Effect of the Redox Properties of the Zinc and Nickel Metal–Organic Frameworks on Peculiarities of Their Interaction with Iodine and the Electronic Conductivity of the Composites Formed

The kinetics of the adsorption and desorption of iodine from solution by isostructural metal–organic frameworks formed by macrocyclic nickel or zinc cations and 4,4′-diphenyldicarboxylate is shown to depend on the nature of the metal (redox-inert Zn(II) or redox-active Ni(II)/Ni(III)). The nickel MO...

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Bibliographic Details
Published in:	Theoretical and experimental chemistry Vol. 52; no. 2; pp. 104 - 110
Main Authors:	Gurtovyi, R. I., Tsymbal, L. V., Kuzmin, R. M., Odynets, I. V., Lampeka, Ya. D.
Format:	Journal Article
Language:	English
Published:	New York Springer US 01-05-2016
Subjects:	Chemistry Chemistry and Materials Science Chemistry/Food Science
Online Access:	Get full text
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Summary:	The kinetics of the adsorption and desorption of iodine from solution by isostructural metal–organic frameworks formed by macrocyclic nickel or zinc cations and 4,4′-diphenyldicarboxylate is shown to depend on the nature of the metal (redox-inert Zn(II) or redox-active Ni(II)/Ni(III)). The nickel MOF has greater adsorption capacity, while the composite formed by this reaction has electronic conductivity. The observed differences are attributed to the oxidation of nickel(II) to nickel(III) by adsorbed iodine, which leads to formation of iodide or polyiodide anions. On the other hand, in the case of the zinc complex, an adsorption process is not accompanied by redox transformations.
ISSN:	0040-5760 1573-935X
DOI:	10.1007/s11237-016-9457-7