Diode laser spectroscopy of the ν13 band of benzene cooled in a supersonic jet

被引：8
|
作者：
Uskola, A [1 ]
Basterretxea, FJ [1 ]
Castaño, F [1 ]
机构：
[1] Univ Basque Country, Fac Ciencias, Dept Quim Fis, E-48080 Bilbao, Spain
来源：
JOURNAL OF MOLECULAR SPECTROSCOPY | 1999年 / 198卷 / 02期
关键词：
diode laser spectroscopy; supersonic jet; benzene nu(13) band;
D O I：
10.1006/jmsp.1999.7979
中图分类号：
O64 [物理化学（理论化学）、化学物理学]; O56 [分子物理学、原子物理学];
学科分类号：
070203 ; 070304 ; 081704 ; 1406 ;
摘要：
The diode laser absorption spectrum of the nu(13) band of benzene cooled in a supersonic expansion has been recorded with the help of a multipass optical system built inside the vacuum chamber. Transitions from low J, K values (0-10) are reported for the first time for this band: The observed frequencies agree with the ones computed with previously existing spectroscopic constants. The rotational temperature of the expansion has been evaluated to be 8 +/- 5 K when using He as buffer gas at a stagnation pressure of 1.5 bar. This value lowers in 1:10 mixtures of Ar:He at the same pressure. The effect of the carrier gas on the linewidth is also discussed. (C) 1999 Academic Press.
引用
收藏
页码：429 / 434
页数：6
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