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High resolution study of the 6ν1 P–H stretching band of the PHD2 molecule

✍ Scribed by O.N. Ulenikov; E.S. Bekhtereva; T.D. Homiak; T.R. Huet; F. Herregodts; H. Bürger; W. Jerzembeck

Publisher
Elsevier Science
Year
2003
Tongue
English
Weight
198 KB
Volume
222
Category
Article
ISSN
0022-2852

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✦ Synopsis

The high resolution spectrum of a phosphine gas mixture containing PHD 2 was recorded at room temperature in the 12 550-12 770 cm À1 region. A high sensitivity laser photoacoustic spectrometer consisting of a longitudinal resonant cell coupled to a Ti:sapphire ring laser was employed. More than 600 transitions were assigned to the 6m 1 overtone band of PHD 2 up to J max ¼ 20, K max a ¼ 6. A Hamiltonian model developed up to the octic centrifugal distortion terms was used. Seven rotational and centrifugal distortion parameters were fitted, the other ones being fixed to their values linearly extrapolated from m 1 and 2m 1 . The derived parameters reproduce the initial data within the experimental uncertainties. The isolated character of the P-H bond is confirmed.

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