稀土铕(Ⅲ)三元络合物的合成和光谱性能研究

Synthesis of 2-(2'-Hydroxylphenyl)benzothiazole derivatives and their fluorescent properties

以三氟乙酸、噻吩、苯乙酮为原料经过酯化、乙酰化和缩合反应合成了噻吩甲酰三氟丙酮和苯甲酰三氟丙酮 ,并以它们为配体 ,合成了四个铕 (Ⅲ )的三元络合物 ,通过元素分析表征了它们的结构。这些化合物在紫外光的激发下 ,固态和溶液都能产生强烈的红色荧光。给出它们的红外、紫外和荧光光谱数据 。

Trifluoro-1-phenyl-1,3-butanedione and thenoyltrifluoroacetophenone have been synthesized via the reactions of esterification, acetylation and condensation used trifluoroacetic acid, thiophene and acetophenone as starting materials. Four of their ternary Eu(Ⅲ) complexes have been synthesized. Their chemical formulas were identified by Element Analysis. They emit strong red fluorescence both in solution and in solid state under UV light. Their IR, UV and FL spectra were given, and the complexation and fluorescence porperties were discussed.