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Electric Field and Temperature Effects on the Ab Initio Spectroscopy of Liquid Methanol. APPLIED SCIENCES-BASEL 2021. [DOI: 10.3390/app11125457] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Although many H-bonded systems have been extensively investigated by means of infrared (IR) spectroscopy, the vibrational response to externally applied electric fields of polar liquids remains poorly investigated. However, local electric fields along with quantum-mechanical interactions rule the behavior of H-bonded samples at the molecular level. Among the many H-bonded systems, liquid methanol holds a key place in that it exhibits a very simple H-bond network where, on average, each molecule acts as a single H-bond donor and, at the same time, as a single H-bond acceptor. Here we report on the IR spectra emerging from a series of state-of-the-art ab initio molecular dynamics simulations of bulk liquid methanol under the action of static and homogeneous electric fields. In addition, the same analysis is here conducted in the absence of the external field and for different temperatures. Although some electric-field-induced effects resemble the response of other polar liquids (such as the global contraction of the IR spectrum upon field exposure), it turns out that, distinctly from water, the “electrofreezing” phenomenon is unlikely to happen in liquid methanol. Finally, we provide atomistic analyses magnifying the completely different nature of electric-field- and temperature-induced effects on bulk liquid methanol and on its vibrational response.
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Ab Initio Molecular Dynamics Study of Methanol-Water Mixtures under External Electric Fields. Molecules 2020; 25:molecules25153371. [PMID: 32722281 PMCID: PMC7435743 DOI: 10.3390/molecules25153371] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2020] [Revised: 07/17/2020] [Accepted: 07/20/2020] [Indexed: 11/25/2022] Open
Abstract
Intense electric fields applied on H-bonded systems are able to induce molecular dissociations, proton transfers, and complex chemical reactions. Nevertheless, the effects induced in heterogeneous molecular systems such as methanol-water mixtures are still elusive. Here we report on a series of state-of-the-art ab initio molecular dynamics simulations of liquid methanol-water mixtures at different molar ratios exposed to static electric fields. If, on the one hand, the presence of water increases the proton conductivity of methanol-water mixtures, on the other, it hinders the typical enhancement of the chemical reactivity induced by electric fields. In particular, a sudden increase of the protonic conductivity is recorded when the amount of water exceeds that of methanol in the mixtures, suggesting that important structural changes of the H-bond network occur. By contrast, the field-induced multifaceted chemistry leading to the synthesis of e.g., hydrogen, dimethyl ether, formaldehyde, and methane observed in neat methanol, in 75:25, and equimolar methanol-water mixtures, completely disappears in samples containing an excess of water and in pure water. The presence of water strongly inhibits the chemical reactivity of methanol.
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Liu Y, Wang H, Shi W, Zhang W, Yu J, Chandran BK, Cui C, Zhu B, Liu Z, Li B, Xu C, Xu Z, Li S, Huang W, Huo F, Chen X. Alcohol-Mediated Resistance-Switching Behavior in Metal-Organic Framework-Based Electronic Devices. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201602499] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Yaqing Liu
- School of Materials Science and Engineering; Nanyang Technological University; 50 Nanyang Avenue 639798 Singapore
| | - Hong Wang
- School of Materials Science and Engineering; Nanyang Technological University; 50 Nanyang Avenue 639798 Singapore
| | - Wenxiong Shi
- School of Materials Science and Engineering; Nanyang Technological University; 50 Nanyang Avenue 639798 Singapore
| | - Weina Zhang
- Key Laboratory of Flexible Electronics; Institute of Advanced Materials; Nanjing Tech University; 30 South Puzhu Road Nanjing 211816 P. R. China
| | - Jiancan Yu
- School of Materials Science and Engineering; Nanyang Technological University; 50 Nanyang Avenue 639798 Singapore
| | - Bevita K. Chandran
- School of Materials Science and Engineering; Nanyang Technological University; 50 Nanyang Avenue 639798 Singapore
| | - Chenlong Cui
- School of Materials Science and Engineering; Nanyang Technological University; 50 Nanyang Avenue 639798 Singapore
| | - Bowen Zhu
- School of Materials Science and Engineering; Nanyang Technological University; 50 Nanyang Avenue 639798 Singapore
| | - Zhiyuan Liu
- School of Materials Science and Engineering; Nanyang Technological University; 50 Nanyang Avenue 639798 Singapore
| | - Bin Li
- School of Materials Science and Engineering; Nanyang Technological University; 50 Nanyang Avenue 639798 Singapore
| | - Cai Xu
- School of Materials Science and Engineering; Nanyang Technological University; 50 Nanyang Avenue 639798 Singapore
| | - Zhiling Xu
- Key Laboratory of Flexible Electronics; Institute of Advanced Materials; Nanjing Tech University; 30 South Puzhu Road Nanjing 211816 P. R. China
| | - Shuzhou Li
- School of Materials Science and Engineering; Nanyang Technological University; 50 Nanyang Avenue 639798 Singapore
| | - Wei Huang
- Key Laboratory of Flexible Electronics; Institute of Advanced Materials; Nanjing Tech University; 30 South Puzhu Road Nanjing 211816 P. R. China
| | - Fengwei Huo
- Key Laboratory of Flexible Electronics; Institute of Advanced Materials; Nanjing Tech University; 30 South Puzhu Road Nanjing 211816 P. R. China
| | - Xiaodong Chen
- School of Materials Science and Engineering; Nanyang Technological University; 50 Nanyang Avenue 639798 Singapore
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Liu Y, Wang H, Shi W, Zhang W, Yu J, Chandran BK, Cui C, Zhu B, Liu Z, Li B, Xu C, Xu Z, Li S, Huang W, Huo F, Chen X. Alcohol-Mediated Resistance-Switching Behavior in Metal-Organic Framework-Based Electronic Devices. Angew Chem Int Ed Engl 2016; 55:8884-8. [DOI: 10.1002/anie.201602499] [Citation(s) in RCA: 57] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2016] [Indexed: 11/12/2022]
Affiliation(s)
- Yaqing Liu
- School of Materials Science and Engineering; Nanyang Technological University; 50 Nanyang Avenue 639798 Singapore
| | - Hong Wang
- School of Materials Science and Engineering; Nanyang Technological University; 50 Nanyang Avenue 639798 Singapore
| | - Wenxiong Shi
- School of Materials Science and Engineering; Nanyang Technological University; 50 Nanyang Avenue 639798 Singapore
| | - Weina Zhang
- Key Laboratory of Flexible Electronics; Institute of Advanced Materials; Nanjing Tech University; 30 South Puzhu Road Nanjing 211816 P. R. China
| | - Jiancan Yu
- School of Materials Science and Engineering; Nanyang Technological University; 50 Nanyang Avenue 639798 Singapore
| | - Bevita K. Chandran
- School of Materials Science and Engineering; Nanyang Technological University; 50 Nanyang Avenue 639798 Singapore
| | - Chenlong Cui
- School of Materials Science and Engineering; Nanyang Technological University; 50 Nanyang Avenue 639798 Singapore
| | - Bowen Zhu
- School of Materials Science and Engineering; Nanyang Technological University; 50 Nanyang Avenue 639798 Singapore
| | - Zhiyuan Liu
- School of Materials Science and Engineering; Nanyang Technological University; 50 Nanyang Avenue 639798 Singapore
| | - Bin Li
- School of Materials Science and Engineering; Nanyang Technological University; 50 Nanyang Avenue 639798 Singapore
| | - Cai Xu
- School of Materials Science and Engineering; Nanyang Technological University; 50 Nanyang Avenue 639798 Singapore
| | - Zhiling Xu
- Key Laboratory of Flexible Electronics; Institute of Advanced Materials; Nanjing Tech University; 30 South Puzhu Road Nanjing 211816 P. R. China
| | - Shuzhou Li
- School of Materials Science and Engineering; Nanyang Technological University; 50 Nanyang Avenue 639798 Singapore
| | - Wei Huang
- Key Laboratory of Flexible Electronics; Institute of Advanced Materials; Nanjing Tech University; 30 South Puzhu Road Nanjing 211816 P. R. China
| | - Fengwei Huo
- Key Laboratory of Flexible Electronics; Institute of Advanced Materials; Nanjing Tech University; 30 South Puzhu Road Nanjing 211816 P. R. China
| | - Xiaodong Chen
- School of Materials Science and Engineering; Nanyang Technological University; 50 Nanyang Avenue 639798 Singapore
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Borpuzari MP, Boruah A, Kar R. Ionisation potential theorem in the presence of the electric field: Assessment of range-separated functional in the reproduction of orbital and excitation energies. J Chem Phys 2016; 144:164113. [DOI: 10.1063/1.4947241] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
| | - Abhijit Boruah
- Department of Chemistry, Dibrugarh University, Dibrugarh, Assam 786004, India
| | - Rahul Kar
- Department of Chemistry, Dibrugarh University, Dibrugarh, Assam 786004, India
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Faralli C, Pagliai M, Cardini G, Schettino V. Ab Initio Molecular Dynamics Study of Mg(2+) and Ca(2+) Ions in Liquid Methanol. J Chem Theory Comput 2015; 4:156-63. [PMID: 26619989 DOI: 10.1021/ct700209v] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Ab initio Car-Parrinello molecular dynamics simulations have been performed in order to investigate the solvation properties of Mg(2+) and Ca(2+) in fully deuterated methanol solution to better understand polarization effects induced by the ions. Charge transfer and dipole moment calculations have been performed to give more detailed insight on the role of the electronic reorganization and its effect on the first solvation shell stability. The perturbation of the methanol H-bond network has been investigated.
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Affiliation(s)
- Cristian Faralli
- Laboratorio di Spettroscopia Molecolare, Dipartimento di Chimica, Università di Firenze, Via della Lastruccia 3, 50019 Sesto Fiorentino, Firenze, Italia, and European Laboratory for Nonlinear Spectroscopy (LENS), via Nello Carrara 1, 50019 Sesto Fiorentino, Firenze, Italia
| | - Marco Pagliai
- Laboratorio di Spettroscopia Molecolare, Dipartimento di Chimica, Università di Firenze, Via della Lastruccia 3, 50019 Sesto Fiorentino, Firenze, Italia, and European Laboratory for Nonlinear Spectroscopy (LENS), via Nello Carrara 1, 50019 Sesto Fiorentino, Firenze, Italia
| | - Gianni Cardini
- Laboratorio di Spettroscopia Molecolare, Dipartimento di Chimica, Università di Firenze, Via della Lastruccia 3, 50019 Sesto Fiorentino, Firenze, Italia, and European Laboratory for Nonlinear Spectroscopy (LENS), via Nello Carrara 1, 50019 Sesto Fiorentino, Firenze, Italia
| | - Vincenzo Schettino
- Laboratorio di Spettroscopia Molecolare, Dipartimento di Chimica, Università di Firenze, Via della Lastruccia 3, 50019 Sesto Fiorentino, Firenze, Italia, and European Laboratory for Nonlinear Spectroscopy (LENS), via Nello Carrara 1, 50019 Sesto Fiorentino, Firenze, Italia
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Gurav ND, Kulkarni AD, Gejji SP, Pathak RK. CH3OH⋯(H2O)n [n = 1-4] clusters in external electric fields. J Chem Phys 2015; 142:214309. [PMID: 26049498 DOI: 10.1063/1.4921380] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
For hydrogen-bonded neutral molecular clusters, response to an externally applied electric field can critically affect molecular cooperativity. In this light, response of dilute methanol-water admixtures to an external, perturbative electric field is studied at the simplest molecular level in the cluster configurations CH3OH⋯(H2O)n with "n" chosen to range from 1 to 4, employing the M06-2X hybrid functional in conjunction with the 6-311++G(2d,2p) basis set, well-suited for hydrogen bonding. Methanol is seen to favorably bond with the water molecules at its hydroxyl end up to certain characteristic maximum threshold field strengths beyond which the HOMO-LUMO energy-gap abruptly drops to zero culminating into a complete breakdown of the cluster. In the interim regime prior to breakdown, the electric field significantly alters the hydrogen bonding pattern primarily by elongating the cluster, resulting in a marked enhancement in its electric dipole moment leading to alterations in the molecular electrostatic potential. With the application of electric field, certain "exotic" O-H vibration bands appear that at the threshold field fall in the frequency range of 2510 cm(-1)-1880 cm(-1) in the IR spectra, in contrast with their normal (zero-field) counterparts that occur in the range of ∼3300-3900 cm(-1).
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Affiliation(s)
- Nalini D Gurav
- Department of Physics, Savitribai Phule Pune University, Pune 411007, Maharashtra, India
| | - Anant D Kulkarni
- Centre for Computational Materials Science, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bangalore 560064, Karnataka, India
| | - Shridhar P Gejji
- Department of Chemistry, Savitribai Phule Pune University, Pune 411007, Maharashtra, India
| | - Rajeev K Pathak
- Department of Physics, Savitribai Phule Pune University, Pune 411007, Maharashtra, India
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Cassone G, Giaquinta PV, Saija F, Saitta AM. Liquid methanol under a static electric field. J Chem Phys 2015; 142:054502. [DOI: 10.1063/1.4907010] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Borpuzari MP, Rohman R, Kar R. Antioxidant properties can be tuned in the presence of an external electric field: accurate computation of O–H BDE with range-separated density functionals. RSC Adv 2015. [DOI: 10.1039/c5ra13462e] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The effect of external electric field on the antioxidant properties of gallic and caffeic acids is studied. The performance of range-separated functionals in reproducing the O–H BDE is tested in the presence of an external electric field.
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Affiliation(s)
| | - Rakiba Rohman
- Department of Chemistry
- Dibrugarh University
- Dibrugarh
- India-786004
| | - Rahul Kar
- Department of Chemistry
- Dibrugarh University
- Dibrugarh
- India-786004
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10
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Do H, Besley NA. Structural optimization of molecular clusters with density functional theory combined with basin hopping. J Chem Phys 2012; 137:134106. [DOI: 10.1063/1.4755994] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Rai D, Kulkarni AD, Gejji SP, Pathak RK. Methanol clusters (CH3OH)n, n = 3–6 in external electric fields: Density functional theory approach. J Chem Phys 2011; 135:024307. [DOI: 10.1063/1.3605630] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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12
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Keefe CD, Istvankova Z. Computational study of proper and improper hydrogen bonding in methanol complexes. CAN J CHEM 2011. [DOI: 10.1139/v10-155] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The bulk properties of alcohols, like those of aqueous solutions, are governed mostly by hydrogen bonding; however, in contrast with water molecules, the chemical structure of a simple alcohol such as methanol offers an opportunity to explore the effects of both proper and improper hydrogen bonding on a single hydrogen donor. The presence of the hydroxyl group generally gives rise to a strong proper hydrogen bond, while the methyl group of methanol is likely involved in the weaker improper hydrogen bond, among other weak non-covalent interactions. The effects of the two types of hydrogen bonds on the stability, geometric parameters, and properties of electron density of methanol complexes are examined while considering different geometrical arrangements of the methanol dimer and the binary complexes of methanol with water, acetonitrile, and chloromethane. Subsequently, potential conclusions about the nature of improper hydrogen bonding and the origin of the C–H bond contraction that results upon complex formation are discussed. Quantum theory of atoms in molecules and natural bond orbital methods were used in the analysis; all calculations were performed at the MP2(full)/6-311++G(d,p) level of theory.
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Affiliation(s)
- C. Dale Keefe
- Department of Chemistry, Cape Breton University, Sydney, NS B1P 6L2, Canada
| | - Zuzana Istvankova
- Department of Chemistry, Cape Breton University, Sydney, NS B1P 6L2, Canada
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Maerzke KA, Siepmann JI. Effects of an Applied Electric Field on the Vapor−Liquid Equilibria of Water, Methanol, and Dimethyl Ether. J Phys Chem B 2010; 114:4261-70. [DOI: 10.1021/jp9101477] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Katie A. Maerzke
- Departments of Chemistry and of Chemical Engineering and Materials Science, University of Minnesota, 207 Pleasant Street SE, Minneapolis, Minnesota 55455
| | - J. Ilja Siepmann
- Departments of Chemistry and of Chemical Engineering and Materials Science, University of Minnesota, 207 Pleasant Street SE, Minneapolis, Minnesota 55455
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Mandal A, Prakash M, Kumar RM, Parthasarathi R, Subramanian V. Ab Initio and DFT Studies on Methanol−Water Clusters. J Phys Chem A 2010; 114:2250-8. [DOI: 10.1021/jp909397z] [Citation(s) in RCA: 81] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Abhishek Mandal
- Chemical Laboratory, Central Leather Research Institute, Council of Scientific and Industrial Research, Adyar, Chennai-600 020, India
| | - Muthuramalingam Prakash
- Chemical Laboratory, Central Leather Research Institute, Council of Scientific and Industrial Research, Adyar, Chennai-600 020, India
| | - Ravva Mahesh Kumar
- Chemical Laboratory, Central Leather Research Institute, Council of Scientific and Industrial Research, Adyar, Chennai-600 020, India
| | - Ramakrishnan Parthasarathi
- Chemical Laboratory, Central Leather Research Institute, Council of Scientific and Industrial Research, Adyar, Chennai-600 020, India
| | - Venkatesan Subramanian
- Chemical Laboratory, Central Leather Research Institute, Council of Scientific and Industrial Research, Adyar, Chennai-600 020, India
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Calvo F, Dugourd P. Folding of gas-phase polyalanines in a static electric field: alignment, deformations, and polarization effects. Biophys J 2008; 95:18-32. [PMID: 18223004 PMCID: PMC2426642 DOI: 10.1529/biophysj.107.124685] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2007] [Accepted: 12/28/2007] [Indexed: 11/18/2022] Open
Abstract
Monte Carlo simulations of the temperature-induced unfolding of small gas-phase polyalanines in a static, homogeneous electric field are reported, based on the AMBER ff96 force field. The peptides exhibit a structural transition from the native alpha-helix state to entropically favored beta-sheet conformations, before eventually turning to extended coil at higher temperatures. Upon switching the electric field, the molecules undergo preferential alignment of their dipole moment vector toward the field axis and a shift of the alpha-beta transition to higher temperatures. At higher field strengths (>10(8) V/m) the molecules stretch and the alpha-beta and beta-coil transitions merge. A simple three-state model is shown to account for the observed behavior. Under even higher fields, density functional theory calculations and a polarizable force field both show that electronic rearrangements tend to further increase the dipole moment, polarization effects being approximately half in magnitude with respect to stretching effect. Finally a tentative (temperature, field-strength) phase diagram is sketched.
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Affiliation(s)
- F Calvo
- Centre National de la Recherche Scientifique, Laboratoire de Spectrometrie Ionique et Moleculaire, Université de Lyon, Université Lyon 1, Villeurbanne, France.
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Andrade-Filho T, Martins HS, Del Nero J. Theoretical investigation of the electronic absorption spectrum of Piceatannol in methanolic solution. Theor Chem Acc 2008. [DOI: 10.1007/s00214-008-0457-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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18
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Rai D, Kulkarni AD, Gejji SP, Pathak RK. Water clusters (H2O)n, n=6–8, in external electric fields. J Chem Phys 2008; 128:034310. [DOI: 10.1063/1.2816565] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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