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Spectra and structure of organophosphorous compounds. XII: Infrared and Raman Spectra of (CH 3 ) 2 PH and (CD 3 ) 2 PH
Author(s) -
Durig J. R.,
Saunders J. E.
Publication year - 1975
Publication title -
journal of raman spectroscopy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.748
H-Index - 110
eISSN - 1097-4555
pISSN - 0377-0486
DOI - 10.1002/jrs.1250040202
Subject(s) - raman spectroscopy , chemistry , infrared , infrared spectroscopy , spectral line , hydrogen , hydrogen bond , phosphorus , degenerate energy levels , analytical chemistry (journal) , crystallography , molecule , organic chemistry , physics , optics , quantum mechanics , astronomy
The vibrational spectra of (CH 3 2 PH) and (CD 3 ) 2 PH have been studied and assignments made. In the infrared, the region 4000–33 cm −1 was recorded for the gaseous and solid states whereas the Raman spectra from 3500–10 cm −1 in the gaseous, liquid, and solid states were observed. There is some evidence of weak hydrogen bonding based on the behavior of the phosphorus‐hydrogen stretching and bending modes. There also appears to be considerable interaction between the metnyl rocking and phosphorus‐carbon stretching modes. The a ″ and a ′ torsional modes appear to be accidentally degenerate at 182 and 142 cm −1 for the ‘light’ and ‘heavy’ compounds, respectively, which gives barriers of 2.14 and 2.30 kcal mole −1 , respectively.