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Liu CZ, Zhang C, Li ZY, Chen J, Wang T, Zhang XK, Yan M, Zhai B. Multiple non-covalent-interaction-directed supramolecular double helices: the orthogonality of hydrogen, halogen and chalcogen bonding. Chem Commun (Camb) 2024; 60:6063-6066. [PMID: 38780308 DOI: 10.1039/d4cc01472c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/25/2024]
Abstract
In this study, a benzoselenadiazole- and pyridine-bifunctionalized hydrogen-bonded arylamide foldamer was synthesized. A co-crystallization experiment with 1,4-diiodotetrafluorobenzene showed that a new type of supramolecular double helices, which were induced by three orthogonal interactions, namely, three-center hydrogen bonding (O⋯H⋯O), I⋯N halogen bonding and Se⋯N chalcogen bonding, have been constructed in the solid state. This work presents a novel instance of multiple non-covalent interactions that work together to construct supramolecular architectures.
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Affiliation(s)
- Chuan-Zhi Liu
- Engineering Research Centre for Optoelectronic Functional Materials of Henan Province, College of Chemistry and Chemical Engineering, Shangqiu Normal University, Shangqiu, Henan 476000, China.
| | - Chi Zhang
- Engineering Research Centre for Optoelectronic Functional Materials of Henan Province, College of Chemistry and Chemical Engineering, Shangqiu Normal University, Shangqiu, Henan 476000, China.
| | - Zhong-Yi Li
- Engineering Research Centre for Optoelectronic Functional Materials of Henan Province, College of Chemistry and Chemical Engineering, Shangqiu Normal University, Shangqiu, Henan 476000, China.
| | - Jiale Chen
- Engineering Research Centre for Optoelectronic Functional Materials of Henan Province, College of Chemistry and Chemical Engineering, Shangqiu Normal University, Shangqiu, Henan 476000, China.
| | - Tonglu Wang
- Engineering Research Centre for Optoelectronic Functional Materials of Henan Province, College of Chemistry and Chemical Engineering, Shangqiu Normal University, Shangqiu, Henan 476000, China.
| | - Xiang-Kun Zhang
- Engineering Research Centre for Optoelectronic Functional Materials of Henan Province, College of Chemistry and Chemical Engineering, Shangqiu Normal University, Shangqiu, Henan 476000, China.
| | - Meng Yan
- School of Chemistry and Chemical Engineering, Henan University of Technology, Zhengzhou, 450001, China
| | - Bin Zhai
- Engineering Research Centre for Optoelectronic Functional Materials of Henan Province, College of Chemistry and Chemical Engineering, Shangqiu Normal University, Shangqiu, Henan 476000, China.
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2
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Gitlina AY, Petrovskii S, Luginin M, Melnikov A, Rychagova E, Ketkov S, Grachova E. X/Y platinum(II) complexes: some features of supramolecular assembly via halogen bonding. Dalton Trans 2023; 52:16005-16017. [PMID: 37850309 DOI: 10.1039/d3dt02970k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2023]
Abstract
Four series of new luminescent cyclometalated complexes [Pt(C^N)(IPy)Y] (HC^N = 2-phenylpyridine (Hppy), 2-(1-benzofuran-3-yl)pyridine (Hbfpy), methyl-2-phenylquinoline-4-carboxylate (Hmpqc), 2-(1-benzothiophen-3-yl)pyridine (Hbtpy), IPy = 4-iodopyridine, and Y = Cl, Br, I) have been investigated as X/Y 'building blocks' for the construction of a supramolecular network utilizing the I atom in IPy as a halogen bond (XB) donor (the X atom). The σ-hole of the X atom was found to provide non-covalent X⋯Y, X⋯Pt and X⋯π (π system of the metalated chelate ring) interactions for the complexes in the crystal state. NBO analysis confirms donation of the platinum electron density to iodine upon the X⋯Pt interaction. The nature of the X counterpart in XB depends on the nature of the Y atom and the cyclometalating ligand of the Pt(II) complex. DFT calculations show that the HOMO of [Pt(C^N)(IPy)Y] in the S0 state is delocalized over Pt, Y and a C-coordinating fragment of C^N, while the LUMO in most complexes is formed by the Py orbitals of IPy. However, the α-HOMO in the lowest triplet state of [Pt(C^N)(IPy)Y] contains no contribution of the IPy wavefunctions. All Pt(II) complexes exhibited triplet luminescence in solution and in the solid state (Φ up to 0.129), which is determined by the nature of the C^N ligand. The emission profile is independent of the nature of the ligand Y, while the quantum yield decreases from Cl to I. Accordingly, on the basis of DFT calculation, this emission is interpreted as a C^N intraligand charge transfer predominantly. The XB formation did not show an effect on the luminescence of the complexes in the solid phase, however grinding of crystals results in an increase of brightness.
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Affiliation(s)
- Anastasia Yu Gitlina
- Institut des Sciences et Ingénierie Chimiques, École Polytechnique Fédérale de Lausanne (EPFL), 1015 Lausanne, Switzerland
| | - Stanislav Petrovskii
- Institute of Chemistry, St Petersburg University, Universitetskii pr. 26, 198504 St Petersburg, Russia.
| | - Maksim Luginin
- Institute of Chemistry, St Petersburg University, Universitetskii pr. 26, 198504 St Petersburg, Russia.
| | - Alexey Melnikov
- Centre for Nano- and Biotechnologies, Peter the Great St Petersburg Polytechnic University, 195251 St Petersburg, Russia
| | - Elena Rychagova
- G.A. Razuvaev Institute of Organometallic Chemistry, the Russian Academy of Sciences, 603950 Nizhny Novgorod, Russia.
| | - Sergey Ketkov
- G.A. Razuvaev Institute of Organometallic Chemistry, the Russian Academy of Sciences, 603950 Nizhny Novgorod, Russia.
| | - Elena Grachova
- Institute of Chemistry, St Petersburg University, Universitetskii pr. 26, 198504 St Petersburg, Russia.
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3
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Daolio A, Pizzi A, Nayak SK, Dominikowska J, Terraneo G, Metrangolo P, Resnati G. Fluoride Anions: Unexploited but Effective Halogen Bond Acceptors. Chem Asian J 2023; 18:e202300520. [PMID: 37471203 DOI: 10.1002/asia.202300520] [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: 06/12/2023] [Revised: 07/03/2023] [Indexed: 07/22/2023]
Abstract
Due to their high electron density, fluoride anions can be considered the most effective halogen bond (HaB) acceptors among the halides. However, under common experimental conditions, F- uncommonly acts as HaB acceptor, expectedly as it is present in hydrated form. Herein we report that under specific crystallization conditions a hydrogen bond-free F- functioning as donor of electron density can be obtained, with the formed HaBs constituting the driving force of the observed crystal packings. Computations confirm the strength of these HaBs compared to analogous interactions involving other halides.
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Affiliation(s)
- Andrea Daolio
- NFMLab, Department of Chemistry, Materials, and Chemical Engineering "Giulio Natta", Politecnico di Milano via, L. Mancinelli 7, I-20131, Milano, Italy
| | - Andrea Pizzi
- NFMLab, Department of Chemistry, Materials, and Chemical Engineering "Giulio Natta", Politecnico di Milano via, L. Mancinelli 7, I-20131, Milano, Italy
| | - Susanta K Nayak
- Department of Chemistry, Visvesvaraya National Institute of Technology, S. Ambazari Rd., Nagpur, 440 010, Maharashtra, India
| | - Justyna Dominikowska
- Department of Physical Chemistry, University of Lodz, Pomorska Łódź, 163/165, 90-236, Lodz, Poland
| | - Giancarlo Terraneo
- NFMLab, Department of Chemistry, Materials, and Chemical Engineering "Giulio Natta", Politecnico di Milano via, L. Mancinelli 7, I-20131, Milano, Italy
| | - Pierangelo Metrangolo
- NFMLab, Department of Chemistry, Materials, and Chemical Engineering "Giulio Natta", Politecnico di Milano via, L. Mancinelli 7, I-20131, Milano, Italy
| | - Giuseppe Resnati
- NFMLab, Department of Chemistry, Materials, and Chemical Engineering "Giulio Natta", Politecnico di Milano via, L. Mancinelli 7, I-20131, Milano, Italy
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4
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Thangavadivale VG, Tendera L, Bertermann R, Radius U, Beweries T, Perutz RN. Solution and solid-state studies of hydrogen and halogen bonding with N-heterocyclic carbene supported nickel(II) fluoride complexes. Faraday Discuss 2023; 244:62-76. [PMID: 37097153 DOI: 10.1039/d2fd00171c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Nickel fluoride complexes of the type [Ni(F)(L)2(ArF)] (L = phosphine, ArF = fluorinated arene) are well-known to form strong halogen and hydrogen bonds in solution and in the solid state. A comprehensive study of such non-covalent interactions using bis(carbene) complexes as acceptors and suitable halogen and hydrogen bond donors is presented. In solution, the complex [Ni(F)(iPr2Im)2(C6F5)] forms halogen and hydrogen bonds with iodopentafluorobenzene and indole, respectively, which have formation constants (K300) an order of magnitude greater than those of structurally related phosphine supported nickel fluorides. Co-crystallisation of this complex and its backbone-methylated analogue [Ni(F)(iPr2Me2Im)2(C6F5)] with 1,4-diiodotetrafluorobenzene produces halogen bonding adducts which were characterised by X-ray analysis and 19F MAS solid state NMR analysis. Differences in the chemical shifts between the nickel fluoride and its halogen bonding adduct are well in line with data that were obtained from titration studies in solution.
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Affiliation(s)
| | - Lukas Tendera
- Institut für Anorganische Chemie, Julius-Maximilians-Universität, Am Hubland, 97074 Würzburg, Germany.
| | - Rüdiger Bertermann
- Institut für Anorganische Chemie, Julius-Maximilians-Universität, Am Hubland, 97074 Würzburg, Germany.
| | - Udo Radius
- Institut für Anorganische Chemie, Julius-Maximilians-Universität, Am Hubland, 97074 Würzburg, Germany.
| | - Torsten Beweries
- Leibniz-Institut für Katalyse, Albert-Einstein-Str. 29a, 18059 Rostock, Germany.
| | - Robin N Perutz
- Department of Chemistry, University of York, Heslington, York, YO10 5DD, UK.
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5
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Grineva OV. Comparison of Intermolecular Halogen...Halogen Distances in Organic and Organometallic Crystals. Int J Mol Sci 2023; 24:11911. [PMID: 37569289 PMCID: PMC10419058 DOI: 10.3390/ijms241511911] [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: 06/01/2023] [Revised: 07/15/2023] [Accepted: 07/21/2023] [Indexed: 08/13/2023] Open
Abstract
Statistical analysis of halogen...halogen intermolecular distances was performed for three sets of homomolecular crystals under normal conditions: C-Hal1...Hal2-C distances in crystals consisting of: (i) organic compounds (set Org); (ii) organometallic compounds (set Orgmet); and (iii) distances M1-Hal1...Hal2-M2 (set MHal) (in all cases Hal1 = Hal2, and in MHal M1 = M2, M is any metal). When analyzing C-Hal...Hal-C distances, a new method for estimating the values of van der Waals radii is proposed, based on the use of two subsets of distances: (i) the shortest distances from each substance less than a threshold; and (ii) all C-Hal...Hal-C distances less than the same threshold. As initial approximations for these thresholds for different Hal, the Ragg values previously introduced in investigations with the participation of the author were used (Ragg values make it possible to perform a statistical assessment of the presence of halogen aggregates in crystals). The following values are recommended in this work to be used as universal values for crystals of organic and organometallic compounds: RF = 1.57, RCl = 1.90, RBr = 1.99, and RI = 2.15 Å. They are in excellent agreement with the results of some other works but significantly (by 0.10-0.17 Å) greater than the commonly used values. For the Orgmet set, slightly lower values for RI (2.11-2.09 Å) were obtained, but number of the C-I...I-C distances available for analysis was significantly smaller than in the other subgroups, which may be the reason for the discrepancy with value for the Org set (2.15 Å). Statistical analysis of the M-Hal...Hal-M distances was performed for the first time. A Hal-aggregation coefficient for M-Hal bonds is proposed, which allows one to estimate the propensity of M-Hal groups with certain M and Hal to participate in Hal-aggregates formed by M-Hal...Hal-M contacts. In particular, it was found that, for the Hg-Hal groups (Hal = Cl, Br, I), there is a high probability that the crystals have Hg-Hal...Hal-Hg distances with length ≤ Ragg.
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Affiliation(s)
- Olga V Grineva
- Chemistry Department, Moscow M. V. Lomonosov State University, 119991 Moscow, Russia
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6
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Logallo A, Hevia E. Applying Na/Co(II) bimetallic partnerships to promote multiple Co-H exchanges in polyfluoroarenes. Chem Commun (Camb) 2023; 59:5383-5386. [PMID: 37060131 PMCID: PMC10152514 DOI: 10.1039/d3cc01216f] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/16/2023]
Abstract
Heterobimetallic base NaCo(HMDS)3 [HMDS = N(SiMe3)2] enables regioselective di-cobaltation of activated polyfluoroarenes under mild reaction conditions. For 1,3,5-C6H2X3 (X= Cl, F), NaCo(HMDS)3 in excess at 80 °C impressively induces the collective cleavage of five bonds (two C-H and three C-X) of the substrates via a cascade activation process that cannot be replicated by LiCo(HMDS)3 or KCo(HMDS)3.
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Affiliation(s)
- Alessandra Logallo
- Departement für Chemie, Biochemie und Pharmazie, Universität Bern, Bern, Switzerland.
| | - Eva Hevia
- Departement für Chemie, Biochemie und Pharmazie, Universität Bern, Bern, Switzerland.
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7
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Castro AC, Cascella M, Perutz RN, Raynaud C, Eisenstein O. Solid-State 19F NMR Chemical Shift in Square-Planar Nickel-Fluoride Complexes Linked by Halogen Bonds. Inorg Chem 2023; 62:4835-4846. [PMID: 36920236 PMCID: PMC10052355 DOI: 10.1021/acs.inorgchem.2c04063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/16/2023]
Abstract
The halogen bond (XB) is a highly directional class of noncovalent interactions widely explored by experimental and computational studies. However, the NMR signature of the XB has attracted limited attention. The prediction and analysis of the solid-state NMR (SSNMR) chemical shift tensor provide useful strategies to better understand XB interactions. In this work, we employ a computational protocol for modeling and analyzing the 19F SSNMR chemical shifts previously measured in a family of square-planar trans NiII-L2-iodoaryl-fluoride (L = PEt3) complexes capable of forming self-complementary networks held by a NiF···I(C) halogen bond [Thangavadivale, V.; Chem. Sci. 2018, 9, 3767-3781]. To understand how the 19F NMR resonances of the nickel-bonded fluoride are affected by the XB, we investigate the origin of the shielding in trans-[NiF(2,3,5,6-C6F4I)(PEt3)2], trans-[NiF(2,3,4,5-C6F4I)(PEt3)2], and trans-[NiF(C6F5)(PEt3)2] in the solid state, where a XB is present in the two former systems but not in the last. We perform the 19F NMR chemical shift calculations both in periodic and molecular models. The results show that the crystal packing has little influence on the NMR signatures of the XB, and the NMR can be modeled successfully with a pair of molecules interacting via the XB. Thus, the observed difference in chemical shift between solid-state and solution NMR can be essentially attributed to the XB interaction. The very high shielding of the fluoride and its driving contributor, the most shielded component of the chemical shift tensor, are well reproduced at the 2c-ZORA level. Analysis of the factors controlling the shielding shows how the highest occupied Ni/F orbitals shield the fluoride in the directions perpendicular to the Ni-F bond and specifically perpendicular to the coordination plane. This shielding arises from the magnetic coupling of the Ni(3d)/F(2p lone pair) orbitals with the vacant σNi-F* orbital, thereby rationalizing the very highly upfield (shielded) resonance of the component (δ33) along this direction. We show that these features are characteristic of square-planar nickel-fluoride complexes. The deshielding of the fluoride in the halogen-bonded systems is attributed to an increase in the energy gap between the occupied and vacant orbitals that are mostly responsible for the paramagnetic terms, notably along the most shielded direction.
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Affiliation(s)
- Abril C Castro
- Hylleraas Centre for Quantum Molecular Sciences, Department of Chemistry, University of Oslo, 0315 Oslo, Norway
| | - Michele Cascella
- Hylleraas Centre for Quantum Molecular Sciences, Department of Chemistry, University of Oslo, 0315 Oslo, Norway
| | - Robin N Perutz
- Department of Chemistry, University of York, Heslington, YO10 5DD York, United Kingdom
| | | | - Odile Eisenstein
- Hylleraas Centre for Quantum Molecular Sciences, Department of Chemistry, University of Oslo, 0315 Oslo, Norway.,ICGM, Université Montpellier, CNRS, ENSCM, 34090 Montpellier, France
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8
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Sivchik V, Kochetov A, Eskelinen T, Kisel KS, Solomatina AI, Grachova EV, Tunik SP, Hirva P, Koshevoy IO. Modulation of Metallophilic and π-π Interactions in Platinum Cyclometalated Luminophores with Halogen Bonding. Chemistry 2021; 27:1787-1794. [PMID: 32970903 DOI: 10.1002/chem.202003952] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2020] [Revised: 09/23/2020] [Indexed: 12/11/2022]
Abstract
Luminescent cyclometalated complexes [M(C^N^N)CN] (M=Pt, Pd; HC^N^N=pyridinyl- (M=Pt 1, Pd 5), benzyltriazolyl- (M=Pt 2), indazolyl- (M=Pt 3, Pd 6), pyrazolyl-phenylpyridine (M=Pt 4)) decorated with cyanide ligand, have been explored as nucleophilic building blocks for the construction of halogen-bonded (XB) adducts using IC6 F5 as an XB donor. The negative electrostatic potential of the CN group afforded CN⋅⋅⋅I noncovalent interactions for platinum complexes 1-3; the energies of XB contacts are comparable to those of metallophilic bonding according to QTAIM analysis. Embedding the chromophore units into XB adducts 1-3⋅⋅⋅IC6 F5 has little effect on the charge distribution, but strongly affects Pt⋅⋅⋅Pt bonding and π-stacking, which lead to excited states of MMLCT (metal-metal-to-ligand charge transfer) origin. The energies of these states and the photoemissive properties of the crystalline materials are primarily determined by the degree of aggregation of the luminophores via metal-metal interactions. The adduct formation depends on the nature of the metal and the structure of the metalated ligand, the variation of which can yield dynamic XB-supported systems, exemplified by thermally regulated transition 3↔3⋅⋅⋅IC6 F5 .
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Affiliation(s)
- Vasily Sivchik
- Department of Chemistry, University of Eastern Finland, 80101, Joensuu, Finland
| | - Aleksandr Kochetov
- Department of Chemistry, University of Eastern Finland, 80101, Joensuu, Finland
| | - Toni Eskelinen
- Department of Chemistry, University of Eastern Finland, 80101, Joensuu, Finland
| | - Kristina S Kisel
- Institute of Chemistry, St. Petersburg State University, Universitetskiy pr. 26, Petergof, St. Petersburg, Russia
| | - Anastasia I Solomatina
- Institute of Chemistry, St. Petersburg State University, Universitetskiy pr. 26, Petergof, St. Petersburg, Russia
| | - Elena V Grachova
- Institute of Chemistry, St. Petersburg State University, Universitetskiy pr. 26, Petergof, St. Petersburg, Russia
| | - Sergey P Tunik
- Institute of Chemistry, St. Petersburg State University, Universitetskiy pr. 26, Petergof, St. Petersburg, Russia
| | - Pipsa Hirva
- Department of Chemistry, University of Eastern Finland, 80101, Joensuu, Finland
| | - Igor O Koshevoy
- Department of Chemistry, University of Eastern Finland, 80101, Joensuu, Finland
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9
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Bonfant G, Melegari M, Balestri D, Mezzadri F, Marzaroli V, Bassanetti I, Marchiò L. Supramolecular Assemblies in Silver Complexes: Phase Transitions and the Role of the Halogen Bond. Inorg Chem 2020; 59:4140-4149. [PMID: 32141298 DOI: 10.1021/acs.inorgchem.0c00256] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Weak interactions (hydrogen bonds, halogen bonds, CH···π and π-π stacking) can play a significant role in the formation of supramolecular assemblies with desired structural features. In this contribution, we report a systematic investigation on how a halogen bond (XB) can modulate the structural arrangement of silver supramolecular complexes. The complexes are composed of X-phenyl(bispyrazolyl)methane (X = Br, I) and I-alkynophenyl(bispyrazolyl)methane ligands functionalized in meta (L3Br, L3I) and para (L4Br, L4I, L4CCI) positions on a phenyl ring with the purpose of providing different directionalities of the X function with respect to the N,N coordination system. The obtained [Ag(L)2]+ moieties show remarkable geometric similarities, and the L4Br, L4I, and L4CCI ligands exhibit the most conserved types of supramolecular arrangement that are sustained by XB. The increased σ-hole in L4CCI with respect to L4I leads to an occurrence of short (and strong) XB interactions with the anions. [Ag(L4I)2]PF6 and [Ag(L4I)2]CF3SO3 are characterized by the presence of three different phases, and the single-crystal evolution from phase-1 (a honeycomb structure with large 1D cavities) to phase-3 (solventless) occurs by a stepwise decrease in the crystallization solvent content, which promotes an increase in XB interactions in the lattice. The present paper aims to provide useful tools for the selection of appropriate components for the use of coordination compounds to build supramolecular systems based on the halogen bond.
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Affiliation(s)
- Giulia Bonfant
- Dipartimento di Scienze Chimiche, della Vita e della Sostenibilità Ambientale (Chemistry Unit), Università di Parma, 43124 Parma, Italy
| | - Matteo Melegari
- Dipartimento di Scienze Chimiche, della Vita e della Sostenibilità Ambientale (Chemistry Unit), Università di Parma, 43124 Parma, Italy
| | - Davide Balestri
- Dipartimento di Scienze Chimiche, della Vita e della Sostenibilità Ambientale (Chemistry Unit), Università di Parma, 43124 Parma, Italy
| | - Francesco Mezzadri
- Dipartimento di Scienze Chimiche, della Vita e della Sostenibilità Ambientale (Chemistry Unit), Università di Parma, 43124 Parma, Italy
| | - Vittoria Marzaroli
- Dipartimento di Scienze Chimiche, della Vita e della Sostenibilità Ambientale (Chemistry Unit), Università di Parma, 43124 Parma, Italy
| | - Irene Bassanetti
- Dipartimento di Scienze Chimiche, della Vita e della Sostenibilità Ambientale (Chemistry Unit), Università di Parma, 43124 Parma, Italy
| | - Luciano Marchiò
- Dipartimento di Scienze Chimiche, della Vita e della Sostenibilità Ambientale (Chemistry Unit), Università di Parma, 43124 Parma, Italy
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10
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Joksch M, Agarwala H, Ferro M, Michalik D, Spannenberg A, Beweries T. A Comparative Study on the Thermodynamics of Halogen Bonding of Group 10 Pincer Fluoride Complexes. Chemistry 2020; 26:3571-3577. [PMID: 31846108 PMCID: PMC7154528 DOI: 10.1002/chem.201904863] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2019] [Indexed: 12/13/2022]
Abstract
The thermodynamics of halogen bonding of a series of isostructural Group 10 metal pincer fluoride complexes of the type [(3,5‐R2‐tBuPOCOPtBu)MF] (3,5‐R2‐tBuPOCOPtBu=κ3‐C6HR2‐2,6‐(OPtBu2)2 with R=H, tBu, COOMe; M=Ni, Pd, Pt) and iodopentafluorobenzene was investigated. Based on NMR experiments at different temperatures, all complexes 1‐tBu (R=tBu, M=Ni), 2‐H (R=H, M=Pd), 2‐tBu (R=tBu, M=Pd), 2‐COOMe (R=COOMe, M=Pd) and 3‐tBu (R=tBu, M=Pt) form strong halogen bonds with Pd complexes showing significantly stronger binding to iodopentafluorobenzene. Structural and computational analysis of a model adduct of complex 2‐tBu with 1,4‐diiodotetrafluorobenzene as well as of structures of iodopentafluorobenzene in toluene solution shows that formation of a type I contact occurs.
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Affiliation(s)
- Markus Joksch
- Leibniz-Institut für Katalyse e.V. an der Universität RostockAlbert-Einstein-Strasse 29a18059RostockGermany
| | - Hemlata Agarwala
- Leibniz-Institut für Katalyse e.V. an der Universität RostockAlbert-Einstein-Strasse 29a18059RostockGermany
- Department of Synthetic Molecular ChemistryÅngström Laboratory, Box 523Uppsala UniversityLägerhyddsvägen 175120UppsalaSweden
| | - Monica Ferro
- Leibniz-Institut für Katalyse e.V. an der Universität RostockAlbert-Einstein-Strasse 29a18059RostockGermany
- Politecnico di MilanoDipartimento di ChimicaMateriali e Ing. Chimica “G. Natta”Via L. Mancinelli 720131MilanoItaly
| | - Dirk Michalik
- Leibniz-Institut für Katalyse e.V. an der Universität RostockAlbert-Einstein-Strasse 29a18059RostockGermany
- Institut für ChemieUniversität RostockAlbert-Einstein-Strasse 3a18059RostockGermany
| | - Anke Spannenberg
- Leibniz-Institut für Katalyse e.V. an der Universität RostockAlbert-Einstein-Strasse 29a18059RostockGermany
| | - Torsten Beweries
- Leibniz-Institut für Katalyse e.V. an der Universität RostockAlbert-Einstein-Strasse 29a18059RostockGermany
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11
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Dortéz S, Fernández-Palacio F, Damián J, Gaiteiro C, Ramos J, Gómez-Sal P, Mosquera MEG. Halogen bonding (HaB) in E–I⋯X–M systems: influence of the halogen donor on the HaB nature. CrystEngComm 2020. [DOI: 10.1039/c9ce01449g] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
A study on how the covalent character of the halogen bond can be modulated by using different halogen donors.
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Affiliation(s)
- Silvia Dortéz
- Departamento de Química Orgánica y Química Inorgánica
- Instituto de Investigación en Química “Andrés M. del Río” (IQAR) Universidad de Alcalá
- 28871-Alcala de Henares
- Spain
| | - Francisco Fernández-Palacio
- Departamento de Química Orgánica y Química Inorgánica
- Instituto de Investigación en Química “Andrés M. del Río” (IQAR) Universidad de Alcalá
- 28871-Alcala de Henares
- Spain
| | - Jesús Damián
- Departamento de Química Orgánica y Química Inorgánica
- Instituto de Investigación en Química “Andrés M. del Río” (IQAR) Universidad de Alcalá
- 28871-Alcala de Henares
- Spain
| | - Carlos Gaiteiro
- Departamento de Química Orgánica y Química Inorgánica
- Instituto de Investigación en Química “Andrés M. del Río” (IQAR) Universidad de Alcalá
- 28871-Alcala de Henares
- Spain
| | - Javier Ramos
- BIOPHYM
- Department of Macromolecular Physics
- Instituto de Estructura de la Materia
- IEM-CSIC
- Spain
| | - Pilar Gómez-Sal
- Departamento de Química Orgánica y Química Inorgánica
- Instituto de Investigación en Química “Andrés M. del Río” (IQAR) Universidad de Alcalá
- 28871-Alcala de Henares
- Spain
| | - Marta E. G. Mosquera
- Departamento de Química Orgánica y Química Inorgánica
- Instituto de Investigación en Química “Andrés M. del Río” (IQAR) Universidad de Alcalá
- 28871-Alcala de Henares
- Spain
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12
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Balmohammadi Y, Khavasi HR, Naghavi SS. Existence of untypical halogen-involving interactions in crystal packings: a statistical and first-principles study. CrystEngComm 2020. [DOI: 10.1039/c9ce01885a] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
There is a common perception by the scientific community that a halogen-involving interaction forms when the distance between the donor atom and the acceptor atom is less than the sum of their van der Waals (vdW) radii.
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Affiliation(s)
- Yaser Balmohammadi
- Department of Inorganic Chemistry and Catalysis
- Shahid Beheshti University
- Tehran 1983963113
- Iran
| | - Hamid Reza Khavasi
- Department of Inorganic Chemistry and Catalysis
- Shahid Beheshti University
- Tehran 1983963113
- Iran
| | - S. Shahab Naghavi
- Department of Physical and Computational Chemistry
- Shahid Beheshti University
- 1983963113 Tehran
- Iran
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13
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Oliveira VP, Marcial BL, Machado FBC, Kraka E. Metal-Halogen Bonding Seen through the Eyes of Vibrational Spectroscopy. MATERIALS 2019; 13:ma13010055. [PMID: 31861904 PMCID: PMC6982077 DOI: 10.3390/ma13010055] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/24/2019] [Revised: 12/09/2019] [Accepted: 12/15/2019] [Indexed: 11/17/2022]
Abstract
Incorporation of a metal center into halogen-bonded materials can efficiently fine-tune the strength of the halogen bonds and introduce new electronic functionalities. The metal atom can adopt two possible roles: serving as halogen acceptor or polarizing the halogen donor and acceptor groups. We investigated both scenarios for 23 metal–halogen dimers trans-M(Y2)(NC5H4X-3)2 with M = Pd(II), Pt(II); Y = F, Cl, Br; X = Cl, Br, I; and NC5H4X-3 = 3-halopyridine. As a new tool for the quantitative assessment of metal–halogen bonding, we introduced our local vibrational mode analysis, complemented by energy and electron density analyses and electrostatic potential studies at the density functional theory (DFT) and coupled-cluster single, double, and perturbative triple excitations (CCSD(T)) levels of theory. We could for the first time quantify the various attractive contacts and their contribution to the dimer stability and clarify the special role of halogen bonding in these systems. The largest contribution to the stability of the dimers is either due to halogen bonding or nonspecific interactions. Hydrogen bonding plays only a secondary role. The metal can only act as halogen acceptor when the monomer adopts a (quasi-)planar geometry. The best strategy to accomplish this is to substitute the halo-pyridine ring with a halo-diazole ring, which considerably strengthens halogen bonding. Our findings based on the local mode analysis provide a solid platform for fine-tuning of existing and for design of new metal–halogen-bonded materials.
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Affiliation(s)
- Vytor P. Oliveira
- Departamento de Química, Instituto Tecnológico de Aeronáutica (ITA), São José dos Campos, 12228-900 São Paulo, Brazil; (V.P.O.); (F.B.C.M.)
| | - Bruna L. Marcial
- Núcleo de Química, Instituto Federal Goiano (IF Goiano), Campus Morrinhos, 75650-000 Goiás, Brazil;
| | - Francisco B. C. Machado
- Departamento de Química, Instituto Tecnológico de Aeronáutica (ITA), São José dos Campos, 12228-900 São Paulo, Brazil; (V.P.O.); (F.B.C.M.)
| | - Elfi Kraka
- Department of Chemistry, Southern Methodist University, 3215 Daniel Avenue, Dallas, TX 75275-0314, USA
- Correspondence: ; Tel.: +1-214-768-2611
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14
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Kashina MV, Kinzhalov MA, Smirnov AS, Ivanov DM, Novikov AS, Kukushkin VY. Dihalomethanes as Bent Bifunctional XB/XB-Donating Building Blocks for Construction of Metal-involving Halogen Bonded Hexagons. Chem Asian J 2019; 14:3915-3920. [PMID: 31550070 DOI: 10.1002/asia.201901127] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2019] [Indexed: 12/20/2022]
Abstract
The dihalomethanes CH2 X2 (X=Cl, Br, I) were co-crystallized with the isocyanide complexes trans-[MXM 2 (CNC6 H4 -4-XC )2 ] (M=Pd, Pt; XM =Br, I; XC =F, Cl, Br) to give an extended series comprising 15 X-ray structures of isostructural adducts featuring 1D metal-involving hexagon-like arrays. In these structures, CH2 X2 behave as bent bifunctional XB/XB-donating building blocks, whereas trans-[MXM 2 (CNC6 H4 -4-XC )2 ] act as a linear XB/XB acceptors. Results of DFT calculations indicate that all XCH2 -X⋅⋅⋅XM -M contacts are typical noncovalent interactions with estimated strengths in the range of 1.3-3.2 kcal mol-1 . A CCDC search reveals that hexagon-like arrays are rather common but previously overlooked structural motives for adducts of trans-bis(halide) complexes and halomethanes.
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Affiliation(s)
- Maria V Kashina
- Saint Petersburg State University, Universitetskaya Nab. 7/9, 199034, Saint Petersburg, Russian Federation
| | - Mikhail A Kinzhalov
- Saint Petersburg State University, Universitetskaya Nab. 7/9, 199034, Saint Petersburg, Russian Federation
| | - Andrey S Smirnov
- Saint Petersburg State University, Universitetskaya Nab. 7/9, 199034, Saint Petersburg, Russian Federation
| | - Daniil M Ivanov
- Saint Petersburg State University, Universitetskaya Nab. 7/9, 199034, Saint Petersburg, Russian Federation
| | - Alexander S Novikov
- Saint Petersburg State University, Universitetskaya Nab. 7/9, 199034, Saint Petersburg, Russian Federation
| | - Vadim Yu Kukushkin
- Saint Petersburg State University, Universitetskaya Nab. 7/9, 199034, Saint Petersburg, Russian Federation
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15
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Kryukova MA, Ivanov DM, Kinzhalov MA, Novikov AS, Smirnov AS, Bokach NA, Yu Kukushkin V. Four-Center Nodes: Supramolecular Synthons Based on Cyclic Halogen Bonding. Chemistry 2019; 25:13671-13675. [PMID: 31232494 DOI: 10.1002/chem.201902264] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2019] [Revised: 06/21/2019] [Indexed: 12/30/2022]
Abstract
The isocyanide trans-[PdBr2 (CNC6 H4 -4-X')2 ] (X'=Br, I) and nitrile trans-[PtX2 (NCC6 H4 -4-X')2 ] (X/X'=Cl/Cl, Cl/Br, Br/Cl, Br/Br) complexes exhibit similar structural motif in the solid state, which is determined by hitherto unreported four-center nodes formed by cyclic halogen bonding. Each node is built up by four Type II C-X'⋅⋅⋅X-M halogen-bonding contacts and include one Type I M-X⋅⋅⋅X-M interaction, thus giving the rhombic-like structure. These nodes serve as supramolecular synthons to form 2D layers or double chains of molecules linked by a halogen bond. Results of DFT calculations indicate that all contacts within the nodes are typical noncovalent interactions with the estimated strengths in the range 0.6-2.9 kcal mol-1 .
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Affiliation(s)
- Mariya A Kryukova
- Institute of Chemistry, Saint Petersburg State University, Universitetskaya Nab. 7/9, 199034, Saint Petersburg, Russian Federation
| | - Daniil M Ivanov
- Institute of Chemistry, Saint Petersburg State University, Universitetskaya Nab. 7/9, 199034, Saint Petersburg, Russian Federation
| | - Mikhail A Kinzhalov
- Institute of Chemistry, Saint Petersburg State University, Universitetskaya Nab. 7/9, 199034, Saint Petersburg, Russian Federation
| | - Alexander S Novikov
- Institute of Chemistry, Saint Petersburg State University, Universitetskaya Nab. 7/9, 199034, Saint Petersburg, Russian Federation
| | - Andrey S Smirnov
- Institute of Chemistry, Saint Petersburg State University, Universitetskaya Nab. 7/9, 199034, Saint Petersburg, Russian Federation
| | - Nadezhda A Bokach
- Institute of Chemistry, Saint Petersburg State University, Universitetskaya Nab. 7/9, 199034, Saint Petersburg, Russian Federation
| | - Vadim Yu Kukushkin
- Institute of Chemistry, Saint Petersburg State University, Universitetskaya Nab. 7/9, 199034, Saint Petersburg, Russian Federation
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16
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Tay WS, Lu Y, Yang XY, Li Y, Pullarkat SA, Leung PH. Catalytic and Mechanistic Developments of the Nickel(II) Pincer Complex-Catalyzed Hydroarsination Reaction. Chemistry 2019; 25:11308-11317. [PMID: 31293004 DOI: 10.1002/chem.201902138] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2019] [Indexed: 01/08/2023]
Abstract
Synthetic challenges have significantly slowed the development of the catalytic asymmetric hydroarsination reaction despite it being a highly attractive C-As bond formation methodology. In addition, there is a poor understanding of the main reaction steps in such reactions which limit further development in the field. Herein, key intermediates of the hydroarsination reaction catalyzed by a PCP NiII -Cl pincer complex are presented upon investigating the reaction with DFT calculations, conductivity measurements, NMR spectroscopy, and catalytic screening. The novel Ni-Cl-As interaction proposed was then contrasted against known NiII -catalyzed hydrophosphination reactions to highlight dissimilarities between them even though P and As share a close group relationship. Lastly, the asymmetric hydroarsination of nitroolefins was further developed to furnish a library of chiral organoarsines in up to 99 % yield and 80 % ee under mild conditions (-20 °C to RT) between 5 to 210 mins.
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Affiliation(s)
- Wee Shan Tay
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, 637371, Singapore, Singapore
| | - Yunpeng Lu
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, 637371, Singapore, Singapore
| | - Xiang-Yuan Yang
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, 637371, Singapore, Singapore
| | - Yongxin Li
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, 637371, Singapore, Singapore
| | - Sumod A Pullarkat
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, 637371, Singapore, Singapore
| | - Pak-Hing Leung
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, 637371, Singapore, Singapore
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17
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Lu J, Scheiner S. Effects of Halogen, Chalcogen, Pnicogen, and Tetrel Bonds on IR and NMR Spectra. Molecules 2019; 24:E2822. [PMID: 31382402 PMCID: PMC6696224 DOI: 10.3390/molecules24152822] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2019] [Revised: 07/25/2019] [Accepted: 07/31/2019] [Indexed: 11/22/2022] Open
Abstract
Complexes were formed pairing FX, FHY, FH2Z, and FH3T (X = Cl, Br, I; Y = S, Se, Te; Z = P, As, Sb; T = Si, Ge, Sn) with NH3 in order to form an A⋯N noncovalent bond, where A refers to the central atom. Geometries, energetics, atomic charges, and spectroscopic characteristics of these complexes were evaluated via DFT calculations. In all cases, the A-F bond, which is located opposite the base and is responsible for the σ-hole on the A atom, elongates and its stretching frequency undergoes a shift to the red. This shift varies from 42 to 175 cm-1 and is largest for the halogen bonds, followed by chalcogen, tetrel, and then pnicogen. The shift also decreases as the central A atom is enlarged. The NMR chemical shielding of the A atom is increased while that of the F and electron donor N atom are lowered. Unlike the IR frequency shifts, it is the third-row A atoms that undergo the largest change in NMR shielding. The change in shielding of A is highly variable, ranging from negligible for FSnH3 all the way up to 1675 ppm for FBr, while those of the F atom lie in the 55-422 ppm range. Although smaller in magnitude, the changes in the N shielding are still easily detectable, between 7 and 27 ppm.
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Affiliation(s)
- Jia Lu
- Department of Chemistry and Biochemistry, Utah State University, Logan, UT 84322-0300, USA
| | - Steve Scheiner
- Department of Chemistry and Biochemistry, Utah State University, Logan, UT 84322-0300, USA.
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18
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Pike SJ, Hunter CA, Brammer L, Perutz RN. Benchmarking of Halogen Bond Strength in Solution with Nickel Fluorides: Bromine versus Iodine and Perfluoroaryl versus Perfluoroalkyl Donors. Chemistry 2019; 25:9237-9241. [PMID: 30985028 PMCID: PMC6771525 DOI: 10.1002/chem.201900924] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2019] [Indexed: 12/18/2022]
Abstract
The energetics of halogen bond formation in solution have been investigated for a series of nickel fluoride halogen bond acceptors; trans-[NiF(2-C5 NF4 )(PEt3 )2 ] (A1), trans-[NiF{2-C5 NF3 (4-H)}(PEt3 )2 ] (A2), trans-[NiF{2-C5 NF3 (4-NMe2 )}(PEt3 )2 ] (A3) and trans-[NiF{2-C5 NF2 H(4-CF3 )}(PCy3 )2 ] (A4) with neutral organic halogen bond donors, iodopentafluorobenzene (D1), 1-iodononafluorobutane (D2) and bromopentafluorobenzene (D3), in order to establish the significance of changes from perfluoroaryl to perfluoroalkyl donors and from iodine to bromine donors. 19 F NMR titration experiments have been employed to obtain the association constants, enthalpy, and entropy for the halogen bond formed between these donor-acceptor partners in protiotoluene. For A2-A4, association constants of the halogen bonds formed with iodoperfluoroalkane (D2) are consistently larger than those obtained for analogous complexes with the iodoperfluoroarene (D1). For complexes formed with A2-A4, the strength of the halogen bond is significantly lowered upon modification of the halogen donor atom from I (in D1) to Br (in D3) (for D1: 5≤K285 ≤12 m-1 , for D3: 1.0≤K193 ≤1.6 m-1 ). The presence of the electron donating NMe2 substituent on the pyridyl ring of acceptor A3 led to an increase in -ΔH, and the association constants of the halogen bond complexes formed with D1-D3, compared to those formed by A1, A2 and A4 with the same donors.
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Affiliation(s)
- Sarah J. Pike
- Department of ChemistryUniversity of York, HeslingtonYorkYO10 5DDUK
| | | | - Lee Brammer
- Department of ChemistryUniversity of Sheffield, Brook HillSheffieldS3 7HFUK
| | - Robin N. Perutz
- Department of ChemistryUniversity of York, HeslingtonYorkYO10 5DDUK
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19
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Joksch M, Spannenberg A, Beweries T. Intermolecular hydrogen bonding in isostructural pincer complexes [OH-(
t-BuPOCOP
t-Bu) MCl] ( M = Pd and Pt). Acta Crystallogr E Crystallogr Commun 2019; 75:1011-1014. [PMID: 31392015 PMCID: PMC6659334 DOI: 10.1107/s2056989019008491] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2019] [Accepted: 06/14/2019] [Indexed: 11/10/2022]
Abstract
In the crystal structure of the isostructural title compounds, namely {2,6-bis[(di-tert-butylphosphanyl)oxy]-4-hydroxyphenyl}chloridopalladium(II), [Pd(C22H39O3P2)Cl], 1, and {2,6-bis[(di-tert-butylphosphanyl)oxy]-4-hydroxyphenyl}chloridoplatinum(II), [Pt(C22H39O3P2)Cl], 2, the metal centres are coordinated in a distorted square-planar fashion by the POCOP pincer fragment and the chloride ligand. Both complexes form strong hydrogen-bonded chain structures through an interaction of the OH group in the 4-position of the aromatic POCOP backbone with the halide ligand.
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20
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Gayathri P, Karthikeyan S, Pannipara M, Al-Sehemi AG, Moon D, Anthony SP. Aggregation-enhanced emissive mechanofluorochromic carbazole-halogen positional isomers: tunable fluorescence via conformational polymorphism and crystallization-induced fluorescence switching. CrystEngComm 2019. [DOI: 10.1039/c9ce01227c] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
The conformational twist of the carbazole-halogen positional isomers produced blue and green polymorphs with tunable solid-state fluorescence and demonstrated mechanofluorochromism.
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Affiliation(s)
- Parthasarathy Gayathri
- Department of Chemistry
- School of Chemical & Biotechnology
- SASTRA Deemed University
- Thanjavur-613401
- India
| | | | - Mehboobali Pannipara
- Department of Chemistry
- King Khalid University
- Abha 61413
- Saudi Arabia
- Research center for
| | - Abdullah G. Al-Sehemi
- Department of Chemistry
- King Khalid University
- Abha 61413
- Saudi Arabia
- Research center for
| | - Dohyun Moon
- Beamline Department
- Pohang Accelerator Laboratory
- Pohang
- Korea
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21
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Dependence of NMR chemical shifts upon CH bond lengths of a methyl group involved in a tetrel bond. Chem Phys Lett 2019. [DOI: 10.1016/j.cplett.2018.10.069] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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22
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Joksch M, Agarwala H, Spannenberg A, Beweries T. Halogen Bonding in Ring‐Substituted Group 10 POCOP Iodido Complexes with Iodine and Its Possible Role in Oxidative Addition. Eur J Inorg Chem 2018. [DOI: 10.1002/ejic.201800664] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Markus Joksch
- Leibniz‐Institut für Katalyse e.V. an der Universität Rostock Albert‐Einstein‐Str. 29a 18059 Rostock Germany
| | - Hemlata Agarwala
- Leibniz‐Institut für Katalyse e.V. an der Universität Rostock Albert‐Einstein‐Str. 29a 18059 Rostock Germany
- Laboratoire de Chimie des Processus Biologiques Collège de France 11 Place Marcelin Berthelot 75005 Paris France
| | - Anke Spannenberg
- Leibniz‐Institut für Katalyse e.V. an der Universität Rostock Albert‐Einstein‐Str. 29a 18059 Rostock Germany
| | - Torsten Beweries
- Leibniz‐Institut für Katalyse e.V. an der Universität Rostock Albert‐Einstein‐Str. 29a 18059 Rostock Germany
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23
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Han C, Zhao D, Dong S. Three-dimensional supramolecular polymerization based on pillar[n]arenes (n = 5, 6) and halogen bonding interactions. Chem Commun (Camb) 2018; 54:13099-13102. [DOI: 10.1039/c8cc07993e] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Three dimensional supramolecular polymerization networks based on pillar[5,6]arenes were constructed both in solution and in the solid state.
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Affiliation(s)
- Chengyou Han
- Department of Chemistry
- College of Science
- China University of Petroleum (East China)
- Qingdao
- P. R. China
| | - Dezhi Zhao
- Department of Chemistry
- College of Science
- China University of Petroleum (East China)
- Qingdao
- P. R. China
| | - Shengyi Dong
- College of Chemistry and Chemical Engineering
- Hunan University
- Changsha 410082
- P. R. China
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