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Chemical transformation of dithiolene ligands in heteroleptic and homoleptic complexes (M = Ti, Zn, Au)

Abstract : Heteroleptic and homoleptic dithiolene metal complexes such as Cp2Ti(dithiolene), [Zn(dithiolene)2]2− and [Au(dithiolene)2]−1 complexes have been synthesized from the 1-tertiobutyl-1,3-thiazoline-2-thione-4,5-dithiolate (tBu-thiazdt) dithiolene ligand. The reactivity of these complexes towards iodomethane (MeI) has been examined. Both the titanocene and the gold complexes undergo a transformation of the tBu-1,3-thiazoline-2-thione core to a 2-methylthio-1,3-thiazole one with elimination of the tBu substituent. The reaction of MeI with the Zn complex leads to a tris(thiomethyl)-thiazole derivative due to the alkylation of the sulfur atoms and the decoordination together with the transformation into the thiazole core. Electrochemical, spectral and X-ray diffraction investigations carried out on these various complexes are also presented. © 2016 Elsevier B.V.
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Submitted on : Thursday, September 15, 2016 - 5:17:22 PM
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A. Filatre-Furcate, T. Roisnel, D. Lorcy. Chemical transformation of dithiolene ligands in heteroleptic and homoleptic complexes (M = Ti, Zn, Au). Journal of Organometallic Chemistry, Elsevier, 2016, 819, pp.182--188. ⟨10.1016/j.jorganchem.2016.06.033⟩. ⟨hal-01367222⟩

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