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Type: Journal article
Title: Probing solid-state breathing and structural transformations in a series of silver(I) porous coordination polymers
Author: Bloch, W.
Sumby, C.
Citation: European Journal of Inorganic Chemistry, 2015; 2015(22):3723-3729
Publisher: Wiley-VCH Verlag
Issue Date: 2015
ISSN: 1434-1948
Statement of
Witold M. Bloch and Christopher J. Sumby
Abstract: Key observations of the role anions and solvents play in the solid-state flexibility of a series of isostructural silver, I, porous coordination polymers, PCPs, are reported. Building upon earlier results for the perchlorate salt, the structural transformations of two new analogues of a, D PCP, Ag, dpzm, X, dpzm, -dipyrazinylmethane, X, PF, ClO, BF, which contain either PF, a, orBF, c, counteri- ons, are investigated. These materials undergo a remarkable guest-induced single-crystal to single-crystal, SC-SC, solid- state contraction and expansion, which is accurately elucidated by X-ray crystallography. The extent of breathing for PCPs, a, c is shown to relate to the type of anion contained within their, D structures and the nature of the solvent guest. Using X-ray diffraction, further light is shed on structural transformations that take place upon desolvation for this group of materials. These investigations reveal that, while the as-synthesised forms, containing DMSO, undergo a transformation, porous, D to close-packed, D, porous, D to, D, upon desolvation, the solvent-exchanged forms are more stable.
Keywords: Metal-organic frameworks; host-guest chemistry; structural transformation; breathing; N-ligands
Rights: © 2015 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim
DOI: 10.1002/ejic.201500647
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