Calix[4]amido crown functionalized visible sensors for cyanide and iodide anions.

ABSTRACT: This study comprises the design and development of calix[4] arene-amido-based ionophores by varying structural stringency and steric hindrance at the lower rim to probe the anion sensing properties. The ionophores are prepared, purified, and characterized using various analytical techniques. The molecular structure of the most active ionophore I is established by single-crystal X-ray characterisation. Out of various anions investigated, iodide and cyanide show the highest sensitivity towards the ionophores investigated. Both anions are sensitive enough to give a visibly distinct color change. The binding properties of the ionophores are established with ¹H & ¹²⁷I NMR, fluorescence, and UV-vis spectroscopy, revealing that three ionophores strongly interact with

SUBMITTER: Sharma PR 

PROVIDER: S-EPMC9037394 | biostudies-literature | 2021 Aug

REPOSITORIES: biostudies-literature