摘要
在乙醇为溶剂的条件下,以8-羟基喹啉为pH值调节剂,制备出了稀土铕(Eu)与2,2-二羟甲基丙酸、1,10-邻菲咯啉的新型四元配合物。通过元素分析、红外光谱、^(13)C固相核磁共振谱对其进行了表征,其基本结构为Eu[CH_3C(CH_2OH)_2COO](NO_3)_2(phen)。配合物的荧光光谱分析结果表明,合成的配合物在600、625、663和705 nm处都出现了发射峰,分别与Eu^(3+)的~5D_0→~7F_1、~5D_0→~7F_2、~5D_0→~7F_3和~5D_0→~7F_4跃迁相对应。最强的发射峰625 mm位于叶绿素a、b吸收波段(600～680 nm),这对作物的生长很有利。
A new complex of 2,2-dihydroxymethyl propionic acid and 1,10-phenanthroline, Eu[ CH3C （CH2OH）2COO] （NO3）2 （phen）, was synthesized in ethanol with 8-hydroxyquinoline as a pH conditioner and characterized by elemental analysis, tR and solid-state ^13 C NMR. The thermal properties of the complex were different from those of ligant. The main fluorescence emission peak of the complex appeared at 600, 625,663, and 705 nm, corresponding to transitions from 5^D0→^7F1,5^D0→^7F2,5^D0→^7F3, and 5^D0→^7F4 energy levels of Eu^3＋, respectively. The most intense peak at 625 nm located in the range of absorption wavelength of chlorophyll a and b （600-680 nm）, and was thus beneficial to the crops.
出处
《中国塑料》
CAS
CSCD
北大核心
2006年第11期31-36,共6页
China Plastics
关键词
2
2-二羟甲基丙酸
铕配合物
稀土
荧光
2,2-dihydroxymethyl propionic acid
Europium complex
rare earth
fluorescence
