Abstract The syntheses of pyrene-functionalised bis (thiosemicarbazonato) zinc and-copper complexes are reported. In contrast to previously reported bis (thiosemicarbazonato) Cu 2+ complexes which are nonfluorescent, the pyrene group remains highly fluorescent. The compounds have been characterised by using a wide range of techniques including reverse- phase HPLC, cyclic voltammetry, NMR, electronic absorption (UV/Vis), infrared and ...