Bis(phosphinimino)amide Supported Borondihydride and Heteroleptic Dihalo Compounds of Group 13

Abstract

AbstractThe reaction of tetraphenyldiphosphazane (Ph2P)2NH with mesityl azide 2,4,6‐Me3C6H2‐N3 affords a new [N,N′] chelating ligand, [HN(Ph2PN(2,4,6‐Me3C6H2))2] (LH). The ligand can be easily deprotonated by using nBuLi or Li[N(SiMe3)2] in Et2O to yield [{N(Ph2PN(2,4,6‐Me3C6H2))2}Li·OEt2] (1). The reaction of LH with AlMe3 and BH3·SMe2, respectively, gives the corresponding mononuclear complexes [{N(Ph2PN(2,4,6‐Me3C6H2))2}AlMe2] (2) and a rare borondihydride [{N(Ph2PN(2,4,6‐Me3C6H2))2}BH2] (3). Similarly, reaction of 1 with the trihalides, MX3, of group 13 elements afford the corresponding dihalo complexes, [{N(Ph2PN(2,4,6‐Me3C6H2))2}MX2] [M = B, X = F (4); M = Al, X = Cl (5); M = Ga, X = Cl (6); M = In, X = Br (7)]. All the complexes reported in this work have been isolated in good yields and are expected to serve as useful synthons in a number of reactions. The solid‐state structure of LH and 1–7 have been investigated by single‐crystal X‐ray structural analysis.