摘要
本文用可见吸收光谱、核磁共振谱、红外光谱等分析方法,研究了Nd、Eu与阳离子染料、酸性染料、活性染料及直接染料之间的相互作用。结果表明稀土与大多数染料之间没有形成稳定的配合物,在中性或酸性条件下与含磺酸基的染料之间只形成磺酸盐,与含羧酸基的染料之间形成羧酸盐。只有与酸性媒介染料之间形成稳定的配合物,其结构与铬及其配合物相似。
Interactions between neodymium, europium and acid dyes, eatiortic dyes, active dyes, and directive dyes have been studied by means of UV, NMR and IR spectrum measurements. The results show that the interaction pattern between rare-earth ions and dyes depends on the molecular structure of dyes. For most of dyes, such as cationic dyes, active dyes, directive dyes and some of acid dyes, coordination does not occur. It is possible to form complex between rare-earth ions and dyes like methyl red under certain conditions, but whether the azo group of the dye participates in the coordination stiU needs further studies. Mordant dyes, like Chrome Black AC, possessing strong coordination ability, can form complex with rare-earth ions as the mordant dyes do with Cr(Ⅲ).
出处
《应用化学》
CAS
CSCD
北大核心
1993年第2期38-41,共4页
Chinese Journal of Applied Chemistry
关键词
染料
钕
铕
相互作用
稀土族
dye, neodymium, europium, interaction
