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Constrained Molecular Dynamic Simulation of the Potential Mean Force of Lithium Bromide Ion Pairs in Acetonitrile. ATOMS 2021. [DOI: 10.3390/atoms9030057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Molecular dynamic simulations of Li+, and Br− ions in acetonitrile were carried out. The simulated structural properties were compared to experimental data. The solvent potentials of Li+-Br−, Li+-Li+, and Br−-Br− were evaluated using constrained molecular dynamics (CMD) simulations, to determine the solvent contribution to the total force acting on the solute and estimate the liquid arrangements according to the potential of mean force (PMF) values. The PMF of friction kernels and the passage across the Li+-Br− barrier was studied using the Grote–Hynes theory. The union-separation development happens in the polarization confining system.
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Erkabaev AM, Yaroslavtseva TV, Reznitskikh OG, Bushkova OV. Solvation of anions in acetonitrile solutions: FTIR and quantum chemical study for Br -, ClO 4-, AsF 6-, and CF 3SO 3. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2020; 229:117873. [PMID: 31813727 DOI: 10.1016/j.saa.2019.117873] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/19/2019] [Revised: 11/27/2019] [Accepted: 11/27/2019] [Indexed: 06/10/2023]
Abstract
Anion solvation in acetonitrile solutions was comparatively studied using FTIR spectroscopy and quantum chemical calculations at the RTF + MP2/6-311G** level of theory with solvation model density (SMD) corrections. Infrared spectra for all stable anionic complexes X-(CH3CN)n (where X- = Br- (monatomic halide), ClO4- (polyatomic tetrahedral), AsF6- (polyatomic octahedral), CF3SO3- (polyatomic ethane-like) and n = 1-8) were calculated and subsequently used in the analysis of the FTIR spectra of (Bu4N)X and LiX acetonitrile solutions across a wide range of concentrations. Spectroscopic manifestations of solvation were established for all X- examined. The results for all four anions under investigation were generalized to reveal the regularities of anion solvation by acetonitrile.
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Affiliation(s)
- Alexander M Erkabaev
- Institute of Solid State Chemistry UB RAS, Pervomaiskaya st., 91, Ekaterinburg 620990, Russia
| | - Tatyana V Yaroslavtseva
- Institute of Solid State Chemistry UB RAS, Pervomaiskaya st., 91, Ekaterinburg 620990, Russia
| | - Olga G Reznitskikh
- Institute of Solid State Chemistry UB RAS, Pervomaiskaya st., 91, Ekaterinburg 620990, Russia
| | - Olga V Bushkova
- Institute of Solid State Chemistry UB RAS, Pervomaiskaya st., 91, Ekaterinburg 620990, Russia; NTI Competence Center for New and Mobile Power Sources Technologies of the Institute of Problems of Chemical Physics RAS, Academician Semenov av. 1, Chernogolovka, Moscow region 142432, Russia.
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Humphreys EK, Allan PK, Welbourn RJL, Youngs TGA, Soper AK, Grey CP, Clarke SM. A Neutron Diffraction Study of the Electrochemical Double Layer Capacitor Electrolyte Tetrapropylammonium Bromide in Acetonitrile. J Phys Chem B 2015; 119:15320-33. [DOI: 10.1021/acs.jpcb.5b08248] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Elizabeth K. Humphreys
- Department
of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, United Kingdom
| | - Phoebe K. Allan
- Department
of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, United Kingdom
- Gonville and Caius College, Trinity
Street, Cambridge CB2 1TA, United Kingdom
| | - Rebecca J. L. Welbourn
- Department
of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, United Kingdom
- BP Institute, University of Cambridge, Madingley Road, Cambridge CB3 0EZ, United Kingdom
| | - Tristan G. A. Youngs
- ISIS Facility, STFC Rutherford Appleton Laboratory, Harwell Oxford, Didcot, OX11 0QX, United Kingdom
| | - Alan K. Soper
- ISIS Facility, STFC Rutherford Appleton Laboratory, Harwell Oxford, Didcot, OX11 0QX, United Kingdom
| | - Clare P. Grey
- Department
of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, United Kingdom
| | - Stuart M. Clarke
- Department
of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, United Kingdom
- BP Institute, University of Cambridge, Madingley Road, Cambridge CB3 0EZ, United Kingdom
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Provost K, Beret EC, Bouvet Muller D, Michalowicz A, Sánchez Marcos E. EXAFS Debye-Waller factors issued from Car-Parrinello molecular dynamics: Application to the fit of oxaliplatin and derivatives. J Chem Phys 2013; 138:084303. [DOI: 10.1063/1.4790516] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- K Provost
- ICMPE, UMR 7182 CNRS, UPEC, PRES Paris Est, Thiais 94320, France.
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Beret EC, Provost K, Müller D, Marcos ES. Coupling CP-MD Simulations and X-ray Absorption Spectroscopy: Exploring the Structure of Oxaliplatin in Aqueous Solution. J Phys Chem B 2009; 113:12343-52. [DOI: 10.1021/jp905415v] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Elizabeth C. Beret
- Departamento de Química Física, Universidad de Sevilla, 41012 Sevilla, Spain, and Institut de Chimie et des Matériaux Paris Est, ICMPE/SAX, UMR 7182 CNRS, Université Paris 12, PRES Paris Est, 94320 Thiais, France
| | - Karine Provost
- Departamento de Química Física, Universidad de Sevilla, 41012 Sevilla, Spain, and Institut de Chimie et des Matériaux Paris Est, ICMPE/SAX, UMR 7182 CNRS, Université Paris 12, PRES Paris Est, 94320 Thiais, France
| | - Diane Müller
- Departamento de Química Física, Universidad de Sevilla, 41012 Sevilla, Spain, and Institut de Chimie et des Matériaux Paris Est, ICMPE/SAX, UMR 7182 CNRS, Université Paris 12, PRES Paris Est, 94320 Thiais, France
| | - Enrique Sánchez Marcos
- Departamento de Química Física, Universidad de Sevilla, 41012 Sevilla, Spain, and Institut de Chimie et des Matériaux Paris Est, ICMPE/SAX, UMR 7182 CNRS, Université Paris 12, PRES Paris Est, 94320 Thiais, France
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