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Updated: Aug 30, 2026

Interfacial Molecular-level Structures of Polymers and Biomacromolecules Revealed via Sum Frequency Generation Vibrational Spectroscopy
Published on: August 13, 2019
Vibrational frequencies and structure determination of silylgermane
1U.S. Army Edgewood Chemical and Biological Center, AMSSB-RRT-DP, Aberdeen Proving Ground, MD 21010-5424, USA. james.jensen@sbccom.apgea.army.mil
Abstract:
The normal mode frequencies and corresponding vibrational assignments of silylgermane are examined theoretically using the GAUSSIAN 98 set of quantum chemistry codes. All normal modes were successfully assigned to one of seven types of motion predicted by a group theoretical analysis (Si-H stretch, Ge-H stretch, Si-Ge stretch, H-Si-H bend, H-Ge-H bend, SiH(3) wag/GeH(3) wag and Si-Ge torsion) utilizing the C(3v) symmetry of the molecule. Predicted infrared and Raman intensities are presented. Molecular orbitals are presented and bonding is examined in terms of the molecular orbitals.
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