Abstract
Olefin insertion and chain transfer to monomer on [Oh-CH3MCl4]m(M = Ti, Zr, m = –1, –2: models of Ziegler-Natta catalysts) and [Td-CH3ML2]m(M = Ti, Zr; L = Cl, Cp m = 0, +1: models of metallocene catalysts) were analyzed by paired interacting orbitals (PIO) proposed by Fujimoto et al. Polymerization activities, molecular weights and regioselectivities of propylene insertion were easily predicted by using the total overlap population of all PIOs as an index of catalytic reactions.
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