Synthesis and Characterization of a New Solvent Dependent-Emitting Iridium(III) Complex

Iridium(III) complexes stand out due to their photophysical properties arising from the strong spin–orbit coupling, enabling a wide range of applications for these complexes. Based on this, the present work reports the synthesis of a new red-emitting iridium complex, [Ir(ppz)₂(pqc)]. The complex was characterized by FTIR, NMR (1H, 13C, COSY, NOESY, and HSQC) spectroscopy, confirming the coordination of the ligands through the N^N donor atoms. UV–Vis absorption and photoluminescence spectroscopy were also performed in different solvents, demonstrating that changes in the solvent affect the photophysical properties of the complex. The successful synthesis and characterization of this complex highlight its potential for future biological applications.