Terahertz absorption measurement for gas-phase 2,4-dinitrotoluene from 0.05 THz to 2.7 THz

被引：21

作者：

Foltynowicz, Robert J.

Allman, Ronald E.

Zuckerman, Eric

机构：

[1] Sandia Natl Labs, Albuquerque, NM 87123 USA

[2] Augusta State Univ, Dept Chem & Phys, Augusta, GA 30904 USA

来源：

CHEMICAL PHYSICS LETTERS | 2006年 / 431卷 / 1-3期

关键词：

D O I：

10.1016/j.cplett.2006.09.058

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：

We report the first known vapor-phase spectrum of 2,4-dinitrotoluene (DNT) from 0.05 THz to 2.7 THz utilizing pulsed terahertz time-domain spectroscopy. We observed a broad-band absorption profile from 50 GHz to 600 GHz, peaking at 240 GHz. This broad absorption profile corresponds to DNTs pure rotational spectrum, which was confirmed by asymmetric top model calculations. Superimposed on the broad absorption profile, we observed discrete structure that extended to the higher THz frequencies. It is our contention that these features maybe related to the internal rotor motions of the NO2 and CH3 groups in DNT. (c) 2006 Elsevier B.V. All rights reserved.

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页码：34 / 38

页数：5

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