Coordination chemistry of organometallic polydentate ligands. syntheses of Fe-M complexes using Fe(CO)4(Ph2Ppy-P)[Ph2Ppy = 2-(Diphenylphosphino)Pyridine] and TRANS-Fe(PhPMepy)2(CO)3[PhPMepy = 2-(Phenylmethylphosphino) Pyridine] AS A Neutral BI- OR Tridentate Ligand

Abstract Fe(CO) 4 (Ph 2 Ppy-P) (1), prepared by the oxygen-atom transfer reaction, reacted as an organometallic bidentate ligand with HgX 2 (X = Cl, I) to form binuclear complexes containing a Fe—Hg bond and treatment of the organometallic tridentate ligand trans-Fe (PhPMepy) 2 (CO) 3 (2) with M(CO) 6 (M = Cr, Mo), M(SCN) 2 (M = Zn, Cd, Co, Ni, Mo), HgX 2 (X = Cl, I) and CdCl 2 also afforded binuclear complexes including a Fe—M bond. The crystal and molecular structures of the Fe-Hg complexes (CO) 4 Fe(μ-Ph 2 Ppy)Hg(μ-Cl) 2 HgCl 2 (3), (CO) 3 Fe(μ-PhPMepy) 2 Hg(μ-Cl) 2 HgCl 2 ·1/2CH 2 Cl 2 (5) and (CO) 3 Fe(μ-PhPMepy) 2 Hg(μ-I) 2 HgI 2 · 3CH 2 Cl 2 (6) have been determined. Copyright © 1996 Elsevier Science Ltd