Chemical Fixation of CO2 and Other Heterogeneous Catalytic Studies by Employing a Layered Cu-Porphyrin Prepared Through Single-Crystal to Single-Crystal Exchange of a Zn Analogue

Dutta, Gargi and Jana, Ajay Kumar and Natarajan, Srinivasan (2018) Chemical Fixation of CO2 and Other Heterogeneous Catalytic Studies by Employing a Layered Cu-Porphyrin Prepared Through Single-Crystal to Single-Crystal Exchange of a Zn Analogue. In: CHEMISTRY-AN ASIAN JOURNAL, 13 (1). pp. 66-72.

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Abstract

A solvothermal reaction of Zn(NO3)(2)center dot 6H(2)O, tetra-(4-pyridyl) porphyrin (H2TPyP), and 4,4'-oxybis(benzoic acid) (H(2)OBA) resulted in a new two-dimensional Zn-porphyrin metal-organic framework compound, Zn-2(C40H24N8)(0.5)(C14H8O5)(DMA)](DMA)(H2O) 6 (1; DMA= N, N-dimethylacetamide). The Zn-II ions present in 1 could be exchanged by using a solution of Cu(NO3)(2)center dot 3H(2)O in DMA at room temperature to give Cu-2(C40H24N8)(0.5)(C14H8O5)(DMA)](DMA)(H2O)(3) (Cu is an element of 1). The extra-framework solvent molecules have been shown to be reversibly removed or exchanged without collapse of the framework. Solvent-free Cu is an element of 1 was explored as an active heterogeneous catalyst towards three different organic reactions: 1) the chemical fixation of CO2 into cyclic carbonate at room temperature and 1 atm; 2) the nitroaldol reaction under solvent-free conditions, and 3) the three-component coupling of aminopyridine, benzaldehyde, and aryl alkynes followed by 5-exo-dig cyclization to produce the important pharmacophore imidazopyridine.

Item Type:	Journal Article
Publication:	CHEMISTRY-AN ASIAN JOURNAL
Publisher:	10.1002/asia.201701384
Additional Information:	Copy right for this article belongs to the WILEY-V C H VERLAG GMBH, POSTFACH 101161, 69451 WEINHEIM, GERMANY
Department/Centre:	Division of Chemical Sciences > Solid State & Structural Chemistry Unit
Date Deposited:	25 Jan 2018 07:37
Last Modified:	25 Jan 2018 07:37
URI:	http://eprints.iisc.ac.in/id/eprint/58854

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