Résumé
The Front Cover shows a representative structure of the series of new tetranuclear Dy3+ based cage‐like silsesquioxanes that were synthesized and investigated. All of them present the characteristic green‐yellow Dy3+ emission. In addition, the Dy3+/Y3+ cage exhibits field‐induced Single Molecule Magnetic (SMM) behavior, which makes it the first multifunctional magneto‐luminescent SMM silsesquioxane. More information can be found in the Communication by A. N. Bilyachenko, J. Larionova and co‐workers.