51
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Muller FM, von Eschwege KG, Conradie J. Conformational preference of nitroformazans: A computational study. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2019.127463] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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52
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X-ray diffraction and QTAIM calculations of the non-covalent intermolecular fluorine-fluorine interactions in tris(trifluoroacetylacetonato)-manganese(III). J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2019.127119] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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53
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Majerz I, Dziembowska T. Substituent effect on inter-ring interaction in paracyclophanes. Mol Divers 2020; 24:11-20. [PMID: 30783945 PMCID: PMC7033074 DOI: 10.1007/s11030-019-09926-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2018] [Accepted: 02/02/2019] [Indexed: 11/19/2022]
Abstract
The theoretical calculations, namely multipole-derived charge analysis, quantum theory of atom in molecules, and non-bonding interaction (NCI), were performed for [2.2]paracyclophanes, [2.2]paracyclophane-7,9-dienes, and [3.3]paracyclophanes optimized at B3LYP/6-311++G** level, including dispersion correction. The substituent effect of the electron donor N(Me)2 and electron acceptor NO2 group and the influence of the length of bridges joining the aromatic ring on aromatic ring interaction energy (AIE) and strain energy were discussed. The local and electrostatic character of the substituent effect in paracyclophanes was shown. The presence of the weak orbital through-space C···C interaction between the [3.3]paracyclophane ring and weak CH···O hydrogen bonds between the substituents in the different rings was shown.
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Affiliation(s)
- Irena Majerz
- Faculty of Pharmacy, Wroclaw Medical University, Borowska 211a, 50-556, Wrocław, Poland.
| | - Teresa Dziembowska
- Department of Organic Chemistry, Faculty of Chemical Technology, West Pomeranian University of Technology, 70-061, Szczecin, Poland
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54
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Azizi A, Momen R, Kirk SR, Jenkins S. 3-D bond-paths of QTAIM and the stress tensor in neutral lithium clusters, Li m (m = 2-5), presented on the Ehrenfest force molecular graph. Phys Chem Chem Phys 2020; 22:864-877. [PMID: 31844863 DOI: 10.1039/c9cp05066c] [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
In this investigation we set out to understand the origins of non-nuclear attractors (NNAs) found for neutral lithium clusters Lim (m = 2-5) on the QTAIM molecular graph but not on the Ehrenfest force F(r) molecular graph. Therefore, we pursued the stress tensor σ(r) without using the dependency on the QTAIM partitioning, since previously σ(r) was only calculated within the QTAIM partitioning, to see if any indication of NNA character can be determined. Because the stress tensor σ(r) lacks an associated scalar- or vector-field as is the case for QTAIM and the Ehrenfest F(r) partitioning schemes respectively, a stress tensor σ(r) partitioning scheme cannot be constructed. Therefore, to overcome this difficulty we use next generation QTAIM, constructed from the most preferred directions of electronic charge density accumulation, to calculate the stress tensor σ(r) 3-D bond-paths on the Ehrenfest force F(r) molecular graph. Using next generation 3-D bond-paths within the Ehrenfest force F(r) partitioning, we can classify the degree of NNA character in the absence of NNAs. A much higher degree of NNA character is found to be present for the stress tensor σ(r) 3-D bond-paths than for the corresponding QTAIM or Ehrenfest force F(r) 3-D bond-paths. The stabilizing effect of the NNA is demonstrated by undertaking Li2 bond-path compression and stretching distortions sufficient to cause the annihilation of the NNA. The compression and stretching distortions also lead to a large increase in the 3-D bond-path asymmetry and persistent bond-path torsion respectively.
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Affiliation(s)
- Alireza Azizi
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research and Key Laboratory of Resource, National and Local Joint Engineering Laboratory for New Petro-chemical Materials and Fine Utilization of Resources, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha, Hunan 410081, China.
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55
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H5BW12O40-Catalyzed syntheses of 1,4-dihydropyridines and polyhydroquinolines via Hantzsch reaction: Joint experimental and computational studies. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2019.127011] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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56
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Sarkar S, Sruthi PK, Ramanathan N, Sundararajan K. Strong proton-shared hydrogen bonding in a methyl imidazole⋯HCl complex: evidence from matrix isolation infrared spectroscopy and ab initio computations. NEW J CHEM 2020. [DOI: 10.1039/d0nj00029a] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Evidence for proton-shared hydrogen bonding is provided in a methyl imidazole⋯HCl complex using matrix isolation infrared spectroscopy and ab initio computations.
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Affiliation(s)
- Shubhra Sarkar
- Materials Chemistry & Metal Fuel Cycle Group
- Homi Bhabha National Institute
- Indira Gandhi Center for Atomic Research
- Kalpakkam.603102
- India
| | - P. K. Sruthi
- Materials Chemistry & Metal Fuel Cycle Group
- Homi Bhabha National Institute
- Indira Gandhi Center for Atomic Research
- Kalpakkam.603102
- India
| | - N. Ramanathan
- Materials Chemistry & Metal Fuel Cycle Group
- Homi Bhabha National Institute
- Indira Gandhi Center for Atomic Research
- Kalpakkam.603102
- India
| | - K. Sundararajan
- Materials Chemistry & Metal Fuel Cycle Group
- Homi Bhabha National Institute
- Indira Gandhi Center for Atomic Research
- Kalpakkam.603102
- India
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57
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Ramanathan N, Sarkar S, Sundararajan K. Prototypical cyclohexane dimers: spectroscopic evidence for σ stacking at low temperatures. Phys Chem Chem Phys 2020; 22:905-913. [DOI: 10.1039/c9cp05237b] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
In this work, the first unambiguous spectroscopic evidence for the existence of σ stacking interactions in cyclohexane dimers has been provided using matrix isolation infrared spectroscopy.
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Affiliation(s)
- N. Ramanathan
- Materials Chemistry and Metal Fuel Cycle Group
- Homi Bhabha National Institute
- Indira Gandhi Centre for Atomic Research
- Kalpakkam 603 102
- India
| | - Shubhra Sarkar
- Materials Chemistry and Metal Fuel Cycle Group
- Homi Bhabha National Institute
- Indira Gandhi Centre for Atomic Research
- Kalpakkam 603 102
- India
| | - K. Sundararajan
- Materials Chemistry and Metal Fuel Cycle Group
- Homi Bhabha National Institute
- Indira Gandhi Centre for Atomic Research
- Kalpakkam 603 102
- India
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58
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Pantoja‐Hernández MA, Alemán‐Vilis JA, Sánchez A, Salas‐Reyes M, López‐Bonilla J, Matus MH, Domínguez Z. Effect of 1‐ethyl‐3‐methylimidazolium acetate on the oxidation of caffeic acid benzyl ester: An electrochemical and theoretical study. J PHYS ORG CHEM 2019. [DOI: 10.1002/poc.4044] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
| | - Josué A. Alemán‐Vilis
- Unidad de Servicios de Apoyo en Resolución AnalíticaUniversidad Veracruzana Xalapa Mexico
| | - Analilia Sánchez
- Unidad de Servicios de Apoyo en Resolución AnalíticaUniversidad Veracruzana Xalapa Mexico
| | - Magali Salas‐Reyes
- Unidad de Servicios de Apoyo en Resolución AnalíticaUniversidad Veracruzana Xalapa Mexico
| | - Judith López‐Bonilla
- Unidad de Servicios de Apoyo en Resolución AnalíticaUniversidad Veracruzana Xalapa Mexico
| | - Myrna H. Matus
- Unidad de Servicios de Apoyo en Resolución AnalíticaUniversidad Veracruzana Xalapa Mexico
| | - Zaira Domínguez
- Unidad de Servicios de Apoyo en Resolución AnalíticaUniversidad Veracruzana Xalapa Mexico
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59
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Regulating PdC3/PtC3···thiophene interaction by small molecule doping (AgOTf, CuBr, CuI, CuBr2, PdCl2). Struct Chem 2019. [DOI: 10.1007/s11224-019-01362-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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60
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Malcomson T, Azizi A, Momen R, Xu T, Kirk SR, Paterson MJ, Jenkins S. Stress Tensor Eigenvector Following with Next-Generation Quantum Theory of Atoms in Molecules: Excited State Photochemical Reaction Path from Benzene to Benzvalene. J Phys Chem A 2019; 123:8254-8264. [PMID: 31487180 DOI: 10.1021/acs.jpca.9b07519] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
In this investigation, we considered both the scalar and 3-D vector-based measures of bonding using next generation quantum theory of atoms in molecules (QTAIM), constructed from the preferred direction of electronic charge density accumulation, to better understand the photochemical reaction associated with of the formation of benzvalene from benzene. The formation of benzvalene from benzene resulted in two additional C-C bonds forming compared with the benzene. The creation of the additional C-C bonds was explained in terms of an increasing the favorability of the reaction process by maximizing the bonding density. The topological instability of the benzvalene structure was determined using the scalar and vector-based measures to explain the short chemical half-life of benzvalene in terms of the competition between the formation of unstable new C-C bonding that also destabilizes nearest neighbor C-C bonds. The explosive character of benzvalene is indicated by the unusual tendency of the C-C bonds to rupture as easily as weak bonding. The topological instability of the short strong C-C bonds was explained by the existence of measures from conventional and next generation QTAIM that previously have only been observed in weak interactions; such measures included twisted 3-D bonding descriptors.
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Affiliation(s)
- Thomas Malcomson
- Institute of Chemical Sciences, School of Engineering and Physical Sciences , Heriot-Watt University , Edinburgh , EH14 4AS , U.K
| | - Alireza Azizi
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research and Key Laboratory of Resource National and Local Joint Engineering Laboratory for New Petro-chemical Materials and Fine Utilization of Resources, College of Chemistry and Chemical Engineering , Hunan Normal University , Changsha , Hunan 410081 , China
| | - Roya Momen
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research and Key Laboratory of Resource National and Local Joint Engineering Laboratory for New Petro-chemical Materials and Fine Utilization of Resources, College of Chemistry and Chemical Engineering , Hunan Normal University , Changsha , Hunan 410081 , China
| | - Tianlv Xu
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research and Key Laboratory of Resource National and Local Joint Engineering Laboratory for New Petro-chemical Materials and Fine Utilization of Resources, College of Chemistry and Chemical Engineering , Hunan Normal University , Changsha , Hunan 410081 , China
| | - Steven R Kirk
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research and Key Laboratory of Resource National and Local Joint Engineering Laboratory for New Petro-chemical Materials and Fine Utilization of Resources, College of Chemistry and Chemical Engineering , Hunan Normal University , Changsha , Hunan 410081 , China
| | - Martin J Paterson
- Institute of Chemical Sciences, School of Engineering and Physical Sciences , Heriot-Watt University , Edinburgh , EH14 4AS , U.K
| | - Samantha Jenkins
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research and Key Laboratory of Resource National and Local Joint Engineering Laboratory for New Petro-chemical Materials and Fine Utilization of Resources, College of Chemistry and Chemical Engineering , Hunan Normal University , Changsha , Hunan 410081 , China
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61
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Wang L, Azizi A, Xu T, Kirk SR, Jenkins S. Explanation of the role of hydrogen bonding in the structural preferences of small molecule conformers. Chem Phys Lett 2019. [DOI: 10.1016/j.cplett.2019.06.015] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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62
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Bin X, Xu T, Kirk SR, Jenkins S. The directional bonding of [1.1.1]propellane with next generation QTAIM. Chem Phys Lett 2019. [DOI: 10.1016/j.cplett.2019.06.054] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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63
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Zhao F, Feng YJ, Liu YR, Jiang S, Huang T, Wang ZH, Xu CX, Huang W. Enhancement of Atmospheric Nucleation by Highly Oxygenated Organic Molecules: A Density Functional Theory Study. J Phys Chem A 2019; 123:5367-5377. [PMID: 31199633 DOI: 10.1021/acs.jpca.9b03142] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
New particle formation (NPF) by gas-particle conversion is the main source of atmospheric aerosols. Highly oxygenated organic molecules (HOMs) and sulfuric acid (SA) are important NPF participants. 2-Methylglyceric acid (MGA), a kind of HOMs, is a tracer of isoprene-derived secondary organic aerosols. The nucleation mechanisms of MGA with SA were studied using density functional theory and atmospheric cluster dynamics simulation in this study, along with that of MGA with methanesulfonic acid (MSA) as a comparison. Our theoretical works indicate that the (MGA)(SA) and (MGA)(MSA) clusters are the most stable ones in the (MGA) i(SA) j ( i = 1-2, j = 1-2) and (MGA) i(MSA) j ( i = 1-2, j = 1-2) clusters, respectively. Both the formation rates of (MGA)(SA) and (MGA)(MSA) clusters are quite large and could have significant contributions to NPF. The results imply that the homomolecular nucleation of MGA is unlikely to occur in the atmosphere, and MGA and SA can effectively contribute to heteromolecular nucleation mainly in the form of heterodimers. MSA exhibits properties similar to SA in its ability to form clusters with MGA but is slightly weaker than SA.
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Affiliation(s)
- Feng Zhao
- Laboratory of Atmospheric Physico-Chemistry, Anhui Institute of Optics & Fine Mechanics , Chinese Academy of Sciences , Hefei , Anhui 230031 , China.,School of Information Science and Technology , University of Science and Technology of China , Hefei , Anhui 230026 , China
| | - Ya-Juan Feng
- School of Information Science and Technology , University of Science and Technology of China , Hefei , Anhui 230026 , China
| | - Yi-Rong Liu
- School of Information Science and Technology , University of Science and Technology of China , Hefei , Anhui 230026 , China
| | - Shuai Jiang
- School of Information Science and Technology , University of Science and Technology of China , Hefei , Anhui 230026 , China
| | - Teng Huang
- Laboratory of Atmospheric Physico-Chemistry, Anhui Institute of Optics & Fine Mechanics , Chinese Academy of Sciences , Hefei , Anhui 230031 , China
| | - Zi-Hang Wang
- School of Information Science and Technology , University of Science and Technology of China , Hefei , Anhui 230026 , China
| | - Cai-Xin Xu
- School of Information Science and Technology , University of Science and Technology of China , Hefei , Anhui 230026 , China
| | - Wei Huang
- Laboratory of Atmospheric Physico-Chemistry, Anhui Institute of Optics & Fine Mechanics , Chinese Academy of Sciences , Hefei , Anhui 230031 , China.,School of Information Science and Technology , University of Science and Technology of China , Hefei , Anhui 230026 , China.,Center for Excellent in Urban Atmospheric Environment, Institute of Urban Environment , Chinese Academy of Sciences , Xiamen , Fujian 361021 , China
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64
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Bagherzade A, Nemati F, Nahzomi HT, Elhampour A. Experimental and quantum chemical study on nano-copper immobilized on magnetic graphitic carbon nitride core shell particles; a reusable heterogeneous catalyst toward reduction of nitro arenes. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2019.02.065] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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65
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Pourmohammad N, Heravi MM, Ahmadi S, Hosseinnejad T. In situ
preparation and characterization of novel CuI‐functionalized poly[(methyl methacrylate)‐
co
‐maleimide] as an efficient heterogeneous catalyst in the regioselective synthesis of 1,2,3‐triazoles via click reaction: Experimental and computational chemistry. Appl Organomet Chem 2019. [DOI: 10.1002/aoc.4967] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
| | - Majid M. Heravi
- Department of ChemistryAlzahra University PO Box 1993891176 Vanak Tehran Iran
| | - Shervin Ahmadi
- Department of Polymer ProcessingIran Polymer and Petrochemical Institute Tehran Iran
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66
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Kanouni KE, Benguerba Y, Erto A. Theoretical investigation of the solubility of some antiemetic drugs. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2019.03.028] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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67
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Jabłoński M. On the Uselessness of Bond Paths Linking Distant Atoms and on the Violation of the Concept of Privileged Exchange Channels. ChemistryOpen 2019; 8:497-507. [PMID: 31019875 PMCID: PMC6470636 DOI: 10.1002/open.201900109] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2019] [Indexed: 11/09/2022] Open
Abstract
We refer to frequently used determinants suggesting dominant interactions between distant atoms in various dimers. First of all, we show, against the still-prevailling opinion, that, in general, bond paths have nothing in common with dominant intermolecular interactions and therefore they are useless in such cases. Quite the contrary, reliable information about dominant intermolecular interactions can be obtained by means of electrostatic potential maps, which very convincingly explain mutual orientation of molecules in a dimer. For the first time, numerous examples of interactions that violate both the concept of privileged exchange channels proposed by Pendás and his collaborators as well as inequalities obtained by Tognetti and Joubert for the β parameter related to secondary interactions are presented. The possible cause of this violation is suggested. We also show that the so-called counterintuitive bond paths result from quite natural behavior of the electron density gradient vector, i. e. searching for those areas of space that are characterized by large values of electron density or the most expanded its distributions.
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Affiliation(s)
- Mirosław Jabłoński
- Department of Quantum Chemistry, Faculty of ChemistryNicolaus Copernicus University in Toruń7-Gagarina St.87-100ToruńPoland
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68
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Soliman SM, El-Faham A. Synthesis and structure diversity of high coordination number Cd(II) complexes of large s-triazine bis-Schiff base pincer chelate. Inorganica Chim Acta 2019. [DOI: 10.1016/j.ica.2019.01.018] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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69
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Sadjadi A, Abdzadeh M. Topological analysis and quantum mechanical structure of Hn+ clusters II. H5+ and H7+. JOURNAL OF CHEMICAL RESEARCH 2019. [DOI: 10.3184/0308234043431212] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Full typologocal and chemical features of H5+ and H7+ have been calculated at RHF/6-311G(3P) using AIM theory. The results have been compared with previous work on H3+.
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70
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Tian T, Xu T, Kirk SR, Filatov M, Jenkins S. Next-generation quantum theory of atoms in molecules for the ground and excited state of DHCL. Chem Phys Lett 2019. [DOI: 10.1016/j.cplett.2019.01.016] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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71
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Sruthi PK, Sarkar S, Ramanathan N, Sundararajan K. Elusive hypervalent phosphorus⋯π interactions: evidence for paradigm transformation from hydrogen to phosphorus bonding at low temperatures. Phys Chem Chem Phys 2019; 21:12250-12264. [DOI: 10.1039/c9cp01925a] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
A paradigm transformation from hydrogen to phosphorus bonding is found to depend on the proton affinity of the interacting π-systems.
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Affiliation(s)
- P. K. Sruthi
- Materials Chemistry and Metal Fuel Cycle Group
- Homi Bhabha National Institute
- Indira Gandhi Centre for Atomic Research
- Kalpakkam-603 102
- India
| | - Shubhra Sarkar
- Materials Chemistry and Metal Fuel Cycle Group
- Homi Bhabha National Institute
- Indira Gandhi Centre for Atomic Research
- Kalpakkam-603 102
- India
| | - N. Ramanathan
- Materials Chemistry and Metal Fuel Cycle Group
- Homi Bhabha National Institute
- Indira Gandhi Centre for Atomic Research
- Kalpakkam-603 102
- India
| | - K. Sundararajan
- Materials Chemistry and Metal Fuel Cycle Group
- Homi Bhabha National Institute
- Indira Gandhi Centre for Atomic Research
- Kalpakkam-603 102
- India
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72
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Lin H, Meng L, Li X, Zeng Y, Zhang X. Comparison of pnicogen and tetrel bonds in complexes containing CX2 carbenes (X = F, Cl, Br, OH, OMe, NH2, and NMe2). NEW J CHEM 2019. [DOI: 10.1039/c9nj03397a] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The similarities and differences of pnicogen and tetrel bonds formed by carbenes CX2 with H3AsO and H3SiCN were investigated by carrying out ab initio calculations in association with topological analysis of electron density.
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Affiliation(s)
- Hui Lin
- College of Chemistry and Material Science
- Hebei Normal University
- Shijiazhuang
- P. R. China
| | - Lingpeng Meng
- College of Chemistry and Material Science
- Hebei Normal University
- Shijiazhuang
- P. R. China
- National Demonstration Center for Experimental Chemistry
| | - Xiaoyan Li
- College of Chemistry and Material Science
- Hebei Normal University
- Shijiazhuang
- P. R. China
- National Demonstration Center for Experimental Chemistry
| | - Yanli Zeng
- College of Chemistry and Material Science
- Hebei Normal University
- Shijiazhuang
- P. R. China
- National Demonstration Center for Experimental Chemistry
| | - Xueying Zhang
- College of Chemistry and Material Science
- Hebei Normal University
- Shijiazhuang
- P. R. China
- National Demonstration Center for Experimental Chemistry
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73
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Zhang B, Fan X, Zhao D. Computer-Aided Design of Molecularly Imprinted Polymers for Simultaneous Detection of Clenbuterol and Its Metabolites. Polymers (Basel) 2018; 11:E17. [PMID: 30960001 PMCID: PMC6401812 DOI: 10.3390/polym11010017] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2018] [Revised: 12/15/2018] [Accepted: 12/19/2018] [Indexed: 12/29/2022] Open
Abstract
Molecular imprinting technology (MIT) offers an effective technique for efficient separation and enrichment of specific analytes from complicated matrices and has been used for illicit veterinary drug detectionin recent years due to its high selectivity, good chemical stability, and simple preparation. The development of in silico-based approaches has enabled the simulation of molecularly imprinted polymers (MIPs) to facilitate the selection of imprinting conditions such as template, functional monomer, and the best suitable solvent. In this work, using density functional theory (DFT), the molecularly imprinted polymers of clenbuterol and its metabolites were designed by computer-aided at B3LYP/6-31 + G (d, p) level. Screening molecular imprinting components such as functional monomers, cross-linkers, and solvents has been achieved in the computational simulation considerations. The simulation results showed that methacrylic acid (MAA) is the best functional monomer; the optimal imprinting ratio for both clenbuterol (CLB) and its dummy template molecule of phenylephrine (PE) to functional monomer is 1:3, while the optimal imprinting ratio for the two dummy template molecules of CLB's metabolites is 1:5. Choosin gethyleneglycol dimethacrylate (EDGMA) as a crosslinker and aprotic solvents could increase the selectivity of the molecularly imprinted system. Atoms in Molecules (AIM) topology analysis was applied to investigate the template-monomer complexes bonding situation and helped to explain the nature of the reaction in the imprinting process. These theoretical predictions were also verified by the experimental results and found to be in good agreement with the computational results. The computer-simulated imprinting process compensates for the lack of clarity in the mechanism of the molecular imprinting process, and provides an important reference and direction for developing better recognition pattern towards CLB and its metabolite analytes in swine urine samples at the same time.
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Affiliation(s)
- Bingcheng Zhang
- Department of Food Science and Technology, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, China.
| | - Xin Fan
- Department of Food Science and Technology, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, China.
| | - Dayun Zhao
- Department of Food Science and Technology, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, China.
- Bor S. Luh Food Safety Research Center, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China.
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74
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Pushkarevsky NA, Chulanova EA, Shundrin LA, Smolentsev AI, Salnikov GE, Pritchina EA, Genaev AM, Irtegova IG, Bagryanskaya IY, Konchenko SN, Gritsan NP, Beckmann J, Zibarev AV. Radical Anions, Radical‐Anion Salts, and Anionic Complexes of 2,1,3‐Benzochalcogenadiazoles. Chemistry 2018; 25:806-816. [PMID: 30084508 DOI: 10.1002/chem.201803465] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2018] [Revised: 08/06/2018] [Indexed: 12/21/2022]
Affiliation(s)
- Nikolay A. Pushkarevsky
- Institute of Inorganic ChemistrySiberian BranchRussian Academy of Sciences 630090 Novosibirsk Russia
- Department of Natural SciencesNovosibirsk State University. 630090 Novosibirsk Russia
| | - Elena A. Chulanova
- Department of Natural SciencesNovosibirsk State University. 630090 Novosibirsk Russia
- Institute of Organic ChemistrySiberian BranchRussian Academy of Sciences 630090 Novosibirsk Russia
| | - Leonid A. Shundrin
- Department of Natural SciencesNovosibirsk State University. 630090 Novosibirsk Russia
- Institute of Organic ChemistrySiberian BranchRussian Academy of Sciences 630090 Novosibirsk Russia
| | - Anton I. Smolentsev
- Institute of Inorganic ChemistrySiberian BranchRussian Academy of Sciences 630090 Novosibirsk Russia
| | - Georgy E. Salnikov
- Department of Natural SciencesNovosibirsk State University. 630090 Novosibirsk Russia
- Institute of Organic ChemistrySiberian BranchRussian Academy of Sciences 630090 Novosibirsk Russia
| | - Elena A. Pritchina
- Department of Natural SciencesNovosibirsk State University. 630090 Novosibirsk Russia
- Institute of Chemical Kinetics and CombustionSiberian BranchRussian Academy of Sciences 630090 Novosibirsk Russia
| | - Alexander M. Genaev
- Institute of Organic ChemistrySiberian BranchRussian Academy of Sciences 630090 Novosibirsk Russia
| | - Irina G. Irtegova
- Institute of Organic ChemistrySiberian BranchRussian Academy of Sciences 630090 Novosibirsk Russia
| | - Irina Yu. Bagryanskaya
- Department of Natural SciencesNovosibirsk State University. 630090 Novosibirsk Russia
- Institute of Organic ChemistrySiberian BranchRussian Academy of Sciences 630090 Novosibirsk Russia
| | - Sergey N. Konchenko
- Institute of Inorganic ChemistrySiberian BranchRussian Academy of Sciences 630090 Novosibirsk Russia
- Department of Natural SciencesNovosibirsk State University. 630090 Novosibirsk Russia
- Department of PhysicsNovosibirsk State University 630090 Novosibirsk Russia
| | - Nina P. Gritsan
- Institute of Chemical Kinetics and CombustionSiberian BranchRussian Academy of Sciences 630090 Novosibirsk Russia
- Department of PhysicsNovosibirsk State University 630090 Novosibirsk Russia
| | - Jens Beckmann
- Institute for Inorganic Chemistry and CrystallographyUniversity of Bremen 28359 Bremen Germany
| | - Andrey V. Zibarev
- Institute of Organic ChemistrySiberian BranchRussian Academy of Sciences 630090 Novosibirsk Russia
- Department of PhysicsNovosibirsk State University 630090 Novosibirsk Russia
- Department of ChemistryTomsk State University 634050 Tomsk Russia
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75
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QTAIM and stress tensor bond-path framework sets for the ground and excited states of fulvene. Chem Phys Lett 2018. [DOI: 10.1016/j.cplett.2018.10.029] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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76
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Cu2O modified g-C3N4 as an effective catalyst for the synthesis of propargylamines: experimental, quantum mechanical mechanistic and kinetic study. REACTION KINETICS MECHANISMS AND CATALYSIS 2018. [DOI: 10.1007/s11144-018-1491-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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77
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DFT computations on surface physical adsorption of hydrocarbons produced in the Fischer-Tropsch synthesis on a CNT/Co nanocatalyst. JOURNAL OF SAUDI CHEMICAL SOCIETY 2018. [DOI: 10.1016/j.jscs.2018.01.001] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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78
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da Silva RS, Ballester MY. A theoretical study of energy transfer in Ar( 1S) + SO 2( X ̃ 1 A ') collisions: Cross sections and rate coefficients for vibrational transitions. J Chem Phys 2018; 149:144309. [PMID: 30316261 DOI: 10.1063/1.5051349] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Vibrational transitions, induced by collisions between rare-gas atoms and molecules, play a key role in many problems of interest in physics and chemistry. A theoretical investigation of the translation-to-vibration (T-V) energy transfer process in argon atom and sulfur dioxide molecule collisions is presented here. For such a purpose, the framework of the quasi-classical trajectory (QCT) methodology was followed over the range of translational energies 2 ≤ Etr/kcal mol-1 ≤ 100. A new realistic potential energy surface (PES) for the ArSO2 system was developed using pairwise addition for the four-body energy term within the double many-body expansion. The topological features of the obtained function are compared with a previous one reported by Hippler et al. [J. Phys. Chem. 90, 6158 (1986)]. To test the accuracy of the PES, additional coupled cluster singles and doubles method with a perturbative contribution of connected triples calculations were carried out for the global minimum configuration. From dynamical calculations, the cross sections for the T-V excitation process indicate a barrier-type mechanism due to strong repulsive interactions between SO2 molecules and the Ar atom. Corrections to zero-point energy leakage in QCT were carried out using vibrational energy quantum mechanical threshold of the complex and variations. Rate coefficients and cross sections are calculated for some vibrational transitions using pseudo-quantization approaches of the vibrational energy of products. Main attributes of the title molecular collision are discussed and compared with available information in the literature.
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Affiliation(s)
- Ramon S da Silva
- Departamento de Física, Universidade Federal de Juiz de Fora, Juiz de Fora, MG 36036-330, Brazil
| | - Maikel Y Ballester
- Departamento de Física, Universidade Federal de Juiz de Fora, Juiz de Fora, MG 36036-330, Brazil
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79
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Jabłoński M. Bond paths between distant atoms do not necessarily indicate dominant interactions. J Comput Chem 2018; 39:2183-2195. [PMID: 30298926 DOI: 10.1002/jcc.25532] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2018] [Revised: 06/27/2018] [Accepted: 06/27/2018] [Indexed: 12/16/2022]
Abstract
The goal of the article is to revive discussion on the interpretation of bond paths linking distant atoms, particularly tracing weak interactions in dimers. According to the Pendás' concept of privileged exchange channel, a bond path is formed between this pair of competing atoms, which is associated with larger value of the exchange energy. We point out that, due to the short-range nature of the exchange energy, bond paths linking distant atoms clearly become doubtful indicators of dominant intermolecular interactions, particularly if some other characteristics (geometric, spectroscopic, based on electrostatic parameters, etc.) indicate other intermolecular interactions as dominant. Several such cases are thoroughly investigated. We show that electrostatic parameters are much more reliable indicators of dominant intermolecular interactions than bond paths. Then, we pay attention that the presence of ("unexpected", i.e., not necessarily indicating dominant intermolecular interactions) bond paths between pairs of atoms featuring highly expanded charge distributions can be easily explained by visual exploration of isodensity contour plots. As always pointing in the direction of the steepest increase, the gradient vector of the electron density favors areas of its high values gaining higher exchange energy, yet being blind to highly electron deficient areas nearby, which, however, can quite often be involved in dominant intermolecular interactions as strongly suggested by many other bonding analysis. We also suggest that an interatomic component of Hellmann-Feynman force would most likely be the most reliable indicator of attractive or repulsive character of individual interatomic interaction. © 2018 Wiley Periodicals, Inc.
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Affiliation(s)
- Mirosław Jabłoński
- Department of Quantum Chemistry, Faculty of Chemistry, Nicolaus Copernicus University in Toruń, 7-Gagarina Street, 87-100, Toruń, Poland
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80
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Huang WJ, Xu T, Kirk SR, Jenkins S. The 3-D bonding morphology of the infra-red active normal modes of benzene. Chem Phys Lett 2018. [DOI: 10.1016/j.cplett.2018.08.059] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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81
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Synthesis, X-ray structure, DFT and antimicrobial studies of Ag(I) complexes with nicotinic acid derivatives. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2018; 187:48-53. [DOI: 10.1016/j.jphotobiol.2018.07.029] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2018] [Revised: 06/18/2018] [Accepted: 07/29/2018] [Indexed: 01/21/2023]
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82
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Razmazma H, Ebrahimi A. The effects of cation–π and anion–π interactions on halogen bonds in the [N⋯X⋯N]+ complexes: A comprehensive theoretical study. J Mol Graph Model 2018; 84:134-144. [DOI: 10.1016/j.jmgm.2018.06.006] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2018] [Revised: 05/20/2018] [Accepted: 06/07/2018] [Indexed: 01/15/2023]
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83
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Neto APV, Machado DFS, Lopes TO, Camargo AJ, de Oliveira HCB. Explicit Aqueous Solvation Treatment of Epinephrine from Car–Parrinello Molecular Dynamics: Effect of Hydrogen Bonding on the Electronic Absorption Spectrum. J Phys Chem B 2018; 122:8439-8450. [DOI: 10.1021/acs.jpcb.8b06110] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Arsênio P. V. Neto
- Laboratório de Estrutura Eletrônica e Dinâmica Molecular (LEEDMOL), Instituto de Química, Universidade Federal de Goiás, 70904-970 Brasília, DF, Brazil
| | - Daniel F. Scalabrini Machado
- Laboratório de Estrutura Eletrônica e Dinâmica Molecular (LEEDMOL), Instituto de Química, Universidade Federal de Goiás, 70904-970 Brasília, DF, Brazil
| | - Thiago O. Lopes
- Laboratório de Estrutura Eletrônica e Dinâmica Molecular (LEEDMOL), Instituto de Química, Universidade Federal de Goiás, 70904-970 Brasília, DF, Brazil
| | - Ademir J. Camargo
- Grupo de Química Teórica de Anápolis (GQTEA), Universidade Estadual de Goiás, 75132-903 Anápolis, Goiás, Brazil
| | - Heibbe C. B. de Oliveira
- Laboratório de Estrutura Eletrônica e Dinâmica Molecular (LEEDMOL), Instituto de Química, Universidade Federal de Goiás, 70904-970 Brasília, DF, Brazil
- Laboratório de Estrutura Eletrônica e Dinâmica Molecular (LEEDMOL), Instituto de Química, Universidade de Brasília, 74690-900 Goiânia, Goiás, Brazil
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84
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Semenov NA, Gorbunov DE, Shakhova MV, Salnikov GE, Bagryanskaya IY, Korolev VV, Beckmann J, Gritsan NP, Zibarev AV. Donor-Acceptor Complexes between 1,2,5-Chalcogenadiazoles (Te, Se, S) and the Pseudohalides CN - and XCN - (X=O, S, Se, Te). Chemistry 2018; 24:12983-12991. [PMID: 29882626 DOI: 10.1002/chem.201802257] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2018] [Indexed: 11/07/2022]
Abstract
Donor-acceptor (D-A) complexes between 3,4-dicyano-1,2,5-chalcogenadiazoles [chalcogen=Te (1 a), Se (1 b), S (1 c)] and the pseudohalides CN- and XCN- (X=O, S, Se, Te) were studied experimentally and theoretically. For 1 a, they were isolated as [K(18-crown-6)][1 a-CN] (2), [K(18-crown-6)][1 a-NCO] (3), [K(18-crown-6)][1 a-SCN] (4), [K(18-crown-6)][1 a-SeCN] (5), and [K][1 a-NCSe] (6) and characterized by X-ray diffraction (XRD), UV/Vis and NMR spectroscopy, and DFT and QTAIM calculations. For 1 b and 1 c, the complexes were not isolated due to unfavorable thermodynamics. In all isolated complexes, the D-A bonds, stabilized by negative hyperconjugation, were longer than the sum of the covalent radii and shorter than the sum of the van der Waals radii of the bonded atoms. In mixtures of 1 a, F- , and SeCN- , the complex [1 a-F]- was selectively formed in accordance with thermodynamics. The reaction of 1 a with SeCN- and the cyclic trimeric perfluoro-ortho-phenylene mercury afforded the complex [K(18-crown-6)][SCN]⋅(o-C6 F4 Hg)3 , which was characterized by XRD.
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Affiliation(s)
- Nikolay A Semenov
- Institute of Organic Chemistry, Siberian Branch, Russian Academy of Sciences, 630090, Novosibirsk, Russia
| | - Dmitry E Gorbunov
- Institute of Chemical Kinetics and Combustion, Siberian Branch, Russian Academy of Sciences, 630090, Novosibirsk, Russia.,Department of Physics, Novosibirsk State University, 630090, Novosibirsk, Russia
| | - Margarita V Shakhova
- Institute of Chemical Kinetics and Combustion, Siberian Branch, Russian Academy of Sciences, 630090, Novosibirsk, Russia.,Department of Physics, Novosibirsk State University, 630090, Novosibirsk, Russia
| | - Georgy E Salnikov
- Institute of Organic Chemistry, Siberian Branch, Russian Academy of Sciences, 630090, Novosibirsk, Russia.,Department of Natural Sciences, Novosibirsk State University, 630090, Novosibirsk, Russia
| | - Irina Y Bagryanskaya
- Institute of Organic Chemistry, Siberian Branch, Russian Academy of Sciences, 630090, Novosibirsk, Russia
| | - Valery V Korolev
- Institute of Chemical Kinetics and Combustion, Siberian Branch, Russian Academy of Sciences, 630090, Novosibirsk, Russia
| | - Jens Beckmann
- Institute for Inorganic Chemistry and Crystallography, University of Bremen, 28359, Bremen, Germany
| | - Nina P Gritsan
- Institute of Chemical Kinetics and Combustion, Siberian Branch, Russian Academy of Sciences, 630090, Novosibirsk, Russia.,Department of Physics, Novosibirsk State University, 630090, Novosibirsk, Russia
| | - Andrey V Zibarev
- Institute of Organic Chemistry, Siberian Branch, Russian Academy of Sciences, 630090, Novosibirsk, Russia.,Department of Physics, Novosibirsk State University, 630090, Novosibirsk, Russia.,Department of Chemistry, Tomsk State University, 643050, Tomsk, Russia
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85
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Soliman SM, El-Faham A, Elsilk SE, Farooq M. Two heptacoordinated manganese(II) complexes of giant pentadentate s -triazine bis -Schiff base ligand: Synthesis, crystal structure, biological and DFT studies. Inorganica Chim Acta 2018. [DOI: 10.1016/j.ica.2018.04.043] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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86
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One pot synthesis of two Mn(II) perchlorate complexes with s -triazine NNN -pincer ligand; molecular structure, Hirshfeld analysis and DFT studies. J Mol Struct 2018. [DOI: 10.1016/j.molstruc.2018.03.037] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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87
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Li J, Huang W, Xu T, Kirk SR, Jenkins S. A vector-based representation of the chemical bond for the substituted torsion of biphenyl. Chem Phys Lett 2018. [DOI: 10.1016/j.cplett.2018.04.059] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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88
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An investigation about the structures, thermodynamics and kinetics of the formic acid involved molecular clusters. Chem Phys 2018. [DOI: 10.1016/j.chemphys.2018.03.029] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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89
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Dang Y, Wang W, Meng L, Li Q, Li X. Nature of MoH···I bonds in Cp 2
Mo(L)H···I-C≡C-R Complexes (L=H, CN, PPh 2
, C(CH 3
) 3
; R=NO 2
, Cl, Br, H, OH, CH 3
, NH 2
). Appl Organomet Chem 2018. [DOI: 10.1002/aoc.4258] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Yaru Dang
- College of Chemistry and Material Science; Hebei Normal University; Road East of 2nd Ring South Shijiazhuang 050024 China
| | - Weihua Wang
- College of Chemistry and Material Science; Hebei Normal University; Road East of 2nd Ring South Shijiazhuang 050024 China
| | - Lingpeng Meng
- National Demonstratin Center for Experimental Chemistry; Hebei Normal University; Road East of 2nd Ring South Shijiazhuang 050024 China
| | - Qingzhong Li
- China Science and Engineering College of Chemistry and Biology; Yantai University; Yantai 264005 China
| | - Xiaoyan Li
- College of Chemistry and Material Science; Hebei Normal University; Road East of 2nd Ring South Shijiazhuang 050024 China
- National Demonstratin Center for Experimental Chemistry; Hebei Normal University; Road East of 2nd Ring South Shijiazhuang 050024 China
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90
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Sabaqian S, Nemati F, Nahzomi HT, Heravi MM. Silver(I) dithiocarbamate on modified magnetic cellulose: Synthesis, density functional theory study and application. Carbohydr Polym 2018; 184:221-230. [DOI: 10.1016/j.carbpol.2017.12.045] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2017] [Revised: 12/14/2017] [Accepted: 12/14/2017] [Indexed: 01/20/2023]
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91
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Sarkar S, Ramanathan N, Sundararajan K. Effect of Methyl Substitution on the N–H···O Interaction in Complexes of Pyrrole with Water, Methanol, and Dimethyl Ether: Matrix Isolation Infrared Spectroscopy and ab Initio Computational Studies. J Phys Chem A 2018; 122:2445-2460. [DOI: 10.1021/acs.jpca.8b00023] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Shubhra Sarkar
- Materials Chemistry and Metal Fuel Cycle Group, Indira Gandhi Centre for Atomic Research, Kalpakkam 603 102, India
- Homi Bhabha National Institute, Kalpakkam 603 102, India
| | - N. Ramanathan
- Materials Chemistry and Metal Fuel Cycle Group, Indira Gandhi Centre for Atomic Research, Kalpakkam 603 102, India
- Homi Bhabha National Institute, Kalpakkam 603 102, India
| | - K. Sundararajan
- Materials Chemistry and Metal Fuel Cycle Group, Indira Gandhi Centre for Atomic Research, Kalpakkam 603 102, India
- Homi Bhabha National Institute, Kalpakkam 603 102, India
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92
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Jiang X, Tsona NT, Tang S, Du L. Hydrogen bond docking preference in furans: OH⋯π vs. OH⋯O. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2018; 191:155-164. [PMID: 29028507 DOI: 10.1016/j.saa.2017.10.006] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2017] [Revised: 09/23/2017] [Accepted: 10/01/2017] [Indexed: 05/15/2023]
Abstract
The docking sites of hydrogen bonds in complexes formed between 2,2,2-trifluoroethanol (TFE), furan (Fu), and 2-methyl furan (MF) have been investigated. Using density functional theory (DFT) calculations, gas phase and matrix isolation FTIR spectroscopies, the strengths of OH⋯O and OH⋯π hydrogen bonds in the complexes were compared to find the docking preference. Calculations suggest that the hydrogen bond donor, TFE, is more likely to dock onto the oxygen atom of the aromatic furans ring, and consequently, the OH⋯O type hydrogen bond is relatively stronger than the OH⋯π type. The FTIR spectrum in the OH-stretching fundamental range obtained at room temperatures has been compared with that obtained at extremely low temperatures in the matrix. The fundamental and the red shifts of OH-stretching vibrations were observed in both FTIR spectra, confirming the formation of hydrogen bonded complexes. By assessing the ability of furan and MF to participate in the formation of OH⋯O hydrogen bond, the effect of ring methylation has been highlighted. From the calculated geometric and thermodynamic parameters as well as the frequency shift of the OH-stretching vibrations in complexes, TFE-MF is found to be more stable than TFE-Fu, which suggests that the strength of the OH⋯O hydrogen bond in TFE-MF originates from the high activity of the furan molecule caused by the methylation of the aromatic ring. The present study furthers the knowledge of docking preference in heteroaromatic molecules and is helpful to understand the nature of intermolecular interactions between hydrogen bond donors and acceptors, including both electron-deficient atoms and π cloud.
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Affiliation(s)
- Xiaotong Jiang
- Environment Research Institute, Shandong University, Shanda South Road 27, 250100, Shandong, China
| | - Narcisse T Tsona
- Environment Research Institute, Shandong University, Shanda South Road 27, 250100, Shandong, China
| | - Shanshan Tang
- Environment Research Institute, Shandong University, Shanda South Road 27, 250100, Shandong, China
| | - Lin Du
- Environment Research Institute, Shandong University, Shanda South Road 27, 250100, Shandong, China.
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93
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Verma K, Viswanathan KS. “A Tale of Two Structures”: The Stacks and Ts of Borazine and Benzene Hetero and Homo Dimers. ChemistrySelect 2018. [DOI: 10.1002/slct.201703005] [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)
- Kanupriya Verma
- Indian Institute of Science Education & Research Sector 81, Knowledge City Mohali 140306 Punjab India
| | - K. S. Viswanathan
- Indian Institute of Science Education & Research Sector 81, Knowledge City Mohali 140306 Punjab India
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94
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Han YJ, Feng YJ, Miao SK, Jiang S, Liu YR, Wang CY, Chen J, Wang ZQ, Huang T, Li J, Huang W. Hydration of 3-hydroxy-4,4-dimethylglutaric acid with dimethylamine complex and its atmospheric implications. Phys Chem Chem Phys 2018; 20:25780-25791. [DOI: 10.1039/c8cp04029j] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Changes in temperature affects the distribution of isomers, which facilitates the understanding of new particle formation in the atmosphere.
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95
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Mohanty B, Venkataramanan NS. Tetracyclo(9-methyl-2,7-carbazole) as a promising nanohoop for gas trapping: a multiscale study. NEW J CHEM 2018. [DOI: 10.1039/c8nj04726j] [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
H2S, CS2, NO2, Br2, HF, and C2H6 are the ideal adsorbates within the TCC host from their respective congeners.
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Affiliation(s)
- Biswajit Mohanty
- School of Chemistry and Biotechnology
- SASTRA Deemed University
- Thanjavur
- India
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96
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Miao SK, Jiang S, Peng XQ, Liu YR, Feng YJ, Wang YB, Zhao F, Huang T, Huang W. Hydration of the methanesulfonate–ammonia/amine complex and its atmospheric implications. RSC Adv 2018; 8:3250-3263. [PMID: 35541186 PMCID: PMC9077587 DOI: 10.1039/c7ra12064h] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2017] [Accepted: 12/28/2017] [Indexed: 11/30/2022] Open
Abstract
Methanesulfonate (MSA−), found in substantial concentrations in the atmosphere, is expected to enhance aerosol nucleation and the growth of nanoparticles, but the details of methanesulfonate clusters are poorly understood. In this study, MSA− was chosen along with ammonia (NH3) or three common amines and water (H2O) to discuss the roles of ternary homogeneous nucleation and ion-induced nucleation in aerosol formation. We studied the structural characteristics and thermodynamics of the clusters using density functional theory at the PW91PW91/6-311++G(3df,3pd) level. The analysis of noncovalent interactions predicts that the amines can form more stable clusters with MSA− than NH3, in agreement with the results from structures and thermodynamics; however, the enhancement in stability for amines is not large enough to overcome the difference in the concentrations of NH3 and amines under typical atmospheric conditions. In addition, the favorable free energies of formation for the (MSA−)(NH3/amines)(H2O)n (n = 0–3) clusters at 298.15 K show that MSA− could contribute to the aerosol nucleation process with binding NH3/amines and H2O up to n = 3. There are strong temperature and humidity dependences for the formation of complexes; higher humidity and temperature promote the formation of larger hydrates. Finally, for the (MSA−)(NH3/amines)(H2O)n clusters, the evaporation rates were determined to further investigate the atmospheric implications. Methanesulfonate (MSA−), found in substantial concentrations in the atmosphere, is expected to enhance aerosol nucleation and the growth of nanoparticles, but the details of methanesulfonate clusters are poorly understood.![]()
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Affiliation(s)
- Shou-Kui Miao
- Laboratory of Atmospheric Physico-Chemistry
- Anhui Institute of Optics & Fine Mechanics
- Chinese Academy of Sciences
- Hefei
- China
| | - Shuai Jiang
- School of Information Science and Technology
- University of Science and Technology of China
- Hefei
- China
| | - Xiu-Qiu Peng
- Laboratory of Atmospheric Physico-Chemistry
- Anhui Institute of Optics & Fine Mechanics
- Chinese Academy of Sciences
- Hefei
- China
| | - Yi-Rong Liu
- School of Information Science and Technology
- University of Science and Technology of China
- Hefei
- China
| | - Ya-Juan Feng
- School of Information Science and Technology
- University of Science and Technology of China
- Hefei
- China
| | - Yan-Bing Wang
- Laboratory of Atmospheric Physico-Chemistry
- Anhui Institute of Optics & Fine Mechanics
- Chinese Academy of Sciences
- Hefei
- China
| | - Feng Zhao
- Laboratory of Atmospheric Physico-Chemistry
- Anhui Institute of Optics & Fine Mechanics
- Chinese Academy of Sciences
- Hefei
- China
| | - Teng Huang
- Laboratory of Atmospheric Physico-Chemistry
- Anhui Institute of Optics & Fine Mechanics
- Chinese Academy of Sciences
- Hefei
- China
| | - Wei Huang
- Laboratory of Atmospheric Physico-Chemistry
- Anhui Institute of Optics & Fine Mechanics
- Chinese Academy of Sciences
- Hefei
- China
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97
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Sabaqian S, Nemati F, Nahzomi HT, Heravi MM. Palladium acetate supported on amidoxime-functionalized magnetic cellulose: Synthesis, DFT study and application in Suzuki reaction. Carbohydr Polym 2017; 177:165-177. [DOI: 10.1016/j.carbpol.2017.08.109] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2017] [Revised: 07/29/2017] [Accepted: 08/24/2017] [Indexed: 12/01/2022]
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98
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Sarkar S, Ramanathan N, Gopi R, Sundararajan K. Pyrrole multimers and pyrrole-acetylene hydrogen bonded complexes studied in N2 and para-H2 matrixes using matrix isolation infrared spectroscopy and ab initio computations. J Mol Struct 2017. [DOI: 10.1016/j.molstruc.2017.07.110] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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99
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Ramanathan N, Sankaran K, Sundararajan K. Nitrogen: A New Class of π-Bonding Partner in Hetero π-Stacking Interaction. J Phys Chem A 2017; 121:9081-9091. [DOI: 10.1021/acs.jpca.7b08164] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- N. Ramanathan
- Materials Chemistry & Metal Fuel Cycle Group, ‡Homi Bhabha National Institute, Indira Gandhi Center for Atomic Research, Kalpakkam 603102, Tamil Nadu, India
| | - K. Sankaran
- Materials Chemistry & Metal Fuel Cycle Group, ‡Homi Bhabha National Institute, Indira Gandhi Center for Atomic Research, Kalpakkam 603102, Tamil Nadu, India
| | - K. Sundararajan
- Materials Chemistry & Metal Fuel Cycle Group, ‡Homi Bhabha National Institute, Indira Gandhi Center for Atomic Research, Kalpakkam 603102, Tamil Nadu, India
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100
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Exploring the regioselectivity in the cycloaddition of azides to alkynes catalyzed by dinuclear copper clusters (Cu2AAC reaction) using the topologies of ∇2 ρ (r) and ∇∇2 ρ (r). J Mol Model 2017; 23:337. [DOI: 10.1007/s00894-017-3500-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2016] [Accepted: 10/10/2017] [Indexed: 10/18/2022]
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