| 19775080 |
Terabayashi T, Kajiwara T, Yamashita M, Nozaki K: Group-4 transition-metal boryl complexes: syntheses, structures, boron-metal bonding properties, and application as a polymerization catalyst. J Am Chem Soc. 2009 Oct 14;131(40):14162-3.
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. |
81(1,1,1,1) |