Hypervalent silicon via thermolysis of a cadmium amide: thermally stable magnesium and zinc amides [ML2], L = N(8-quinolyl)(SiMe3)
Abstract
Structurally authenticated N-functionalized amides [ML2], L = N(8-quinolyl)(SiMe3), derived from the reaction of 8-(trimethylsilylamino)quinoline with MgBunBus or ZnEt2 in hexane are sublimable in vacuo at 175 °C; the corresponding cadmium analogue, derived from CdCl2 and LiL, decomposes at ca. 240 °C in vacuo yielding CdMe2 and a novel dimeric five coordinate silicon species [Me2Si(µ-N–C9H6N)(µ-N–C9H6N)SiMe2] possessing an Si2N2 ring system, Si–Nbridging(mean) 1.77 Å, Si–Nneutral 2.33(1)Å.