铕-芳香羧酸-丙烯腈三元配合物的合成及发光性能研究

以对甲基苯甲酸、大茴香酸、间氯苯甲酸、苯甲酸和对羟基苯甲酸为第一配体,丙烯腈为反应型配体,合成了五种新的铕-芳香羧酸-丙烯腈三元配合物.通过元素分析,EDTA配位滴定分析,热分析,红外、紫外和荧光光谱分析对目标配合物的组成、结构进行了表征,并研究了它们的发光性能.结果表明,五种新的反应型铕三元配合物均具有良好的发光性能,各芳香羧酸向铕离子传递光能的能力为:对甲基苯甲酸＞苯甲酸＞间氯苯甲酸＞对羟基苯甲酸＞大茴香酸,将这些含反应型配体丙烯腈的发光铕配合物引入高分子化合物中可望合成出键合型铕高分子发光材料.

Synthesis and Luminescence Properties of Ternary Complexes of Europium with Aromatic Carboxylic Acid and Acrylonitrile

Five ternary complexes were synthesized from europium with aromatic carboxylic acid(p-methylbenzoic acid,methoxybenzoic acid,m-chlorobenzoic acid and benzoic acid,p-hydroxylbenzoic acid) and acrylonitrile,and characterized by means of elemental analysis,thermal analysis,FTIR spectra and UV spectra.The fluorescence spectra show that five ternary complexes have good luminescence properties,and the sequence of the ability of the aromatic carboxylic acids to transfer light energy to europium ion is as follows: p-methylbenzoic acid>benzoic acid>m-chlorobenzoic acid>p-hydroxylbenzoic acid>methoxybenzoic acid.Meanwhile,the ternary europium complexes containing a reactive ligand acrylonitrile will possibly have a potential application to the fabrication of bonding-type europium polymer luminescent materials.