THE USE OF BIDENTATE PHOSPHINE LIGANDS IN THE SYNTHESIS OF IRON-RHODIUM HETEROBIMETALLIC COMPLEXES.

Article abstract of DOI:10.1016/S0022-328X(00)99644-X

Treatment of Fe(CO)3(dppee) (1) (dppee = 1,1-bis(diphenylphosphino)ethene) with 2 leads to the immediate formation of the known heterobimetallic complex (3) as the major product, together with an unstable, uncharacterised iron-rhodium complex.Complex 3 reacts with Me3NO to give a complex proposed as FeRh(μ-CO)(μ-dppee)(CO)3Cl (4).The heterobimetallic complex (CO)4Fe(μ-dppee)Rh(CO)2Cl (2), which does not contain an Fe-Rh bond, has been identified as a short-lived intermediate in the reaction of Fe(CO)4(dppee) with 2.