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设计合成了一种新型二苯胺螺芴化合物2,7-双二苯胺-螺环[芴-7,9′-苯并芴](DDSF),通过了~1HNMR,MS,IR图谱测试和元素分析,每步反应产率均在70%以上;利用紫外可见吸收光谱、荧光光谱研究了其发光性能.结果表明,在固体状态下,其荧光发射峰红移40 nm左右.然而溶液荧光强度及荧光量子产率都随着溶剂极性的变化有着明显差异;通过循环伏安法测得其氧化峰电位为0.77 V,计算出DDSF的HOMO能级为-5.10 eV,LUMO能级为-2.95 eV.
A novel diphenylamine spirofluorene compound, 2,7-diphenylamine-spirocyclo [fluorene-7,9’-benzofluorene] (DDSF), has been designed and synthesized and has been characterized by ~ 1HNMR, MS, IR spectrum and elemental analysis , And the yield of each reaction was over 70%. The luminescence properties of the samples were studied by UV-Vis absorption spectra and fluorescence spectra. The results showed that the fluorescence emission peak was red-shifted by about 40 nm in solid state. However, the fluorescence intensity and fluorescence The quantum yield of the DDSF is obviously different from that of the solvent. The oxidation peak potential is 0.77 V by cyclic voltammetry. The calculated HOMO energy level is -5.10 eV and the LUMO energy level is -2.95 eV.