Collins, SM, Kepaptsoglou, DM, Butler, KT et al. (4 more authors) (2018) Subwavelength Spatially Resolved Coordination Chemistry of Metal–Organic Framework Glass Blends. Journal of the American Chemical Society, 140 (51). pp. 17862-17866. ISSN 0002-7863
Abstract
Microstructured metal–organic framework (MOF) glasses have been produced by combining two amorphous MOFs. However, the electronic structure of these materials has not been interrogated at the length scales of the chemical domains formed in these glasses. Here, we report a subwavelength spatially resolved physicochemical analysis of the electronic states at visible and UV energies in a blend of two zeolitic imidazolate frameworks (ZIFs), ZIF-4-Co and ZIF-62-Zn. By combining spectroscopy at visible and UV energies as well as at core ionization energies in electron energy loss spectroscopy in the scanning transmission electron microscope with density functional theory calculations, we show that domains less than 200 nm in size retain the electronic structure of the precursor crystalline ZIF phases. Prototypical signatures of coordination chemistry including d–d transitions in ZIF-4-Co are assigned and mapped with nanoscale precision.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | Copyright © 2018 American Chemical Society. This document is the unedited Author’s version of a Submitted Work that was subsequently accepted for publication in JACS after peer review. To access the final edited and published work see https://doi.org/10.1021/jacs.8b11548 |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Chemical & Process Engineering (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 11 Jan 2019 13:51 |
Last Modified: | 21 May 2020 11:46 |
Status: | Published |
Publisher: | American Chemical Society |
Identification Number: | 10.1021/jacs.8b11548 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:140925 |