Anion exchange dynamics in the capture of perchlorate by a cationic Ag-based MOF


Colinas, Ian R, Inglis, Kenneth K, Blanc, Frederic ORCID: 0000-0001-9171-1454 and Oliver, Scott RJ (2017) Anion exchange dynamics in the capture of perchlorate by a cationic Ag-based MOF. DALTON TRANSACTIONS, 46 (16). pp. 5320-5325.

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Abstract

We report a detailed study of the host-guest interaction for a cationic metal-organic framework that can reversibly capture perchlorate. The structural transformation and flexibility of silver 4,4'-bipyridine nitrate (SBN) upon formation of silver 4,4'-bipyridine perchlorate (SBP) was evaluated by monitoring the anion exchange dynamics using a combination of powder X-ray diffraction (PXRD) with multinuclear <sup>13</sup>C, <sup>15</sup>N and <sup>109</sup>Ag solid-state NMR spectra at different time intervals of the anion exchange. The structural transformation from SBN to SBP is complete within 70 minutes and was determined to take place by a solvent-mediated process. This pathway is confirmed by the morphological changes of the two crystalline materials observed by SEM. This key understanding may lead to application of this material towards perchlorate capture.

Item Type: Article
Additional Information: crosscheck: This document is CrossCheck deposited related_data: Supplementary Information copyright_licence: The Royal Society of Chemistry has an exclusive publication licence for this journal history: Received 7 February 2017; Accepted 28 March 2017; Accepted Manuscript published 28 March 2017
Depositing User: Symplectic Admin
Date Deposited: 14 Jul 2017 08:26
Last Modified: 19 Jan 2023 07:03
DOI: 10.1039/c7dt00475c
Related URLs:
URI: https://livrepository.liverpool.ac.uk/id/eprint/3007751

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