摘要
介绍了一种新型黄酮冠醚（ＦＣ）的合成，并研究了这种冠醚与碱金属和碱土金属高氯酸盐发生配位作用时的吸收光谱和荧光光谱的变化，通过不同的处理方法求出了该冠醚与几种离子配位的稳定常数．
A new kind of flouroionophore flavonecrown ether(FC) 4 (dimethylamino) 3,6 (tetraethylene) flavone was synthesized and characterized. The photophysical changes upon complexation with alkali and alkaline earth metal cations can be described in terms of enchancement of the cation induced intramolecular charge transfer in the flavone owing to the direct interaction between the bound cations and the carbonyl group of the flavone. The magnitude of the photophysical changes is controlled by the size of crown and charge density of the bound cations. Based on the determination of the stability constants, the selectivity of flavonecrown ether is different from the regular crown ether. The results obtained were discussed preliminarily.
出处
《高等学校化学学报》
SCIE
EI
CAS
CSCD
北大核心
1998年第9期1431-1435,共5页
Chemical Journal of Chinese Universities
基金
国家自然科学基金
