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Electronic, structural and functional versatility in tetrathiafulvalene-lanthanide metal-organic frameworks

DOI: 10.1002/chem.201902855 DOI Help

Authors: Javier Castella-gil (Universidad de Valencia) , Samuel Mañas-valero (Universidad de Valencia) , Inigo Vitórica-yrezábal (University of Manchester) , Duarte Ananias (University of Aveiro) , João Rocha (University of Aveiro) , Raul Santiago (Universitat de Barcelona) , Stefan T. Bromley (Institució Catalana de Recerca i Estudis Avançats (ICREA)) , José J. Baldoví (Max Planck Institute for the Structure and Dynamics of Matter) , Eugenio Coronado (Universidad de Valencia) , Manuel Souto (Universidad de Valencia) , Guillermo Minguez Espallargas (Universidad de Valencia)
Co-authored by industrial partner: No

Type: Journal Paper
Journal: Chemistry - A European Journal

State: Published (Approved)
Published: July 2019
Diamond Proposal Number(s): 17379

Abstract: 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 a new family of isostructural TTF‐Ln MOFs is reported, 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, the immense structural, electronic and functional versatility of this class of materials is emphasised.

Journal Keywords: conductivity; lanthanide; luminescence; metal–organic framework; single-molecule magnet; tetrathiafulvalene

Subject Areas: Chemistry

Instruments: I19-Small Molecule Single Crystal Diffraction