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Electronic, Structural and Functional Versatility in Tetrathiafulvalene-Lanthanide Metal-Organic Frameworks

preprint
submitted on 24.07.2019 and posted on 26.07.2019 by Javier Castella-Gil, Samuel Mañas-Valero, Iñigo J. Vitórica-Yrezábal, Duarte Ananias, João Rocha, Raul Santiago, Stefan T. Bromley, José J. Baldoví, Eugenio Coronado, Manuel Souto, Guillermo Minguez Espallargas
Tetrathiafulvalene-Lanthanide (TTF-Ln) Metal-Organic Frameworks (MOFs) are an interesting class of multifunctional materials in which porosity can be combined with electronic properties such as electrical conductivity, redox activity, luminescence and magnetism. Herein we report a new family of isostructural TTF-Ln MOFs, denoted as MUV-5(Ln) (Ln = Gd, Tb, Dy, Ho, Er), exhibiting semiconducting properties as a consequence of the short intermolecular S···S contacts established along the chain direction between partially oxidised TTF moieties. In addition, this family shows photoluminescence properties and single-molecule magnetic behaviour, finding near-infrared (NIR) photoluminescence in the Yb/Er derivative and slow relaxation of the magnetisation in the Dy and Er derivatives. As such properties are dependent on the electronic structure of the lanthanide ion, we emphasise the immense structural, electronic and functional versatility of this class of materials.

History

Email Address of Submitting Author

manuel.souto@uv.es

Institution

Instituto de Ciencia Molecular (ICMol), Universidad de Valencia

Country

Spain

ORCID For Submitting Author

0000-0003-3491-6984

Declaration of Conflict of Interest

There are no conflicts to declare.

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