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以2-甲基苯并噻唑、苯甲醛为原料,通过与三氯化铱配合,得到一种新型红色金属铱(III)E-2-苯乙烯基苯并噻唑(SBT)乙酰丙酮(acac)配合物(SBT)2Ir(acac)。通过质谱、核磁、红外光谱对其结构进行了表征,并对其光致发光性能进行了研究。研究结果表明:配合物(SBT)2Ir(acac)在428和471nm处的紫外吸收属于单线态和三线态金属铱到配体的电荷转移吸收(1MLCT和3MLCT);在632nm处有强的金属配合物三线态磷光发射;(SBT)2Ir(acac)金属配合物的EHOMO=-4.8 eV,ELUMO=-2.5eV,磷光量子效率Φ(SBT)2Ir(acac)=0.19。(SBT)2Ir(acac)可能是一种极有潜力的电致磷光材料。
A novel red metal Iridium (III) E-2-styrylbenzothiazole (SBT) acetylacetonate (acac) was obtained from 2-methylbenzothiazole and benzaldehyde by the reaction with iridium trichloride. Complex (SBT) 2Ir (acac). Its structure was characterized by mass spectrometry, nuclear magnetic resonance and infrared spectroscopy. Its photoluminescence properties were also studied. The results show that the ultraviolet absorption of the complex (SBT) 2Ir (acac) at 428 and 471 nm belongs to the charge-transfer absorption (1MLCT and 3MLCT) of singlet and triplet metal Iridium to the ligand; strong metal coordination at 632 nm (SBT) 2Ir (acac) metal complexes with EHOMO = -4.8 eV, ELUMO = -2.5 eV and phosphorescence quantum efficiency Φ (SBT) 2Ir (acac) = 0.19. (SBT) 2Ir (acac) may be a potential electro-phosphorescent material.