Issue 13, 2018

A multifunctional MOF as a recyclable catalyst for the fixation of CO2 with aziridines or epoxides and as a luminescent probe of Cr(vi)

Abstract

A multifunctional metal–organic framework (1) containing 24-nuclear zinc nanocages shows high solvent- and pH-stability. Compound 1 can be employed as a catalyst for the conversion of CO2 with aziridines or epoxides, which can be reused at least ten times just by a simple and rapid method. The PXRD of compound 1 after ten recyclings remains well consistent with the original one. The inductively coupled plasma measurement of a reaction filtrate revealed that only trace amount leakage of Zn2+ was observed, indicating that the framework did not collapse after recyclings. Compound 1 can effectively catalyze the cycloaddition reaction of CO2 and five aziridines or five epoxides with different substituent groups. To our knowledge, this is the first multifunctional MOF-based catalyst used for the conversion of CO2 with aziridines or epoxides. Furthermore, luminescence investigations reveal that compound 1 can also act as a luminescent probe for chromium(VI) anion species, which is seriously harmful to humans and the environment. After five cycle tests, the PXRD of compound 1 is still in accordance with the original one, indicating that compound 1 can serve as a circulatory luminescent probe for Cr(VI) anions.

Graphical abstract: A multifunctional MOF as a recyclable catalyst for the fixation of CO2 with aziridines or epoxides and as a luminescent probe of Cr(vi)

Supplementary files

Article information

Article type
Paper
Submitted
20 Jan 2018
Accepted
14 Feb 2018
First published
14 Feb 2018

Dalton Trans., 2018,47, 4545-4553

A multifunctional MOF as a recyclable catalyst for the fixation of CO2 with aziridines or epoxides and as a luminescent probe of Cr(VI)

C. Cao, Y. Shi, H. Xu and B. Zhao, Dalton Trans., 2018, 47, 4545 DOI: 10.1039/C8DT00254A

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