T. Beineke, L. Martin
Nov 1, 1969
Citations
0
Influential Citations
13
Citations
Journal
Journal of Organometallic Chemistry
Abstract
Abstract The crystal structure of 2-[3,4,5,6-tetrakis(trimethylsilyl)-1-cyclohexen-1-yl]-heptamethyltrisilane has been determined from three-dimensional single-crystal X-ray diffraction data collected by counter methods. The crystals are orthorhombic, space group Pna 2 1 with unit cell parameters a = 24.081 ± 0.008, b = 9.839 ± 0.007, c = 15.973 ± 0.009 A, ρ o = 0.967, ρ c = 0.984 g/cm 3 for Z = 4. Block-diagonal anisotropic least-squares refinement led to a conventional R of 0.07 for 1225 observed reflections. The molecular structure is composed of a tetrasubstituted cyclohexene ring with the carbon-carbon double bond vinylic to the trisilane moiety. The average Si-Si bond distance is 2.35 ± 0.01 A, and the average Si-C( sp 3 ) bond distance is 1.88 ± 0.04 A.