Accession Number : ADA183364

Title :   Isosbestic Point and Temperature Dependence of the nu sub 2 + nu sub L Raman Combination from Liquid Water.

Descriptive Note : Technical rept.,

Corporate Author : HOWARD UNIV WASHINGTON DC DEPT OF CHEMISTRY

Personal Author(s) : Walrafen,G E ; Hokmabadi,M S ; Yang,W H

PDF Url : ADA183364

Report Date : 28 Jul 1987

Pagination or Media Count : 31

Abstract : A new component has been found near 2050/cm in the Raman spectrum or liquid water. This component refers to the two-phonon combination nu sub 2 + nu sub L(where 2 refers to intramolecular bending and L to libration), but the nu sub 2 and nu sub L fundamental involved in this two-phonon component arise from water molecules hydrogen bonded to three rather than to four nearest neighbors. The nu sub 2 bending fundamental from three bonded water molecules was also uncovered. The new Raman data are in excellent agreement with published infrared data and theoretical calculations. Keywords: Water; Raman spectroscopy; Isosbestic point.

Descriptors :   *OPTICAL DATA, *RAMAN SPECTRA, *LIQUIDS, *WATER, BONDED JOINTS, HYDROGEN, INFRARED RADIATION, MOLECULES, RAMAN SPECTROSCOPY, TEMPERATURE

Subject Categories : Physical Chemistry

Distribution Statement : APPROVED FOR PUBLIC RELEASE