Semi-rigid imidazolium carboxylate controlled structural topologies in zwitterionic coordination networks

Paladugu, S and Chatla, N B and G, Prabusankar (2015) Semi-rigid imidazolium carboxylate controlled structural topologies in zwitterionic coordination networks. Polyhedron, 89. pp. 322-329. ISSN 0277-5387

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Abstract

The zwitterionic coordination networks [L2Mn(H2O)2]∞ (1), [L2Co(H2O)2]∞ (2), [L2Ni(H2O)4]∞ (3), [L2Cu]∞ (4), [L2Zn(H2O)2]∞ (5) and [L3Cd2(Br)2]∞ (6) were synthesized from the reaction between the semi-rigid imidazolium carboxylate spacer LH2+Br− and the corresponding metal nitrates in DMF/H2O at 130 °C. The solid state structures of 1–6 were confirmed by the single-crystal X-ray diffraction technique. The molecules 1, 2 and 5 are isostructural one-dimensional coordination polymers. 3 was isolated as a monomer and the monomers are associated into a three dimensional fashion through O–H⋯O hydrogen bonds, while 4 was isolated as a 1D coordination polymer. Compound 6 was constructed as a two-dimensional coordination framework with a rare [Cd2(μ2-Br)2] core. The purity of 1–6 in the bulk was confirmed by the powder X-ray diffraction technique. Furthermore the electronic properties of 1–6 were studied using UV–Vis spectroscopy and the thermal stabilities of 1–6 were confirmed by TGA.

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IITH Creators:
IITH CreatorsORCiD
G, Prabusankarhttp://orcid.org/0000-0003-1772-135X
Item Type: Article
Additional Information: P.S. thanks CSIR for a fellowship.
Uncontrolled Keywords: Imidazolium carboxylate; Late transition metals; Coordination polymers; Zwitterionic compounds; Metal-organic frameworks
Subjects: Chemistry
Divisions: Department of Chemistry
Depositing User: Library Staff
Date Deposited: 05 Mar 2015 11:15
Last Modified: 12 Sep 2017 06:26
URI: http://raiith.iith.ac.in/id/eprint/1377
Publisher URL: https://doi.org/10.1016/j.poly.2014.12.039
OA policy: http://www.sherpa.ac.uk/romeo/issn/0277-5387/
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