Cobalt ion pair macroscopic recognition by orthogonal interaction

A simple calix[4]arene dialkyne diester(C4DE) was designed and synthesized in high yield (80%). C4DE was clicked onto a microstructured Au surface, and showed selective macroscopic recognition of cobalt picrate by orthogonal interactions, detected via contact angle measurements. The proposed wettability sensing device displays good specificity, is fast and easy to use, and should be suitable for the rapid detection of cobalt ions in environmental monitoring.

Graphical abstractIn this paper, A simple calix[4]arene dialkyne diester (C4DE) is synthesized in a good yield of 80% and was modified on a Au surface via click chemistry to be a switchable wettability sensor for Co2+. We report the synthesis of a simple calix[4]arene dialkyne diester, which was successfully applied to a functional microstructured Au surface using a simple click reaction. The C4DE surface acts as a convenient and effective macroscopic sensor for orthogonal recognition of cobalt picrate [Co(pic)2].Figure optionsDownload full-size imageDownload as PowerPoint slide