Over 1000 measured line intensities of phosphine (PH3) are reported for the 830 to 1310 cm-1 region that contains the two lowest fundamentals in Coriolis interaction. These measurements are fitted to 1.5% for v2 at 992.13 cm-1 for v4 at 1118.31 cm-1, respectively, using five intensity parameters that include three Herman-Wallis type terms. In addition, some 60 intensities of the 2v2-v2 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-2atm-1 at 296 K.
Revised: May 24, 2004 |
Published: October 1, 2002
Citation
Brown L.R., R.L. Sams, I. Kleiner, C. Cottaz, and L. Sagui. 2002.Line Intesities of the Phosphine Dyad at 10 mu m.Journal of Molecular Spectroscopy 215, no. 2:178-203.PNNL-SA-35758.