Evolution of the spectral component of ice in the OH band of water at temperatures from 13 to 99°C

Autor: Pershin, Sergei M, Bunkin, Aleksei F, Luk, V A
Zdroj: Quantum Electronics; December 2010, Vol. 40 Issue: 12 p1146-1148, 3p
Abstrakt: It is established for the first time by Raman scattering of second-harmonic pulses of an Nd:YAG laser that there are molecular complexes with frequencies of [?]3600, [?]3450, and [?]3200 cm-1 (which are characteristic of dimers, tetramers, and ice-like hexamers observed in H2O molecular beams) in water at temperatures of 13 -- 99degC. The frequency of the ice hexameric component is found to shift only slightly with an increase in the water temperature, whereas its contribution decreases but remains significant, with a simultaneous increase in the contribution of small complexes.
Databáze: Supplemental Index