Zn, Cd and Cu Coordination Polymers for Metronidazole Sensing and for Ullmann and Chan-Lam Coupling Reactions

Manna, K and Boruah, R and Natarajan, S (2024) Zn, Cd and Cu Coordination Polymers for Metronidazole Sensing and for Ullmann and Chan-Lam Coupling Reactions. In: Chemistry - An Asian Journal, 19 (19).

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Abstract

Five compounds, Zn2(bpe)(BPTA)2(H2O)2 â� 2H2O (1); Zn(bpe)(BPTA) (2); Cd(bpe)(BPTA)H2O (3); Cd(BPTA) (bpmh) â� 2H2O (4); and Cu2(BPTA)2(bpmh)3(H2O)2 â� 2H2O (5) were prepared employing 2,5-bis(prop-2-yn-1-yloxy)terephthalic acid (2, 5 BPTA) as the primary ligand and 1,2-di(pyridin-4-yl)ethane (4, 4â�² bpe) (1â��3) and 1,2-bis(pyridin-3-ylmethylene)hydrazine (bpmh) (4â��5) as the secondary ligands. Single crystal studies indicated that the compounds 1, 3 and 5 have two-dimensional layer structures and compounds 2 and 4 three-dimensional structures. The luminescence behaviour of the compounds 2 and 3 were explored for the sensing of metronidazole in aqueous medium. The studies indicated that the compounds can detect metronidazole in ppm level both in solution as well as simple paper strips. The Cu compound 5 was found to lose the coordinated water molecule at 100 °C without any structural change. The coordinatively unsaturated Cu-centre were examined towards the Lewis acidic character by carrying out the Ullmann type Câ��C homocoupling reaction of the aromatic halide compounds. The compounds, 4 and 5, also have the Lewis basic functionality arising out the =Nâ��N=, aza groups. The bifunctional nature of the coordination polymers (CP) was explored towards the Chan-Lam coupling reaction between phenyl boronic acid and aniline derivatives in the ethanol medium. In both the catalytic reactions, good yields and recyclability were observed. The present studies illustrated the rich diversity that the transition metal containing compounds exhibit in extended framework structures. © 2024 Wiley-VCH GmbH.

Item Type:	Journal Article
Publication:	Chemistry - An Asian Journal
Publisher:	John Wiley and Sons Ltd
Additional Information:	The copyright for this article belongs to the publishers.
Keywords:	Aniline; Cadmium compounds; Cobalt compounds; Copper compounds; Ethane; Ethanol; Luminescence of organic solids; Metal-Organic Frameworks; Pyridine; Unsaturated compounds; Zinc compounds, Chan-lam coupling; Coordination Polymers; Coordination-polymers; Coupling reaction; Luminescence sensing; Metalorganic frameworks (MOFs); Metronidazole; Secondary ligands; Terephthalic acids; Ullmann coupling reaction, Ligands, aniline derivative; benzeneboronic acid; ethane; halide; hydrazine; metal organic framework; metronidazole; polymer; salicylic acid; terephthalic acid, alcohol; article; catalysis; controlled study; drug analysis; drug development; heterogeneous catalysis; luminescence; nonhuman; water
Department/Centre:	Division of Chemical Sciences > Solid State & Structural Chemistry Unit
Date Deposited:	29 Oct 2024 12:40
Last Modified:	29 Oct 2024 12:40
URI:	http://eprints.iisc.ac.in/id/eprint/86600

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