A unique example of an ESIPT coupled AIEE process, associated with a single molecule (1), is utilized for generating multiple luminescent colors (blue-green-white-yellow). The J-aggregated state of 1 forms a luminescent gel in THF and this luminescent property is retained even in the solid state.

Molecular fluorophores based on N,C-chelate, four-coordinate organoborons exhibit tunable solid-state emission colors that cover the whole visible region from blue to red. The emission color can be tuned through the substituents on either quinolines or the boron center.

Lanthanide-based light-emitting supramolecular thermoreversible metallogels with tunable luminescence by controlling the stoichiometry of L-X/EuIII·L-X/TbIII·L-X or L-X/EuIII·L-X/[IrIII(F2ppy)2(biimid)]PF6.