electrofluorochromism. The stereochemistry of the NTBAs was investigated by single-crystal X-ray diffraction. The NTBAs showed a strong blue emission in N,N-dimethylformamide. When the NTBAs were introduced into electrochromic devices (ECDs), all six ECDs showed multicolored electrochromism. All six ECDs displayed electrofluorochromic behavior, which was possibly caused by the monocationic radical formed from the
通过结合阴极电致变色
苯甲酸酯作为颜色调整单元和阳极电致变色
三苯胺作为荧光体,设计了六种新型的电致变色材料,即4,4',4''-亚硝基三
苯甲酸(NTBAs,af),具有供体-受体结构。淬灭单元实现多重电致变色和电致变色。通过单晶X射线衍射研究了NTBA的立体
化学。NTBA在N,N中显示出强烈的蓝色发射-二甲基甲酰胺。将NTBA引入电致变色设备(
ECD)时,所有六个
ECD均显示出彩色电致变色现象。所有六个
ECD均显示出电致变色行为,这可能是由
三苯胺中心氧化形成的单阳离子自由基引起的。酯取代基显着影响着色状态,转换循环能力,着色效率和电致变色性质。具有饱和烷基取代基(a–c)的化合物显示三种颜色状态,即黄色(±2.8 V),浅红色(±3.0 V)和橙红色(±3.6 V),相对较好的循环性,高着色度效率(> 220 cm 2 C -1),以及良好的电致变色性能。链长最短的化合物(a)表现最佳。