Colorimetric Sensing of Fluoride Ion by New Expanded Calix[4]pyrrole through Anion−π Interaction
作者:Sanjeev P. Mahanta、B. Sathish Kumar、Sambath Baskaran、Chinnappan Sivasankar、Pradeepta K. Panda
DOI:10.1021/ol203165x
日期:2012.1.20
Three new expanded calix[4]pyrroles were synthesized, where the two dialkylldipyrromethane units are linked via C–C double bonds. One of them, calix[2]bispyrrolylethene, colorimetrically senses fluoride ion only, owing to anion−π interaction in polar aprotic solvents.