Wright, J.S., Vitórica-Yrezábal, I.J., Adams, H. et al. (3 more authors) (2015) Solvent-vapour-assisted pathways and the role of pre-organization in solid-state transformations of coordination polymers. IUCrJ, 2 (2). pp. 188-197.
Abstract
A family of one-dimensional coordination polymers, [Ag4(O2C(CF2)2CF3)4(phenazine)2(arene)n]·m(arene), 1 (arene = toluene or xylene), have been synthesized and crystallographically characterized. Arene guest loss invokes structural transformations to yield a pair of polymorphic coordination polymers [Ag4(O2C(CF2)2CF3)4(phenazine)2], 2a and/or 2b, with one- and two-dimensional architectures, respectively. The role of pre-organization of the polymer chains of 1 in the selectivity for formation of either polymorph is explored, and the templating effect of toluene and p-xylene over o-xylene or m-xylene in the formation of arene-containing architecture 1 is also demonstrated. The formation of arene-free phase 2b, not accessible in a phase-pure form through other means, is shown to be the sole product of loss of toluene from 1-tol·tol [Ag4(O2C(CF2)2CF3)4(phenazine)2(toluene)]·2(toluene), a phase containing toluene coordinated to Ag(I) in an unusual μ:η1,η1 manner. Solvent-vapour-assisted conversion between the polymorphic coordination polymers and solvent-vapour influence on the conversion of coordination polymers 1 to 2a and 2b is also explored. The transformations have been examined and confirmed by X-ray diffraction, NMR spectroscopy and thermal analyses, including in situ diffraction studies of some transformations.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2015 The Author(s). This is an open-access article distributed under the terms of the Creative Commons Attribution (CC-BY) Licence (https://creativecommons.org/licenses/by/2.0/uk/legalcode), which permits unrestricted use, distribution, and reproduction in any medium, provided the original authors and source are cited. |
Keywords: | solid-state transformation; coordination polymers; solvent-vapour-assisted conversion. |
Dates: |
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Institution: | The University of Sheffield |
Academic Units: | The University of Sheffield > Faculty of Science (Sheffield) > Department of Chemistry (Sheffield) |
Depositing User: | Symplectic Sheffield |
Date Deposited: | 28 Oct 2016 15:25 |
Last Modified: | 28 Oct 2016 15:25 |
Published Version: | https://dx.doi.org/10.1107/S2052252515000147 |
Status: | Published |
Publisher: | International Union of Crystallography |
Refereed: | Yes |
Identification Number: | 10.1107/S2052252515000147 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:106385 |