Cationic Group 4 Metal Alkyl Compounds Containing o-Arylphenoxide Ligation

Treatment of the dibenzyl compounds [(ArO)2M(CH2Ph)2] (ArO = 2,6-diphenyl-3,5-dimethylphenoxide, M = Ti, Zr; ArO = 2,6-diphenylphenoxide, M = Ti) with [B(C6F5)3] gave the corresponding zwitterionic species [(ArO)2M+(CH2Ph)(η6-C6H5CH2B-(C6F5)3)]. Addition of [B(C6F5)3] to the titanium dimethyl compounds [(ArO)2TiMe2] gave unstable species which polymerize ethene and propene.