CMe3SiX3 and SiMe3SiX3 (X=H, F, Cl, Br, I): a combined ab initio and vibrational spectroscopic study
作者:Robert Zink、Karl Hassler
DOI:10.1016/s1386-1425(98)00189-9
日期:1999.2
The infrared and Raman vibrational spectra of the tert-butylsilanes CMe3SiX3 and disilanes SiMe3SiX3 (X = H, F, Cl, Br, I) have been measured and assigned with the help of normal coordinate analyses and potential energy distribution analyses employing ab initio optimized geometries and ab initio symmetry force constants. Scaled theoretical SiX and SiSi force constants are smaller than values estimated by extrapolation from spectroscopic force constants of related disilanes. The synthesis of the novel compound SiMe3SiI3 and the residual disilanes SiMe3SiX3 (X = H, F, Cl, Br) is described. (C) 1999 Elsevier Science B.V. All rights reserved.