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Zweikernkomplexe des Typs Mn2(CO)8E(CF3)2E′R (E = P,As; E′ = S,Se, Te): Darstellung und Struktur
Authors:J Grobe  J Vetter  B Krebs  M Pascaly
Abstract:Perfluoromethyl Element Ligands. XLII Binuclear Complexes of the Type Mn2(CO)8E(CF3)2E′R (E = P, As; E′ = S, Se, Te): Synthesis and Structure Complexes of the type Mn2(CO)8E(CF3)2E′R, in which the groups E(CF3)2 and E′R act as bridging ligands, are prepared either by direct reactions of Mn2(CO)10 with (F3C)2EE′R (E = P, As; E′ = S, Se, Te) or by substitution of the iodine bridge in the representatives Mn2(CO)8 E(CF3)2I (E = P, As) with mercury compounds Hg(E′R)2. As a rule the binuclear systems contain four‐membered heterocycles (Mn2EE′). However, the reactions of Mn2(CO)10 with (F3C)2PE′P(CF3)2 (E′ = S, Se) yield five‐membered rings Mn2P(E′P)]. The compounds have been characterized by spectroscopic (NMR, IR, MS), analytic (C, H) and X‐ray diffraction investigations. The pyramidal Mn2E′R fragment shows dynamic behaviour in solution via inversion between two identical structures.
Keywords:Manganese carbonyl complexes  Perfluoromethyl element ligands  NMR spectroscopy  IR spectroscopy  Crystal structure
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