Syntheses of titanium and zirconium chlorotrialkyl complexes and crystal structure of chlorotrineopentylzirconium containing unusual linear symmetric metal-chloride polymeric chains

McAlexander LH; Li LT; Yang YH; Pollitte JL; Xue ZL

Inorganic Chemistry, Vol.37, No.6, 1423-1426, 1998

McAlexander LH, Li LT, Yang YH, Pollitte JL, Xue ZL

Chlorotrineopentylzirconium (Me3CCH2)(3)ZrCl was found to crystallize in polymeric chains with unusual linear and symmetric chloride bridges and the repeat unit -Cl-Zr(CH2CMe3)(3)-Cl-Zr(CH2CMe3)(3)-. The syntheses of new trialkyl chloride complexes (Me-3-SiCH2)(3)MCl (M = Ti, Zr) and improved methods of preparing (Me3CCH2)(3)MCl (M = Ti, Zr) and tetraalkyl complexes (Me3ECH2)(4)Ti (E = C, Si) are reported.

Keywords:ANIONIC PI-LIGANDS;CARBON BONDS;NEOPENTYLIDENE COMPLEXES;ALKYL;TANTALUM;ELIMINATION;ABSTRACTION;MOLYBDENUM;MECHANISM;TUNGSTEN