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由二(4′-甲酰肼基苯基)-二甲基硅烷与苯甲醛、4-乙氧基苯甲醛和4-己氧基苯甲醛为原料经缩合反应合成了一系列含有Si的双醛腙类化合物。通过红外、核磁和飞行时间质谱确定其结构;通过紫外、荧光、热重以及差示扫描量热对化合物的性能进行表征。测试结果表明其最大吸收波长在305~320nm之间,溶液中荧光发射波长处于378~423nm之间,固态时荧光发射波长处于387~441nm之间,荧光量子产率在0.38~0.44之间。在热稳定性方面,其热分解温度均大于300℃,熔点在210℃以上,且玻璃态转化温度在139~200℃之间,具有良好的热稳定性。
A series of bis (4’-formylhydrazinophenyl) -dimethylsilane with benzaldehyde, 4-ethoxybenzaldehyde and 4-hexyloxybenzaldehyde were synthesized by condensation reaction of bis Aldehyde hydrazones. Its structure was confirmed by IR, NMR and time of flight mass spectroscopy. The properties of the compounds were characterized by UV, fluorescence, thermogravimetry and differential scanning calorimetry. The results showed that the maximum absorption wavelength was between 305 and 320 nm, the fluorescence emission wavelength was between 378 and 423 nm in solution, the fluorescence emission wavelength was between 387 and 441 nm in solid state, and the fluorescence quantum yield was between 0.38 and 0.44. In the thermal stability, the thermal decomposition temperature is greater than 300 ℃, melting point above 210 ℃, and the glass transition temperature between 139 ~ 200 ℃, has good thermal stability.