The co-ordination chemistry of manganese. Part II. Some pentachloromanganates(III)

Abstract

The complexes M₂MnCl₅(M = NMe₄, NMe₃H, Cs), M₂MnCl₅,H₂O (M = NH₄, K, Rb), and [Nme₂H₂]₂ MnCl₅,EtOH have been prepared and their properties compared with those of [NEt₄]₂MnCl₅ and M′MnCl₅(M′= phenH₂, bipyH₂); [NMeH₃]₂MnCl₅ was difficult to isolate in a pure state. The complexes were characterized by magnetic measurements and by electronic and i.r. spectroscopy. All the complexes appear to be five-co-ordinate in acetone solution, and all except [NMe₂H₂]₂MnCl₅,EtOH and ‘[NMeH₃]₂MnCl₅’ are structurally similar in the solid state.