Iron(III) complexes with meta-substituted bis(arylimino)pyridine ligands: Catalyst precursors for the selective oligomerization of ethylene

被引：19
|
作者：
Goerl, Christian [1 ]
Beck, Nadine [1 ]
Kleiber, Katharina [1 ]
Alt, Helmut G. [1 ]
机构：
[1] Univ Bayreuth, Lab Makromol Chem, D-95447 Bayreuth, Germany
来源：
JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL | 2012年 / 352卷
关键词：
Bis(arylimino)pyridine iron complexes; Ethylene oligomerization; Oligomers; Isomerization of olefins; Branched alkenes; HIGH-TEMPERATURE CATALYSTS; TRIDENTATE BIS(IMINO)PYRIDINE COMPLEXES; ALPHA-OLEFINS; COBALT COMPLEXES; 2,6-BIS(IMINO)PYRIDYL IRON; ACTIVE CATALYSTS; DOUBLE PATTERN; POLYMERIZATION; DIMERIZATION; PYRIDINE;
D O I：
10.1016/j.molcata.2011.10.011
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Bis(arylimino)pyridine iron(III) complexes containing meta-halogen substituents at the iminophenyl rings were synthesized and characterized. In contrast to iron(II) complexes, the presence of at least one ortho-substituent at the iminophenyl rings is not obligative for catalytic activities of these iron(III) complexes. After activation with methylaluminoxane (MAO), these catalysts oligomerize ethylene to give also internal and branched olefins besides the expected linear alpha-olefins. The widths of the resulting molecular weight distributions and the degrees of isomerization of the resulting oligomers strongly depend on the substitution pattern at the ligand frameworks. (C) 2011 Elsevier B.V. All rights reserved.
引用
收藏
页码：110 / 127
页数：18
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