4.8 Article

Group-4 Transition-Metal Boryl Complexes: Syntheses, Structures, Boron-Metal Bonding Properties, and Application as a Polymerization Catalyst

Journal

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
Volume 131, Issue 40, Pages 14162-+

Publisher

AMER CHEMICAL SOC
DOI: 10.1021/ja905950g

Keywords

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Funding

  1. MEXT, Japan [21245023, 21685006, 19027015]
  2. Grants-in-Aid for Scientific Research [21245023, 21685006, 19027015] Funding Source: KAKEN

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Two group-4 boryl complexes, boryltitanium 2 and borylhafnium 3, were synthesized via nucleophilic borylation using boryllithium 1. Complexes 2 and 3 are the first examples of group-4 borylmetals. Theoretical calculations on model molecules 5 and 6 indicated that the boron-metal bond in both complexes has a covalent character. Complex 3 has activity for polymerization of ethylene or hex-1-ene.

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