Direct synthesis of tris(acetylacetonato)manganese(III)
A concentrated solution of K[MnO4] undergoes a ready reaction with acetylacetone, in the absence of any buffer, giving a very high yield of the title compound, [Mn(acac)3]. The pH of the solution, recorded immediately after the formation of crystalline [Mn(acac)3], was found to be ca. 5. Electron impact induced mass spectrometry showed the compound to be monometric.