Differences in the functional groups of the ligands can change the properties of the cyclometallated compounds and modify their suitability for various applications, such as catalysis and biomedicine.

Herein we report the synthesis and characterization of a new series of cyclometallated palladium compounds bearing an amine-functionalized thiosemicarbazone. The synthesis of the ligands was achieved by condensation of the thiosemicarbazide and aminoacetophenone. Reaction of the ligands with an appropriate metalating agent gave rise to the tetranuclear cyclometallated compounds.

The compounds were characterized by EA, 1H-NMR and IR spectroscopy.