ISSN:
1089-7690
Source:
AIP Digital Archive
Topics:
Physics
,
Chemistry and Pharmacology
Notes:
A definitive demonstration of inhomogeneous vibrational line broadening in a liquid is made from Raman echo measurements of the sym-methyl stretching vibration of CH3I in a 50% mixture with CDCl3. The lifetime of the inhomogeneity is found to be 4–7 ps. The source of the inhomogeneity is identified as concentration fluctuations within the first solvation shell. The range and time scale of the interaction are consistent with the predictions of Schweizer and Chandler [J. Chem. Phys. 76, 2296 (1982)] for an attractive force interaction.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.465344