkins
- Sydney School of Pharmacy, Faculty of Medicine and Health, The University of Sydney, Sydney, NSW 2006, Australia
| | - Jennifer A Ong
- Sydney School of Pharmacy, Faculty of Medicine and Health, The University of Sydney, Sydney, NSW 2006, Australia
| | - Paul W Groundwater
- Sydney School of Pharmacy, Faculty of Medicine and Health, The University of Sydney, Sydney, NSW 2006, Australia
| | - James A Platts
- School of Chemistry, Cardiff University, Cardiff CF10 3AT, U.K
| | - David E Hibbs
- Sydney School of Pharmacy, Faculty of Medicine and Health, The University of Sydney, Sydney, NSW 2006, Australia
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46
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Varga B, Szemesi P, Nagy P, Herbay R, Holczbauer T, Fogassy E, Keglevich G, Bagi P. Enantioseparation of P-Stereogenic Secondary Phosphine Oxides and Their Stereospecific Transformation to Various Tertiary Phosphine Oxides and a Thiophosphinate. J Org Chem 2021; 86:14493-14507. [PMID: 34633814 PMCID: PMC8576816 DOI: 10.1021/acs.joc.1c01364] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
![]()
Secondary phosphine
oxides incorporating various aryl and alkyl
groups were synthesized in racemic form, and these products formed
the library reported in this study. TADDOL derivatives were used to
obtain the optical resolution of these P-stereogenic
secondary phosphine oxides. The developed resolution method showed
a good scope under the optimized reaction conditions, as 9 out of
14 derivatives could be prepared with an enantiomeric excess (ee)
≥ 79% and 5 of these derivatives were practically enantiopure
>P(O)H compounds (ee ≥ 98%). The scalability of this resolution
method was also demonstrated. Noncovalent interactions responsible
for the formation of diasteromeric complexes were elucidated by single-crystal
XRD measurements. (S)-(2-Methylphenyl)phenylphosphine
oxide was transformed to a variety of P-stereogenic
tertiary phosphine oxides and a thiophosphinate in stereospecific
Michaelis–Becker, Hirao, or Pudovik reactions.
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Affiliation(s)
- Bence Varga
- Department of Organic Chemistry and Technology, Budapest University of Technology and Economics, Műegyetem rkp. 3, H-1111 Budapest, Hungary
| | - Péter Szemesi
- Department of Organic Chemistry and Technology, Budapest University of Technology and Economics, Műegyetem rkp. 3, H-1111 Budapest, Hungary.,Gedeon Richter Plc., H-1475 Budapest, Hungary
| | - Petra Nagy
- Department of Organic Chemistry and Technology, Budapest University of Technology and Economics, Műegyetem rkp. 3, H-1111 Budapest, Hungary
| | - Réka Herbay
- Department of Organic Chemistry and Technology, Budapest University of Technology and Economics, Műegyetem rkp. 3, H-1111 Budapest, Hungary
| | - Tamás Holczbauer
- Center for Structural Science, Chemical Crystallography Research Laboratory and Institute for Organic Chemistry, Research Centre for Natural Sciences, Magyar tudósok körútja 2, H-1519 Budapest, Hungary
| | - Elemér Fogassy
- Department of Organic Chemistry and Technology, Budapest University of Technology and Economics, Műegyetem rkp. 3, H-1111 Budapest, Hungary
| | - György Keglevich
- Department of Organic Chemistry and Technology, Budapest University of Technology and Economics, Műegyetem rkp. 3, H-1111 Budapest, Hungary
| | - Péter Bagi
- Department of Organic Chemistry and Technology, Budapest University of Technology and Economics, Műegyetem rkp. 3, H-1111 Budapest, Hungary
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47
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Gale JD, LeBlanc LM, Spackman PR, Silvestri A, Raiteri P. A Universal Force Field for Materials, Periodic GFN-FF: Implementation and Examination. J Chem Theory Comput 2021; 17:7827-7849. [PMID: 34735764 DOI: 10.1021/acs.jctc.1c00832] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
In this study, the adaption of the recently published molecular GFN-FF for periodic boundary conditions (pGFN-FF) is described through the use of neighbor lists combined with appropriate charge sums to handle any dimensionality from 1D polymers to 2D surfaces and 3D solids. Numerical integration over the Brillouin zone for the calculation of π bond orders of periodic fragments is also included. Aside from adapting the GFN-FF method to handle periodicity, improvements to the method are proposed in regard to the calculation of topological charges through the inclusion of a screened Coulomb term that leads to more physical charges and avoids a number of pathological cases. Short-range damping of three-body dispersion is also included to avoid collapse of some structures. Analytic second derivatives are also formulated with respect to both Cartesian and strain variables, including prescreening of terms to accelerate the dispersion/coordination number contribution to the Hessian. The modified pGFN-FF scheme is then applied to a wide range of different materials in order to examine how well this universal model performs.
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Affiliation(s)
- Julian D Gale
- Curtin Institute for Computation, School of Molecular and Life Sciences, Curtin University, PO Box U1987, Perth, Western Australia 6845, Australia
| | - Luc M LeBlanc
- Curtin Institute for Computation, School of Molecular and Life Sciences, Curtin University, PO Box U1987, Perth, Western Australia 6845, Australia
| | - Peter R Spackman
- Curtin Institute for Computation, School of Molecular and Life Sciences, Curtin University, PO Box U1987, Perth, Western Australia 6845, Australia
| | - Alessandro Silvestri
- Curtin Institute for Computation, School of Molecular and Life Sciences, Curtin University, PO Box U1987, Perth, Western Australia 6845, Australia
| | - Paolo Raiteri
- Curtin Institute for Computation, School of Molecular and Life Sciences, Curtin University, PO Box U1987, Perth, Western Australia 6845, Australia
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48
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Velluti F, Acevedo A, Serra G, Ellena J, Borthagaray G, Facchin G, Scarone L, Alvarez N, Torre MH. Novel bisthiazole ligand and its copper(II) complex with unusual seven membered ring: Synthesis, characterization, experimental and theoretical study of the effect of ligand flexibility, and antimicrobial activity. Polyhedron 2021. [DOI: 10.1016/j.poly.2021.115490] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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49
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Akutagawa T, Takeda T, Hoshino N. Dynamics of proton, ion, molecule, and crystal lattice in functional molecular assemblies. Chem Commun (Camb) 2021; 57:8378-8401. [PMID: 34369489 DOI: 10.1039/d1cc01586a] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Dynamic molecular processes, such as short- or long-range proton (H+) and ion (M+) motions, and molecular rotations in electrical conducting and magnetic molecular assemblies enable the fabrication of electron-H+ (or M+) coupling systems, while crystal lattice dynamics and molecular conformation changes in hydrogen-bonded molecular crystals have been utilised in external stimuli responsive reversible gas-induced gate opening and molecular adsorption/desorption behavior. These dynamics of the polar structural units are responsible for the dielectric measurements. The H+ dynamics are formed from ferroelectrics and H+ conductors, while the dynamic M+ motions of Li+ and Na+ involve ionic conductors and coupling to the conduction electrons. In n-type organic semiconductors, the crystal lattices are modulated by replacing M+ cations, with cations such as Li+, Na+, K+, Rb+, and Cs+. The use of polar rotator or inversion structures such as alkyl amides, m-fluoroanilinium cations, and bowl-shaped trithiasumanene π-cores enables the formation of ferroelectric molecular assemblies. The host-guest molecular systems of ESIPT fluorescent chromic molecules showed interesting molecular sensing properties using various bases, where the dynamic transformation of the crystal lattice and the molecular conformational change were coupled to each other.
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Affiliation(s)
- Tomoyuki Akutagawa
- Institute of Multidisciplinary Research for Advanced Materials (IMRAM), Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai 980-8577, Japan.
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50
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Zaoui Y, Ramli Y, Tan SL, Tiekink ER, Chemlal L, Mague JT, Taoufik J, Faouzi MEA, Ansar M. Synthesis, structural characterisation and theoretical studies of a novel pyridazine derivative: Investigations of anti-inflammatory activity and inhibition of α-glucosidase. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2021.130177] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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