Rare-earth metal alkyl complexes bearing an alkoxy N-heterocyclic carbene ligand: synthesis, characterization, catalysis for isoprene polymerization

	Rare-earth metal alkyl complexes bearing an alkoxy N-heterocyclic carbene ligand: synthesis, characterization, catalysis for isoprene polymerization
	Long,Shiyu; Wang,Baoli; Xie,Hongyan; Yao,Changguang; Wu,Chunli; Cui,Dongmei
刊名	new journal of chemistry
	2015
卷号	39 期号:10 页码:7682-7687
关键词	3 ACTIVATION NHC COPOLYMERIZATION INSERTION YTTRIUM 4-SELECTIVE LIVING POLYMERIZATION
通讯作者	cui,dm
英文摘要	treatment of imidazolium iodide [r-nhc-ch2ch(bu-n)oh] i (1a (r = methyl), 1b (r = isopropyl)) and benzimidazole iodide [r-nhc(c6h4)-ch2ch(bu-n)oh] i (2a (r = methyl), 2b (r = isopropyl)), respectively, with ((trimethylsilyl)methyl)lithium (lich2sime3) followed by rare-earth metal tris(alkyl)s (ln(ch2sime3)(3)(thf)(2)) (ln = sc, y, lu) afforded the alkoxy-modified n-heterocyclic carbene ligated rare-earth metal bis(alkyl) complexes {[r-nhc-ch2ch(bu-n)oln(ch2sime3)(2)](2) (3a (r = methyl, ln = sc), 3b (r = methyl, ln = lu), 4a (r = isopropyl, ln = y), 4b (r = isopropyl, ln = lu)) and [(ch3)(2)ch-nhc(c6h4)-ch2ch(bu-n)oy(ch2sime3)(2)](2) (5)} via double-deprotonation reactions. all complexes were characterized by nmr spectroscopy, elemental analysis and x-ray crystallography. they are dimers in which two rare-earth metal ions are bridged by two mu(2)-o atoms. under the activation of an organoborate, complex 3a showed cis-1,4 enriched regioselectivity for isoprene polymerization (84.3%).
收录类别	SCI
语种	英语
公开日期	2016-05-31
内容类型	期刊论文
源URL	[http://ir.ciac.jl.cn/handle/322003/67937]
专题	长春应用化学研究所_长春应用化学研究所知识产出_期刊论文
推荐引用方式 GB/T 7714	Long,Shiyu,Wang,Baoli,Xie,Hongyan,et al. Rare-earth metal alkyl complexes bearing an alkoxy N-heterocyclic carbene ligand: synthesis, characterization, catalysis for isoprene polymerization[J]. new journal of chemistry,2015,39(10):7682-7687.
APA	Long,Shiyu,Wang,Baoli,Xie,Hongyan,Yao,Changguang,Wu,Chunli,&Cui,Dongmei.(2015).Rare-earth metal alkyl complexes bearing an alkoxy N-heterocyclic carbene ligand: synthesis, characterization, catalysis for isoprene polymerization.new journal of chemistry,39(10),7682-7687.
MLA	Long,Shiyu,et al."Rare-earth metal alkyl complexes bearing an alkoxy N-heterocyclic carbene ligand: synthesis, characterization, catalysis for isoprene polymerization".new journal of chemistry 39.10(2015):7682-7687.