Borane anions with bridging cyanide ligands; preparation and properties of derivatives of [B3H8]– and [B9H14]–
Abstract
A series of cyanide-bridged derivatives of the arachno-octahydrotriborate(1–) and arachno-tetradecahydrononaborate(1–) ions, [B3H8]– and [B9H14]– respectively, have been prepared using chemical and electrochemical methods. Compounds prepared include the triborate species [B3H7(NC)B3H7]– and its substituted derivatives, [B3H6Cl(NC)B3H7]– and [B3H6Cl(NC)B3H6Cl]–, together with the ions [B3H7(NC)BH2(NC)BH3]– and [B3H7(NC)BPh3]–. The ions [B3H7(NC)BH2(CN)]– and [B3H7(NC)BH2(CN)B3H7]– have also been obtained. The nonaborate derivatives include [B9H13(NC)BPh3]–, [B9H13(NC)BH2(NC)BH3]–, [B9H13(NC)BH2(CN)]–, and [B9H13(NC) BH2(CN) B9H13]–.