Dual-ligand complex catalysts for the cycloaddition of propylene oxide and carbon dioxide

被引：13

作者：

Yuan, Qi-Yue ^{[1
]}

Zhang, Peng ^{[1
]}

Shi, Yan-Li ^{[1
]}

Liu, Ding-Hua ^{[1
]}

机构：

[1] Nanjing Tech Univ, Coll Chem Engn, State Key Lab Mat Oriented Chem Engn, Nanjing 210009, Jiangsu, Peoples R China

来源：

JOURNAL OF MOLECULAR STRUCTURE | 2017年 / 1150卷

关键词：

Dual-ligand complex; Cycloaddition; Carbon dioxide; Propylene oxide; Propylene carbonate; COUPLING REACTIONS; CRYSTAL-STRUCTURE; POLYMER NETWORKS; CO2; FRAMEWORKS; EPOXIDES; CAPTURE; SYSTEM;

D O I：

10.1016/j.molstruc.2017.08.056

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

This paper reported some dual-ligand complexes composed of ZnBr2, N-methylimidazole(NMI) and ammonium bromine. The entire complexes were characterized by different spectroscopic techniques. The X-ray crystallography data of sample ZnBr2/tetra methyl ammonium bromide/N-methylimidazole displayed that the Zn atom was coordinated with three bromine atoms, a nitrogen atom, and an independent cation to form the tetracoordinated complex. However, the other samples cannot form the structure, which plays an important role in the catalytic performances due to the limitation of some characteristics of the ammonium bromine. The catalytic activity of the formed complex containing active leaving group was higher than that of non-containing active leaving group. And the catalytic activity for the cycloaddition of propylene oxide and carbon dioxide enhanced dramatically, in which the yield of propylene carbonate could be more than 85% at the mild conditions. (C) 2017 Elsevier B.V. All rights reserved.

引用

页码：329 / 334

页数：6

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