Synthesis and study of Au(III)–indolizine derivatives: turn-on luminescence by photo-induced controlled release

The photo- and structural properties of a series of Au(III) indolizine complexes were determined. Controlled release of halogenated indolizine derivatives from the corresponding Au(III) complexes was achieved by photoinduced C–X bond formation, which provided turn-on luminescence with an increase in emission intensity of up to 67 times.