Non‐Pincer‐Type Mononuclear Scandium Alkylidene Complexes: Synthesis,Bonding, and Reactivity |
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| Authors: | Chen Wang Dr Jiliang Zhou Xuefei Zhao Prof?Dr Laurent Maron Dr Xuebing Leng Prof?Dr Yaofeng Chen |
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| Institution: | 1. State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai, P. R. China;2. LPCNO, CNRS & INSA, Université Paul Sabatier, Toulouse, France |
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| Abstract: | The first non‐pincer‐type mononuclear scandium alkylidene complexes were synthesized and structurally characterized. These complexes exhibited short Sc?C bond lengths and even one of the shortest reported to date (2.1134(18) Å). The multiple character of the Sc?C bond was highlighted by a DFT calculation. This was confirmed by experimental reactivity study where the complex underwent 2+1] cycloaddition with elemental selenium and 2+2] cycloaddition with imine. DFT calculation also revealed a strong nucleophilic behavior of the alkylidene complex that was experimentally demonstrated by the C?H bond activation of phenylacetylene. |
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| Keywords: | alkylidene cycloaddition density functional calculations multiple bonds scandium |
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