Journal of Organometallic Chemistry

Synthesis of a tert-butyl substituted bis (silirane) and comparison with its methyl and phenyl analogs

KR Pichaandi, JT Mague, MJ Fink

Index: Pichaandi, Kothanda Rama; Mague, Joel T.; Fink, Mark J. Journal of Organometallic Chemistry, 2011 , vol. 696, # 10 p. 1957 - 1963

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Citation Number: 5

Abstract

The detailed syntheses of a series of substituted bis (silirane) s (Me4C2SiR) 2 {R= Me (1a), Ph (1b), tert-butyl (1c)} are reported. The tert-butyl derivative (1c) shows steric congestion which results in conformational rigidity in solution with respect to Si–Si bond rotation. This contrasts with the methyl (1a) and phenyl (1b) analogs. The rotational barriers of all three bis (silirane) s were examined by Density Functional Theory (DFT) at the B3LYP/6-31G∗ level ...