2-(1-Isopropyl-2-benzimidazolyl)-6-(1-aryliminoethyl)pyridyl transition metal (Fe, Co, and Ni) dichlorides: Syntheses, characterizations and their catalytic behaviors toward ethylene reactivity

被引：112
作者：
Chen, Yanjun [1 ,2 ]
Hao, Peng [1 ]
Zuo, Weiwei [1 ]
Gao, Kun [1 ,2 ]
Sun, Wen-Hua [1 ,2 ]
机构：
[1] Chinese Acad Sci, Inst Chem, Key Lab Engn Plast, Beijing Natl Lab Mol Sci, Beijing 100080, Peoples R China
[2] Lanzhou Univ, Coll Chem & Chem Engn, State Key Lab Appl Organ Chem, Lanzhou 730000, Peoples R China
来源：
JOURNAL OF ORGANOMETALLIC CHEMISTRY | 2008年 / 693卷 / 10期
基金：
中国国家自然科学基金;
关键词：
transition metal complex; iron; cobalt; nickel; 2-(benzimidazolyl)-6-iminopyridine; ethylene reactivity;
D O I：
10.1016/j.jorganchem.2008.02.007
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
A series of 2-(1-isopropyl-2- benzimidazolyl)-6-(1-aryliminoethyl) pyridyl metal complexes [iron (II) (1a-6a), cobalt (II) (1b-6b) and nickel (II) (1c-6c)] were synthesized and fully characterized by elemental and spectroscopic analyses. Single-crystal X-ray diffraction analyses of five coordinated complexes 5a, 3b, 5b, 1c and 2c reveal 5a and 5b as distorted trigonal-bipyramidal geometry, and 3b, 1c and 2c as distorted square pyramidal geometry. All complexes performed ethylene reactivity with the assistance of various organoaluminums. The iron complexes displayed good activities in the presence of MAO and MMAO. Upon activated by Et2AlCl, the cobalt analogues showed moderate ethylene reactivity, while the nickel analogues exhibited relatively higher activities. (C) 2008 Elsevier B.V. All rights reserved.
引用
收藏
页码：1829 / 1840
页数：12
相关论文
共 49 条
[1]   Nickel(II) complexes chelated by 2-quinoxalinyl-6-iminopyridines: Synthesis, crystal structures and ethylene oligomerization [J].
Adewuyi, Sherrif ;
Li, Gang ;
Zhang, Shu ;
Wang, Wenqing ;
Hao, Peng ;
Sun, Wen-Hua ;
Tang, Ning ;
Yi, Jianjun .
JOURNAL OF ORGANOMETALLIC CHEMISTRY, 2007, 692 (16) :3532-3541
[2]  
Bianchini C, 2003, EUR J INORG CHEM, P1620
[3]   Iron catalyzed polyethylene chain growth on zinc:: A study of the factors delineating chain transfer versus catalyzed chain growth in zinc and related metal alkyl systems [J].
Britovsek, GJP ;
Cohen, SA ;
Gibson, VC ;
van Meurs, M .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2004, 126 (34) :10701-10712
[4]  
Britovsek GJP, 2000, CHEM-EUR J, V6, P2221, DOI 10.1002/1521-3765(20000616)6:12<2221::AID-CHEM2221>3.3.CO
[5]  
2-L
[6]   Iron and cobalt ethylene polymerization catalysts bearing 2,6-bis(imino)pyridyl ligands:: Synthesis, structures, and polymerization studies [J].
Britovsek, GJP ;
Bruce, M ;
Gibson, VC ;
Kimberley, BS ;
Maddox, PJ ;
Mastroianni, S ;
McTavish, SJ ;
Redshaw, C ;
Solan, GA ;
Strömberg, S ;
White, AJP ;
Williams, DJ .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1999, 121 (38) :8728-8740
[7]   Ethylene oligomerization by novel catalysts based on bis(salicylaldiminate)nickel(II) complexes and organoaluminum co-catalysts [J].
Carlini, C ;
Isola, M ;
Liuzzo, V ;
Galletti, AMR ;
Sbrana, G .
APPLIED CATALYSIS A-GENERAL, 2002, 231 (1-2) :307-320
[8]   Chromium(III) complexes ligated by 2-(1-isopropyl-2-benzimidazolyl)-6-(1-(arylimino)ethyl) pyridines: Synthesis, characterization and their ethylene oligomerization and polymerization [J].
Chen, Yanjun ;
Zuo, Weiwei ;
Hao, Peng ;
Zhang, Shu ;
Gao, Kun ;
Sun, Wen-Hua .
JOURNAL OF ORGANOMETALLIC CHEMISTRY, 2008, 693 (04) :750-762
[9]   Halogen-substituted 2,6-bis(imino)pyridyl iron and cobalt complexes: Highly active catalysts for polymerization and oligomerization of ethylene [J].
Chen, YF ;
Chen, RF ;
Qian, CT ;
Dong, XC ;
Sun, J .
ORGANOMETALLICS, 2003, 22 (21) :4312-4321
[10]   Fluoro-substituted 2,6-bis(imino)pyridyl iron and cobalt complexes: High-activity ethylene oligomerization catalysts [J].
Chen, YF ;
Qian, CT ;
Sun, J .
ORGANOMETALLICS, 2003, 22 (06) :1231-1236
12345