First structural characterization of silicon–arsenic and silicon–phosphorus multiple bonds in silylated silylidene-arsanes and -phosphanes; X-ray structure of a tellura-arsasilirane derivative

Abstract

The molecular structures of the 1-tert-butyl-1-isityl-3,3,3-triisopropyldisilaphosphene 4(isityl = 2,4,6-triisopropylphenyl), the analogous disilaarsene 5, and the corresponding tellura-arsasilirane 6(formed by reaction of 5 with elemental tellurium) are established by X-ray crystallographic analysis.