摘要
本文设计合成了稀土铽配合物Tb(PMIP)3(PhCA)作为阴离子试剂,利用荧光光谱考察了其与F-、Cl-、Br-、I-、ClO4-、NO3-、AcO-和H2PO4-等阴离子的作用。研究结果表明:不同阴离子的加入能够调控Tb(PMIP)3(PhCA)的发光行为,当一定量的氟离子(醋酸根离子、磷酸二氢根离子)加入到Tb(PMIP)3(PhCA)的乙腈溶液中后,荧光发射增强;过量的氟离子(醋酸根离子、磷酸二氢根离子)加入后则使其荧光淬灭。而在乙腈和水混合溶液中,Tb(PMIP)3(PhCA)则能选择性识别氟离子和磷酸二氢根离子。
A terbium complex Tb（PMIP）3（PhCA） was synthesized and characterized. The recognition behavior of the complex toward various anions has been evaluated. Detailed emission spectral study reveals that the luminescent properties of the receptor depend on the anions added into the solution. When appropariate equivalents of fluoride （acetate or dihydrogen phosphate） anions were added into the CH3CN solution of Tb（PMIP）3（PhCA）, a fluorescence enhancement of the terbium complex was observed. After excessive equivalents of fluoride （acetate or dihydrogen phosphate） anions were added, the fluorescence quenching of the system was resulted. However, in the semi-aqueous solution, the terbium complex shows a remarkable selectivity of fluoride and dihydrogen phosphate anions over other anions.
出处
《无机化学学报》
SCIE
CAS
CSCD
北大核心
2008年第11期1816-1821,共6页
Chinese Journal of Inorganic Chemistry
基金
东华大学青年基金资助项目(No.105100044037)
关键词
荧光调控
氟离子
磷酸二氢根离子
铽配合物
luminescence modulation
fluoride anion
dihydrogen phosphate
terbium complex
