Line intensities of the phosphine dyad at 10 μm

被引：23
作者：
Brown, LR
Sams, RL
Kleiner, I
Cottaz, C
Sagui, L
机构：
[1] CALTECH, Jet Prop Lab, Pasadena, CA 91109 USA
[2] Pacific NW Natl Lab, Richland, WA 99352 USA
[3] Univ Paris 11, CNRS, Unite Propre, F-91405 Orsay, France
来源：
JOURNAL OF MOLECULAR SPECTROSCOPY | 2002年 / 215卷 / 02期
关键词：
line intensities; PH3; infrared fundamentals; dyad;
D O I：
10.1006/jmsp.2002.8638
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：
Over 1000 measured line intensities of phosphine (PH3) are reported for the region 830 to 1310 cm(-1), which contains the two lowest fundamentals in Coriolis interaction. These measurements are fitted to 1.5% for nu(2) at 992.13 cm(-1) and 2.1 % for nu(4) at 1118.31 cm(-1), respectively, using five intensity parameters that include three Herman-Wallis type terms. In addition, some 60 intensities of the 2nu(2) - nu(2) hot band are modeled. The corresponding assignments and line positions of the dyad from previous work [L. Fusina and G. Di Lonardo, J. Mol. Struct. 517-518, 67-78 (2000)] are combined with the present intensity study to provide an improved PH3 database for planetary studies. The total integrated intensity for the dyad is 156.(4) cm(-2) atm(-1) at 296 K. (C) 2002 Elsevier Science (USA).
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页码：178 / 203
页数：26
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