High-resolution study of the ν1/ν5 and 2ν1/ν1+ν5 P-H stretching bands of PH2D期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

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High-resolution study of the ν₁/ν₅ and 2ν₁/ν₁+ν₅ P-H stretching bands of PH₂D

Authors:	ON Ulenikov ES Bekhtereva OL Petrunina H Bürger

Institution:	^a Laboratory of Molecular Spectroscopy, Physics Department, Tomsk State University, Tomsk 634050, Russia ^b Institute of Atmospheric Optics, Siberian Branch RAS, Tomsk 634055, Russia ^c Anorganische Chemie, FB9, Bergische Universität Wuppertal, D-42097 Wuppertal, Germany

Abstract:	The P-H stretching bands ν₁/ν₅ and 2ν₁/ν₁+ν₅ were recorded using a Bruker 120 HR interferometer with a resolution of 0.0042 and 0.0088 cm⁻¹, respectively, and analyzed. From the fits 33 and 50, respectively, vibrational, rotational, centrifugal distortion, and resonance interaction parameters were obtained. These reproduce 668 and 497 rovibrational energies of the pairs of states ν₁/ν₅ and 2ν₁/ν₁+ν₅ with experimental accuracies, rms=0.00016 and , respectively. “Local mode” behavior of the PH₂ fragment is established and discussed in detail.

Keywords:	Vibration-rotation spectra PH₂D molecule Spectroscopic parameters Local modes
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