Replacement of SMe2 by phosphines PR3 (PR3 = PPh3, PMePh2, PMe2Ph, PMe3, P(CH2Ph)3, PPh2CH2PPh2, P(NEt2)3) in the sulfonium [Fe2Cp2(CO)2(mu-CO){mu-C(CN)SMe2}]SO3CF3 (1) results in the formation of the novel phosphonium salts [Fe2Cp2(CO)2(mu-CO){mu-C(CN)PR3}]SO3CF3. The corresponding reaction of 1 with PH3 affords a mixture of [Fe2Cp2(CO)2(mu-CO){mu-C(CN)PH3}]SO3CF3 (3) and the mu-phosphinoalkylidene [Fe2Cp2(CO)2(mu-CO){mu-C(CN)PH2}] (4). Conversion of 3 to 4 is achieved by deprotonating with NEt3 and completely reversed upon treatment with HSO3CF3. The phosphonium and mu-phosphinoalkylidene complexes have been characterized on the basis of their IR, P-31, H-1 and C-13 NMR spectra.

DINUCLEAR COMPLEXES WITH BRIDGING FUNCTIONALIZED ALKYLIDENE LIGANDS - SYNTHESIS OF THE PHOSPHONIUM [FE2CP2(CO)2(MU-CO)(MU-C(CN)PR3)]SO3CF3 AND OF THE PHOSPHINOALKYLIDENE [FE2CP2(CO)2(MU-CO)(MU-C(CN)PH2) / M. BASSI, L. CARLUCCI, V. ZANOTTI. - In: INORGANICA CHIMICA ACTA. - ISSN 0020-1693. - 204:2(1993), pp. 171-174.

DINUCLEAR COMPLEXES WITH BRIDGING FUNCTIONALIZED ALKYLIDENE LIGANDS - SYNTHESIS OF THE PHOSPHONIUM [FE2CP2(CO)2(MU-CO)(MU-C(CN)PR3)]SO3CF3 AND OF THE PHOSPHINOALKYLIDENE [FE2CP2(CO)2(MU-CO)(MU-C(CN)PH2)

L. CARLUCCI;
1993

Abstract

Replacement of SMe2 by phosphines PR3 (PR3 = PPh3, PMePh2, PMe2Ph, PMe3, P(CH2Ph)3, PPh2CH2PPh2, P(NEt2)3) in the sulfonium [Fe2Cp2(CO)2(mu-CO){mu-C(CN)SMe2}]SO3CF3 (1) results in the formation of the novel phosphonium salts [Fe2Cp2(CO)2(mu-CO){mu-C(CN)PR3}]SO3CF3. The corresponding reaction of 1 with PH3 affords a mixture of [Fe2Cp2(CO)2(mu-CO){mu-C(CN)PH3}]SO3CF3 (3) and the mu-phosphinoalkylidene [Fe2Cp2(CO)2(mu-CO){mu-C(CN)PH2}] (4). Conversion of 3 to 4 is achieved by deprotonating with NEt3 and completely reversed upon treatment with HSO3CF3. The phosphonium and mu-phosphinoalkylidene complexes have been characterized on the basis of their IR, P-31, H-1 and C-13 NMR spectra.
Settore CHIM/03 - Chimica Generale e Inorganica
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/2434/184080
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