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题名: Heterobimetallic Samarium(III) and Titanium(IV) Complexes withBifunctional Catalytic Properties
作者: Zhou, Fengying ;  Lin, Miaoshui ;  Li, Lei ;  Zhang, Xueqing ;  Li, Yahong ;  Zhao, Yang ;  Wu, Jin
刊名: ORGANOMETALLICS
出版日期: 2011
卷号: 30, 期号:6, 页码:1283-1286
英文摘要: Reaction of the bis-ligand-chelated samarium complex [Sin (Hbptd)(H(2)bptd)1 (1; H(3)bptd = (2-pyrroly1)-2,5,8-triazanon a-1,8-diene), in which a pyrrolyl ring is dangling and metal-free, with Ti(NMe2)(4) yielded the heterometallic complex [Sm(Hbptd)(THF) (bptd)Ti(NMe2)(2)] (2). Treatment of the H3bptd ligand with 1 equiv of Ti(NMe2)(4) gave the titanium amido complex [Ti(bptd)(NMe2)] (3). Complexes 2 and 2; were able to catalyze the hydroamination of phenylacetylene with 2,4-dichloroaniline and 4-methoxyaniline, and high regioselectivities were observed for the two amines. Both 1 and 2 were active catalysts for the ring-opening polymerization of epsilon-caprolactone. 2 showed higher activity for the polymerization reactions, due to a decrease in the coordination number of the samarium atom (from 9 in 1 to 8 in 2) by sharing its ligand with the titanium center. Reaction of the bis-ligand-chelated samarium complex [Sin (Hbptd)(H(2)bptd)1 (1; H(3)bptd = (2-pyrroly1)-2,5,8-triazanon a-1,8-diene), in which a pyrrolyl ring is dangling and metal-free, with Ti(NMe2)(4) yielded the heterometallic complex [Sm(Hbptd)(THF) (bptd)Ti(NMe2)(2)] (2). Treatment of the H3bptd ligand with 1 equiv of Ti(NMe2)(4) gave the titanium amido complex [Ti(bptd)(NMe2)] (3). Complexes 2 and 2; were able to catalyze the hydroamination of phenylacetylene with 2,4-dichloroaniline and 4-methoxyaniline, and high regioselectivities were observed for the two amines. Both 1 and 2 were active catalysts for the ring-opening polymerization of epsilon-caprolactone. 2 showed higher activity for the polymerization reactions, due to a decrease in the coordination number of the samarium atom (from 9 in 1 to 8 in 2) by sharing its ligand with the titanium center.
收录类别: SCI
语种: 英语
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内容类型: 期刊论文
URI标识: http://ir.isl.ac.cn/handle/363002/1881
Appears in Collections:青海盐湖研究所知识仓储(2014年之前)_期刊论文

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Recommended Citation:
Zhou, Fengying,Lin, Miaoshui,Li, Lei,et al. Heterobimetallic Samarium(III) and Titanium(IV) Complexes withBifunctional Catalytic Properties[J]. ORGANOMETALLICS,2011,30(6):1283-1286.
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