Substituted metal carbonyls. Part 25: Unidentate, intramolecular, and intermolecular bridging modes of 1,1′-bis(diphenylphosphino)ferrocene in M3S2(CO)9 (M = Fe, Ru) cluster derivatives

Abstract

Carbonyl exchange of Fe3(μ3-S)2(CO)9 wioth 1,1′-bis(diphenylphosphino)ferrocene (dppf) in refluxing THF gives a cluster ligand with a pendant phosphine moiety, Fe3(μ3-S)2(CO)8 (gn1-Ph2PlC5H4)Fe(C5H4)P4 MePh2)]1-, 4. Addition of 1 to AuCl(SMe2) gives ClAu(μ-dppf) Fe4(μ3-S)2(CO)8, 8 (45%). Spectroscopic evidence is also obtained for (OC)8 (μ3-S)2Fe3(μ-dppf) Os3(CO)11, 7 and PdCl2[(μ-dppf)Fe3(μ3-D)2(CO)8]2, 9, from 1 and Os3(CO)11(CH3CN) and PdCl2CN)2, respectively. Crystal data dor 3: space group P21/n, a = 10.891(3) Å, b = 19.939(3) Å, c = 20.443(2) Å, β 100.17(2)°. Z = 4, 3917 reflections, R = 0.049. © 1994 Plenum Publishing Corporation.