Rare-earth metal bis( minobenzyl) complexes supported by pyrrolyl-functionalized arylamide ligands: synthesis, characterization and styrene polymerization performance

doi:10.1039/c8dt01834k

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	Rare-earth metal bis( minobenzyl) complexes supported by pyrrolyl-functionalized arylamide ligands: synthesis, characterization and styrene polymerization performance
	Li, Min 1; Wang, Chaopan 1; Xie, Hongzhen 1; Mou, Zehuai 1; Luo, Yunjie 1,2
刊名	DALTON TRANSACTIONS
	2018-08-07
卷号	47 期号:29 页码:9709-9716
ISSN号	1477-9226
DOI	10.1039/c8dt01834k
英文摘要	An acid-base reaction between the rare-earth tris(o-dimethylaminobenzyl) complexes Ln(CH2C6H4NMe2-o)(3) and the pyrrolyl-functionalized arylamide ligands 2,5-Me2C4H2NCH2SiMe2 NHC6H4R (R = H, (HL1); R = Cl-p, (HL2)) was investigated. Treatment of HL1 and HL2 with 1 equiv. of Ln(CH2C6H4NMe2-o)(3) in toluene at room temperature gave (2,5-Me2C4H2CH2NSiMe2NC6H5) Ln(CH2C6H4NMe2-o)(2) (Ln = Sc (1), La (2), Lu (3)) and (2,5-Me2C4H2NCH2SiMe2NC6H4Cl-p) Ln(CH2 C6H4NMe2-o)(2) (Ln = Sc (4), La (5), Lu (6)) in good isolated yields. These complexes were characterized by elemental analysis and NMR spectroscopy. 2, 4 and 5 were structurally authenticated by single crystal X-ray diffraction. NMR and X-ray diffraction show that there are no interactions between the central metal and the pyrrolyl moiety in small sized metal complexes, while in large lanthanum complexes, besides the coordination of the arylamide moiety to La3+ in eta(1)-bonding mode through a N atom, the pyrrolyl ring also has close contact with La3+ in 2 and 5. The binary systems of 1-6/[Ph3C][B(C6F5)(4)] were employed as catalysts for syndio-specific polymerization of styrene, and the pyrrolyl-ligated lanthanum complexes showed much higher activity than the complexes in which the pyrrolyl moiety had no coordination with the central metal.
语种	英语
出版者	ROYAL SOC CHEMISTRY
WOS记录号	WOS:000444190500017
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/43075]
专题	中国科学院化学研究所
通讯作者	Luo, Yunjie
作者单位	1.Ningbo Univ, Sch Mat Sci & Chem Engn, Ningbo 315211, Zhejiang, Peoples R China 2.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Jilin, Peoples R China
推荐引用方式 GB/T 7714	Li, Min,Wang, Chaopan,Xie, Hongzhen,et al. Rare-earth metal bis( minobenzyl) complexes supported by pyrrolyl-functionalized arylamide ligands: synthesis, characterization and styrene polymerization performance[J]. DALTON TRANSACTIONS,2018,47(29):9709-9716.
APA	Li, Min,Wang, Chaopan,Xie, Hongzhen,Mou, Zehuai,&Luo, Yunjie.(2018).Rare-earth metal bis( minobenzyl) complexes supported by pyrrolyl-functionalized arylamide ligands: synthesis, characterization and styrene polymerization performance.DALTON TRANSACTIONS,47(29),9709-9716.
MLA	Li, Min,et al."Rare-earth metal bis( minobenzyl) complexes supported by pyrrolyl-functionalized arylamide ligands: synthesis, characterization and styrene polymerization performance".DALTON TRANSACTIONS 47.29(2018):9709-9716.