om049447x_si_003.cif (48.12 kB)
Download fileOlefin Polymerization Catalyzed by Titanium−Tungsten Heterobimetallic Dinitrogen Complexes1
dataset
posted on 2004-09-27, 00:00 authored by Hiroshige Ishino, Shin Takemoto, Kenji Hirata, Yuka Kanaizuka, Masanobu Hidai, Masaaki Nabika, Yoshinori Seki, Tatsuya Miyatake, Noriyuki SuzukiA new family of highly active olefin polymerization catalysts based on titanium−tungsten heterobimetallic dinitrogen complexes, [Cp‘TiCl2(μ-N2)WCl(L)4]
(1; L = PMe2Ph, 1/2 R2PCH2CH2PR2; R = Et, Ph), has
been developed, in which the tungsten dinitrogen fragment acts as a novel metallonitrogen ligand to the
catalytically active titanium center. Alkylation of 1d (Cp‘
= C5Me5, L = 1/2 Et2PCH2CH2PEt2) with MeLi gave
di- and trimethyl derivatives 2d and 3d, which were
structurally characterized.