Vibrational frequencies and structural determination of digermyl sulfide

The normal mode frequencies and corresponding vibrational assignments of digermyl sulfide in C2v symmetry are examined theoretically using the Gaussian 98 set of quantum chemistry codes. All normal modes were successfully assigned to one of six types of motion (Ge-H stretch, Ge-S stretch, Ge-S-Ge bend, H-Ge-H bend, GeH3 wag, and GeH3 twist) predicted by a group theoretical analysis. Comparing the vibrational frequencies with IR and Raman spectra available in the literature, scaling factors are derived. Predicted infrared and Raman intensities are reported.