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Non‐Pincer‐Type Mononuclear Scandium Alkylidene Complexes: Synthesis, Bonding, and Reactivity
Author(s) -
Wang Chen,
Zhou Jiliang,
Zhao Xuefei,
Maron Laurent,
Leng Xuebing,
Chen Yaofeng
Publication year - 2016
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201504725
Subject(s) - scandium , phenylacetylene , pincer movement , cycloaddition , reactivity (psychology) , chemistry , imine , nucleophile , bond length , medicinal chemistry , crystallography , polymer chemistry , organic chemistry , catalysis , crystal structure , medicine , alternative medicine , pathology
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.