The ground state rotational spectrum of PH3 has been reanalyzed taking into account recently published very accurate data from sub-Doppler and conventional absorption spectroscopy measurements as well as previous data from the radio-frequency to the far-infrared regions. These data include Delta(J) = Delta(K) = 0 transitions between A1 and A2 levels, Delta(J) = 0, Delta(K) = 3 transitions as well as regular Delta(J) = 1, Delta(K) = 0 rotational transitions. Hyperfine splitting caused by the 31P and 1H nuclei has been considered, and the treatment of the A1/A2 splitting has been discussed briefly. Improved spectroscopic parameters have been obtained. Interestingly, the most pronounced effects occured for the hyperfine parameters.
@article{arxiv.1305.1138,
title = {Spectroscopic parameters of phosphine, PH3, in its ground vibrational state},
author = {Holger S. P. Müller},
journal= {arXiv preprint arXiv:1305.1138},
year = {2013}
}
Comments
6 pages, no figure, 1 table, Journal of Quantitative Spectroscopy and Radiative Transfer, accepted