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Phosphonate Metal-Organic Frameworks: A Novel Family of Semiconductors

preprint
submitted on 21.01.2020 and posted on 22.01.2020 by Konrad Siemensmeyer, Craig A. Peeples, Patrik Tholen, Bünyemin Çoşut, Gabriel Hanna, Gündoğ Yücesan

Herein is reported the first semiconducting and magnetic phosphonate metal-organic framework (MOF), TUB75, which contains a one-dimensional inorganic building unit composed of a zig-zag chain of corner-sharing copper dimers. The solid-state UV-Vis spectrum of TUB75 reveals the existence of a narrow band gap of 1.4 eV, which agrees well with the 1.77 eV one obtained from DFT calculations. Magnetization measurements show that TUB75 is composed of antiferromagnetically coupled copper dimer chains. Due to their rich structural chemistry and exceptionally high thermal/chemical stabilities, phosphonate MOFs like TUB75 may open new vistas in engineerable electrodes for supercapacitors.

History

Email Address of Submitting Author

yuecesan@tu-berlin.de

Institution

Technische Universität Berlin

Country

Germany

ORCID For Submitting Author

0000-0002-5105-7280

Declaration of Conflict of Interest

No conflict of interest

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