【摘要】 合成两种含双键的铱配合物磷光材料Ir(ppy)2(ADP)(ADP=1,3-二苯基-2-烯丙基-1,3-丙二酮,ppy=2-苯基吡啶),Ir(ppy)2(VPHD)(VPHD=6-对乙烯基苯基-2,4-己二酮).与铱配合物Ir(ppy)2(acac)(acac=2,4-戊二酮)的光谱数据比较,Ir(ppy)2(VPHD)具有相似的磷光光谱,最强发射波长为520 nm,发射强的绿色磷光.Ir(ppy)2(ADP)配合物的磷光光谱随测试样品浓度的变化而变化,且发光较弱.这是由于ADP配体中两个苯环的引入,使配合物的发光波长明显向短波长方向移动,且发光效率降低.该结果为合成新的磷光材料提供了参考依据.更多还原

【Abstract】 Two iridium complexes,Ir(ppy)2(ADP)(ADP=2-allyl-1,3-diphenyl-1,3-propanedione,ppy=2-phenyl-pyridine),Ir(ppy)2(VPHD)(VPHD=6-(4-vinylphenyl)-2,4-hexanedione),have been synthesized and characterized by 1H-NMR and FTIR.Compared with spectra of the reported iridium complex Ir(ppy)2(acac)(acac=2,4-acetylacetone),Ir(ppy)2(VPHD) and Ir(ppy)2(acac) have the similar phosphorescence spectra,and their excellent green luminescence were observed with the maximum emission wavelengh at 520 nm.The maximum emission wavelengh for the Ir(ppy)2(ADP) in ethyl acetate solutions changed with its concentrations,from 487 nm(10-5 mol·L-1) to 516 nm(10-4 mol·L-1).The maximum emission bands for the Ir(ppy)2(ADP) shifted to shorter wavelengths compared with those of the other two Ir3+ complexes.更多还原