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Type: Artigo de periódico
Title: Synthesis and catalytic activity in ethylene polymerization of cyclopentadienylterbium dibromides with pyrazole or triphenylphosphine ligand
Author: Maia, AD
Paulino, IS
Schuchardt, U
de Oliveira, W
Abstract: Organoterbium compounds TbBr(2)CpHPz and TbBr2CpPPh3 were obtained by reaction of pyrazole or triphenylphosphine ligands with cyclopentadienylterbium dibromide. These compounds were characterized by elemental analysis, complexometric titration with EDTA, thermal analysis, vibrational spectra in the infrared region and H-1 NMR. In a preliminary catalytic study, these compounds were active in ethylene polymerization when MAO was used as cocatalyst, producing low crystalline polyethylene. (C) 2002 Elsevier Science B.V. All rights reserved.
Subject: organolanthanides
Country: Holanda
Editor: Elsevier Science Bv
Citation: Inorganic Chemistry Communications. Elsevier Science Bv, v. 6, n. 3, n. 304, n. 307, 2003.
Rights: fechado
Date Issue: 2003
Appears in Collections:Unicamp - Artigos e Outros Documentos

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