Methyl and arylchalcogenolate complexes of cadmium in a sulfur rich coordination environment: syntheses and structural characterization of the tris(2-mercapto-1-tert-butylimidazolyl)hydroborato cadmium complexes [Tm-But]CdMe, and [Tm-But]CdEAr (E = O

摘要

A series of arylchalcogenolate complexes of cadmium supported by tris(2-mercapto-1-tert-butylimidazolyl)hydroborato ligation, namely [Tm-But]CdEAr (EAr = OC6H3Ph2, SPh, SePh, TePh), has been synthesized from [Tm-But]CdMe; structural characterization by X-ray diffraction indicates that the variation in Cd-EAr bond lengths is similar to that of Zn-EAr and correlates closely with the covalent radius of the chalcogen, in marked contrast to the large variation in M-OAr and M-SAr bond lengths observed for other metals (Zr and Sm).