Perfluormethyl-Element-Liganden. IX.. Synthese und Eigenschaften von (CF3)2EMn(CO)5 (E = P,As) |
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| Authors: | J Grobe R Rau |
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| Abstract: | Preparation and Properties of (CF3)2EMn(CO)5 (E ? P, As) The complexes (CF3)2EMn(CO)5 (E ? P, As) are formed by the reaction of E2(CF3)4 with HMn(CO)5. They can be converted quantitatively to the binuclear compounds Mn(CO)4E(CF3)2]2 in a thermal (E ? P) or photochemical (E ? P, As) process. u. v. irradiation of a 1:1 mixture gives the mixed derivative Mn2(CO)8As(CF3)2P(CF3)2 together with the symmetrical systems. The Mn? E bond is less reactive with HBr and Me3SnBr than the M? E bond in derivatives of the type Me3ME(CF3)2 (M ? Si, Ge, Sn; Me ? CH3). The terminal (CF3)2E groups are found to be strong π-acceptor ligands. |
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