Synthesis of 1,3-diphenyltriazenide complexes of aluminium, gallium and indium: Crystal structure of tris(1,3-diphenyltriazenido)aluminium(III)

摘要

The reaction of AlMe3 with 1,3-diphenyltriazene [Hdpt] in toluene gives Al(dpt)3, even when AlMe3 is in large excess. The monomeric structure has been established by X-ray diffraction. Crystals of Al(dpt)3 are monoclinic, space group C2/c with a = 20.587(3), b = 16.005(3), c = 13.236(3) A and [beta] = 119.172(12)[deg], Z = 4, R = 0.067 and Rw = 0.083. The aluminium(III) is coordinated by three chelating triazenido ligands to give a trigonally distorted octahedral geometry. The gallium and indium analogues are also reported.