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Bektas N, Aydogan A. A poly-pseudorotaxane constructed by threading pillar[5]arene onto an ion-pair recognition-based calix[4]pyrrole supramolecular polymer. Org Biomol Chem 2023; 21:1862-1867. [PMID: 36799237 DOI: 10.1039/d2ob02268k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/12/2023]
Abstract
The ion-pair recognition ability of calix[4]pyrrole was utilized to form a multicomponent monomeric assembly and a linear supramolecular polymer via concurrent anion and bis-cation complexation. The inherent dynamic interactions of these assemblies were further used to construct pseudorotaxanes in monomeric and supramolecular polymer forms with pillar[5]arene.
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Affiliation(s)
- Necla Bektas
- Department of Chemistry, Istanbul Technical University, Maslak 34469, Istanbul, Türkiye.
| | - Abdullah Aydogan
- Department of Chemistry, Istanbul Technical University, Maslak 34469, Istanbul, Türkiye.
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McConnell AJ, Docker A, Beer PD. From Heteroditopic to Multitopic Receptors for Ion-Pair Recognition: Advances in Receptor Design and Applications. Chempluschem 2021; 85:1824-1841. [PMID: 32833334 DOI: 10.1002/cplu.202000484] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Revised: 07/28/2020] [Indexed: 12/30/2022]
Abstract
Ion-pair recognition has emerged from cation and anion recognition and become a diverse and active field in its own right. The last decade has seen significant advances in receptor design in terms of the types of binding motifs, understanding of cooperativity and increase in complexity from heteroditopic to multitopic receptors. As a result, attention has turned to applying this knowledge to the rational design of ion-pair receptors for applications in salt solubilisation and extraction, membrane transport and sensing. This Review highlights recent progress and developments in the design and applications of heteroditopic and multitopic receptors for ion-pair recognition.
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Affiliation(s)
- Anna J McConnell
- Otto Diels Institute of Organic Chemistry, Christian-Albrechts-Universität zu Kiel, Otto-Hahn-Platz 4, Kiel, 24098, Germany
| | - Andrew Docker
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, Mansfield Road, Oxford, OX1 3TA, United Kingdom
| | - Paul D Beer
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, Mansfield Road, Oxford, OX1 3TA, United Kingdom
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Consiglio G, Oliveri IP, Cacciola S, Maccarrone G, Failla S, Di Bella S. Dinuclear zinc(ii) salen-type Schiff-base complexes as molecular tweezers. Dalton Trans 2020; 49:5121-5133. [PMID: 32219249 DOI: 10.1039/d0dt00494d] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
In this contribution, the synthesis and the unusual aggregation/deaggregation properties in solution of two dinuclear ZnII Schiff-base complexes of tetradentate Schiff-base units, having non-conjugated spacers between each molecular unit, are reported in comparison to the mononuclear model complex. Through detailed 1H NMR, DOSY NMR, optical absorption, fluorescence emission, and multivariate analysis of optical absorption data, emerge some interesting findings. In solution of non-coordinating solvents, these Lewis acidic species are characterized as monomers stabilized by formation of intramolecular aggregates, having distinct spectroscopic properties in comparison to intermolecular aggregates derived from the mononuclear model analogue. Instead, in coordinating solvents they exhibit a typical behaviour, with formation of stable adducts showing a strong fluorescence. Deaggregation studies using pyridine as reference Lewis base allowed establishing a larger thermodynamic stability of these intramolecular aggregates, in comparison to intermolecular aggregates, even larger than that of aggregates of conjugated multinuclear complexes. The combined analysis of spectroscopic data upon deaggregation with ditopic Lewis bases unambiguously demonstrated the formation of stable 1 : 1 adducts, with higher binding constants in comparison to those related to monotopic species. Therefore, the present Lewis acidic, dinuclear complexes behave as molecular tweezers of ditopic guests having a strong Lewis basicity.
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Affiliation(s)
- Giuseppe Consiglio
- Dipartimento di Scienze Chimiche, Università di Catania, I-95125 Catania, Italy.
| | - Ivan Pietro Oliveri
- Dipartimento di Scienze Chimiche, Università di Catania, I-95125 Catania, Italy.
| | - Salvatore Cacciola
- Dipartimento di Scienze Chimiche, Università di Catania, I-95125 Catania, Italy.
| | - Giuseppe Maccarrone
- Dipartimento di Scienze Chimiche, Università di Catania, I-95125 Catania, Italy.
| | - Salvatore Failla
- Dipartimento di Scienze Chimiche, Università di Catania, I-95125 Catania, Italy.
| | - Santo Di Bella
- Dipartimento di Scienze Chimiche, Università di Catania, I-95125 Catania, Italy.
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A Simple and Efficient Mechanochemical Route for the Synthesis of Salophen Ligands and of the Corresponding Zn, Ni, and Pd Complexes. Molecules 2019; 24:molecules24122314. [PMID: 31234486 PMCID: PMC6631197 DOI: 10.3390/molecules24122314] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2019] [Revised: 06/19/2019] [Accepted: 06/20/2019] [Indexed: 11/17/2022] Open
Abstract
A number of salophen ligands and their Zn, Ni, and Pd complexes were synthesized by an efficient one-pot mechanosynthesis protocol. The reaction products were characterized by means of complementary solid-state techniques, i.e., powder X-ray diffraction, single-crystal X-ray diffraction, and solid-state NMR spectroscopy. Four new crystal structures of metal salophen complexes as DMSO solvates are here reported. The described simple and relatively fast (about 1 h for all derivatives) procedure is a good alternative to classical methods performed in organic solvents.
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Supramolecular Detection of a Nerve Agent Simulant by Fluorescent Zn-Salen Oligomer Receptors. Molecules 2019; 24:molecules24112160. [PMID: 31181723 PMCID: PMC6600340 DOI: 10.3390/molecules24112160] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2019] [Revised: 05/27/2019] [Accepted: 06/07/2019] [Indexed: 11/16/2022] Open
Abstract
We report on new Zn-Salen oligomer receptors able to recognize a nerve agent simulant, namely dimethyl methylphosphonate (DMMP), by a supramolecular approach. In particular, three Zn-Salen oligomers (Zn-Oligo-A, -B, and -C), differing by the length distribution, were obtained and characterized by NMR, Gel Permeation Chromatography (GPC), UV-Vis, and fluorescence spectroscopy. Furthermore, we investigated their recognition properties towards DMMP by using fluorescence measurements. We found that the recognition ability depends on the length of the oligomeric chain, and the Zn-Oligo-C shows a binding constant value higher than those already reported in literature for the DMMP detection.
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Abstract
In this article, we explore the capacity of formed Schiff base complexes to trap metal atoms or ions, using their aromatic ends. The intrinsic geometry of each complex defines the process of substitution. Two cases were studied; one involving a trans Schiff base complex and the other considering how a salen ligand, with nickel systems traps chromium. We also assessed the nature of the new bonds and the frontier molecular orbitals. Graphical abstract Two salen nickel compounds are joint by a Cr(0) atom forming an organometallic interaction.
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Supramolecular Aggregation of a New Substituted Bis(salicylaldiminato)zinc(II) Schiff-Base Complex Derived from trans-1,2-Diaminocyclohexane. INORGANICS 2018. [DOI: 10.3390/inorganics6010008] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
In this contribution is reported the synthesis, characterization, and aggregation properties in solution of a novel Zn(II) complex, (R)-2, derived from the enantiopure chiral trans-1,2-diaminocyclohexane and a substituted salicylaldehyde. Detailed 1H NMR, DOSY NMR, optical absorption, and circular dichroism spectroscopic studies and chemical evidence allowed to investigate the nature of aggregate species in solution. The high solubility of (R)-2 in solution of the non-coordinating chloroform solvent leads to formation of various aggregates, some of them consisting of large oligomers estimated to contain up to 27 monomeric units. The chiral trans-stereochemistry of the bridging diamine favors a different aggregation mode in these complexes, both in the oligomers and dimers, involving a tetrahedral coordination geometry around the metal center. Overall data suggest the formation of helical oligomers, (ZnL)n, in freshly prepared chloroform solutions which, by standing or heating, evolve towards a more thermodynamically stable, dinuclear double-helicate Zn2L2 dimer.
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Oliveri IP, Forte G, Consiglio G, Failla S, Di Bella S. Aggregates of Defined Stereochemical Scaffolds: A Study in Solution of a Zinc(II) Schiff Base Complex Derived from the Enantiopure trans-1,2-Cyclopentanediamine. Inorg Chem 2017; 56:14206-14213. [DOI: 10.1021/acs.inorgchem.7b02341] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Ivan Pietro Oliveri
- Dipartimento di Scienze Chimiche and ‡Dipartimento di Scienze del Farmaco, Università di Catania, I-95125 Catania, Italy
| | - Giuseppe Forte
- Dipartimento di Scienze Chimiche and ‡Dipartimento di Scienze del Farmaco, Università di Catania, I-95125 Catania, Italy
| | - Giuseppe Consiglio
- Dipartimento di Scienze Chimiche and ‡Dipartimento di Scienze del Farmaco, Università di Catania, I-95125 Catania, Italy
| | - Salvatore Failla
- Dipartimento di Scienze Chimiche and ‡Dipartimento di Scienze del Farmaco, Università di Catania, I-95125 Catania, Italy
| | - Santo Di Bella
- Dipartimento di Scienze Chimiche and ‡Dipartimento di Scienze del Farmaco, Università di Catania, I-95125 Catania, Italy
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Oliveri IP, Di Bella S. Lewis basicity of relevant monoanions in a non-protogenic organic solvent using a zinc(ii) Schiff-base complex as a reference Lewis acid. Dalton Trans 2017; 46:11608-11614. [PMID: 28825067 DOI: 10.1039/c7dt02821k] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
The Lewis basicity of relevant anions is reported for the first time and compared with that of neutral bases.
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Affiliation(s)
| | - Santo Di Bella
- Dipartimento di Scienze Chimiche
- Università di Catania
- I-95125 Catania
- Italy
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10
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Leoni L, Puttreddy R, Jurček O, Mele A, Giannicchi I, Mihan FY, Rissanen K, Dalla Cort A. Solution and Solid-State Studies on the Halide Binding Affinity of Perfluorophenyl-Armed Uranyl-Salophen Receptors Enhanced by Anion-π Interactions. Chemistry 2016; 22:18714-18717. [DOI: 10.1002/chem.201604313] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2016] [Indexed: 12/13/2022]
Affiliation(s)
- Luca Leoni
- Dipartimento di Chimica and IMC-CNR; Università di Roma La Sapienza; Piazzale Aldo Moro 5 00185 Roma Italy
| | - Rakesh Puttreddy
- University of Jyväskylä; Department of Chemistry, Nanoscience Center; P.O. Box 35 40014 University of Jyväskylä Finland
| | - Ondřej Jurček
- University of Jyväskylä; Department of Chemistry, Nanoscience Center; P.O. Box 35 40014 University of Jyväskylä Finland
| | - Andrea Mele
- Dipartimento di Chimica and IMC-CNR; Università di Roma La Sapienza; Piazzale Aldo Moro 5 00185 Roma Italy
| | - Ilaria Giannicchi
- Dipartimento di Chimica and IMC-CNR; Università di Roma La Sapienza; Piazzale Aldo Moro 5 00185 Roma Italy
| | - Francesco Yafteh Mihan
- Dipartimento di Chimica and IMC-CNR; Università di Roma La Sapienza; Piazzale Aldo Moro 5 00185 Roma Italy
| | - Kari Rissanen
- University of Jyväskylä; Department of Chemistry, Nanoscience Center; P.O. Box 35 40014 University of Jyväskylä Finland
| | - Antonella Dalla Cort
- Dipartimento di Chimica and IMC-CNR; Università di Roma La Sapienza; Piazzale Aldo Moro 5 00185 Roma Italy
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Sabaté F, Giannicchi I, Acón L, Dalla Cort A, Rodríguez L. Anion selectivity of Zn–salophen receptors: Influence of ligand substituents. Inorganica Chim Acta 2015. [DOI: 10.1016/j.ica.2015.04.032] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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12
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Forte G, D’Urso A, Ballistreri FP, Toscano RM, Tomaselli GA, Trusso Sfrazzetto G, Pappalardo A. Enantiomeric recognition of α-amino acid derivatives by chiral uranyl–salen receptors. Tetrahedron Lett 2015. [DOI: 10.1016/j.tetlet.2015.04.092] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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13
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Bodo E, Ciavardini A, Dalla Cort A, Giannicchi I, Yafteh Mihan F, Fornarini S, Vasile S, Scuderi D, Piccirillo S. Anion Recognition by Uranyl-Salophen Derivatives as Probed by Infrared Multiple Photon Dissociation Spectroscopy and Ab Initio Modeling. Chemistry 2014; 20:11783-92. [DOI: 10.1002/chem.201402788] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2014] [Revised: 06/02/2014] [Indexed: 11/11/2022]
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Hawkins CA, Bustillos CG, Copping R, Scott BL, May I, Nilsson M. Challenging conventional f-element separation chemistry – reversing uranyl(vi)/lanthanide(iii) solvent extraction selectivity. Chem Commun (Camb) 2014; 50:8670-3. [DOI: 10.1039/c4cc03031a] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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15
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Bedini E, Forte G, De Castro C, Parrilli M, Dalla Cort A. A Route to Oligosaccharide-Appended Salicylaldehydes: Useful Building Blocks for the Synthesis of Metal–Salophen Complexes. J Org Chem 2013; 78:7962-9. [DOI: 10.1021/jo401148f] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Emiliano Bedini
- Dipartimento di Scienze Chimiche, Università di Napoli “Federico II”, Complesso Universitario
Monte Sant’Angelo, Via Cintia, 4
− 80126 Napoli, Italy
| | - Gianpiero Forte
- Dipartimento di Chimica and
IMC-CNR, Università La Sapienza,
Piazzale Aldo Moro 5, 00185 Roma, Italy
| | - Cristina De Castro
- Dipartimento di Scienze Chimiche, Università di Napoli “Federico II”, Complesso Universitario
Monte Sant’Angelo, Via Cintia, 4
− 80126 Napoli, Italy
| | - Michelangelo Parrilli
- Dipartimento di Scienze Chimiche, Università di Napoli “Federico II”, Complesso Universitario
Monte Sant’Angelo, Via Cintia, 4
− 80126 Napoli, Italy
| | - Antonella Dalla Cort
- Dipartimento di Chimica and
IMC-CNR, Università La Sapienza,
Piazzale Aldo Moro 5, 00185 Roma, Italy
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