Efficient Fixation of CO2 by a Zinc-Coordinated Conjugated Microporous Polymer

• Published in: ChemSusChem Vol. 7; no. 8; pp. 2110 - 2114
• Main Authors: Xie, Yong, Wang, Ting-Ting, Yang, Rui-Xia, Huang, Nian-Yu, Zou, Kun, Deng, Wei-Qiao
• Format: Journal Article
• Language: English
• Published: Weinheim WILEY-VCH Verlag 01.08.2014; WILEY‐VCH Verlag; Wiley Subscription Services, Inc
• Subjects: Carbon Dioxide - chemistry; Carbon Dioxide - isolation & purification; Catalysis; co2 fixation; cyclic carbonates; Ethylenediamines - chemistry; heterogeneous catalysis; Organometallic Compounds - chemistry; polymers; Polymers - chemistry; Porosity; turnover frequencies; Zinc - chemistry; co2 fixation; polymers; heterogeneous catalysis; turnover frequencies; cyclic carbonates
• ISSN: 1864-5631; 1864-564X
• DOI: 10.1002/cssc.201402162

Zinc‐coordinated conjugated microporous polymers (Zn‐CMPs), prepared by linking salen zinc and 1,3,5‐triethynylbenzene, exhibit extraordinary activities (turnover frequencies of up to 11600 h−1), broad substrate scope, and group tolerance for the synthesis of functional organic carbonates by coupling epoxides with CO2 at 120 °C and 3.0 MPa without the use of additional solvents. The catalytic activity of Zn‐CMP is comparable to those of homogeneous catalysts and superior to those of other heterogeneous catalysts. This catalyst could be reused more than ten times without a significant decrease in performance. CO2 cycles go round: Zinc‐coordinated conjugated microporous polymers have been used as highly efficient heterogeneous catalysts for CO2 fixation. This polymer can be used to efficiently catalyze the reaction of internal epoxides with CO2 to form functional organic carbonates. Excellent catalytic activities and improved recyclability of this polymer have been achieved.