Theoretical Study on the Structures and Absorption Properties of Yellow Azomethine Dyes
作者:Seiji Ichijima、Hiroo Fukunaga、Hidetoshi Kobayashi、Makoto Ishihara、Nobuaki Koga
DOI:10.1246/bcsj.76.733
日期:2003.4
To examine the relationship between the structural features and the visible absorption spectra of yellow α-acylacetanilide azomethinedyes, we carried out measurements of the visible absorption spectra, X-ray crystal structure analyses, and density functional theory calculations for 2-benzoyl-2-[N-(4-diethylamino-2-methylphenyl)imino]-2′-chloroacetanilide (BA) and 2-[N-(4-diethylamino-2-methylphen
为了检查黄色 α-酰基乙酰苯胺偶氮甲碱染料的结构特征与可见吸收光谱之间的关系,我们对 2-苯甲酰基-2- 的可见吸收光谱进行了测量、X 射线晶体结构分析和密度泛函理论计算。 [N-(4-diethylamino-2-methylphenyl)imino]-2'-chloroacetanilide (BA) 和 2-[N-(4-diethylamino-2-methylphenyl)imino]-2-pivaloyl-2'-chloroacetanilide (PA) )。BA 显示可见吸收光谱,在绿色区域具有较高的摩尔消光系数和不需要的吸收曲线,而 PA 显示可见吸收光谱,在绿色区域具有较低的摩尔消光系数和锐切吸收曲线地区。BA 和 PA 具有一个共同的结构特征,即对氨基苯基片段与偶氮甲碱-氨基甲酰基 (–N=C–CONH–) 片段共面,产生发色团,但与酰基片段垂直。稳定结构主要受 π..