Abstracts

Molecule-based multifunctional magneto-luminescent materials, in particular those based on f-element complexes, promise a revolution in the fields of data storage, spintronics, quantum computing, and other cutting-edge areas.^[1-3] The main approach to achieve such materials is the design of specific organic ligands, including (di)phosphine (di)oxides,^[4] which can provide efficient luminescence as well as substantial magnetic anisotropy for the selected lanthanide ions as well as other possible physical functionalities, e.g., chirality, photoswitching phenomena, etc. Another distinct approach employs supporting metalloligands linked to 4f metal complexes, including octa-, hexa- or dicyanidometallates, which were presented to provide such properties as tunable luminescence, magnetic ordering effects, ferroelectricity, or permanent porosity.^[5-7] Herein, we present the family of novel molecular materials, including the coordination polymer (CP) formed by 4f metal complexes bearing dppmO₂ (bis(diphenylphosphino)methane dioxide) ligands, which are further linked by dicyanidometallate(I) ions, [Ag^I(CN)₂]^–. They exhibit strong red temperature-dependent photoluminescence in the solid state for the Eu(III)-based derivative and slow magnetic relaxation effects below 10 K for Yb(III)- and Er(III)-based analogs. Therefore, by diluting Yb(III) or Er(III) centers in the Eu(III)-based coordination matrix, the presented material provides a stable platform for combining luminescent and magnetic properties with prospects for further ligand functionalization towards, e.g., chiral derivatives.References[1] D. N. Woodruff; et al. Chem. Rev.; 2013; 113; 5110-5148.[2] S. T. Liddle; et al. Chem. Soc. Rev.; 2015; 44; 6655-6669.[3] R. Jankowski; et al. Chem. Commun.; 2023; 59; 5961-5986.[4] Y.-Z. Pan; et al. Inorg. Chem. Front.; 2020; 7; 2335-2342.[5] J. A. Hill; et al. J. Am. Chem. Soc.; 2016; 138; 5886-5896.[6] S. Chorazy; et al. Chem. Soc. Rev.; 2020; 49; 5945-6001.[7] J. J. Zakrzewski; et al. Inorg. Chem. Front.; 2021, 8, 452-483.