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Molecular Structure of 1,2-bis(trifluoromethyl)-1,1,2,2-tetramethyldisilane in the Gas, Liquid, and Solid Phases: Unusual Conformational Changes Between Phases

Molecular Structure of 1,2-bis(trifluoromethyl)-1,1,2,2-tetramethyldisilane in the Gas, Liquid, and Solid Phases: Unusual Conformational Changes Between Phases

Sarah L Masters, Heather E Robertson, Derek A Wann, Margit Hölbling, Karl Hassler, Ragnar Bjornsson, Sunna Ó Wallevik, Ingvar Arnason

J Phys Chem A. 2015 Mar 5;119(9):1600-8.

PMID: 25325400

Abstract:

The molecular structure of 1,2-bis(trifluoromethyl)-1,1,2,2-tetramethyldisilane has been determined in three different phases (solid, liquid, and gas) using various spectroscopic and diffraction techniques. Both the solid-state and gas-phase investigations revealed only one conformer to be present in the sample analyzed, whereas the liquid phase revealed the presence of three conformers. The data have been reproduced using computational methods and a rationale is presented for the observation of three conformers in the liquid state.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP814982	1,1,2,2-Tetramethyldisilane		814-98-2	Price

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