The synthesis of C Si(CH3)(2)X (3)SiX3 compounds (X = H, Cl, Br and OH) and the molecular structure of C Si(CH3)(2)H (3)SiH3 in the gas phase; a study by electron diffraction and ab initio molecular orbital calculations

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Abstract / Description of output

A series of new hexafunctional tetrasilylmethane derivatives, C[Si(CH3)(2)X](3)SiX3, have been prepared. In addition a comprehensive structural study of the parent compound C[Si(CH3)(2)H](3)SiH3 has been undertaken. A full search of the potential energy surface has been performed ab initio. Results indicate the presence of a total of eleven distinct conformational minima with a total energy range of only 3 kJ mol(-1), with evidence for appreciable energy barriers to internal rotation. The analysis of gas-phase electron diffraction data has been undertaken for this eleven-conformer model and a satisfactory fit has been obtained.
Original languageEnglish
Pages (from-to)2293-2301
JournalDalton Transactions
Issue number14
Publication statusPublished - 1999

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