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Reactivity of phenyldi(2-thienyl) phosphine towards group 7 metal carbonyls: Carbon-phosphorus bond activation

Ghosh, S; Das, AK; Begum, N; Haworth, DT; Lindeman, SV; Gardinier, JF; ... Kabir, SE; + view all (2009) Reactivity of phenyldi(2-thienyl) phosphine towards group 7 metal carbonyls: Carbon-phosphorus bond activation. INORG CHIM ACTA , 362 (15) 5175 - 5182. 10.1016/j.ica.2009.09.021.

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Abstract

Addition of phenyldi(2-thienyl) phosphine (PPhTh2) to [Re-2(CO)(10-n)(NCMe)(n)] (n = 1, 2) affords the substitution products [Re-2(CO)(10-n)(PhPTh2)(n)] (1, 2) together with small amounts of fac-[ClRe(CO)(3)(PPhTh2)(2)] (3) (n = 2). Reaction of [Re-2(CO)(10)] with PPhTh2 in refluxing xylene affords a mixture which includes 2, [Re-2(CO)(7)(PPhTh2)(mu-PPhTh)(mu-H)] (4), [Re-2(CO)(7)(PPhTh2)(mu-PPhTh)(mu-eta(1), kappa(1)(S)-C4H3S)] (5) and mer[HRe(CO)(3)(PPhTh2)(2)] (6). Phosphido-bridged 4 and 5 are formed by the carbon-phosphorus bond cleavage of the coordinated PPhTh2 ligand, the cleaved thienyl group being retained in the latter. Reaction of [Mn-2(CO)(10)] with PPhTh2 in refluxing toluene affords [Mn-2(CO)(9)(PPhTh2)] (7) and the carbon-phosphorus bond cleavage products [Mn-2(CO)(6)(mu-PPhTh)(mu-eta(1),eta(5)-C4H3S)] (8) and [Mn-2(CO)(5)(PPhTh2)(mu-PPhTh)(mu-eta(1),eta(5)-C4H3S)] (9). Both 8 and 9 contain a bridging thienyl ligand which is bonded to one manganese atom in a eta(5)-fashion. (C) 2009 Elsevier B. V. All rights reserved.

Type:Article
Title:Reactivity of phenyldi(2-thienyl) phosphine towards group 7 metal carbonyls: Carbon-phosphorus bond activation
DOI:10.1016/j.ica.2009.09.021
Keywords:Rhenium carbonyl, Manganese carbonyl, Phenyldi(2-thienyl)phosphine, Carbon-phosphorus bond cleavage, X-ray structures, C-S BONDS, HYDRODESULFURIZATION REACTION, DEEP HYDRODESULFURIZATION, COMPLEXES, THIOPHENE, CLEAVAGE, LIGANDS, DESULFURIZATION, DIBENZOTHIOPHENE, HYDROGENATION
UCL classification:UCL > School of BEAMS > Faculty of Maths and Physical Sciences > Chemistry

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