A novel Re(I) complex with oxdiazole moiety: Synthesis, characterization, photo-and electro-luminescence properties

摘要

In this paper, we report a novel phosphorescent Re(l) complex of Re(CO)_3(OP)Br, where OP = 2-(5-phenyl-[l,3,4]oxadiazol-2-yl)-pyridine, including its photophysical properties, geometric/electronic structures, electrochemical and thermal properties. Experimental data suggest that Re(CO)_3(OP)Br is a promising yellow emitter peaking at 545 nm with short excited state lifetime of ~0.06 us. The Re(I) center localizes in a distorted octahedral field in Re(CO)_3(OP)Br and the emissive state of Re(CO)_3(OP)Br has metal-to-ligand-charge-transfer character, leading to the room-temperature phosphorescence.