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Reactivity of [Fe-2(CO)(6)(mu-CO)(mu-dppm)] towards unsaturated sulfur-containing compounds, SO2, CS2 and ArNCS: facile carbon-sulfur bond cleavage at the diiron centre

Hogarth, G; Lavender, MH; Shukri, K; (2000) Reactivity of [Fe-2(CO)(6)(mu-CO)(mu-dppm)] towards unsaturated sulfur-containing compounds, SO2, CS2 and ArNCS: facile carbon-sulfur bond cleavage at the diiron centre. J ORGANOMET CHEM , 595 (1) 134 - 139.

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Abstract

Photolysis of [Fe-2(CO)(6)(mu-CO)(mu-dppm)] (1) with SO2, CS2 and ArNCS leads to the formation of [Fe-2(CO)(6)(mu-SO2)(mu-dppm)] (2), [Fe-4(CO)(10)(mu(3)-S)(mu-CS)(mu-dppm)(2)] (3), [Fe-2(CO)(3)(CNAr){mu-SC(NAr)C(O)S}(mu-dppm)] (4-5) and [Fe-2(CO)(4){mu-SC(N-p-tolyl)C(O)S}(mu-dppm)] (6), respectively. Complex 2 is a simple CO substitution product, white in 3 carbon-sulfur cleavage and coupling of diiron units has occurred. Dithiolate-bridged 4-6 also result from carbon-sulfur bond cleavage of one isothiocyanate and coupling of the sulfur with CO and a second isothiocyanate. Two isomers of complexes 3-6 are found and in thiolate-bridged 4-6 these interconvert as a result of inversion at the imine nitrogen, which has been monitored by VT NMR. (C) 2000 Elsevier Science S.A. All rights reserved.

Type:Article
Title:Reactivity of [Fe-2(CO)(6)(mu-CO)(mu-dppm)] towards unsaturated sulfur-containing compounds, SO2, CS2 and ArNCS: facile carbon-sulfur bond cleavage at the diiron centre
Keywords:iron, sulfur dioxide, carbon disulfide, photolysis, dimeric carbonyl, RAY CRYSTAL-STRUCTURE, DI-IRON CENTER, STEPWISE SYNTHESIS, COMPLEXES, DISULFIDE, INSERTION, MONOXIDE, LIGANDS, ALKYNES, TROPONE
UCL classification:UCL > School of BEAMS > Faculty of Maths and Physical Sciences > Chemistry

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