Vibrational spectra and normal coordinate calculations for (CH3)3GECN and (CD3)3GECN

Infrared spectra of (CH₃)₃GeCN and (CD₃)₃GeCN have been obtained over the range of 4000–100 cm^?1 from solutions of benzene and dichloromethane, and solid films deposited on windows at liquid nitrogen temperature. Raman spectra have been photographed in dichloromethane solution. Assignments for all fundamentals except the internal torsions have been made, and normal coordinate calculations carried out by a symmetry force field to confirm the proposed assignments.