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Multiwavelength-controlled multicolor photochromism and fluorescence switching were achieved by introducing two photoactive subunits with varied conjugation into the tetraarylethene skeleton with aggregation-induced emission.

A rational design strategy was proposed by introducing borate units into AIE-active molecular skeletons to achieve fluoride-regulated colorimetric and fluorometric switch based on B–F dynamic covalent reactions.

Restriction of intramolecular motions of AIEgens is greatly intensified by introducing dynamic metal coordination bonds to achieve dramatic fluorescence enhancement, which provides a simple and effective way to dramatically improve the emission efficiency of AIEgens. AIEgen-based metal complexes have an abnormal anti-heavy-atom effect, which contributes to their high emission efficiencies without changing their emission nature.