Scandium complexes with [N,N,Cp] and [N,N,O] donor-set ancillary ligands as catalysts in olefin polymerization

作者：Paolucci Gino^*; Bortoluzzi Marco; Napoli Mariagrazia; Longo Pasquale

来源：Journal of Molecular Catalysis A: Chemical , 2008, 287(1-2): 121-127.

DOI：10.1016/j.molcata.2008.03.009

• scandium
• olefin polymerization
• constrained geometry catalysts
• non-cyclopentadienyl catalysts

New Sc(III) chloro-complexes [ScCl2(NNCp)(THF)] (1), [ScCl2(NNO)(THF)] (2) and [ScCl2(NNHO)(THF)] (3) {NNCp = 6-cyclopentadienylmethyl-pyridin-2-ylmethylene)-(2,6-diisopropyl-phenyl)-amine; NNO=2-tert-butyl-6-((quinolin-8-ylimino)methyl)phenolate); NNHO = 2-tert-butyl-6-((quinolin-8-ylamino)methyl)phenolate) have been synthesized and characterized by NMR and mass spectrometry. The comparative results of the catalytic behavior of these scandium complexes towards ethylene and butadiene polymerization are reported and explained on the basis of the electronic and steric properties of the ancillary ligands.

• 出版日期2008-5-15