Phenyltellurolate-bridged heterometallic complexes combining rhenium tricarbonyl with (dicarbonyl)(cyclopentadienyl)iron or bis(diphenylphosphino)ethaneplatinum

Abstract

A reaction of CpFe(CO)2TePh with Re(CO)3(THF)2Cl in THF gave the heterometallic complex [CpFe(CO)2(μ-TePh)]2Re(CO)3Cl (I). Either iron atom in complex I is linked to rhenium by only one Phenyltellurolate bridge. When treated with (Dppe)Pt(TePh)2, complex I underwent transmetalation by elimination of two CpFe(CO)2TePh molecules followed by the formation of the heterometallic chelate complex (Dppe)Pt(μ-TePh)2Re(CO)3Cl (II). Complex II was also obtained in an independent way from (Dppe)Pt(TePh)2 and Re(CO)3(THF)2. Structures I and II (II · MePh and II · CDCl3) were identified by X-ray diffraction (CIF file, CCDC nos. 981467, 981468, and 981469, respectively).