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

Abstract

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) L^II]EtOH (L^II= 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.