Abstract: | Vibrational Spectra and Force Constants of Cl3SiP(CH3)2 and Cl3SiAs (CH3)2 The i.r. and Raman spectra of Cl3SiP(CH3)2 and Cl3SiAs (CH3)2 have been recorded and assigned. A normal coordinate analysis has been made using a modified valence force field. The SiP force constant is slightly higher than those of alkylsilylphosphines, whereas a similar effect is not found for the SiAs bond. |