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Synthesis, characterization, and ethylene polymerization behaviors of late-transition metal complexes coordinated with chlorinated bis(arylimino)pyridine ligand 期刊论文  OAI收割
polymer, 2014, 卷号: 55, 期号: 18, 页码: 4611-4618
Liu, Heng; Wang, Feng; Liu, Li; Jai,Xiang-Yu; Zheng,Wenjie; Guo,Jun; Zhang,Chun-Yu; Bai,Chen-Xi; Hu,Yan-Ming; Zhang,Xue-Quan
收藏  |  浏览/下载:30/0  |  提交时间:2015/10/20
A series of late-transition metal complexes supported with chlorinated bis(arylimino)pyridine ligands [2  Ar = 2  Ar = 2  Ar = 2  Ar = 4-Cl-2  Ar = 4-Br-2  6-(ArN=CCl)(2)C5H3N]MtCl(2) (Ar = 2  6-(Pr2C6H3)-Pr-i  6-Et2C6H3  6-Me2C6H3  6-Me2C6H2  6-Me2C6H2  4  Mt = Fe (1b)  Mt = Co (1c)  Mt = Fe (1d)  Mt = Fe (1e)  Mt = Fe (1f)  6-Me3C6H2  Co (2b)  Ni (3c)  Co (2d)  Co (2e)  Co (2f)) were synthesized. At the presence of methylaluminoxane (MAO)  Mt = Fe (1a)  Fe(II)- and Co(II)- based complexes were highly active towards ethylene polymerization  Co (2a)  affording polymers with bimodal and unimodal molar. mass distributions  Ni (3a)  respectively  while the Ni(II)-based complexes gave no polymer products. Moreover  the obtained polyethylenes were predominately saturated and vinyl-terminated for Fe(II)- and Co(II)-based complexes  respectively. Changing the ligand environment  polymerization parameters also posed a great influence on the catalytic activities and the properties of the resulting polymers. (C) 2014 Elsevier Ltd. All rights reserved.  
Antagonist binding and induced conformational dynamics of GPCR A(2A) adenosine receptor 期刊论文  OAI收割
proteins-structure function and bioinformatics, 2013, 卷号: 81, 期号: 8, 页码: 1399-1410
作者:  
Pang, Xueqin;  Yang, Mingjun;  Han, Keli
收藏  |  浏览/下载:31/0  |  提交时间:2015/11/09