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Issue 45, 2017
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Catalytic properties of a cobalt metal–organic framework with a zwitterionic ligand synthesized in situ

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Abstract

Herein we describe the high yield synthesis of a highly crystalline cobalt(II) MOF with a novel zwitterionic ligand made up of 3,3′,4,4′-BPTC and 1,4-cyclohexanediamine, obtained in situ during the hydrothermal synthesis. The compound with the molecular formula C46H38N4O14Co·2H2O has a molecular mass of 965.7783 g mol−1, a triclinic crystalline system (a = 5.86 Å, b = 9.28 Å, c = 19.92 Å, α = 83.93°, β = 88.01°, γ = 78.59), it is thermally stable up to 300 °C and presents structural stability before and after removing the solvent molecules from its pores. This novel material showed catalytic properties in an electrophilic substitution reaction of indoles and aldehydes allowing the syntheses of bis(indolyl)methanes in high yields under mild reaction conditions and can be reused at least once with the same catalytic activity.

Graphical abstract: Catalytic properties of a cobalt metal–organic framework with a zwitterionic ligand synthesized in situ

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Article information


Submitted
10 Sep 2017
Accepted
12 Oct 2017
First published
12 Oct 2017

Dalton Trans., 2017,46, 15698-15703
Article type
Paper

Catalytic properties of a cobalt metal–organic framework with a zwitterionic ligand synthesized in situ

T. A. Grigolo, S. D. de Campos, F. Manarin, G. V. Botteselle, P. Brandão, A. A. Amaral and E. A. de Campos, Dalton Trans., 2017, 46, 15698
DOI: 10.1039/C7DT03364H

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