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Microwave Assisted Synthesis of a New Triplet Iridium(III) Pyrazine Complex
Qiu-hua Wu,Chuan-hong Wang,Xi-ming Song,Guo-lin Zhang*
Author NameAffiliationE-mail
Qiu-hua Wu Key Laboratory of Green Synthesis and Preparative Chemistry of Advanced Materials of Liaoning Province, College of Chemistry, Liaoning University, Shenyang 110036, China  
Chuan-hong Wang Key Laboratory of Green Synthesis and Preparative Chemistry of Advanced Materials of Liaoning Province, College of Chemistry, Liaoning University, Shenyang 110036, China  
Xi-ming Song Key Laboratory of Green Synthesis and Preparative Chemistry of Advanced Materials of Liaoning Province, College of Chemistry, Liaoning University, Shenyang 110036, China  
Guo-lin Zhang* Key Laboratory of Green Synthesis and Preparative Chemistry of Advanced Materials of Liaoning Province, College of Chemistry, Liaoning University, Shenyang 110036, China glzhang@lnu.edu.cn 
Abstract:
A new cyclometalated iridium(III) complex Ir(DPP)3 (DPP=2,3-diphenylpyrazine) was pre-pared by reaction of DPP with iridium trichloride hydrate under microwave irradiation. The structure of the complex was confirmed by elemental analysis, 1H NMR, and mass spec-troscopy. The UV-Vis absorption and photoluminescent properties of the complex were investigated. The complex shows strong 1MLCT (singlet metal to ligand charge-transfer) and 3MLCT (triplet metal to ligand charge-transfer) absorption at 382 and 504 nm, respec-tively. The complex also shows strong photoluminescence at 573 nm at room temperature.These results suggest the complex to be a promising phosphorescent material.
Key words:  Microwave-assisted synthesis, Phosphorescent material, Iridium pyrazine com-plex, Triplet
FundProject:
Microwave Assisted Synthesis of a New Triplet Iridium(III) Pyrazine Complex
吴秋华,王传红,宋溪明,张国林*
摘要:
采用微波辅助加热方法,2,3-二苯基吡嗪(DPP)与水合三氯化铱(IrCl3·3H2O)反应制备了[Ir(DPP)3],通过1H NMR、元素分析和质谱方法对配合物结构进行了表征,并研究了配合物的吸收光谱和光致发光光谱. 结果表明,配合物Ir(DPP)3在382和504 nm处存在单重态1MLCT(金属到配体的电荷跃迁)和三重态3MLCT的吸收;在573 nm 处有较强的金属配合物三重态的磷光发射.
关键词:  微波合成,磷光材料,吡嗪铱配合物,三重态
DOI:10.1088/1674-0068/23/03/355-357
分类号: