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Polymorphism and structural variety in Sn(II) carboxylate coordination polymers revealed from structure solution of microcrystals
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Ramana, Avneet K., Tidey, Jeremiah P., de Lima, Geraldo M. and Walton, Richard I. (2024) Polymorphism and structural variety in Sn(II) carboxylate coordination polymers revealed from structure solution of microcrystals. Small Methods . 2301703. doi:10.1002/smtd.202301703 ISSN 2366-9608. (In Press)
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Official URL: https://doi.org/10.1002/smtd.202301703
Abstract
The crystal structures of four coordination polymers constructed from Sn(II) and polydentate carboxylate ligands are reported. All are prepared under hydrothermal conditions in KOH or LiOH solutions (either water or methanol–water) at 130−180 °C and crystallize as small crystals, microns or less in size. Single‐crystal structure solution and refinement are performed using synchrotron X‐ray diffraction for two materials and using 3D electron diffraction (3DED) for the others. Sn2(1,3,5‐BTC)(OH), where 1,3,5‐BTC is benzene‐1,3,5‐tricarboxylate, is a new polymorph of this composition and has a three‐dimensionally connected structure with potential for porosity. Sn(H‐1,3,5‐BTC) retains a partially protonated ligand and has a 1D chain structure bound by hydrogen bonding via ─COOH groups. Sn(H‐1,2,4‐BTC) contains an isomeric ligand, benzene‐1,2,4‐tricarboxylate, and contains inorganic chains in a layered structure held by hydrogen bonding. Sn2(DOBDC), where DOBDC is 2,5‐dioxido‐benzene‐1,4‐dicarboxylate, is a new polymorph for this composition and has a three‐dimensionally connected structure where both carboxylate and oxido groups bind to the tin centers to create a dense network with dimers of tin. In all materials, the Sn centers are found in highly asymmetric coordination, as expected for Sn(II). For all materials phase purity of the bulk is confirmed using powder X‐ray diffraction, thermogravimetric analysis, and infrared spectroscopy.
Item Type: | Journal Article | ||||||
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Subjects: | Q Science > QD Chemistry | ||||||
Divisions: | Faculty of Science, Engineering and Medicine > Science > Chemistry | ||||||
SWORD Depositor: | Library Publications Router | ||||||
Library of Congress Subject Headings (LCSH): | Coordination polymers, Crystals -- Structure, Electrons -- Diffraction, Supramolecular organometallic chemistry | ||||||
Journal or Publication Title: | Small Methods | ||||||
Publisher: | Wiley | ||||||
ISSN: | 2366-9608 | ||||||
Official Date: | 10 March 2024 | ||||||
Dates: |
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Article Number: | 2301703 | ||||||
DOI: | 10.1002/smtd.202301703 | ||||||
Status: | Peer Reviewed | ||||||
Publication Status: | In Press | ||||||
Access rights to Published version: | Open Access (Creative Commons) | ||||||
Date of first compliant deposit: | 24 April 2024 | ||||||
Date of first compliant Open Access: | 25 April 2024 | ||||||
RIOXX Funder/Project Grant: |
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