Synthesis, characterization, and styrene polymerization performance of organo yttrium complexes supported by imino-fuctionalized indenyl ligand

被引：0

作者：

Luo, Yun-Jie ^{[1
]}

Deng, Meng ^{[2
]}

Chen, Jue ^{[2
]}

机构：

[1] Ningbo Univ, Sch Mat Sci & Chem Engn, Ningbo, Zhejiang, Peoples R China

[2] Zhejiang Univ, Ningbo Inst Technol, Organometall Chem Lab, Ningbo 315100, Zhejiang, Peoples R China

来源：

INORGANIC AND NANO-METAL CHEMISTRY | 2017年 / 47卷 / 08期

基金：

中国国家自然科学基金;

关键词：

Yttrium amide complex; indenyl ligand; styrene; syndiospecific polymerization; METAL BIS(SILYLAMIDE) COMPLEXES; SYNDIOSPECIFIC POLYMERIZATION; STRUCTURAL-CHARACTERIZATION; ORGANOMETALLIC CHEMISTRY; BIS(AMIDE) COMPLEXES; CATALYST PRECURSORS; LANTHANIDE AMIDE; RAC-LACTIDE; REACTIVITY; CYCLOPENTADIENYL;

D O I：

10.1080/24701556.2017.1284113

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Amine elimination of Y[N(SiHMe2)(2)](3)(THF)(2) with the imino-functionalized indenyl ligand C9H7CH2CH = N-2,6-'Pr2C6H3 in 1:1 and 1:2 molar ratio afforded the mono-indenyl-ligated yttrium bis(silylamide) complex (C9H6CH2CH = N-2,6-'Pr2C6H3)Y[N(SiHMe2)(2)](2) (4) and the neutral yttrium complex (C9H6CH2CH = N-2,6-'Pr2C6H3)(C9H6CH = CH-N-2,6-'Pr2C6H3)Y (5), respectively. Both complexes were characterized by elemental analysis and NMR. X-ray single crystal structural diffraction showed that the central metal in 5 is four-coordinated by two indenyl ligands and two nitrogen atoms in eta(5)/kappa(1)-mode, if the indenyl ring is regarded as occupying an independent vertex. In the presence of (AlBu3)-Bu-i and activated by one equimolar amount of [Ph3C][B(C6F5)(4)], complex 4 showed activity toward syndiospecific polymerization of styrene.

引用

页码：1179 / 1185

页数：7

共 35 条

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