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Updated: Aug 19, 2026

Magnetometric Characterization of Intermediates in the Solid-State Electrochemistry of Redox-Active Metal-Organic Frameworks
Published on: June 9, 2023
[Study on the spectroscopy of paramagnetic compounds [{Cu(bipy) [C6H4(COO)2]}2.H2O]n and [Cu(phen) [C6H4(COO)2]]n]
Rui-ping Chen1, Bing-ping Yang, Hui-yi Zeng
1The Chinese Academy of Sciences, State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Fuzhou 350002, China.
Abstract:
The cluster compounds with d9-d9 magnetic system were investigated because of their magnetic character. Some of the copper(II) compounds with terephthalato as bridged unit, [{Cu(bipy) [C6H4(COO)2]}2.H2O]n and [Cu(phen) [C6H4(COO)2]]n, have been synthesized through a solvothermal reaction, and their crystal structures have been determined by X-ray diffraction. Their shape looks like zigzag-chain. In this paper, the molecular vibration spectra of the title complexes have been studied in detail. The middle and far-infrared spectra, and Raman spectra of the compounds have been reported and their assignments have been made experientially. The characteristic carbonyl absorption of terephthalato group at 1688 cm(-1) disappeared while the complexes formed. The characteristic peaks of COO- group were splited into two peaks respectively that appeared at 1603, 1574 cm(-1) (vasCOO) and 1369, 1356 cm(-1) (vsCOO) in [{Cu(bipy)[C6H4(COO)2]}2.H2O]n, and at 1614, 1605 cm(-1) (vasCOO) and 1373, 1344 cm(-1) (vsCOO) in [Cu(phen) [C6H4(COO)2]]n. The relationship between the structures of the compounds and the spectra has been discussed as well. The coincidence between experiential assignments and the theoretic calculation will be confirmed.
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