摘要
Diphenyldichalcogenides (PhE) 2 (E = Te, Se) react with Fe(0)‐phenylchalcogenolate [PPN] [PhEFe(CO) 4 ] to yield the products of oxidative addition, Fe(II)‐mixed‐phenylchalcogenolate fac‐ [PPN][Fe(CO) 3 (TePh) n (ScPh) 3‐n ] (n = 1, 2). Reactions of [PPN][REFe(CO) 4 ] (E=Se, R=Me; E=S, R=Et) and diphenyldichalcogenides yielded ligand‐exchange products [PPN][PhEFe(CO) 4 ] (E=Te, Se, S). The compounds [Fe(CO) 3 (TePh)(ScPh) 2 ] − (l) and [Fe(CO) 3 (TePh) 2 (2) crystallize in the isomorphous monoclinic space group C 2/e , with a = 32.035(8), b = 11.708(6), c = 28.909(6) Å, Z = 8, R = 0.048, and R w = 0.044 (1); with a = 32.089(5), b= 11.745(2), c = 28.990(8) Å, Z = 8, R = 0.048, and R w = 0.048 (2). The complexes 1 and 2 crystallize as discrete cations of PPN + and anions of [Fe(CO) 3 (TcPh) u (ScPh) 3‐n ] (n=1, 2), and one half solvent molecule THF. The geometry around Fe(II) is a distorted octahedron with three carbonyl groups and three phenylchalcogenolate ligands occupying facial positions. Copyright © 1993 The Chemical Society Located in Taipei & Wiley‐VCH Verlag GmbH & Co. KGaA, Weinheim, Germany