A Novel Al-Bridged Trinuclear Iron(II) Bis(imino)pyridyl Complex with Catalytic Ethylene Polymerization Behavior

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	A Novel Al-Bridged Trinuclear Iron(II) Bis(imino)pyridyl Complex with Catalytic Ethylene Polymerization Behavior
	Long ZR(龙泽荣) ; Li ZQ(李忠全) ; Ma N(马宁) ; Wu B(吴彪)
刊名	Bull. Korean Chem. Soc.
	2011
卷号	32 期号:8 页码:2537-2543
关键词	Self-assembly Trinuclear iron(II) bis(imino)pyridyl complex Ethylene polymerization Structure modeling
ISSN号	0253-2964
通讯作者	龙泽荣
中文摘要	A self-assembled Al-bridged diiminopyridine-based ligand (3) was synthesized and characterized by FT-IR, ESI-MS and NMR spectroscopy. Electron spectral titrations were performed to confirm the formation of a novel trinuclear bis(imino)pyridyl iron(II) complex (4) upon addition of FeCl2 into Al-bridged ligand 3 in methanol solution. Simultaneously, a typical bis(imino)pyridine-iron(II) complex (2) was synthesized and fully characterized. The X-ray crystal study of the iron(II) complex 2 disclosed a five-coordinate, distorted squarepyramidal structure with the tridentate N^N^N ligand and chlorides. The optimal molecular structure of 4 was obtained by means of molecular mechanics, which showed that each iron atom in the complex 4 is surrounded by two chlorides, a tridentate N^N^N ligand and one oxygen atom, supporting considerations about the possibility of six-coordinate geometry from MMAO or the ethylene access. A comparison of 4 with the reference 2 revealed a remarkable decrease of the catalytic activity and MMAO consumption (activity up to 0.41 × 103 kg molFe −1 h−1 bar−1, Al/Fe = 650 for 4 and 7.02 × 103 kg molFe −1 h−1 bar−1, Al/Fe = 1600 for 2).
学科主题	物理化学
收录类别	SCI
资助信息	the “Bairen Jihua” project of the Chinese Academy of Sciences
语种	英语
WOS记录号	WOS:000297383900005
公开日期	2012-09-20
内容类型	期刊论文
源URL	[http://210.77.64.217/handle/362003/359]
专题	兰州化学物理研究所_OSSO国家重点实验室
推荐引用方式 GB/T 7714	Long ZR,Li ZQ,Ma N,et al. A Novel Al-Bridged Trinuclear Iron(II) Bis(imino)pyridyl Complex with Catalytic Ethylene Polymerization Behavior[J]. Bull. Korean Chem. Soc.,2011,32(8):2537-2543.
APA	龙泽荣,李忠全,马宁,&吴彪.(2011).A Novel Al-Bridged Trinuclear Iron(II) Bis(imino)pyridyl Complex with Catalytic Ethylene Polymerization Behavior.Bull. Korean Chem. Soc.,32(8),2537-2543.
MLA	龙泽荣,et al."A Novel Al-Bridged Trinuclear Iron(II) Bis(imino)pyridyl Complex with Catalytic Ethylene Polymerization Behavior".Bull. Korean Chem. Soc. 32.8(2011):2537-2543.