Résumé
Luminescent lanthanide‐based silsesquioxane cages: An association of coordination and sol‐gel chemistries is a powerful tool to design new functional materials. A new family of tetranuclear lanthanide‐based cage‐like silsesquioxanes with unusual prism‐like topology was readily obtained. They exhibit efficient Eu3+ or Tb3+ characteristic emissions in solid state, which makes them the first luminescent cage‐like silsesquioxanes. More information can be found in the Communication by A. N. Bilyachenko, J. Larionova et al. on page 16594.