om034395h_si_001.cif (38.42 kB)
Elusive Niobium Alkyl Cations Related to Ethylene Polymerization
datasetposted on 15.03.2004, 00:00 by Helen M. Pritchard, Michel Etienne, Laure Vendier, G. Sean McGrady
Elusive cationic methyl complexes of niobium, [TpMe2NbMe(L)(MeC⋮CMe)][BArf4] (L = OEt2, PMe2Ph, PEt3), that model the active species in alkene polymerization by group 5 metals have been prepared. The X-ray crystal structure of the diethyl ether adduct has been obtained.