Self-supported organometallic rhodium quinonoid nanocatalysts for stereoselective polymerization of phenylacetylene

被引：159

作者：

Park, Kang Hyun

Jang, Kwonho

Son, Seung Uk ^{[1
]}

Sweigart, Dwight A.

机构：

[1] Sungkyunkwan Univ, Dept Chem, Suwon 440746, South Korea

[2] Brown Univ, Dept Chem, Providence, RI 02912 USA

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2006年 / 128卷 / 27期

基金：

欧洲研究理事会;

关键词：

D O I：

10.1021/ja062907o

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Heterogeneous self-supported organometallic nanocatalysts (ONs) were synthesized by treatment of the η6-π-hydroquinone rhodium complex [(1,4-hydroquinone)Rh(COD)]+ with Al(Oi-Pr)3. The organometallic nanocatalysts, the size of which can be controlled by alteration of the reaction conditions, show high catalytic activities in the stereoselective polymerization of phenylacetylene to produce cis-poly(phenylacetylene). A key feature of the ON catalyst synthesis is a facile η6 to η4 hapticity change occurring in the quinonoid ring, which is triggered by deprotonation of the -OH groups by Al(Oi-Pr)3, with concomitant coordination of the quinone oxygen atoms to the aluminum. Copyright © 2006 American Chemical Society.

引用

页码：8740 / 8741

页数：2

共 20 条

[1] Nanoparticles as recyclable catalysts: The frontier between homogeneous and heterogeneous catalysis [J].