Dialkyllanthanide complexes containing new tridentate monoanionic ligands with nitrogen donors

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	Dialkyllanthanide complexes containing new tridentate monoanionic ligands with nitrogen donors
	Xu X(徐信) ; Xu XY(徐小燕) ; Chen YF(陈耀峰) ; Sun J(孙杰)
刊名	Organometallics
	2008
卷号	27 期号:4 页码:758-763
ISSN号	0276-7333
其他题名	Dialkyllanthanide complexes containing new tridentate monoanionic ligands with nitrogen donors
通讯作者	陈耀峰
英文摘要	Three new tridentate NNN ligand precursors, CH(3)C(2,6-((i)Pr)(2)C(6)H(3)NH)CHC(CH(3))(NCH(2)CH(2)-D) (D = NMe(2), NEt(2), N((CH(2)CH(2))(2)CH(2))), were synthesized. Subsequent metalations with in situ generated Ln(CH(2)SiMe(3))(3)(THF)(n) (Ln = Nd, Sm, Y, Lu) provided six solvent-free dialkyllanthanide complexes. Five of the lanthanide complexes were characterized by single-crystal X-ray diffraction, which showed that the pendant arm D bonds to the lanthanide ion in the solid state. The NMR spectra of these complexes in C(6)D(6) showed that such coordination is retained in solution. These dialkyllanthanide complexes show high activities for the ring-opening polymerization of epsilon-caprolactone, in which narrow-polydispersity polymers were produced. The size of the pendant arm has a significant effect on the molecular weight of the polymer obtained. In comparison to the Y complex with a -NMe(2) group, the Y complexes with -NEt(2) and -N((CH(2)CH(2))(2)CH(2)) groups yield much higher molecular weight polymer (60 000 vs 20 000).
学科主题	金属有机化学
收录类别	SCI
原文出处	http://dx.doi.org/10.1021/om7010936
语种	英语
WOS记录号	WOS:000253268000038
公开日期	2013-02-27
内容类型	期刊论文
源URL	[http://202.127.28.38/handle/331003/21421]
专题	上海有机化学研究所_金属有机化学国家重点实验室
推荐引用方式 GB/T 7714	Xu X,Xu XY,Chen YF,et al. Dialkyllanthanide complexes containing new tridentate monoanionic ligands with nitrogen donors[J]. Organometallics,2008,27(4):758-763.
APA	徐信,徐小燕,陈耀峰,&孙杰.(2008).Dialkyllanthanide complexes containing new tridentate monoanionic ligands with nitrogen donors.Organometallics,27(4),758-763.
MLA	徐信,et al."Dialkyllanthanide complexes containing new tridentate monoanionic ligands with nitrogen donors".Organometallics 27.4(2008):758-763.