Abstract: | Vibrational Spectra and Force Constants of the Series OP(N(CH3)2)3 – OP(CH3)3 and SP(N(CH3)2)3 – SP(CH3)3 The vibrational spectra (IR and Raman) of the compounds of the title series are recorded and assigned to the normal vibrations. By a simplified force field the valence force constants are calculated and discussed. The results are compared with those of the NMR spectroscopy. |