Raman and infrared spectra and normal coordinate treatments of the hypophosphite and the dideuterohypophosphite ions

Raman displacements, relative intensities, depolarization factors and infrared wave numbers have been obtained for the sodium, potassium, and barium salts of hypophosphorous and dideuterohypophosphorous acids, respectively, at room temperature. A critical examination of the data was made and the most probable values selected. Results of the normal coordinate treatments (FG matrix method) on the basis of the C2v symmetry are given along with a satisfactory assignment of observed Raman and infrared bands. These results were found to be consistent with the isotopic product rule.