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Medvedev AG, Medved'ko AV, Vener MV, Churakov AV, Prikhodchenko PV, Vatsadze SZ. Dioxygen-halogen bonding exemplified by crystalline peroxosolvates of N, N'-bis(haloacetyl) bispidines. Phys Chem Chem Phys 2024; 26:5195-5206. [PMID: 38261463 DOI: 10.1039/d3cp05834d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2024]
Abstract
The halogen bonding in molecular crystals and supramolecular assemblies has been widely investigated. Special attention is given to the molecular structures capable of simultaneously exhibiting different types of non-covalent interactions, including conventional hydrogen bonds and halogen bonds. This paper systematically analyzes crystalline peroxosolvates of bispidine-based bis-amide derivatives, containing haloacetic acid residues, namely previously reported 1,1'-(1,5-dimethyl-3,7-diazabicyclo[3.3.1]nonane-3,7-diyl)bis(2-iodooethanone) peroxosolvate C13H20I2N2O2·H2O2 (1) and four new crystalline compounds, 1,1'-(1,5-dimethyl-3,7-diazabicyclo[3.3.1]nonane-3,7-diyl)bis(2-bromoethanone) peroxosolvate C13H20Br2N2O2·H2O2 (2), 1,1'-(9-hydroperoxy-9-hydroxy-1,5-dimethyl-3,7-diazabicyclo[3.3.1]nonane-3,7-diyl)bis(2-iodoethanone) peroxosolvate C13H20I2N2O5·0.5H2O2 (3), 1,1'-(9-hydroperoxy-9-hydroxy-1,5-dimethyl-3,7-diazabicyclo[3.3.1]nonane-3,7-diyl)bis(2-bromoethanone) peroxosolvate C13H20Br2N2O5·H2O2 (4), and 1,1'-(9-hydroperoxy-9-hydroxy-1,5-dimethyl-3,7-diazabicyclo[3.3.1]nonane-3,7-diyl)bis(2-chloroethanone) peroxosolvate C13H20Cl2N2O5·H2O2 (5). Compounds 2-5 were synthesized for the first time and their crystal structures were determined by single-crystal X-ray diffractometry (SCXRD). To the best of our knowledge, 3-5 are unprecedented crystalline hydrogen peroxide adducts of organic hydroperoxides (R-OOH). Short intermolecular contacts between halogen and hydroperoxo oxygen atoms were found in 1-3. The halogen bonding of C-I(Br) fragments with dioxygen species in compounds 1-3 as well as in the previously reported cocrystal of diacetone diperoxide with triodotrinitrobenzene (6) was identified through reduced density gradient analysis, Hirshfeld surface analysis, and Bader analysis of crystalline electron density. The interactions were quantified using the electron density topological properties acquired from the periodic DFT calculations and evaluated to lie in the range of 9-19 kJ mol-1. A distinctive spectral feature was revealed for this type of interaction, involving a red shift of the characteristic O-O stretching vibration by about 6 cm-1, which appeared in IR spectra as a narrow low-intensity band in the region 837-872 cm-1.
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Affiliation(s)
- Alexander G Medvedev
- Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Moscow 119991, Russian Federation.
| | - Aleksei V Medved'ko
- N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Moscow 119991, Russian Federation.
| | - Mikhail V Vener
- Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Moscow 119991, Russian Federation.
| | - Andrei V Churakov
- Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Moscow 119991, Russian Federation.
| | - Petr V Prikhodchenko
- Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Moscow 119991, Russian Federation.
| | - Sergey Z Vatsadze
- N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Moscow 119991, Russian Federation.
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Egorov PA, Grishanov DA, Medvedev AG, Churakov AV, Mikhaylov AA, Ottenbacher RV, Bryliakov KP, Babak MV, Lev O, Prikhodchenko PV. Organoantimony Dihydroperoxides: Synthesis, Crystal Structures, and Hydrogen Bonding Networks. Inorg Chem 2023. [PMID: 37311066 DOI: 10.1021/acs.inorgchem.3c00929] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Despite growing interest in the potential applications of p-block hydroperoxo complexes, the chemistry of inorganic hydroperoxides remains largely unexplored. For instance, single-crystal structures of antimony hydroperoxo complexes have not been reported to date. Herein, we present the synthesis of six triaryl and trialkylantimony dihydroperoxides [Me3Sb(OOH)2, Me3Sb(OOH)2·H2O, Ph3Sb(OOH)2·0.75(C4H8O), Ph3Sb(OOH)2·2CH3OH, pTol3Sb(OOH)2, pTol3Sb(OOH)2·2(C4H8O)], obtained by the reaction of the corresponding dibromide antimony(V) complexes with an excess of highly concentrated hydrogen peroxide in the presence of ammonia. The obtained compounds were characterized by single-crystal and powder X-ray diffraction, Fourier transform infrared and Raman spectroscopies, and thermal analysis. The crystal structures of all six compounds reveal hydrogen-bonded networks formed by hydroperoxo ligands. In addition to the previously reported double hydrogen bonding, new types of hydrogen-bonded motifs formed by hydroperoxo ligands were found, including infinite hydroperoxo chains. Solid-state density functional theory calculation of Me3Sb(OOH)2 revealed reasonably strong hydrogen bonding between OOH ligands with an energy of 35 kJ/mol. Additionally, the potential application of Ph3Sb(OOH)2·0.75(C4H8O) as a two-electron oxidant for the enantioselective epoxidation of olefins was investigated in comparison with Ph3SiOOH, Ph3PbOOH, t-BuOOH, and H2O2.
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Affiliation(s)
- Pavel A Egorov
- Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Leninskii pr. 31, Moscow 119991, Russian Federation
| | - Dmitry A Grishanov
- Casali Center of Applied Chemistry, Hebrew University of Jerusalem, Jerusalem 9190401, Israel
| | - Alexander G Medvedev
- Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Leninskii pr. 31, Moscow 119991, Russian Federation
| | - Andrei V Churakov
- Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Leninskii pr. 31, Moscow 119991, Russian Federation
| | - Alexey A Mikhaylov
- Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Leninskii pr. 31, Moscow 119991, Russian Federation
| | - Roman V Ottenbacher
- Boreskov Institute of Catalysis, Pr. Lavrentieva 5, Novosibirsk 630090, Russian Federation
| | - Konstantin P Bryliakov
- Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninskii pr. 47, Moscow 119991, Russian Federation
| | - Maria V Babak
- Drug Discovery Lab, Department of Chemistry, City University of Hong Kong, Kowloon, Hong Kong SAR 999077, China
| | - Ovadia Lev
- Casali Center of Applied Chemistry, Hebrew University of Jerusalem, Jerusalem 9190401, Israel
| | - Petr V Prikhodchenko
- Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Leninskii pr. 31, Moscow 119991, Russian Federation
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3
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N-Fluoroalkylpyrazolyl-substituted Nitronyl Nitroxides. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.133739] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Vener MV, Kharlanov OG, Sosorev AY. High-Mobility Naphthalene Diimide Derivatives Revealed by Raman-Based In Silico Screening. Int J Mol Sci 2022; 23:13305. [PMID: 36362092 PMCID: PMC9653651 DOI: 10.3390/ijms232113305] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2022] [Revised: 10/28/2022] [Accepted: 10/29/2022] [Indexed: 08/27/2023] Open
Abstract
Charge transport in crystalline organic semiconductors (OSCs) is considerably hindered by low-frequency vibrations introducing dynamic disorder in the charge transfer integrals. Recently, we have shown that the contributions of various vibrational modes to the dynamic disorder correlate with their Raman intensities and suggested a Raman-based approach for estimation of the dynamic disorder and search for potentially high-mobility OSCs. In the present paper, we showcase this approach by revealing the highest-mobility OSC(s) in two series of crystalline naphthalene diimide derivatives bearing alkyl or cycloalkyl substituents. In contrast to our previous studies, Raman spectra are not measured, but are instead calculated using periodic DFT. As a result, an OSC with a potentially high charge mobility is revealed in each of the two series, and further mobility calculations corroborate this choice. Namely, for the naphthalene diimide derivatives with butyl and cyclopentyl substituents, the estimated room-temperature isotropic electron mobilities are as high as 6 and 15 cm2 V-1 s-1, respectively, in the latter case even exceeding 20 cm2 V-1 s-1 in a two-dimensional plane. Thus, our results highlight the potential of using the calculated Raman spectra to search for high-mobility crystalline OSCs and reveal two promising OSCs, which were previously overlooked.
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Affiliation(s)
- Mikhail V. Vener
- Kurnakov Institute of General and Inorganic Chemistry of the Russian Academy of Sciences, Leninskii Prosp. 31, Moscow 119991, Russia
| | - Oleg G. Kharlanov
- Faculty of Physics, Lomonosov Moscow State University, Leninskie Gory 1/2, Moscow 119991, Russia
| | - Andrey Yu. Sosorev
- Faculty of Physics, Lomonosov Moscow State University, Leninskie Gory 1/2, Moscow 119991, Russia
- Shemyakin–Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences, Miklukho-Maklaya St. 16/10, Moscow 117997, Russia
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Ermolaev NL, Fukin GK, Shavyrin AS, Lopatin MA, Kuznetsova OV, Kryzhkov DI, Ignatov SK, Chuhmanov EP, Berberova NT, Pashchenko KP. Tris(trifluoromethyl)germyl Biphenyl Conjugated Molecular System with Ferrocenyl Substituent: Confirmation of Photoinduced Intramolecular Charge Transfer to the Germanium Center. J Organomet Chem 2022. [DOI: 10.1016/j.jorganchem.2022.122535] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Fast Quantum Approach for Evaluating the Energy of Non-Covalent Interactions in Molecular Crystals: The Case Study of Intermolecular H-Bonds in Crystalline Peroxosolvates. Molecules 2022; 27:molecules27134082. [PMID: 35807323 PMCID: PMC9268483 DOI: 10.3390/molecules27134082] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Revised: 06/20/2022] [Accepted: 06/21/2022] [Indexed: 11/17/2022] Open
Abstract
Energy/enthalpy of intermolecular hydrogen bonds (H-bonds) in crystals have been calculated in many papers. Most of the theoretical works used non-periodic models. Their applicability for describing intermolecular H-bonds in solids is not obvious since the crystal environment can strongly change H-bond geometry and energy in comparison with non-periodic models. Periodic DFT computations provide a reasonable description of a number of relevant properties of molecular crystals. However, these methods are quite cumbersome and time-consuming compared to non-periodic calculations. Here, we present a fast quantum approach for estimating the energy/enthalpy of intermolecular H-bonds in crystals. It has been tested on a family of crystalline peroxosolvates in which the H∙∙∙O bond set fills evenly (i.e., without significant gaps) the range of H∙∙∙O distances from ~1.5 to ~2.1 Å typical for strong, moderate, and weak H-bonds. Four of these two-component crystals (peroxosolvates of macrocyclic ethers and creatine) were obtained and structurally characterized for the first time. A critical comparison of the approaches for estimating the energy of intermolecular H-bonds in organic crystals is carried out, and various sources of errors are clarified.
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Buldashov IA, Medvedev AG, Mikhaylov AA, Churakov AV, Lev O, Prikhodchenko PV. Non-covalent interactions of the hydroperoxo group in crystalline adducts of organic hydroperoxides and their potassium salts. CrystEngComm 2022. [DOI: 10.1039/d2ce01017h] [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
X-ray diffraction of three new stable cocrystals of potassium salts of organic hydroperoxides with molecular hydroperoxides reveals strong charge-assisted ROO−⋯HOOR H-bonds.
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Affiliation(s)
- Ivan A. Buldashov
- Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Leninskii prosp. 31, Moscow 119991, Russia
- Faculty of Chemistry, National Research University Higher School of Economics, Miasnitskaya Str. 20, Moscow 101000, Russia
| | - Alexander G. Medvedev
- Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Leninskii prosp. 31, Moscow 119991, Russia
| | - Alexey A. Mikhaylov
- Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Leninskii prosp. 31, Moscow 119991, Russia
| | - Andrei V. Churakov
- Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Leninskii prosp. 31, Moscow 119991, Russia
| | - Ovadia Lev
- The Casali Center, The Institute of Chemistry, and The Harvey M. Krueger Family Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem, Edmond J. Safra Campus, Jerusalem 91904, Israel
| | - Petr V. Prikhodchenko
- Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Leninskii prosp. 31, Moscow 119991, Russia
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Isomeric 4,2′:6′,4″- and 3,2′:6′,3″-Terpyridines with Isomeric 4′-Trifluoromethylphenyl Substituents: Effects on the Assembly of Coordination Polymers with [Cu(hfacac)2] (Hhfacac = Hexafluoropentane-2,4-dione). INORGANICS 2021. [DOI: 10.3390/inorganics9070054] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
The isomers 4′-(4-(trifluoromethyl)phenyl)-4,2′:6′,4″-terpyridine (1), 4′-(3-(trifluoromethyl)phenyl)-4,2′:6′,4″-terpyridine (2), 4′-(4-(trifluoromethyl)phenyl)-3,2′:6′,3″-terpyridine (3), and 4′-(3-(trifluoromethyl)phenyl)-3,2′:6′,3″-terpyridine (4) have been prepared and characterized. The single crystal structures of 1 and 2 were determined. The 1D-polymers [Cu2(hfacac)4(1)2]n·2nC6H4Cl2 (Hhfacac = 1,1,1,5,5,5-hexafluoropentane-2,4-dione), [Cu(hfacac)2(2)]n·2nC6H5Me, [Cu2(hfacac)4(3)2]n·nC6H4Cl2, [Cu2(hfacac)4(3)2]n·nC6H5Cl, and [Cu(hfacac)2(4)]n·nC6H5Cl have been formed by reactions of 1, 2, 3 and 4 with [Cu(hfacac)2]·H2O under conditions of crystal growth by layering and four of these coordination polymers have been formed on a preparative scale. [Cu2(hfacac)4(1)2]n·2nC6H4Cl2 and [Cu(hfacac)2(2)]n·2nC6H5Me are zig-zag chains and the different substitution position of the CF3 group in 1 and 2 does not affect this motif. Packing of the polymer chains is governed mainly by C–F...F–C contacts, and there are no inter-polymer π-stacking interactions. The conformation of the 3,2′:6′,3″-tpy unit in [Cu2(hfacac)4(3)2]n·nC6H4Cl2 and [Cu(hfacac)2(4)]n·nC6H5Cl differs, leading to different structural motifs in the 1D-polymer backbones. In [Cu(hfacac)2(4)]n·nC6H5Cl, the peripheral 3-CF3C6H4 unit is accommodated in a pocket between two {Cu(hfacac)2} units and engages in four C–Hphenyl...F–Chfacac contacts which lock the phenylpyridine unit in a near planar conformation. In [Cu2(hfacac)4(3)2]n·nC6H4Cl2 and [Cu(hfacac)2(4)]n·nC6H5Cl, π-stacking interactions between 4′-trifluoromethylphenyl-3,2′:6′,3″-tpy domains are key packing interactions, and this contrasts with the packing of polymers incorporating 1 and 2. We use powder X-ray diffraction to demonstrate that the assemblies of the coordination polymers are reproducible, and that a switch from a 4,2′:6′,4″- to 3,2′:6′,3″-tpy metal-binding unit is accompanied by a change from dominant C–F...F–C and C–F...H–C contacts to π-stacking of arene domains between ligands 3 or 4.
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Surov AO, Voronin AP, Drozd KV, Gruzdev MS, Perlovich GL, Prashanth J, Balasubramanian S. Polymorphic forms of antiandrogenic drug nilutamide: structural and thermodynamic aspects. Phys Chem Chem Phys 2021; 23:9695-9708. [PMID: 33908506 DOI: 10.1039/d1cp00793a] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Attempts to obtain new cocrystals of nonsteroidal antiandrogenic drug nilutamide produced alternative polymorphic forms of the compound (Form II and Form III) and their crystal structures were elucidated by single-crystal X-ray diffraction. Apart from the cocrystallization technique, lyophilization was found to be an effective strategy for achieving polymorph control of nilutamide, which was difficult to obtain by other methods. The physicochemical properties and relative stability of the commercial Form I and newly obtained Form II were comprehensively investigated by a variety of analytical methods (thermal analysis, solution calorimetry, solubility, and sublimation), whereas for Form III, only a handful of experimental parameters were obtained due to the elusive nature of the polymorph. Form I and Form II were found to be monotropically related, with Form I being confirmed as the thermodynamically most stable solid phase. In addition, the performance of different DFT-D and semi-empirical schemes for lattice energy calculation and polymorph energy ranking was compared and analysed. Lattice energy calculations using periodic DFT at B3LYP-D3/6-31(F+)G(d,p) and PBEh-3c/def2-mSVP levels of theory were found to provide the most accurate lattice energy values for Form I against experimental data, while PIXEL and PBEh-3c/def2-mSVP were the only methods that predicted the correct order of stability of Forms I and II.
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Affiliation(s)
- Artem O Surov
- G. A. Krestov Institute of Solution Chemistry of the Russian Academy of Sciences, 1 Akademicheskaya St., 153045 Ivanovo, Russia.
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Kuznetsov ML. Strength of the [Z-I···Hal] - and [Z-Hal···I] - Halogen Bonds: Electron Density Properties and Halogen Bond Length as Estimators of Interaction Energy. Molecules 2021; 26:2083. [PMID: 33916483 PMCID: PMC8038634 DOI: 10.3390/molecules26072083] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2021] [Revised: 03/29/2021] [Accepted: 03/31/2021] [Indexed: 11/29/2022] Open
Abstract
Bond energy is the main characteristic of chemical bonds in general and of non-covalent interactions in particular. Simple methods of express estimates of the interaction energy, Eint, using relationships between Eint and a property which is easily accessible from experiment is of great importance for the characterization of non-covalent interactions. In this work, practically important relationships between Eint and electron density, its Laplacian, curvature, potential, kinetic, and total energy densities at the bond critical point as well as bond length were derived for the structures of the [Z-I···Hal]- and [Z-Hal···I]- types bearing halogen bonds and involving iodine as interacting atom(s) (totally 412 structures). The mean absolute deviations for the correlations found were 2.06-4.76 kcal/mol.
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Affiliation(s)
- Maxim L. Kuznetsov
- Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa, Avenida Rovisco Pais, 1049-001 Lisbon, Portugal; ; Tel.: +351-218-419-236
- Institute of Chemistry, Saint Petersburg State University, Universitetskaya Nab. 7/9, 199034 Saint Petersburg, Russia
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Goloveshkin AS, Korlyukov AA, Vologzhanina AV. Novel Polymorph of Favipiravir-An Antiviral Medication. Pharmaceutics 2021; 13:139. [PMID: 33494498 PMCID: PMC7911870 DOI: 10.3390/pharmaceutics13020139] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Revised: 01/15/2021] [Accepted: 01/18/2021] [Indexed: 01/18/2023] Open
Abstract
Various solid forms of pharmaceutically important compounds exhibit different physical properties and bioactivity; thus, knowledge of the structural landscape and prediction of spontaneous polymorph transformations for an active pharmaceutical ingredient is of practical value for the pharmaceutical industry. By recrystallization from ethyl acetate, a novel polymorph of 6-fluoro-3-hydroxypyrazine-2-carboxamide (trademark favipiravir, RNA polymerase inhibitor) was obtained and characterized using differential scanning calorimetry (DSC), infra-red spectroscopy and powder X-ray diffraction (XRD) analysis. The favipiravir molecule in two polymorphs realizes similar H-bonding motifs, but the overall H-bonded networks differ. Based on periodic density functional theory calculations, the novel tetragonal polymorph with two interpenetrated H-bonded networks is slightly less stable than the orthorhombic one with the zst topology of the underlying H-bonded net that is in accord with experimentally observed powder XRD patterns of slow conversion of the tetragonal phase to the orthorhombic one. However, topological analysis of net relations revealed that no transformations can be applied to convert H-bonded networks in the experimental unit cells, and DSC data indicate no solid-state reactions at heating.
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Affiliation(s)
- Alexander S. Goloveshkin
- A. N. Nesmeyanov Institute of Organoelement Compounds of the Russian Academy of Sciences, 28 Vavilova str, 119991 Moscow, Russia; (A.S.G.); (A.A.K.)
| | - Alexander A. Korlyukov
- A. N. Nesmeyanov Institute of Organoelement Compounds of the Russian Academy of Sciences, 28 Vavilova str, 119991 Moscow, Russia; (A.S.G.); (A.A.K.)
- Higher Chemical College of the Russian Academy of Sciences, D.M. Mendeleev University of Chemical Technology of Russia, Miusskaya sq. 9, 125047 Moscow, Russia
| | - Anna V. Vologzhanina
- A. N. Nesmeyanov Institute of Organoelement Compounds of the Russian Academy of Sciences, 28 Vavilova str, 119991 Moscow, Russia; (A.S.G.); (A.A.K.)
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Rutkowski K, Melikova S, Rospenk M. Evidence of noncovalent interactions between sevoflurane and dimethyl ether. FTIR cryospectroscopic and ab initio studies. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2020.128852] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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13
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Abstract
Magnetic shielding depends on molecular structure and noncovalent interactions. This study shows that it is also measurably dependent on the electric field generated by surrounding molecules. This effect has been observed explicitly for 31P nucleus using the adduct under field approach. The results obtained indicate that the field strength experienced by molecules in crystals consisting of molecules with large dipole moments is similar to that in polar solvents. Therefore, magnetic shielding should explicitly depend on solvent polarity. It is important to note that this effect cannot be reproduced correctly within the polarizable continuum model approach.
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Affiliation(s)
- Ilya G Shenderovich
- Institute of Organic Chemistry, University of Regensburg, Universitaetstrasse 31, 93053 Regensburg, Germany
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14
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Čierna M, Markus J, Doháňošová J, Moncol J, Jakubec P, Berkeš D, Caletková O. Stereoselective Mannich Reaction Driven by Crystallization. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000774] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Michaela Čierna
- Department of Organic Chemistry Faculty of Chemical and Food Technology Slovak University of Technology Radlinského 9 812 37 Bratislava Slovak Republic
| | - Jozef Markus
- Department of Organic Chemistry Faculty of Chemical and Food Technology Slovak University of Technology Radlinského 9 812 37 Bratislava Slovak Republic
| | - Jana Doháňošová
- Central Laboratories Slovak University of Technology Bratislava Slovak Republic
| | - Ján Moncol
- Department of Inorganic Chemistry Faculty of Chemical and Food Technology Slovak University of Technology Radlinského 9 812 37 Bratislava Slovak Republic
| | - Pavol Jakubec
- Department of Organic Chemistry Faculty of Chemical and Food Technology Slovak University of Technology Radlinského 9 812 37 Bratislava Slovak Republic
| | - Dušan Berkeš
- Department of Organic Chemistry Faculty of Chemical and Food Technology Slovak University of Technology Radlinského 9 812 37 Bratislava Slovak Republic
| | - Oľga Caletková
- Department of Organic Chemistry Faculty of Chemical and Food Technology Slovak University of Technology Radlinského 9 812 37 Bratislava Slovak Republic
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Churchill SBS, Sharma M, Brückner C, Zeller M. Crystal structure of 2,3-dimeth-oxy- meso-tetra-kis(penta-fluoro-phen-yl)morpholino-chlorin methyl-ene chloride 0.44-solvate. Acta Crystallogr E Crystallogr Commun 2020; 76:1222-1228. [PMID: 32844003 PMCID: PMC7405590 DOI: 10.1107/s2056989020009093] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2020] [Accepted: 07/02/2020] [Indexed: 03/30/2024]
Abstract
The title morpholino-chlorin, C46H16F20N4O3, was crystallized from hexa-ne/methyl-ene chloride as its 0.44 methyl-ene chloride solvate, C46H16F20N4O3·0.44CH2Cl2. The morpholino-chlorin was synthesized by stepwise oxygen insertion into a porphyrin using a 'breaking and mending strategy': NaIO4-induced diol cleavage of the corresponding 2,3-di-hydroxy-chlorin with in situ methanol-induced, acid-catalyzed intra-molecular ring closure of the inter-mediate secochlorins bis-aldehyde. Formally, one of the pyrrolic building blocks was thus replaced by a 2,3-di-meth-oxy-morpholine moiety. Like other morpholino-chlorins, the macrocycle of the title compound adopts a ruffled conformation, and the modulation of the porphyrinic π-system chromophore induces a red-shift of its optical spectrum compared to its corresponding chlorin analog. Packing in the crystal is governed by inter-actions involving the fluorine atoms of the penta-fluoro-phenyl substituents, dominated by C-H⋯F inter-actions, and augmented by short fluorine⋯fluorine contacts, C-F⋯π inter-actions, and one severely slipped π-stacking inter-action between two penta-fluoro-phenyl rings. The solvate methyl-ene chloride mol-ecule is disordered over two independent positions around an inversion center with occupancies of two × 0.241 (5) and two × 0.199 (4), for a total site occupancy of 88%.
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Affiliation(s)
| | - Meenakshi Sharma
- Department of Chemistry, University of Connecticut, Storrs, Connecticut 06269-3060, USA
| | - Christian Brückner
- Department of Chemistry, University of Connecticut, Storrs, Connecticut 06269-3060, USA
| | - Matthias Zeller
- Department of Chemistry, Purdue University, 560 Oval Dr., W. Lafayette, IN 47907-2084, USA
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16
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Trukhanov VA, Dominskiy DI, Parashchuk OD, Feldman EV, Surin NM, Svidchenko EA, Skorotetcky MS, Borshchev OV, Paraschuk DY, Sosorev AY. Impact of N-substitution on structural, electronic, optical, and vibrational properties of a thiophene-phenylene co-oligomer. RSC Adv 2020; 10:28128-28138. [PMID: 35519088 PMCID: PMC9055666 DOI: 10.1039/d0ra03343j] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Accepted: 07/17/2020] [Indexed: 11/21/2022] Open
Abstract
Properties of the organic semiconductors can be finely tuned via changes in their molecular structure. However, the relationship between the molecular structure, molecular packing, and (opto)electronic properties of the organic semiconductors to guide their smart design remains elusive. In this study, we address computationally and experimentally the impact of subtle modification of a thiophene-phenylene co-oligomer CF3-PTTP-CF3 on the molecular properties, crystal structure, charge transport, and optoelectronic properties. This modification consists in the substitution of two C-H atom pairs by N atoms in the thiophene units and hence converting them to thiazole units. A dramatic effect of the N-substitution on the crystal structure-the crossover from the herringbone packing motif to π-stacking-is attributed to significant changes in the molecular electrostatic potential. The changes in the molecular and crystal structure resulting from the N-substitution clearly reveal themselves in the Raman spectra. The increase of the calculated electron mobility in the corresponding crystals as a result of the N-substitution is rationalized in terms of the changes in the molecular and crystal structure. The charge transport, electroluminescence, and photoelectric properties are compared in thin-film organic field-effect transistors based on CF3-PTTP-CF3 and its N-substituted counterpart. An intriguing similarity between the effects of N-substitution in the thiophene rings and fluorination of the thiophene-phenylene oligomer is revealed, which is probably associated with a more general effect of electronegative substitution. The obtained results are anticipated to facilitate the rational design of organic semiconductors.
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Affiliation(s)
- Vasiliy A Trukhanov
- Faculty of Physics & International Laser Centre of Lomonosov Moscow State University Leninskiye Gory 1/62 Moscow 119991 Russia
- Institute of Spectroscopy of the Russian Academy of Sciences Fizicheskaya St. 5, Troitsk Moscow 108840 Russia
| | - Dmitry I Dominskiy
- Faculty of Physics & International Laser Centre of Lomonosov Moscow State University Leninskiye Gory 1/62 Moscow 119991 Russia
| | - Olga D Parashchuk
- Faculty of Physics & International Laser Centre of Lomonosov Moscow State University Leninskiye Gory 1/62 Moscow 119991 Russia
| | - Elizaveta V Feldman
- Faculty of Physics & International Laser Centre of Lomonosov Moscow State University Leninskiye Gory 1/62 Moscow 119991 Russia
| | - Nikolay M Surin
- Enikolopov Institute of Synthetic Polymeric Materials of Russian Academy of Sciences Profsoyuznaya St. 70 Moscow 117393 Russia
| | - Evgeniya A Svidchenko
- Enikolopov Institute of Synthetic Polymeric Materials of Russian Academy of Sciences Profsoyuznaya St. 70 Moscow 117393 Russia
| | - Maxim S Skorotetcky
- Enikolopov Institute of Synthetic Polymeric Materials of Russian Academy of Sciences Profsoyuznaya St. 70 Moscow 117393 Russia
| | - Oleg V Borshchev
- Enikolopov Institute of Synthetic Polymeric Materials of Russian Academy of Sciences Profsoyuznaya St. 70 Moscow 117393 Russia
| | - Dmitry Yu Paraschuk
- Faculty of Physics & International Laser Centre of Lomonosov Moscow State University Leninskiye Gory 1/62 Moscow 119991 Russia
| | - Andrey Yu Sosorev
- Faculty of Physics & International Laser Centre of Lomonosov Moscow State University Leninskiye Gory 1/62 Moscow 119991 Russia
- Institute of Spectroscopy of the Russian Academy of Sciences Fizicheskaya St. 5, Troitsk Moscow 108840 Russia
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17
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Voronin AP, Surov AO, Churakov AV, Parashchuk OD, Rykounov AA, Vener MV. Combined X-ray Crystallographic, IR/Raman Spectroscopic, and Periodic DFT Investigations of New Multicomponent Crystalline Forms of Anthelmintic Drugs: A Case Study of Carbendazim Maleate. Molecules 2020; 25:E2386. [PMID: 32455564 PMCID: PMC7287603 DOI: 10.3390/molecules25102386] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Revised: 05/17/2020] [Accepted: 05/18/2020] [Indexed: 12/14/2022] Open
Abstract
Synthesis of multicomponent solid forms is an important method of modifying and fine-tuning the most critical physicochemical properties of drug compounds. The design of new multicomponent pharmaceutical materials requires reliable information about the supramolecular arrangement of molecules and detailed description of the intermolecular interactions in the crystal structure. It implies the use of a combination of different experimental and theoretical investigation methods. Organic salts present new challenges for those who develop theoretical approaches describing the structure, spectral properties, and lattice energy Elatt. These crystals consist of closed-shell organic ions interacting through relatively strong hydrogen bonds, which leads to Elatt > 200 kJ/mol. Some technical problems that a user of periodic (solid-state) density functional theory (DFT) programs encounters when calculating the properties of these crystals still remain unsolved, for example, the influence of cell parameter optimization on the Elatt value, wave numbers, relative intensity of Raman-active vibrations in the low-frequency region, etc. In this work, various properties of a new two-component carbendazim maleate crystal were experimentally investigated, and the applicability of different DFT functionals and empirical Grimme corrections to the description of the obtained structural and spectroscopic properties was tested. Based on this, practical recommendations were developed for further theoretical studies of multicomponent organic pharmaceutical crystals.
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Affiliation(s)
- Alexander P. Voronin
- Department of Physical Chemistry of Drugs, G.A. Krestov Institute of Solution Chemistry of RAS, 153045 Ivanovo, Russia; (A.P.V.); (A.O.S.)
| | - Artem O. Surov
- Department of Physical Chemistry of Drugs, G.A. Krestov Institute of Solution Chemistry of RAS, 153045 Ivanovo, Russia; (A.P.V.); (A.O.S.)
| | - Andrei V. Churakov
- Department of Crystal Chemistry and X-ray Diffraction, N.S. Kurnakov Institute of General and Inorganic Chemistry of RAS, 119991 Moscow, Russia;
| | - Olga D. Parashchuk
- Faculty of Physics, Lomonosov Moscow State University, 119991 Moscow, Russia;
| | - Alexey A. Rykounov
- Theoretical Department, FSUE “RFNC-VNIITF Named after Academ. E.I. Zababakhin”, 456770 Snezhinsk, Russia;
| | - Mikhail V. Vener
- Department of Quantum Chemistry, D. Mendeleev University of Chemical Technology, 125047 Moscow, Russia
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18
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(Perylene)3-(TCNQF1)2: Yet Another Member in the Series of Perylene–TCNQFx Polymorphic Charge Transfer Crystals. CRYSTALS 2020. [DOI: 10.3390/cryst10030177] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The 3:2 Charge Transfer (CT) co-crystal (Perylene)3(TCNQF1)2 is grown by the Physical Vapor Transport (PVT) method, and characterized structurally and spectroscopically. Infrared analysis of the charge sensitive modes reveals a low degree of charge transfer (less than 0.1) between donor and acceptor molecules. The crystal is isostructural to the other 3:2 CT crystals formed by Perylene with TCNQF2 and TCNQF4, whereas such stoichiometry and packing is not known for the CT crystals with non-fluorinated TCNQ. The analysis of the isostructural family of 3:2 Perylene–TCNQFx (x = 1,2,4) co-crystal put in evidence the role of weak F…HC bonding in stabilizing this type of structure
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19
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Chernyshov IY, Ananyev IV, Pidko EA. Revisiting van der Waals Radii: From Comprehensive Structural Analysis to Knowledge-Based Classification of Interatomic Contacts. Chemphyschem 2020; 21:370-376. [PMID: 31912957 PMCID: PMC7079509 DOI: 10.1002/cphc.201901083] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2019] [Revised: 01/06/2020] [Indexed: 11/25/2022]
Abstract
Weak noncovalent interactions are responsible for structure and properties of almost all supramolecular systems, such as nucleic acids, enzymes, and pharmaceutical crystals. However, the analysis of their significance and structural role is not straightforward and commonly requires model studies. Herein, we describe an efficient and universal approach for the analysis of noncovalent interactions and determination of van der Waals radii using the line-of-sight (LoS) concept. The LoS allows to unambiguously identify and classify the "direct" interatomic contacts in complex molecular systems. This approach not only provides an improved theoretical base to molecular "sizes" but also enables the quantitative analysis of specificity, anisotropy, and steric effects of intermolecular interactions.
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Affiliation(s)
- Ivan Yu. Chernyshov
- TheoMAT Group, ChemBio clusterITMO UniversityLomonosova 9St. Petersburg191002Russia
| | - Ivan V. Ananyev
- Faculty of ChemistryNational Research University Higher School of EconomicsMoscow101000Russia
| | - Evgeny A. Pidko
- TheoMAT Group, ChemBio clusterITMO UniversityLomonosova 9St. Petersburg191002Russia
- Inorganic Systems Engineering GroupDelft University of TechnologyVan der Maasweg 92629 HZDelft (TheNetherlands
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20
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Sosorev AY, Trukhanov VA, Maslennikov DR, Borshchev OV, Polyakov RA, Skorotetcky MS, Surin NM, Kazantsev MS, Dominskiy DI, Tafeenko VA, Ponomarenko SA, Paraschuk DY. Fluorinated Thiophene-Phenylene Co-Oligomers for Optoelectronic Devices. ACS APPLIED MATERIALS & INTERFACES 2020; 12:9507-9519. [PMID: 32009377 DOI: 10.1021/acsami.9b20295] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Organic optoelectronics requires materials combining bright luminescence and efficient ambipolar charge transport. Thiophene-phenylene co-oligomers (TPCOs) are promising highly emissive materials with decent charge-carrier mobility; however, they typically show poor electron injection in devices, which is usually assigned to high energies of their lowest unoccupied molecular orbitals (LUMOs). A widely used approach to lower the frontier orbitals energy levels of a conjugated molecule is its fluorination. In this study, we synthesized three new fluorinated derivatives of one of the most popular TPCOs, 2,2'-(1,4-phenylene)bis[5-phenylthiophene] (PTPTP) and studied them by cyclic voltammetry, absorption, photoluminescence, and Raman spectroscopies. The obtained data reveal a positive effect of fluorination on the optoelectronic properties of PTPTP: LUMO levels are finely tuned, and photoluminescence quantum yield and absorbance are increased. We then grew crystals from fluorinated PTPTPs, resolved their structures, and showed that fluorination dramatically affects the packing motif and facilitates π-stacking. Finally, we fabricated thin-film organic field-effect transistors (OFETs) and demonstrated a strong impact of fluorination on charge injection/transport for both types of charge carriers, namely, electrons and holes. Specifically, balanced ambipolar charge transport and electroluminescence were observed only in the OFET active channel based on the partially fluorinated PTPTP. The obtained results can be extended to other families of conjugated oligomers and highlight the efficiency of fluorination for rational design of organic semiconductors for optoelectronic devices.
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Affiliation(s)
- Andrey Yu Sosorev
- Faculty of Physics and International Laser Center , Lomonosov Moscow State University , Leninskie Gory 1/62 , Moscow 119991 , Russia
- Institute of Spectroscopy , Russian Academy of Sciences , Fizicheskaya 5, Troitsk , Moscow 108840 , Russia
- Enikolopov Institute of Synthetic Polymeric Materials , Russian Academy of Science , Profsoyuznaya 70 , Moscow 117393 , Russia
| | - Vasiliy A Trukhanov
- Faculty of Physics and International Laser Center , Lomonosov Moscow State University , Leninskie Gory 1/62 , Moscow 119991 , Russia
- Enikolopov Institute of Synthetic Polymeric Materials , Russian Academy of Science , Profsoyuznaya 70 , Moscow 117393 , Russia
| | - Dmitry R Maslennikov
- Faculty of Physics and International Laser Center , Lomonosov Moscow State University , Leninskie Gory 1/62 , Moscow 119991 , Russia
- Institute of Spectroscopy , Russian Academy of Sciences , Fizicheskaya 5, Troitsk , Moscow 108840 , Russia
- Enikolopov Institute of Synthetic Polymeric Materials , Russian Academy of Science , Profsoyuznaya 70 , Moscow 117393 , Russia
| | - Oleg V Borshchev
- Enikolopov Institute of Synthetic Polymeric Materials , Russian Academy of Science , Profsoyuznaya 70 , Moscow 117393 , Russia
| | - Roman A Polyakov
- Enikolopov Institute of Synthetic Polymeric Materials , Russian Academy of Science , Profsoyuznaya 70 , Moscow 117393 , Russia
| | - Maxim S Skorotetcky
- Enikolopov Institute of Synthetic Polymeric Materials , Russian Academy of Science , Profsoyuznaya 70 , Moscow 117393 , Russia
| | - Nikolay M Surin
- Enikolopov Institute of Synthetic Polymeric Materials , Russian Academy of Science , Profsoyuznaya 70 , Moscow 117393 , Russia
| | - Maxim S Kazantsev
- N.N. Vorozhtsov Novosibirsk Institute of Organic Chemistry , Lavrentieva 9 , Novosibirsk 630090 , Russia
| | - Dmitry I Dominskiy
- Faculty of Physics and International Laser Center , Lomonosov Moscow State University , Leninskie Gory 1/62 , Moscow 119991 , Russia
- Enikolopov Institute of Synthetic Polymeric Materials , Russian Academy of Science , Profsoyuznaya 70 , Moscow 117393 , Russia
| | - Viktor A Tafeenko
- Department of Chemistry , Lomonosov Moscow State University , Leninskie Gory 1/3 , Moscow 119991 , Russia
| | - Sergey A Ponomarenko
- Enikolopov Institute of Synthetic Polymeric Materials , Russian Academy of Science , Profsoyuznaya 70 , Moscow 117393 , Russia
- Department of Chemistry , Lomonosov Moscow State University , Leninskie Gory 1/3 , Moscow 119991 , Russia
| | - Dmitry Yu Paraschuk
- Faculty of Physics and International Laser Center , Lomonosov Moscow State University , Leninskie Gory 1/62 , Moscow 119991 , Russia
- Enikolopov Institute of Synthetic Polymeric Materials , Russian Academy of Science , Profsoyuznaya 70 , Moscow 117393 , Russia
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21
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Bartashevich EV, Matveychuk YV, Mukhitdinova SE, Sobalev SA, Khrenova MG, Tsirelson VG. The common trends for the halogen, chalcogen, and pnictogen bonds via sorting principles and local bonding properties. Theor Chem Acc 2020. [DOI: 10.1007/s00214-019-2534-y] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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22
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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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23
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Melikova SM, Voronin AP, Panek J, Frolov NE, Shishkina AV, Rykounov AA, Tretyakov PY, Vener MV. Interplay of π-stacking and inter-stacking interactions in two-component crystals of neutral closed-shell aromatic compounds: periodic DFT study. RSC Adv 2020; 10:27899-27910. [PMID: 35519116 PMCID: PMC9055576 DOI: 10.1039/d0ra04799f] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2020] [Accepted: 07/13/2020] [Indexed: 01/19/2023] Open
Abstract
This paper bridges the gap between high-level ab initio computations of gas-phase models of 1 : 1 arene–arene complexes and calculations of the two-component (binary) organic crystals using atom–atom potentials. The studied crystals consist of electron-rich and electron-deficient compounds, which form infinite stacks (columns) of heterodimers. The sublimation enthalpy of crystals has been evaluated by DFT periodic calculations, while intermolecular interactions have been characterized by Bader analysis of the periodic electronic density. The consideration of aromatic compounds without a dipole moment makes it possible to reveal the contribution of quadrupole–quadrupole interactions to the π-stacking energy. These interactions are significant for heterodimers formed by arenes with more than 2 rings, with absolute values of the traceless quadrupole moment (Qzz) larger than 10 D Å. The further aggregation of neighboring stacks is due to the C–H⋯F interactions in arene/perfluoroarene crystals. In crystals consisting of arene and an electron-deficient compound such as pyromellitic dianhydride, aggregation occurs due to the C–H⋯O interactions. The C–H⋯F and C–H⋯O inter-stacking interactions make the main contribution to the sublimation enthalpy, which exceeds 150 kJ mol−1 for the two-component crystals formed by arenes with more than 2 rings. The interplay of π-stacking and inter-stacking interactions in two-component organic crystals without conventional hydrogen bonds.![]()
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24
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Synthesis and structural study of 2-(haloalkyl)-3-methylchromones. MONATSHEFTE FUR CHEMIE 2019. [DOI: 10.1007/s00706-019-02512-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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25
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Kuznetsov ML. Relationships between Interaction Energy and Electron Density Properties for Homo Halogen Bonds of the [(A) nY-X···X-Z(B) m] Type (X = Cl, Br, I). Molecules 2019; 24:E2733. [PMID: 31357615 PMCID: PMC6695802 DOI: 10.3390/molecules24152733] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2019] [Revised: 07/16/2019] [Accepted: 07/25/2019] [Indexed: 01/31/2023] Open
Abstract
Relationships between interaction energy (Eint) and electron density properties at the X···X bond critical point or the d(X···X) distance were established for the large set of structures [(A)nY-X···X-Z(B)m] bearing the halogen bonds Cl···Cl, Br···Br, and I···I (640 structures in total). The best estimator of Eint is the kinetic energy density (Gb), which reasonably approximates the whole set of the structures as -Eint = 0.128Gb2 - 0.82Gb + 1.66 (R2 = 0.91, mean absolute deviation 0.39 kcal/mol) and demonstrates low dispersion. The potential and kinetic energy densities, electron density, and the d(X···X) distance behave similarly as estimators of Eint for the individual series Cl···Cl, Br···Br, and I···I. A number of the Eint(property) correlations are recommended for the practical application in the express estimates of the strength of the homo-halogen bonds.
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Affiliation(s)
- Maxim L Kuznetsov
- Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa, Avenida Rovisco Pais, 1049-001 Lisbon, Portugal.
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26
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Molecular Structures Polymorphism the Role of F…F Interactions in Crystal Packing of Fluorinated Tosylates. CRYSTALS 2019. [DOI: 10.3390/cryst9050242] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The peculiarities of interatomic interactions formed by fluorine atoms were studied in four tosylate derivatives p-CH3C6H4OSO2CH2CF2CF3 and p-CH3C6H4OSO2CH2(CF2)nCHF2 (n = 1, 5, 7) using X-ray diffraction and quantum chemical calculations. Compounds p-CH3C6H4OSO2CH2(CF2)nCHF2 (n = 1, 5) were crystallized in several polymorph modifications. Analysis of intermolecular bonding was carried out using QTAIM approach and energy partitioning. All compounds are characterized by crystal packing of similar type and the contribution of intermolecular interactions formed by fluorine atoms to lattice energy is raised along with the increase of their amount. The energy of intra- and intermolecular F…F interactions is varied in range 0.5–13.0 kJ/mol. Total contribution of F…F interactions to lattice energy does not exceed 40%. Crystal structures of studied compounds are stabilized mainly by C-H…O and C-H…F weak hydrogen bonds. The analysis of intermolecular interactions and lattice energies in polymorphs of p-CH3C6H4OSO2CH2(CF2)nCHF2 (n = 1, 5) has shown that most stabilized are characterized by the least contribution of F…F interactions.
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27
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Constantinides CP, Lawson DB, Berezin AA, Zissimou GA, Manoli M, Leitus GM, Koutentis PA. Ferromagnetic interactions in a 1D Heisenberg linear chain of 1-phenyl-3,7-bis(trifluoromethyl)-1,4-dihydro-1,2,4-benzotriazin-4-yls. CrystEngComm 2019. [DOI: 10.1039/c9ce00739c] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
1-Phenyl-3,7-bis(trifluoromethyl)-1,4-dihydro-1,2,4-benzotriazin-4-yl (2), was characterized by single crystal X-ray diffractometry and variable temperature SQUID magnetometry to investigate its structure-magnetism correlation.
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Affiliation(s)
| | - Daniel B. Lawson
- Department of Natural Sciences
- University of Michigan – Dearborn
- Dearborn
- USA
| | | | | | - Maria Manoli
- Department of Chemistry
- University of Cyprus
- 1678 Nicosia
- Cyprus
| | - Gregory M. Leitus
- Department of Organic Chemistry
- Weizmann Institute of Science
- 76100 Rehovot
- Israel
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