Adenine-Based Coordination Polymers: Synthesis, Structure, and Properties

Sushrutha, SR and Hota, Raghunandan and Natarajan, Srinivasan (2016) Adenine-Based Coordination Polymers: Synthesis, Structure, and Properties. In: EUROPEAN JOURNAL OF INORGANIC CHEMISTRY (18). pp. 2962-2974.

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Abstract

A solvothermal reaction of metal nitrate (M = Zn, Cd), cyclohexanedicarboxylic acid, and adenine resulted in the isolation of three new coordination polymers, Zn-4(1,4-CHDA)(2.5)(ad)(3)2H(2)O] 7H(2)O 2DMA (CHDA = cyclohexane dicarboxylic acid, ad = adenine, DMA = dimethylacetamide), I, Cd-3(1,4-CHDA)(2)(ad)(2)H2O], II, Cd(1,2-CHDA)(9-HEA)H2O] 4H(2)O 9-HEA = 9-(2-hydroxyethyl)adenine], III. Single-crystal structural studies show that compounds I and II have three-dimensional structures whereas III has a two-dimensional one. The formation of a Cd-8 macrocycle in II, based on a polyhedral arrangement, appears to be new. In all the compounds, the amino group of the adenine appears to be free and can be utilized for the detection of explosives such as nitrophenol, dinitrophenol, and trinitrophenols. The hydroxyl nitro aromatics appears to have a much stronger influence on the luminescence behavior of the compounds with very low detection limits. This, in fact, provides a new opportunity for exploring these compounds for the detection of harmful nitro aromatics in solution. The present compounds also exhibit considerable sensitivity towards metal ion detection, especially Fe2+/Fe3+, Cr3+, Ag+, and Hg2+ ions in solution. Base-catalyzed Knoevenagel condensation studies exhibit good conversion and selectivity.

Item Type:	Journal Article
Publication:	EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
Publisher:	WILEY-V C H VERLAG GMBH
Additional Information:	Copy right for this article belongs to the WILEY-V C H VERLAG GMBH, POSTFACH 101161, 69451 WEINHEIM, GERMANY
Keywords:	Heterogeneous catalysis; Sensors; Polymers; Macrocycles; Lewis bases; Adenine
Department/Centre:	Division of Chemical Sciences > Solid State & Structural Chemistry Unit
Date Deposited:	19 Aug 2016 09:53
Last Modified:	19 Aug 2016 09:53
URI:	http://eprints.iisc.ac.in/id/eprint/54418

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