Synthesis and Reactivity of a Scandium Terminal Hydride: H-2 Activation by a Scandium Terminal Imido Complex - INSA Toulouse - Institut National des Sciences Appliquées de Toulouse Access content directly
Journal Articles Chemistry - A European Journal Year : 2017

Synthesis and Reactivity of a Scandium Terminal Hydride: H-2 Activation by a Scandium Terminal Imido Complex

Abstract

Dihydrogen is easily activated by a scandium terminal imido complex containing the weakly coordinated THF. The reaction proceeds through a 1,2-addition mechanism, which is distinct from the sigma-bond metathesis mechanism reported to date for rare-earth metal-mediated H-2 activation. This reaction yields a scandium terminal hydride, which is structurally well-characterized, being the first one to date. The reactivity of this hydride is reported with unsaturated substrates, further shedding light on the existence of the terminal hydride complex. Interestingly, the H-2 activation can be reversible. DFT investigations further eludciate the mechanistic aspects of the reactivity of the scandium anilido-terminal hydride complex with PhNCS but also on the reversible H-2 activation process.
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Dates and versions

hal-01961159 , version 1 (19-12-2018)

Identifiers

  • HAL Id : hal-01961159 , version 1

Cite

Xianghao Han, Li Xiang, Carlos A. Lamsfus, Weiqing Mao, Erli Lu, et al.. Synthesis and Reactivity of a Scandium Terminal Hydride: H-2 Activation by a Scandium Terminal Imido Complex. Chemistry - A European Journal, 2017, 23 (59), pp.14728--14732. ⟨hal-01961159⟩
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