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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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Publication details

The article was received on 10 Sep 2017, accepted on 12 Oct 2017 and first published on 12 Oct 2017


Article type: Paper
DOI: 10.1039/C7DT03364H
Citation: Dalton Trans., 2017, Advance Article
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    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, Advance Article , DOI: 10.1039/C7DT03364H

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