Co-ordination compounds of indium. Part XXV. Dihalogeno(acetylacetonato)indium(III) complexes

The indium(I) halides react with refluxing acetylacetone (Hacac) to give a mixture of In(acac)3 and InX2(acac). The latter compound could not be isolated in a pure form, but reactions with nitrogen donors give the crystalline solids [InX2(acac) LII]EtOH (LII= 2,2′-bipyridyl or 1,10-phenanthroline) and [InX2(acac)L2]EtOH (L = pyridine or [2H5] pyridine). The spectral properties confirm the formulation of this group of compounds as six-co-ordinate indium(III) complexes with an InX2O2N2 kernel.