Studies of vibrational relaxation in liquid methyl iodide

Döge, G.; Arndt, R.; Yarwood, J.

doi:10.1080/00268978400101291

Cited by 64 publications

(20 citation statements)

References 17 publications

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“…Bandwidth narrowing occurring upon isotopic and chemical dilution, observed in several occasions, [6][7][8][9] represents convincing evidence for the contribution from the resonant intermolecular coupling. Such narrowing is attributable to the progressive decrease with dilution of the second moment of the contribution of the coupling to the spectral distribution.…”

Section: Introductionmentioning

confidence: 72%

Concentration dependence of the band profile parameters for the ν3(12C=O) Raman band of acetone in acetone–CCl4 binary mixtures: Experimental and Monte Carlo simulation results and their interpretation

Musso

Torii

Giorgini

et al. 1999

The Journal of Chemical Physics

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The concentration dependence of specific band profile parameters, i.e., bandwidth and asymmetry, of the isotropic and anisotropic components of the 3 ( 12 CvO) Raman band of acetone is investigated in the acetone-CCl 4 binary mixtures. Emphasis is mainly placed upon the comparison of the results obtained from Monte Carlo simulations with the experimental results obtained by Raman spectroscopy. The results on the concentration dependence of the bandwidth are interpreted within the lineshape theory of Bratos and Tarjus, while the results on the concentration dependence of the band asymmetry are examined with the help of the theoretical predictions given by Knapp and by Knapp and Fischer. We have found a good qualitative agreement between all the results.

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Section: Introductionmentioning

confidence: 72%

Concentration dependence of the band profile parameters for the ν3(12C=O) Raman band of acetone in acetone–CCl4 binary mixtures: Experimental and Monte Carlo simulation results and their interpretation

Musso

Torii

Giorgini

et al. 1999

The Journal of Chemical Physics

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“…The fact that v2 of CH31 is very intense in IR absorption, gave rise to the assumption that transition dipole interaction is the main coupling mechanism. This assumption was confirmed by comparison of experimental and theoretical 2"d moments [4,10]. Logan presented an expression which can be used to get the isotopic dilution shift.…”

Section: Discussionmentioning

confidence: 85%

“…The relative accuracy is surely better. The usual method to get the interaction fluctuation time zn from the vibrational correlation function [4,7,10] is based on a model: For G,(t) one mostly uses a cumulant expansion up to the 2"d cumulant and the assumption that the correlation function for the resonant interaction energy hQ, is a simple exponential exp( -t/zn). In spite of all these problems we present experimental values in Table 2.…”

Section: Discussionmentioning

confidence: 99%

Pressure Dependence of Resonant Intermolecular Vibrational Coupling etc.in Isotropic Raman Scattering of the v₂ Mode of CH₃I

Döge

Lindner

1990

Ber Bunsenges Phys Chem

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Dipole Moment / Liquids J Molecular InteractionsThe pressure dependence of the isotopic dilution effect on the Raman band of the v2 mode of CH31 and CD31 has been investigated. In this way the resonant intermolecular vibrational coupling term has been separated from the other vibrational relaxation terms. It could be shown that the density dependence of this term is stronger then it is predicted from recent theories. The possible reasons for the discrepancy are discussed. The pressure dependence of a dynamical parameter zn is also obtained from the vibrational relaxation functions. Spectroscopy, Raman

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“…The coupling potential V can be expanded in a Taylor series 18,19 as a function of normal coordinates Q…”

Section: Resultsmentioning

confidence: 99%

Vibrational relaxation study in carbonyl containing molecule: role of hydrodynamic and dispersion forces

Devi

2007

J Raman Spectroscopy

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The isotropic Raman component of the C=O stretching mode of ethyl acetate (EA) was analyzed using various polar and nonpolar solvents. It was found that the bandshape approaches towards Lorentzian at high dilution using the curve-fitting method. The isotropic Raman band was also analyzed by estimating the correlation coefficient with reference to the Lorentzian lineshape using a simple method of linear-curve fitting. The effects of dispersion and hydrodynamic forces on bandwidth were studied in details. The vibrational relaxation rate was studied using certain parameters and it was found that the microscopic based parameter can explain the complexities occurring in solute-solvent interactions.

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Studies of vibrational relaxation in liquid methyl iodide

Cited by 64 publications

References 17 publications

Concentration dependence of the band profile parameters for the ν3(12C=O) Raman band of acetone in acetone–CCl4 binary mixtures: Experimental and Monte Carlo simulation results and their interpretation

Concentration dependence of the band profile parameters for the ν3(12C=O) Raman band of acetone in acetone–CCl4 binary mixtures: Experimental and Monte Carlo simulation results and their interpretation

Pressure Dependence of Resonant Intermolecular Vibrational Coupling etc.in Isotropic Raman Scattering of the v₂ Mode of CH₃I

Vibrational relaxation study in carbonyl containing molecule: role of hydrodynamic and dispersion forces

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Studies of vibrational relaxation in liquid methyl iodide

Cited by 64 publications

References 17 publications

Concentration dependence of the band profile parameters for the ν3(12C=O) Raman band of acetone in acetone–CCl4 binary mixtures: Experimental and Monte Carlo simulation results and their interpretation

Concentration dependence of the band profile parameters for the ν3(12C=O) Raman band of acetone in acetone–CCl4 binary mixtures: Experimental and Monte Carlo simulation results and their interpretation

Pressure Dependence of Resonant Intermolecular Vibrational Coupling etc.in Isotropic Raman Scattering of the v2 Mode of CH3I

Vibrational relaxation study in carbonyl containing molecule: role of hydrodynamic and dispersion forces

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Pressure Dependence of Resonant Intermolecular Vibrational Coupling etc.in Isotropic Raman Scattering of the v₂ Mode of CH₃I