RAMAN-SPECTROSCOPIC INVESTIGATION OF THE DYNAMICS OF UREA-WATER COMPLEXES

被引：79

作者：

HOCCART, X

TURRELL, G

机构：

[1] Laboratoire de Spectrochimie Infrarouge et Raman (CNRS, UPR A2631L), Université des Sciences et Technologies de Lille

来源：

JOURNAL OF CHEMICAL PHYSICS | 1993年 / 99卷 / 11期

关键词：

D O I：

10.1063/1.465626

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The hydration of urea via hydrogen-bond formation was found to have a significant effect on the observed Raman band shapes. An analysis indicates that, on the average, one molecule of water is carried along with a solute molecule during its reorientational motion (tau(R) almost-equal-to 2.5 ps). Vibrational dephasing of the nu4 vibration tau(omega) almost-equal-to 0.2 ps) is independent of concentration and appears to decrease slightly with increasing temperature. No evidence of urea dimer formation was detected.

引用

页码：8498 / 8503

页数：6

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