4,3-苯骈吖啶酮-1,8-萘酰亚胺新型分散染料的研究

以4-溴-1,8-萘酐为原料,经过亚酰胺化、缩合、闭环等步骤合成了一系列文题染料。用元素分析、红外、质谱等方法鉴定了其结构,并测定了其吸收光谱、荧光光谱、摩尔消光系数,荧光量子产率、Stokes位移等光物理性能和光化学稳定性。发现这类分散染料的可见吸收光谱和荧光光谱不具有一般萘酰亚胺荧光化合物所具有的镜影关系,其Stokes位移较小,荧光量子产率较高、且有较好的光稳定性。在实验时间范围内,其光褪色反应遵循一级反应的规律,且光褪色速度很小。

Study on 4, 3-Benzoacridone-1, 8-naphthalimide Disperse Dyes

A series of 4,3-benzoacridone-1,8-naphthalimide disperse dyes were synthesized with 4-Bromo-1,8-naphthalic anhydride as raw material, through halogenation, imidation, condensation and cyclization. Their structures were identified by elementary analysis,IR, MS and the other methods. Their UV absorption and fluorescence emission spectrum together with malor extinction coeffifients, fluorescence quanrum yields and Stockes' migrations were measured. Their photostability were determined in DMF solutions under light radiation. The results show that these dyes synthesized are quite stable to light and the photochemical reactions are regarded as first order reactions.