摘要
本文设计合成了4个双臂2,4-二硝基苯腙衍生物作为F-和H2PO4-阴离子的比色法检测用探针主体,并得到其中一个主体的单晶结构。4种受体可以通过溶液颜色的变化选择性识别F-和H2PO4-。UV-Vis和1HNMR光谱研究表明受体与F-和H2PO4-的作用都形成氢键,与F-作用还伴随一个脱氢过程。
Four of two branched bis-2,4-dinitrophenylhydrazones were prepared as colorimetric anion receptors, which recognize F^- and H2PO4^- selectively in solution of DMSO through hydrogen binding. Single crystal of one of the compounds was obtained （CCDC： 298951）. The UV-Vis titration with F^- and H2PO4^- revealed that new intense absorption bands for all of receptors accompanied by dramatic color changes with the association constants in the range of 10^4-10^5 L·mol^-1. The UV-Vis and 1H NMR investigation indicated that the hydrogen bonds were formed between F^- or H2PO4^- and receptors, and there was also a deprotonation of binding fragment during the hydrogen bond formation in the case of F^-.
出处
《无机化学学报》
SCIE
CAS
CSCD
北大核心
2006年第5期817-822,共6页
Chinese Journal of Inorganic Chemistry
基金
国家自然科学基金资助项目(No.20571041)
关键词
比色法
探针
阴离子
colorimetric
sensor
anion
