Article Dans Une Revue Angewandte Chemie International Edition Année : 2022

Synthesis, Characterization, and Reactivity of a Hydrido- and Imido-Bridged Dinuclear Ytterbium(III) Complex

Résumé

The trivalent rare-earth metal hydrido and imido complexes are of versatile reactivity, and many such complexes have been synthesized. However, no example of a rare-earth metal complex bearing both hydrido- and imido-ligands has been reported. Herein, we report the first rare-earth metal complex bearing both hydrido- and imido-ligands, namely a hydrido- and imido-bridged dinuclear ytterbium(III) complex. The complex was synthesized via an unprecedented redox reaction of divalent rare-earth metal hydrido complex with azido compound. DFT calculation indicated that the N-2 release from azido compound in the presence of ytterbium(II) is a kinetically facile process because of the cooperative effects of the two metal centers. The reactivity of the hydrido- and imido-bridged dinuclear ytterbium(III) complex was also explored, which showed the redox, addition and sigma-bond metathesis reactivities.

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hal-03714649 , version 1 (05-07-2022)

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Qingqing Wen, Thayalan Rajeshkumar, Laurent Maron, Xuebing Leng, Yaofeng Chen. Synthesis, Characterization, and Reactivity of a Hydrido- and Imido-Bridged Dinuclear Ytterbium(III) Complex. Angewandte Chemie International Edition, 2022, 61 (25), ⟨10.1002/anie.202200540⟩. ⟨hal-03714649⟩
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