Molčanov, Lidija; Androš Dubraja, Lidija; Žilić, Dijana; Molčanov, Krešimir; Barišić, Dario; Pajić, Damir; Lončarić, Ivor; Šantića, Ana; Jurić, Marijana (2023) Light-Induced Intramolecular Electron Transfer in a 1D [CuFe] Coordination Polymer Containing the [Fe(C2O4)3]3 Core. Inorganic Chemistry, 62 (42). pp. 17219-17227. ISSN 1520-510X
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Abstract
A one-dimensional (1D) ladder-like coordination polymer {NH4[{Cu(bpy)}2(C2O4)Fe(C2O4)3]·H2O}n (1; bpy = 2,2'-bipyridine) containing [Cu(bpy)(-C2O4)Cu(bpy)]2+ cationic units linked by oxalate groups of [Fe(C2O4)3]3 building blocks was investigated as a new type of photoactive solid-state system. It exhibits a photocoloration effect when exposed to direct sunlight or UV/Vis irradiation. The photochromic properties and mechanism were studied by powder and single-crystal X-ray diffraction, UV/Vis diffuse reflectance, IR and EPR spectroscopy, magnetization and impedance measurements, and DFT calculations. The process of photochromism involves simultaneous intramolecular electron transfers from the oxalate ligand to Fe(III) and to [CuII(bpy)(μ-C2O4)CuII(bpy)]2+, leading to the reduction of the metal centres to the electronic states Fe(II) and Cu(I), accompanied by the release of gaseous CO2.
| Item Type: | Article | ||||||||
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| Additional Information: | This document is the unedited Author’s version of a Submitted Work that was subsequently accepted for publication in Inorganic Chemistry, Copyright © 2023 American Chemical Society after peer review. To access the final edited and published work see https://pubs.acs.org/doi/10.1021/acs.inorgchem.3c02351 | ||||||||
| Uncontrolled Keywords: | coordination polymer; photochromic properties; intramolecular electron transfers | ||||||||
| Subjects: | NATURAL SCIENCES > Physics NATURAL SCIENCES > Chemistry |
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| Divisions: | Division of Materials Chemistry Division of Physical Chemistry Theoretical Physics Division |
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| Depositing User: | Marijana Jurić | ||||||||
| Date Deposited: | 08 Jan 2025 09:55 | ||||||||
| URI: | http://fulir.irb.hr/id/eprint/9368 | ||||||||
| DOI: | 10.1021/acs.inorgchem.3c02351 |
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