Synonyms: Cobalt,dichloro[1,2-ethanediylbis[diphenylphosphine]-P,P']-, (T-4)-;Cobalt, dichloro[ethylenebis[diphenylphosphine]]-(8CI);Phosphine, 1,2-ethanediylbis[diphenyl-, cobalt complex;(1,2-Bis(diphenylphosphino)ethane)dichlorocobalt;Dichloro[1,2-ethanediylbis[diphenylphosphine]]cobalt;Dichloro[bis(diphenylphosphino)ethane]cobalt;Dichloro[ethylenebis[diphenylphosphine]]cobalt;[1,2-Bis(diphenylphosphino)ethane]cobalt(II) chloride;