THE MOLECULAR STRUCTURE OF TRIMETHYLSILYLISOTHIOCYANATE IN THE GAS PHASE, DETERMINED BY ELECTRON DIFFRACTION

Article abstract of DOI:10.1016/0022-2860(87)85044-5

The structure of gaseous trimethylsilylisothiocyanate has been redetermined by electron diffraction.In the r_a structure, the bondlengths are Si-C 186.6(3), Si-N 174.3(6), N=C 119.1(6), C=S 158.7(4) and C-H 110.0(5) pm, and the angles are NSiC 108.8(7), SiNC 158.2(10) and SiCH 108.9(8) deg.There is a small apparent deviation from linearity (ca. 4 deg) in the NCS group, but it is likely that the SiNCS skeleton is pseudolinear, as is in related molecules.