采用Pd/C催化水合肼还原法制备5-氨基-1,10-邻菲罗啉(APhen)配体,利用Eu(Ⅲ)与此配体和α-噻吩甲酰三氟丙酮(TTA)反应,制备新型三元红色荧光配合物Eu(TTA)3APhen.运用元素分析、FT-IR(傅立叶红外光谱)、1HNMR谱、X射线光电子能谱(XPS)测试和荧光光谱技术等对合成的配合物进行表征和分析.结果表明,配合物中Eu3+离子与TTA中的O及APhen中的N原子配位,配合物具有良好的荧光性质,在579、591、613和652 nm处的发射峰分别对应于5D0→7FJ(J=0,1,2,3)的电子跃迁,且以在613 nm处Eu3+的5D0→7F2电子跃迁所发出的荧光强度最大,是EuCl3的34.5倍.%The 5-amino-1,10-phenanthroline (APhen) was synthesized using Pd/C as catalyst and hydra?zine hydrate as reduetant by reduction method. A novel ternary fluorescent complex Eu(TTA)3APhen was syn?thesized by the reaction of APhen, 2-thenoyltrifluoroacetone (TTA) and Eu(Ⅲ). The complex was characterized by elemental analysis, FT-IR, 1HNMR, X-ray photoelectron spectroscopy (XPS) and fluorescence spectrosco?py. The results indicated that the Eu3+ ions of the complexes coordinated with O atoms of the TTA and N at?oms of the APhen, and the complex had excellent fluorescence property. The emission peaks at 579, 591, 613 and 652 nm of the complexes corresponded to the electron transition of 5D0→7FJ ( J=0,1,2,3). The emis?sion intensity of Eu3+ at 613 nm corresponded to 5D0→7F2 electron transition was maximum, which was 34.5 times of EuCl3.
展开▼
