Ir[pF (t-Bu) -ppy]3 (Tris (2- (3-tert-butylphenyl) -4-tert-butylpyridine) iridium) is an effective photocatalyst with excellent catalytic activity. Ir[pF (t-Bu) -ppy]3 can promote organic reactions, especially showing significant potential in the synthesis of new organic compounds. Ir[pF (t-Bu) -ppy]3 can be used to develop green chemical processes and reduce the impact of traditional catalysts on the environment. Ir[pF (t-Bu) -ppy]3 also has broad prospects in photoelectrochemical applications.