BIS-AMIDO-COMPLEXES OF HEAVIER GROUP-15 METAL CHLORIDES WITH THE STERICALLY HINDERED, N-FUNCTIONALIZED AMIDO LIGAND, [(2-(6-ME)C5H3N)NSIME3](-)

The reaction of the lithium amide, [2-(6-methyl)pyridyl] trimethylsily lamido-lithium, with antimony(III) or bismuth(III) trichloride in diet hyl ether gives the bis-amido antimony(III) or bismuth(III) chloride [ {2-(6-Me)C5H3N}NSiMe3]MCl, [M = Sb (1) or Bi (2)] as colourless or yel low prisms respectively. The antimony complex is monomeric in the soli d state whereas the bismuth complex is dimeric with bridging chlorides . (C) 1998 Elsevier Science Ltd. All rights reserved.