Abstract

The luminescent studies of cyclometalated Ir(III) complexes have attracted considerable interests in recent years. To fulfill the needs of emission wavelengths in various areas, the strategic emission color tuning of iridium(III) complexes is vital for their applications as phosphorescent materials. However, a feasible color-tuning method for iridacycles with fused carbon-rings (C∧C) has not been reported yet. Herein, a convenient color-tuning strategy for C∧C-based Iridacycles is accomplished with the aid of DFT calculations. The developed synthetic protocol allowed facile modifications on C∧C units and N∧N units via a one-pot synthesis starting from iridium vinyl complexes, accessing the novel phosphorescent iridapolycycles [(N∧N)Ir(C∧C)ClPPh3]+.

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