Crystal and molecular structure of [iminobis(ethyleneoxy)]diphenylsilane: a five-co-ordinate silicon compound

Abstract

Crystals of the title compound (V) are orthorhombic, space group P2₁2₁2₁, with a= 9·056(7), b= 11·904(10), c= 14·175(13)Å. Monochromated diffractometer data for 1341 planes were used to solve the structure by Patterson and Fourier methods and were refined by least squares to a final R of 0·070. The formal eight-membered ring is bridged by a silicon–nitrogen bond of 2·301(6)Å, and the silicon atom adopts a trigonal bipyramidal geometry of approximate symmetry C_s.