This compound is primarily utilized in organic synthesis and catalysis, particularly in coupling reactions such as the Ullmann reaction, where it facilitates the formation of carbon-carbon and carbon-heteroatom bonds. Its unique structure, combining copper(I) with phenanthroline and triphenylphosphine ligands, enhances its stability and reactivity, making it effective in promoting cross-coupling processes. Additionally, it is employed in photophysical studies due to its luminescent properties, which are useful in the development of organic light-emitting diodes (OLEDs) and other optoelectronic devices. Its ability to act as a catalyst in polymerization reactions also makes it valuable in materials science for creating advanced polymers with specific properties.