Fine tuning of receptor polarity for the development of selective naked eye anion receptor
摘要:
We designed and synthesized new anion receptors 1, 2, and 3, which have different N-H polarity. According to their N-H polarities, these receptors showed different selectivities for the anions they were interacting with. The difference of selectivity could be easily recognized from their color change during recognition events. Therefore, fine tuning of receptor polarity could be a good strategy for the designing of a selective anion receptor and made it possible to develop a selective naked eye anion receptor. (C) 2011 Elsevier Ltd. All rights reserved.
Novel receptors with quinoline and amide moieties for the biologically important ions
摘要:
New chromogenic anion receptors 2 and 4 utilizing quinoline and nitrophenyl groups as signaling groups were synthesized. In these receptors, amide and amine groups made strong multiple hydrogen interactions with anions. The receptors 2 and 4 bind anions with a selectivity of F- > CN- > CH3CO2- and proved to be an efficient naked-eye detector for the fluoride and cyanide ion. (C) 2010 Published by Elsevier Ltd.