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Wang H, Wang Z, Jian J, Jiang C, Pan L. The intermolecular polar bond interaction and coupling induced spectral splitting phenomenon for a binary mixture. Phys Chem Chem Phys 2023; 25:13999-14004. [PMID: 37194330 DOI: 10.1039/d3cp01391j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
To explain the polarization Raman noncoincidence effect of specific polar bonds and the noncoincidence phenomenon between FT-Raman and FT-IR spectra, aggregation-induced spectral splitting theory was proposed. In this paper, the vibration splitting theory was demonstrated using two strategies: improving the spectral resolution with cryogenic matrix isolation techniques and identifying cases where the coupling splitting is large enough to be distinguishable. The monomer and dimer splitting bands of acetone were detected when cryogenically isolated by the Ar matrix. Additionally, the polarization Raman and two-dimensional infrared spectra of a β-propiolactone (PIL)/CCl4 binary mixture were collected at room temperature, and the spectral splitting phenomenon was clearly observed. The dynamic transformation between the monomer and dimer could be achieved and detected by adjusting the PIL concentration. The observed splitting phenomenon was further confirmed by theoretical DFT calculations based on the monomer and dimer of PIL, as well as the FT-IR and FT-Raman spectra of PIL. Concentration-triggered 2D-COS synchronous and asynchronous spectra also confirmed the splitting phenomenon and the dilution kinetics of PIL/CCl4.
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Affiliation(s)
- Huigang Wang
- Hangzhou Institute of Advanced Studies, Zhejiang Normal University, 1108 Gengwen Road, Hangzhou 311231, Zhejiang, P. R. China.
| | - Zian Wang
- College of Life Sciences, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Jiwen Jian
- Hangzhou Institute of Advanced Studies, Zhejiang Normal University, 1108 Gengwen Road, Hangzhou 311231, Zhejiang, P. R. China.
| | - Caiying Jiang
- College of Life Sciences, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Lanying Pan
- Shulan International Medical College, Zhejiang Shuren University, Hangzhou 310015, China
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2
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The Role of Resonant Coupling in Vibrational Sum-Frequency-Generation Spectroscopy: Liquid Acetonitrile at the Silica Interface. J Mol Liq 2023. [DOI: 10.1016/j.molliq.2023.121315] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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3
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Solvent controlled aggregation behavior of peptide bond simulant N-methylacetamide and vibrational coupling splitting theory. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.116436] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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4
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Shelton DP. Long-range correlation of intra-molecular and inter-molecular vibration in liquid CCl 4. J Chem Phys 2021; 154:034502. [PMID: 33499619 DOI: 10.1063/5.0036091] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Experiments measuring the polarization dependence of hyper-Raman light scattering reveal long-range correlation of molecular vibrations in liquid CCl4. The ν3 and ν1 + ν4 intra-molecular vibrations at about 770 cm-1 are strongly polarized transverse to the scattering wavevector. Weaker transverse polarization is exhibited by the ν1, ν2, and ν4 intra-molecular vibrations and by the inter-molecular collision-induced band around 0 cm-1. The observed polarization dependence is due to the correlation of the vibrations on molecules separated by about 200 nm. The strength of the observed correlation increases with the transition dipole moment for the vibration mode and is consistent with dipole-dipole coupling.
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Affiliation(s)
- David P Shelton
- Department of Physics and Astronomy, University of Nevada, Las Vegas, Nevada 89154-4002, USA
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5
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Vibrational couplings and energy transfer pathways of water's bending mode. Nat Commun 2020; 11:5977. [PMID: 33239630 PMCID: PMC7688972 DOI: 10.1038/s41467-020-19759-w] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Accepted: 10/26/2020] [Indexed: 12/15/2022] Open
Abstract
Coupling between vibrational modes is essential for energy transfer and dissipation in condensed matter. For water, different O-H stretch modes are known to be very strongly coupled both within and between water molecules, leading to ultrafast dissipation and delocalization of vibrational energy. In contrast, the information on the vibrational coupling of the H-O-H bending mode of water is lacking, even though the bending mode is an essential intermediate for the energy relaxation pathway from the stretch mode to the heat bath. By combining static and femtosecond infrared, Raman, and hyper-Raman spectroscopies for isotopically diluted water with ab initio molecular dynamics simulations, we find the vibrational coupling of the bending mode differs significantly from the stretch mode: the intramode intermolecular coupling of the bending mode is very weak, in stark contrast to the stretch mode. Our results elucidate the vibrational energy transfer pathways of water. Specifically, the librational motion is essential for the vibrational energy relaxation and orientational dynamics of H-O-H bending mode. Vibrational energy transfer in water involves intermolecular coupling of O-H stretching modes, but much less is known about the role of the bending modes. Here the authors, combining static and femtosecond infrared, Raman, and hyper-Raman spectroscopy and ab initio molecular dynamics simulations, provide insight into the energy dynamics of the bend vibrations.
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6
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Arrigoni A, Brambilla L, Bertarelli C, Serra G, Tommasini M, Castiglioni C. P(VDF-TrFE) nanofibers: structure of the ferroelectric and paraelectric phases through IR and Raman spectroscopies. RSC Adv 2020; 10:37779-37796. [PMID: 35515179 PMCID: PMC9057215 DOI: 10.1039/d0ra05478j] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Accepted: 09/30/2020] [Indexed: 11/27/2022] Open
Abstract
This study elucidates the complex morphology and the related spectroscopic response of poly(vinylidene fluoride-co-trifluoroethylene) copolymer, with 80% molar VDF content, namely P(VDF-TrFE) (80/20). We investigate the molecular structure, the morphology and the thermal behaviour of P(VDF-TrFE) samples obtained as electrospun nanofibers; we discuss their thermal evolution crossing the Curie temperature and the structure resulting after annealing, giving a comparison with P(VDF-TrFE) films. The new experimental data here obtained, combined with previous spectroscopic studies carried out on piezoelectric fluorinated polymers and copolymers, allow identifying spectroscopic markers sensitive to the molecular structure, the molecular orientation, the conformational defects and the kind of crystalline phase. We assign the vibrational modes localized on TrFE units by combining experimental observation and density functional calculations carried out on suitable molecular models. This work provides a sound set of diagnostic tools, which can be exploited for the assessment of structure/property relationships aimed at clarifying the molecular mechanisms leading to the piezoelectric performance of fluorinated copolymers.
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Affiliation(s)
- Alessia Arrigoni
- Dipartimento di Chimica, Materiali e Ingegneria Chimica "Giulio Natta", Politecnico di Milano, Piazza Leonardo da Vinci 32 20133 Milano Italy
| | - Luigi Brambilla
- Dipartimento di Chimica, Materiali e Ingegneria Chimica "Giulio Natta", Politecnico di Milano, Piazza Leonardo da Vinci 32 20133 Milano Italy
| | - Chiara Bertarelli
- Dipartimento di Chimica, Materiali e Ingegneria Chimica "Giulio Natta", Politecnico di Milano, Piazza Leonardo da Vinci 32 20133 Milano Italy
- Center for Nano Science and Technology@PoliMi, Istituto Italiano di Tecnologia Via Pascoli 70/3 20133 Milano Italy
| | - Gianluca Serra
- Dipartimento di Chimica, Materiali e Ingegneria Chimica "Giulio Natta", Politecnico di Milano, Piazza Leonardo da Vinci 32 20133 Milano Italy
| | - Matteo Tommasini
- Dipartimento di Chimica, Materiali e Ingegneria Chimica "Giulio Natta", Politecnico di Milano, Piazza Leonardo da Vinci 32 20133 Milano Italy
| | - Chiara Castiglioni
- Dipartimento di Chimica, Materiali e Ingegneria Chimica "Giulio Natta", Politecnico di Milano, Piazza Leonardo da Vinci 32 20133 Milano Italy
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7
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Devi TG, Borah B. Non-coincidence effect study of NN-Dibutyl formamide in binary liquid mixtures. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.113174] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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8
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Di Fonzo S, Amato J, D'Aria F, Caterino M, D'Amico F, Gessini A, Brady JW, Cesàro A, Pagano B, Giancola C. Ligand binding to G-quadruplex DNA: new insights from ultraviolet resonance Raman spectroscopy. Phys Chem Chem Phys 2020; 22:8128-8140. [PMID: 32246758 DOI: 10.1039/d0cp01022g] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
G-Quadruplexes (G4s) are noncanonical nucleic acid structures involved in the regulation of several biological processes of many organisms. The rational design of G4-targeting molecules developed as potential anticancer and antiviral therapeutics is a complex problem intrinsically due to the structural polymorphism of these peculiar DNA structures. The aim of the present work is to show how Ultraviolet Resonance Raman (UVRR) spectroscopy can complement other techniques in providing valuable information about ligand/G4 interactions in solution. Here, the binding of BRACO-19 and Pyridostatin - two of the most potent ligands - to selected biologically relevant G4s was investigated by polarized UVRR scattering at 266 nm. The results give new insights into the binding mode of these ligands to G4s having different sequences and topologies by performing an accurate analysis of peaks assigned to specific groups and their changes upon binding. Indeed, the UVRR data not only show that BRACO-19 and Pyridostatin interact with different G4 sites, but also shed light on the ligand and G4 chemical groups really involved in the interaction. In addition, UVRR results complemented by circular dichroism data clearly indicate that the binding mode of a ligand can also depend on the conformation(s) of the target G4. Overall, these findings demonstrate the utility of using UVRR spectroscopy in the investigation of G4s and G4-ligand interactions in solution.
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Affiliation(s)
- Silvia Di Fonzo
- Elettra-Sincrotrone Trieste S. C. p. A., Science Park, Trieste, I-34149, Italy.
| | - Jussara Amato
- Department of Pharmacy, University of Naples Federico II, Naples, I-80131, Italy.
| | - Federica D'Aria
- Department of Pharmacy, University of Naples Federico II, Naples, I-80131, Italy.
| | - Marco Caterino
- Department of Pharmacy, University of Naples Federico II, Naples, I-80131, Italy.
| | - Francesco D'Amico
- Elettra-Sincrotrone Trieste S. C. p. A., Science Park, Trieste, I-34149, Italy.
| | - Alessandro Gessini
- Elettra-Sincrotrone Trieste S. C. p. A., Science Park, Trieste, I-34149, Italy.
| | - John W Brady
- Department of Food Science, Cornell University, Ithaca, New York, NY 14853, USA
| | - Attilio Cesàro
- Elettra-Sincrotrone Trieste S. C. p. A., Science Park, Trieste, I-34149, Italy. and Department of Chemical and Pharmaceutical Sciences, University of Trieste, Trieste, I-34127, Italy
| | - Bruno Pagano
- Department of Pharmacy, University of Naples Federico II, Naples, I-80131, Italy.
| | - Concetta Giancola
- Department of Pharmacy, University of Naples Federico II, Naples, I-80131, Italy.
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9
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Wang H, Xu H, Liu Q, Zheng X. The noncoincidence phenomenon of acetonylacetone CO stretching in a binary mixture and the aggregation-induced split theory. RSC Adv 2020; 10:30982-30989. [PMID: 35516043 PMCID: PMC9056351 DOI: 10.1039/d0ra02932g] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Accepted: 08/04/2020] [Indexed: 11/25/2022] Open
Abstract
This article aims to correlate the noncoincidence effect phenomenon with the aggregation state of acetylacetone CO stretching in a binary mixture. CO stretching noncoincidence effect (NCE) was observed not only between IR and Raman spectra but also between the isotropic and anisotropic Raman spectra of acetonylacetone. The difference in CO stretching wavenumbers of the isotropic and anisotropic Raman spectra (NCE value) in a binary mixture at different concentrations has been calculated. We found that both isotropic and anisotropic Raman wavenumbers of CO stretching increase with the dilution of acetonylacetone by CCl4 while the NCE value decreases. These noncoincidence and concentration effect phenomena seem to go against the quantum theory. Herein, we proposed an aggregation-induced split (AIS) model to explain the NCE phenomenon and concentration effect. The experimental data were consistent with the DFT calculations performed at the B3LYP-D3/6-311++G (d,p) levels based on the proposed model. The dynamics of transformation from monomers to an aggregated structure can be easily controlled by tuning the concentration. Solvent dependent experiments show that the value of NCE decreased with the increase of the solvent dielectric constant at the same concentration, which is in accordance with Logan's theory. Both the isotropic and anisotropic Raman wavenumbers of the CO stretch increase with the dilution of acetonylacetone by CCl4, while the separation between isotropic and anisotropic Raman wavenumbers (Δυ) decrease.![]()
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Affiliation(s)
- Huigang Wang
- Department of Chemistry
- Key Laboratory of Advanced Textiles Materials and Manufacture Technology of the Ministry of Education
- Engineering Research Center for Eco-Dyeing and Finishing of Textiles of the Ministry of Education
- Zhejiang Sci-Tech University
- Hangzhou 310018
| | - Hang Xu
- Department of Chemistry
- Key Laboratory of Advanced Textiles Materials and Manufacture Technology of the Ministry of Education
- Engineering Research Center for Eco-Dyeing and Finishing of Textiles of the Ministry of Education
- Zhejiang Sci-Tech University
- Hangzhou 310018
| | - Qiuna Liu
- Department of Chemistry
- Key Laboratory of Advanced Textiles Materials and Manufacture Technology of the Ministry of Education
- Engineering Research Center for Eco-Dyeing and Finishing of Textiles of the Ministry of Education
- Zhejiang Sci-Tech University
- Hangzhou 310018
| | - Xuming Zheng
- Department of Chemistry
- Key Laboratory of Advanced Textiles Materials and Manufacture Technology of the Ministry of Education
- Engineering Research Center for Eco-Dyeing and Finishing of Textiles of the Ministry of Education
- Zhejiang Sci-Tech University
- Hangzhou 310018
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10
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Local structure and hydrogen bonding in liquid γ-butyrolactone and propylene carbonate: A molecular dynamics simulation. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2019.110912] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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11
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Stogiannidis G, Tsigoias S, Mpourazanis P, Boghosian S, Kaziannis S, Kalampounias A. Dynamics and vibrational coupling of methyl acetate dissolved in ethanol. Chem Phys 2019. [DOI: 10.1016/j.chemphys.2019.02.009] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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12
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Zhou R, Wu F, Zhou X, Wang H, Zheng X. The structural configurations of Ethylene Trithiocarbonate in the binary mixture (SCS 2 CH 2 CH 2 +CHCl 3 ) investigated by polarized Raman: Experimental and quantum chemical results. J Mol Struct 2017. [DOI: 10.1016/j.molstruc.2016.09.080] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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13
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Tavagnacco L, Di Fonzo S, D’Amico F, Masciovecchio C, Brady JW, Cesàro A. Stacking of purines in water: the role of dipolar interactions in caffeine. Phys Chem Chem Phys 2016; 18:13478-86. [DOI: 10.1039/c5cp07326j] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Concentration dependence of the NCE and the dephasing time show that caffeine molecules aggregate at 80 °C by planar stacking with a relevant contribution of dipole interactions.
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Affiliation(s)
- L. Tavagnacco
- Elettra-Sincrotrone Trieste S.C.p.A
- I-34149 Trieste
- Italy
- Lab. of Physical and Macromolecular Chemistry
- Department of Chemical and Pharmaceutical Sciences
| | - S. Di Fonzo
- Elettra-Sincrotrone Trieste S.C.p.A
- I-34149 Trieste
- Italy
| | - F. D’Amico
- Elettra-Sincrotrone Trieste S.C.p.A
- I-34149 Trieste
- Italy
| | | | - J. W. Brady
- Department of Food Science
- Stocking Hall
- Cornell University
- Ithaca
- USA
| | - A. Cesàro
- Elettra-Sincrotrone Trieste S.C.p.A
- I-34149 Trieste
- Italy
- Lab. of Physical and Macromolecular Chemistry
- Department of Chemical and Pharmaceutical Sciences
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14
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Canaval LR, Lutz OMD, Weiss AKH, Huck CW, Hofer TS. A Dissociative Quantum Mechanical/Molecular Mechanical Molecular Dynamics Simulation and Infrared Experiments Reveal Characteristics of the Strongly Hydrolytic Arsenic(III). Inorg Chem 2014; 53:11861-70. [DOI: 10.1021/ic4031156] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Lorenz R. Canaval
- Theoretical Chemistry Division, Institute of General,
Inorganic and Theoretical Chemistry, University of Innsbruck, Innrain
80-82, A-6020 Innsbruck, Austria
| | - Oliver M. D. Lutz
- Institute for Analytical Chemistry and
Radiochemistry, University of Innsbruck, Innrain 80-82, A-6020 Innsbruck, Austria
| | - Alexander K. H. Weiss
- Theoretical Chemistry Division, Institute of General,
Inorganic and Theoretical Chemistry, University of Innsbruck, Innrain
80-82, A-6020 Innsbruck, Austria
| | - Christian W. Huck
- Institute for Analytical Chemistry and
Radiochemistry, University of Innsbruck, Innrain 80-82, A-6020 Innsbruck, Austria
| | - Thomas S. Hofer
- Theoretical Chemistry Division, Institute of General,
Inorganic and Theoretical Chemistry, University of Innsbruck, Innrain
80-82, A-6020 Innsbruck, Austria
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15
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16
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Upadhyay G, Devi TG, Singh RK, Singh A, Alapati PR. Solvent dependent frequency shift and Raman noncoincidence effect of S=O stretching mode of Dimethyl sulfoxide in liquid binary mixtures. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2013; 109:239-246. [PMID: 23542514 DOI: 10.1016/j.saa.2013.02.046] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2012] [Revised: 02/18/2013] [Accepted: 02/20/2013] [Indexed: 06/02/2023]
Abstract
The isotropic and anisotropic Raman peak frequencies of S=O stretching mode of Dimethyl sulfoxide (DMSO) have been discussed in different chemical and isotopic solvent molecules using different mechanisms. The shifting of peak frequency in further dilution of DMSO with solvent molecule is observed for all solvents. Transition dipole - transition dipole interaction and hydrogen bonding may play a major role in shifting of peak frequencies. The non-coincidence effect (NCE) of DMSO was determined for all the solvents and compared with four theoretical models such as McHale's model, Mirone's modification of McHale's model, Logan's model and Onsager-Fröhlich dielectric continuum model respectively. Most of the theoretical models are largely consistent with our experimental data.
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Affiliation(s)
- Ganesh Upadhyay
- Department of Physics, North-Eastern Regional Institute of Science and Technology, Arunachal Pradesh 791 109, India
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17
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Ribeiro MCC. High Viscosity of Imidazolium Ionic Liquids with the Hydrogen Sulfate Anion: A Raman Spectroscopy Study. J Phys Chem B 2012; 116:7281-90. [DOI: 10.1021/jp302091d] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Mauro C. C. Ribeiro
- Laboratório
de Espectroscopia Molecular, Instituto
de Química, Universidade de São Paulo CP 26077, CEP 05513-970, São Paulo, SP, Brazil
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18
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Sun Y, Zheng R, Shi Q. Theoretical Study of Raman Spectra of Methanol in Aqueous Solutions: Non-Coincident Effect of the CO Stretch. J Phys Chem B 2012; 116:4543-51. [DOI: 10.1021/jp300178v] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yuanyuan Sun
- Beijing National
Laboratory for Molecular Sciences,
State Key Laboratory for Structural Chemistry of Unstable and Stable
Species, Institute of Chemistry, Chinese Academy of Sciences, Zhongguancun, Beijing 100190, China
| | - Renhui Zheng
- Beijing National
Laboratory for Molecular Sciences,
State Key Laboratory for Structural Chemistry of Unstable and Stable
Species, Institute of Chemistry, Chinese Academy of Sciences, Zhongguancun, Beijing 100190, China
| | - Qiang Shi
- Beijing National
Laboratory for Molecular Sciences,
State Key Laboratory for Structural Chemistry of Unstable and Stable
Species, Institute of Chemistry, Chinese Academy of Sciences, Zhongguancun, Beijing 100190, China
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19
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Torii H, Giorgini MG, Musso M. Merged- and Separate-Band Behavior of the C═O Stretching Band in N,N-Dimethylformamide Isotopic Liquid Mixtures: DMF/DMF-d1, DMF/DMF-d6, and DMF/DMF-13C═O. J Phys Chem B 2011; 116:353-66. [DOI: 10.1021/jp209119e] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Hajime Torii
- Department of Chemistry, School of Education, Shizuoka University, 836 Ohya, Shizuoka 422-8529, Japan
| | - Maria Grazia Giorgini
- Dipartimento di Chimica Fisica ed Inorganica, Università di Bologna, Viale del Risorgimento 4, I-40136 Bologna, Italy
| | - Maurizio Musso
- Fachbereich Materialforschung und Physik, Abteilung Physik und Biophysik, Universität Salzburg, Hellbrunnerstrasse 34, A-5020 Salzburg, Austria
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20
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Brodin A, Jacobsson P. Dipolar interaction and molecular ordering in liquid propylene carbonate: Anomalous dielectric susceptibility and Raman non-coincidence effect. J Mol Liq 2011. [DOI: 10.1016/j.molliq.2011.08.001] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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21
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Rivera CA, Fourkas JT. Reexamining the interpretation of vibrational sum-frequency generation spectra. INT REV PHYS CHEM 2011. [DOI: 10.1080/0144235x.2011.641263] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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22
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Torii H. Intra- and intermolecular charge fluxes induced by the OH stretching mode of water and their effects on the infrared intensities and intermolecular vibrational coupling. J Phys Chem B 2011; 114:13403-9. [PMID: 20886869 DOI: 10.1021/jp106952q] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Intra- and intermolecular charge fluxes induced by the OH stretching mode of water and their effects on the infrared (IR) intensities and intermolecular vibrational coupling are analyzed theoretically. Density functional theoretical (DFT) calculations are carried out for the clusters consisting of 28 and 30 water molecules, and the change in the electron density induced by the OH stretching mode, i.e., the electron density derivative ∂ρ((el))(r)/∂Q(OH), is calculated and its effect is analyzed. It is shown that the electron density derivative extends to the spatial region of the water molecule that accepts the hydrogen bond donated by the vibrating OH bond, indicating that intermolecular charge flux is induced. Both the amount of vibration-induced change in the electric charge (the charge derivative) and the distance between charge centers are large for the intermolecular charge flux, giving rise to a significant enhancement of the dipole derivative, and hence the IR intensity. After showing quantitatively that it is possible to understand the intermolecular vibrational coupling between the OH stretching oscillators with the picture of the "electric field modulation by one vibration" and the "response by the other vibration to the electric field modulation", the effect of the intermolecular charge flux on the intermolecular vibrational coupling is analyzed. It is shown that the intermolecular charge flux plays an important role also in this relation, but the two factors determining the dipole derivative (the charge derivative and the distance between charge centers) should be carefully taken into account.
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Affiliation(s)
- Hajime Torii
- Department of Chemistry, School of Education, Shizuoka University, 836 Ohya, Shizuoka 422-8529, Japan.
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23
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Zheng R, Sun Y, Shi Q. Theoretical study of the infrared and Raman line shapes of liquid methanol. Phys Chem Chem Phys 2011; 13:2027-35. [DOI: 10.1039/c0cp01145b] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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24
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MUSSO M, GIORGINI MG, ASENBAUM GDOGEAA. The non-coincidence effect in highly diluted acetone-CCl I. Experimental results and theoretical predictions 4 binary mixtures. Mol Phys 2010. [DOI: 10.1080/002689797170653] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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25
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Döge G, Lindner D. Pressure Dependence of Resonant Intermolecular Vibrational Coupling etc.in Isotropic Raman Scattering of the v2 Mode of CH3I. ACTA ACUST UNITED AC 2010. [DOI: 10.1002/bbpc.19900940341] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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26
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Giorgini MG, Torii H, Musso M. The influence of alkaline earth ions on the structural organization of acetone probed by the noncoincidence effect of the ν(CO) band: experimental and quantum chemical results. Phys Chem Chem Phys 2010; 12:183-92. [DOI: 10.1039/b912164a] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Yang M, Skinner JL. Signatures of coherent vibrational energy transfer in IR and Raman line shapes for liquid water. Phys Chem Chem Phys 2009; 12:982-91. [PMID: 20066383 DOI: 10.1039/b918314k] [Citation(s) in RCA: 81] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We calculate theoretical IR and Raman line shapes for the OH stretch region of liquid water, using mixed quantum/classical and electronic-structure/molecular-dynamics methods. Our approach improves upon the time-averaging approximation used earlier for the same problem, and our results are in excellent agreement with experiment. Previous analysis of theoretical results for this problem considered the extent of delocalization (over local OH stretch excitations) of the instantaneous vibrational eigenstates. In this work we present a complementary analysis in the time-domain, by decomposing the appropriate response functions into diagonal and off-diagonal contributions (in the local mode basis). Our analysis indicates that all vibrational spectra show signatures of coherent vibrational energy transfer. This is manifest in different (IR, isotropic and depolarized Raman) experiments to different extents, because of the competition between coherent energy transfer and rotational disorder.
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Affiliation(s)
- Mino Yang
- Department of Chemistry and Basic Sciences Research Institute, Chungbuk National University, Cheongju, Chungbuk 361-763, Republic of Korea.
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28
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The effect of microscopic inhomogeneities in acetone/methanol binary liquid mixtures observed through the Raman spectroscopic noncoincidence effect. J Mol Liq 2009. [DOI: 10.1016/j.molliq.2008.08.006] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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29
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Torii H. Comparison of different potential models in the calculations of the infrared and polarized Raman spectra and the transient infrared absorption anisotropy of the OH stretching mode of liquid water. J Mol Liq 2007. [DOI: 10.1016/j.molliq.2007.08.015] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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30
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Woutersen S. Simultaneous photon absorption as a probe of molecular interaction and hydrogen-bond cooperativity in liquids. J Chem Phys 2007; 127:154517. [DOI: 10.1063/1.2779033] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
Affiliation(s)
- Sander Woutersen
- Van’t Hoff Institute for Molecular Sciences, University of Amsterdam, Nieuwe Achtergracht 127-129, 1018 WV Amsterdam, The Netherlands
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31
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Modulations of vibrational frequencies and other vibrational properties of the CO stretching mode of liquid acetone. J Mol Liq 2007. [DOI: 10.1016/j.molliq.2006.12.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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32
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Affiliation(s)
- G. Döge
- a Institut für Physikalische und Theoretische Chemie , Technische Universität Braunschweig , Hans-Sommer-Straβe 10, 3300 , Braunschweig , Germany
| | - D. Schneider
- a Institut für Physikalische und Theoretische Chemie , Technische Universität Braunschweig , Hans-Sommer-Straβe 10, 3300 , Braunschweig , Germany
| | - A. Morresi
- b Laboratorio di Chimica Fisica , Università di Perugia , Via Elce di Sotto, 8, 06100 , Perugia , Italy
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33
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Torii H. Time-Domain Calculations of the Polarized Raman Spectra, the Transient Infrared Absorption Anisotropy, and the Extent of Delocalization of the OH Stretching Mode of Liquid Water. J Phys Chem A 2006; 110:9469-77. [PMID: 16869698 DOI: 10.1021/jp062033s] [Citation(s) in RCA: 110] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The polarized Raman spectrum and the time dependence of the transient infrared (TRIR) absorption anisotropy are calculated for the OH stretching mode of liquid water (neat liquid H2O) by using time-domain formulations, which include the effects of both the diagonal frequency modulations (of individual oscillators) induced by the interactions between the dipole derivatives and the intermolecular electric field, and the off-diagonal (intermolecular) vibrational coupling described by the transition dipole coupling (TDC) mechanism. The IR spectrum of neat liquid H2O and the TRIR anisotropy of a liquid mixture of H2O/HDO/D2O are also calculated. It is shown that the calculated features of these optical signals, including the temperature dependence of the polarized Raman and IR spectra, are in reasonable agreement with the experimental results, indicating that the frequency separation between the isotropic and anisotropic components of the polarized Raman spectrum and the rapid decay (approximately 0.1 ps) of the TRIR anisotropy of the OH stretching mode of neat liquid H2O are mainly controlled by the resonant intermolecular vibrational coupling described by the TDC mechanism. Comparing with the time evolution of vibrational excitations, it is suggested that the TRIR anisotropy decays in the time needed for the initially localized vibrational excitations to delocalize over a few oscillators. It is also shown that the enhancement of the dipole derivatives by the interactions with surrounding molecules is an important factor in generating the spectral profiles of the OH stretching Raman band. The time-domain behavior of the molecular motions that affect the spectroscopic features is discussed.
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Affiliation(s)
- Hajime Torii
- Department of Chemistry, School of Education, Shizuoka University, 836 Ohya, Shizuoka 422-8529, Japan.
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34
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Musso M, Giorgini MG, Torii H, Dorka R, Schiel D, Asenbaum A, Keutel D, Oehme KL. The Raman non-coincidence effect of the 12CO stretching mode of liquid acetone in chemical and in isotopic mixtures. J Mol Liq 2006. [DOI: 10.1016/j.molliq.2005.11.003] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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35
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Torii H. Effects of Intermolecular Vibrational Coupling and Liquid Dynamics on the Polarized Raman and Two-Dimensional Infrared Spectral Profiles of Liquid N,N-Dimethylformamide Analyzed with a Time-Domain Computational Method. J Phys Chem A 2006; 110:4822-32. [PMID: 16599451 DOI: 10.1021/jp060014c] [Citation(s) in RCA: 84] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A time-domain method for calculating polarized Raman and two-dimensional infrared (2D-IR) spectra that includes the effects of both the diagonal frequency modulations (of individual molecules in the system) and the off-diagonal (intermolecular) vibrational coupling is presented and applied to the case of the amide I band of liquid N,N-dimethylformamide. It is shown that the effect of the resonant off-diagonal vibrational coupling and the resulting delocalization of vibrational modes is clearly seen as the noncoincidence effect in the polarized Raman spectrum and some spectral features (especially as asymmetric intensity patterns) in the 2D-IR spectra. The type of 2D-IR spectra (concerning the polarization condition) most appropriate for observing this effect is discussed. On the basis of the agreement between the observed and calculated band profiles of the polarized Raman spectrum, the time dependence of the transient IR absorption anisotropy is also calculated. The method of evaluating the extent of delocalization of vibrational modes that is relevant to the features of these optical signals in the time and frequency domains is discussed. The nature of the molecular motions (concerning the liquid dynamics) that are effective on the diagonal frequency modulations is also examined.
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Affiliation(s)
- Hajime Torii
- Department of Chemistry, School of Education, Shizuoka University, 836 Ohya, Shizuoka 422-8529, Japan.
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36
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Devi TG, Kumar K. Anisotropy shift and Raman bandwidth studies in carbonyl containing molecule o-chlorobenzaldehyde: role of repulsive forces. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2005; 62:972-9. [PMID: 15950524 DOI: 10.1016/j.saa.2005.04.017] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2005] [Revised: 04/06/2005] [Accepted: 04/07/2005] [Indexed: 05/02/2023]
Abstract
The analysis of Raman anisotropy shift as a function of solvent concentration shows the weakening of pair interaction of the molecules due to the influence of solvent-induced perturbations. The present study deals with the effect of dielectric constant of the medium on the non-coincidence effect (anisotropy shift) and the role of van der Waals' volume on the anisotropic Raman bandwidth. The CO stretching vibration of o-chlorobenzaldehyde (OCBD) molecule was studied in various polar and non-polar solvents namely CCl4, CH3CN, C6H5Cl and CH3C6H5. The data on anisotropic bandwidth are interpreted using the van der Waals' volume within the framework of lineshape theory of Bratos and Tarjus, while the Onsager-Fröhlich model on non-coincidence effect has been tested. Our study shows that the repulsive potential of the type e-alphaR is playing an important role in the OCBD-solvent interactions. The vanishing of anisotropy shift (non-coincidence effect) on dilution may be explained on the basis of repulsive forces playing a significant role in solute-solvent interactions.
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Affiliation(s)
- Th Gomti Devi
- Department of Physics, North-Eastern Hill University, Shillong 793022, India
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37
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Time-domain calculations of the polarized Raman and two-dimensional infrared spectra of liquid N,N-dimethylformamide. Chem Phys Lett 2005. [DOI: 10.1016/j.cplett.2005.07.114] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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38
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Torii H, Musso M, Giorgini MG. Time-Domain Theoretical Analysis of the Noncoincidence Effect, Diagonal Frequency Shift, and the Extent of Delocalization of the CO Stretching Mode of Acetone/Dimethyl Sulfoxide Binary Liquid Mixtures. J Phys Chem A 2005; 109:7797-804. [PMID: 16834157 DOI: 10.1021/jp052565t] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A time-domain method for simulating vibrational band profiles that simultaneously takes into account both the diagonal and off-diagonal effects is developed and applied to the C=O stretching bands of neat liquid acetone and the acetone/dimethyl sulfoxide (DMSO) binary liquid mixtures. By using this method, it is possible to examine the influence of liquid dynamics on the noncoincidence effect (NCE), which arises from the off-diagonal vibrational interactions, as well as the frequency shifts and band broadening, which are related to both the diagonal and off-diagonal effects. It is shown that the simulations for the C=O stretching bands of acetone in acetone/DMSO binary liquid mixtures on the basis of this method can reproduce the experimentally observed concave curvature of the concentration dependence of the NCE and the unusually large frequency shift of the anisotropic Raman band. The widths of the infrared, isotropic Raman, and anisotropic Raman bands calculated for neat liquid acetone are also in good agreement with those observed. Based on these calculations, the extent of delocalization of the C=O stretching vibrational motions is examined by referring to two quantitative measures of this property, one calculated in the frequency domain and the other in the time domain. It is shown that the extent of delocalization gets larger as the mole fraction of acetone increases, the C=O stretching vibrations being delocalized over a few tens of molecules in neat liquid acetone. It is also shown that the extent of delocalization is related to the quantity called NCE detectability, which is the ratio between the magnitude of NCE and the bandwidth. It is therefore suggested that the extent of delocalization of vibrational motions may be estimated from observable features of Raman band profiles.
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Affiliation(s)
- Hajime Torii
- Department of Chemistry, School of Education, Shizuoka University, 836 Ohya, Shizuoka 422-8529, Japan.
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Giorgini MG, Musso M, Torii H. Concentration-Dependent Frequency Shifts and Raman Spectroscopic Noncoincidence Effect of the CO Stretching Mode in Dipolar Mixtures of Acetone/Dimethyl Sulfoxide. Experimental, Theoretical, and Simulation Results. J Phys Chem A 2005; 109:5846-54. [PMID: 16833919 DOI: 10.1021/jp051067h] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The nu(C=O) Raman band frequencies of acetone have been analyzed to separate the contributions of the environmental effect and the vibrational coupling to the gas-to-liquid frequency shifts of this band and to elucidate the changes in these two contributions upon dilution in DMSO. We have measured the frequencies of the nu((12)C=O) band in acetone/DMSO binary mixtures, the nu((13)C=O) band of the acetone-(13)C=O present as a natural abundance isotopic impurity in these mixtures, and both the nu((12)C=O) and nu((13)C=O) bands in the acetone-(12)C=O/acetone-(13)C=O isotopic mixtures at infinite dilution. These frequencies are compared with those of the nu((12)C=O) band in the acetone/CCl(4) binary mixtures measured previously. We have found the following three points: (i) The negative environmental contribution for the nu((12)C=O) oscillator of acetone completely surrounded by DMSO is reduced in magnitude by +5.5 cm(-1) and +7.8 cm(-1) upon the complete substitution of DMSO with acetone and CCl(4) molecules, respectively, indicating the progressive reduction of the attractive forces exerted by the environment on the nu((12)C=O) mode of acetone. (ii) In DMSO and other solvents, the contribution of the vibrational coupling to the frequency of the isotropic Raman nu((12)C=O) band of acetone becomes progressively more negative with increasing acetone concentration up to a value of -5.5 cm(-1), while the contribution to the frequency of the anisotropic Raman band remains approximately unchanged. The only difference resides in the curvatures of the concentration dependencies of these contributions which depend on the relative solute/solvent polarity. (iii) The noncoincidence effect (separation between the anisotropic and isotropic Raman band frequencies) of the nu(C=O) mode in the acetone/DMSO mixtures exhibits a downward (concave) curvature, in contrast to that in the acetone/CCl(4) mixtures, which shows an upward (convex) curvature. This result is supported by MD simulations and by theoretical predictions and is interpreted as arising from the reduction and enhancement of the short-range orientational order of acetone in the acetone/DMSO and acetone/CCl(4) mixtures, respectively.
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Affiliation(s)
- Maria Grazia Giorgini
- Dipartimento di Chimica Fisica ed Inorganica, Università di Bologna, Viale del Risorgimento 4, I-40136 Bologna, Italy.
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40
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Uemura T, Saito S, Mizutani Y, Tominaga * K. Isotope dilution effects on the hydroxyl-stretch bands of alcohols. Mol Phys 2005. [DOI: 10.1080/00268970412331290986] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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41
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Giorgini MG, Arcioni A, Polizzi C, Musso M, Ottaviani P. Relaxation processes of the liquid crystal ME6N in the isotropic phase studied by Raman scattering experiments. J Chem Phys 2004; 120:4969-79. [PMID: 15267359 DOI: 10.1063/1.1646372] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
We have investigated the Raman profiles of the nu(C[Triple Bond]N) and nu(C=O) vibrational modes of the nematic liquid crystal ME6N (4-cyanophenyl-4(')-hexylbenzoate) in the isotropic phase at different temperatures and used them as probes of the dynamics and structural organization of this liquid. The vibrational time correlation functions of the nu(C[Triple Bond]N) mode, rather adequately interpreted within the assumption of exponential modulation function (the Kubo-Rothschild theory), indicate that the system experiences an intermediate dynamical regime that gets only slightly faster with increasing temperature. However, this theory fails in predicting the non-exponential behavior that the time correlation functions manifest in the long time range (t>3 ps). For this reason we have additionally approached the interpretation of vibrational correlation functions in terms of the theory formulated by Rothschild and co-workers for locally structured liquids. The application of this theory reveals that the molecular dynamics in this liquid crystal in the isotropic phase is that deriving from a distribution of differently sized clusters, which narrows as the temperature increases. Even at the highest temperature reached in this study (87 degrees C above the nematic-isotropic transition), the liquid has not yet achieved the structure of the simple liquid and the dynamics has not reached the limit of the single channel process. The vibrational and orientational relaxations occur in very different time scales. The temperature independence of the orientational dynamics in the whole range from 55 degrees C to 135 degrees C has been referred to the nonhydrodynamic behavior of the system, arising when local pseudonematic structures persist for times longer than the orientational relaxation. The occurrence of the process of resonant vibrational energy transfer between the C=O groups of adjacent molecules has been revealed in the isotropic phase by a slightly positive Raman noncoincidence effect in the band associated with the nu(C=O) mode. A qualitative interpretation is tentatively given in terms of partial cancellation of contributions deriving from structures having opposite orientations of their C=O groups.
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Affiliation(s)
- Maria Grazia Giorgini
- Dipartimento di Chimica Fisica e Inorganica, Universita di Bologna, Viale Risorgimento 4, I-40136 Bologna, Italy.
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42
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Kirillov SA. Anomalous non-coincidence effects in liquids: separation of attraction and repulsion contributions. J Mol Liq 2004. [DOI: 10.1016/j.molliq.2003.09.005] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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43
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Torii H. Extent of Delocalization of Vibrational Modes in Liquids as a Result of Competition between Diagonal Disorder and Off-Diagonal Coupling. J Phys Chem A 2004. [DOI: 10.1021/jp037603s] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Hajime Torii
- Department of Chemistry, School of Education, Shizuoka University, 836 Ohya, Shizuoka 422-8529, Japan
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44
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Investigation of hydrogen bonding and self-association in neat HCONH2 and the binary mixture (HCONH2+CH3OH) by concentration dependent Raman study and ab initio calculations. J Mol Struct 2004. [DOI: 10.1016/j.molstruc.2003.10.030] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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45
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Srivastava SK, Ojha AK, Koster J, Shukla M, Leszczynski J, Asthana B, Kiefer W. Isotopic dilution, self-association, and Raman non-coincidence in the binary system (CH3)2CO+(CD3)2CO reinvestigated by polarized Raman measurement and ab initio calculations. J Mol Struct 2003. [DOI: 10.1016/j.molstruc.2003.07.004] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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46
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MORRESI A, PAOLANTONI M, SASSI P, ALUIGI A. Non-coincidence effect and orientational dynamics in aromatic molecules. Mol Phys 2002. [DOI: 10.1080/00268970210161494] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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47
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Sassi P, Morresi A, Paolantoni M, Cataliotti RS. Structural and dynamical investigations of 1-octanol: a spectroscopic study. J Mol Liq 2002. [DOI: 10.1016/s0167-7322(01)00360-9] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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48
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Torii H. Field-Modulating Modes of Solvents for Describing Electrostatic Intermolecular Vibrational Interactions in Solution. J Phys Chem A 2002. [DOI: 10.1021/jp013573m] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Hajime Torii
- Department of Chemistry, School of Education, Shizuoka University, 836 Ohya, Shizuoka 422-8529, Japan
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49
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Torii H. Influence of Liquid Dynamics on the Band Broadening and Time Evolution of Vibrational Excitations for Delocalized Vibrational Modes in Liquids. J Phys Chem A 2001. [DOI: 10.1021/jp011688k] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Hajime Torii
- Department of Chemistry, School of Education, Shizuoka University, 836 Ohya, Shizuoka 422-8529, Japan
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50
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Collective vibrational effects in hydrogen bonded liquid amides and proteins studied by isotopic substitution. J Mol Struct 2000. [DOI: 10.1016/s0022-2860(00)00477-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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