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Incorporation of alkyne and vinylidene ligands into tetrazolate groups at a sulfur-rich dimolybdenum site using sodium azide

Abstract : Treatment of either the μ-alkyne complex [Mo2Cp 2(μ-SMe)3(μ-PhCCH)](BF4) (1) or the μ-vinylidene derivatives [Mo2Cp2(μ-SMe) 3(μ-η1:η2-(CCHR)](BF4) (2) (R=Ph, Tol, nPr, C(CH3)=CH2) with NaN3 in ethanol at room temperature readily afforded μ-tetrazolate carbene complexes [Mo2Cp2(μ-SMe)3)μ-η 1(C):η1(N)-N4CCR)] (R=Ph (4a), Tol (4b), nPr (4c), C(CH3)=CH2 (4d)). A mechanism which accounts for the formation of 4 by intramolecular 1,3-dipolar cycloaddition of metal-coordinated azide ligands to metal-coordinated nitriles is discussed. The structure of complex 4a has been determined by single X-ray diffraction analysis. © 2003 Elsevier Science B.V. All rights reserved.
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https://hal.univ-brest.fr/hal-01763906
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Submitted on : Wednesday, April 11, 2018 - 2:59:33 PM
Last modification on : Monday, October 11, 2021 - 2:22:08 PM

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Philippe Schollhammer, Nolwenn Cabon, A.-C. Kervella, François Pétillon, R. Rumin, et al.. Incorporation of alkyne and vinylidene ligands into tetrazolate groups at a sulfur-rich dimolybdenum site using sodium azide. Inorganica Chimica Acta, Elsevier, 2003, 350, pp.495-502. ⟨10.1016/S0020-1693(02)01556-6⟩. ⟨hal-01763906⟩

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