Impulsive stimulated thermal scattering study of structural relaxation in supercooled glycerol

被引：46

作者：

Paolucci, DM ^{[1
]}

Nelson, KA ^{[1
]}

机构：

[1] MIT, Dept Chem, Cambridge, MA 02139 USA

来源：

JOURNAL OF CHEMICAL PHYSICS | 2000年 / 112卷 / 15期

关键词：

D O I：

10.1063/1.481248

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：

Impulsive stimulated thermal scattering (ISTS) studies are conducted on glycerol in the supercooled liquid range. ISTS is used to measure the Debye-Waller factor, and to characterize the structural relaxation dynamics in the range from a few nanoseconds to hundreds of microseconds. The results are compared to predictions of mode-coupling theory (MCT), and suggest that inclusion of important microscopic degrees of freedom may be needed for MCT to successfully describe hydrogen-bonded liquids like glycerol. (C) 2000 American Institute of Physics. [S0021-9606(00)50414-0].

引用

页码：6725 / 6732

页数：8

共 35 条

[21] Molecular reorientation in ortho-carborane studied by dielectric spectroscopy [J].