Substitution Effect, Absorption, and Fluorescence Behaviors of 11,12-Benzo-1,7,10,13-tetraoxa-4-aza- cyclopentadec-11-ene (Benzoaza-15-crown-5) Derivatives upon Cation Complexation in Solvent Extraction
作者:Mitsunobu Nakamura、Hideaki Yokono、Ken-ichi Tomita、Mikio Ouchi、Masamichi Miki、Reizo Dohno
DOI:10.1021/jo0107148
日期:2002.5.1
Substitution effect, absorption, and fluorescence behaviors of some benzoaza-15-crown-5 derivatives upon cation complexation in solvent extraction were studied. The introduction of a substituent on the nitrogen atom in benzoaza-15-crown-5 enhanced extractabilities in the solvent extraction of aqueous alkali metal picrates. The nondonating substituents raised the cation selectivity for Na(+) over K(+)
研究了一些苯并氮杂-15-冠-5衍生物在溶剂萃取中阳离子络合后的取代效应,吸收和荧光行为。在苯并氮杂-15-冠-5中氮原子上引入取代基增强了碱金属苦味酸盐水溶液的溶剂萃取中的可萃取性。非给体取代基提高了Na(+)相对于K(+)的阳离子选择性,但给体取代基降低了阳离子选择性。吸收和荧光光谱行为与碱金属阳离子不同。