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X.-Q. LIU1, P.-B. SI1, A.-H. ZHOU1, D.-Q. WANG1, M.-Y. TENG1,* , Q. WANG1,* , B. LIU1,*
- Faculty of Chemistry & Chemical Engineering, Yunnan Normal University, Kunming 650500, China
Three iridium complexes of (dpio)2Ir(pic), (dpio)2Ir(3-IQA) and (dpio)2Ir(2-QA) were synthesized efficiently by using 3,6-diphenylimidazo[2,1-b]oxazole (dpio) as primary ligands which can be prepared by facile and environmental friendly method, and 2-picolinic acid (pic), isoquinolinic acid (3-IQA) and 2-quinolinic acid (2-QA) as auxiliary ligands. Their maximum emission wavelengths are from 585 nm to 637 nm, and the luminous colors are between the yellow to red light region. The quantum efficiencies range from 14.3% to 23.8%. The results show that they have good luminous performances and are candidates as red and orange organic phosphorous materials..
Imidazolo[2,1-b]oxazole derivative, Iridium complexes, Phosphorescent materials.
Submitted at: Jan. 22, 2021
Accepted at: Aug. 10, 2022
X.-Q. LIU, P.-B. SI, A.-H. ZHOU, D.-Q. WANG, M.-Y. TENG, Q. WANG, B. LIU, Synthesis and properties of three Ir(III) complexes using 3,6-diphenylimidazo[2,1-b]oxazole as primary ligand, Journal of Optoelectronics and Advanced Materials Vol. 24, Iss. 7-8, pp. 395-401 (2022)
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