Nitro group asymmetric stretching mode lifetimes of molecules used in energetic materials

被引：27

作者：

Aubuchon, CM ^{[1
]}

Rector, KD ^{[1
]}

Holmes, W ^{[1
]}

Fayer, MD ^{[1
]}

机构：

[1] Stanford Univ, Dept Chem, Stanford, CA 94305 USA

来源：

CHEMICAL PHYSICS LETTERS | 1999年 / 299卷 / 01期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1016/S0009-2614(98)01241-X

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：

Picosecond infrared pump-probe measurements of the vibrational relaxation of the nitro (NO(2)) functional group asymmetric stretch (similar to 1580 cm(-1)) of several molecules used in energetic materials, TNAZ, RDX, HMX, and CL-20 (abbreviations defined in text), and nitromethane, are presented. In addition, a temperature-dependent study was performed between 50 and 298 EC on TNAZ. FLU of the lifetimes fall in the range of 2-6 ps with the exception of nitromethane, which has a lifetime of 16 ps. The temperature dependence of TNAZ is flat and solvent independent, suggesting an intra-molecular relaxation pathway that does not involve low-frequency modes. (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：84 / 90

页数：7

共 26 条

[1] Recent trends in high-energy materials [J].