Synonyms: Cobalt,[1,1'-bis(diphenylphosphino)ferrocene-P,P']dichloro-, (T-4)-; Ferrocene, 1,1'-bis(diphenylphosphino)-,cobalt complex; (1,1'-Bis(diphenylphosphino)ferrocene)dichlorocobalt;Dichloro[ferrocene-1,1'-diylbis(diphenylphosphine-P)]cobalt(II)