Coordination ambivalence and electron structure of mono- and binuclear methylcyclopentadienylmanganese dicarbonyl complexes of cyanopyridine and terephthalodinitrile. Journal of Organometallic Chemistry, (333)3:347--365, 1987. [PUMA: ambivalence complex complex;electrochem coordination cyanopyridine methylcyclopentadienyl methylcyclopentadienylmanganese redox terephthalonitrile terephthalonitrile;manganese terephthalonitrile;methylcyclopentadienylmanganese]