Deprotonated p-phenylenediamines as noninnocent ligands. Metal-to-ligand spin transfer in the ground state and ligand-to-metal charge transfer in the lowest excited state of low-spin manganese(II) complexes. Inorganic Chemistry, (26)21:3596--3600, 1987. [PUMA: MO amide charge complex complex;ESR complex;electron complex;manganese configuration cyclopentadienylmanganese;deprotonation manganese phenylenediamine transfer]