3′,6′-二(N,N-二苯氨基)荧烷的合成与光学性能

Synthesis and Optic Properties of 3′,6′-Bis (N,N-diphenylamino) Fluoran

以间苯二酚和邻苯二甲酸酐为原料,合成了3′,6′-二(N,N-二苯氨基)荧烷,并通过FTIR、1H NMR、MS确证了化合物的结构.热致变色研究结果表明,该化合物在加热条件下能从白色向蓝色转变,转变起始温度为110,℃.吸收光谱和荧光光谱检测结果表明,化合物溶液还具有酸致变色性能和强的荧光性能,且溶液在580,nm处的吸收强度和在490,nm处的荧光强度随着对甲基苯磺酸的加入量呈现出规律性的线性变化,可应用在紫外线检测等领域.

3′,6′-Bis（N,N-diphenylamino）fluoran was synthesized from m-dihydroxybenzene and phthalic-anhydride.The structure was confirmed by FTIR,MS and 1H NMR.Thermochromism studies show that the color of the title compound changes from white to blue under heating and the onset temperature to change color is 110 ℃.Ab-sorption and fluorescence spectra exhibit that the solution of the title compound has acidichromic property and strong fluorescence.The absorption at 580 nm and the fluorescence intensity at 490 nm change linearly with the addition of p-toluenesulfonic acid,indicating the possible application to detect the ultraviolet rays.