Microwave Assisted Synthesis of a New Triplet Iridium(III) Pyrazine Complex |
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| Authors: | Qiu-hua Wu Chuan-hong Wang Xi-ming Song and Guo-lin Zhang |
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| Institution: | Key Laboratory of Green Synthesis and Preparative Chemistry of Advanced Materials of Liaoning Province, College of Chemistry, Liaoning University, Shenyang 110036, China;Key Laboratory of Green Synthesis and Preparative Chemistry of Advanced Materials of Liaoning Province, College of Chemistry, Liaoning University, Shenyang 110036, China;Key Laboratory of Green Synthesis and Preparative Chemistry of Advanced Materials of Liaoning Province, College of Chemistry, Liaoning University, Shenyang 110036, China;Key Laboratory of Green Synthesis and Preparative Chemistry of Advanced Materials of Liaoning Province, College of Chemistry, Liaoning University, Shenyang 110036, China |
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| 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. |
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| Keywords: | Microwave-assisted synthesis Phosphorescent material Iridium pyrazine com-plex Triplet |
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