om049447x_si_003.cif (48.12 kB)
Download fileOlefin Polymerization Catalyzed by Titanium−Tungsten Heterobimetallic Dinitrogen Complexes1
dataset
posted on 27.09.2004, 00:00 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.