Add time:08/06/2019         Source:sciencedirect.com

The infrared and Raman spectra of liquid Si2Cl6 combined with accurate polarization measurements eliminate the high barrier staggered D3d structural model and favor the D3h or D3h' models for this molecule. The eleven active fundamentals for the D3h or the D3h' point groups were located and assigned. These results agree with the low internal barrier model found from electron diffraction studies and provide information for the evaluation of the mean square amplitudes of vibration. These can be used with the diffraction results to more accurately assess the barrier to internal rotation.

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