Biphenyl macrolactams in anion complexation. Selective naked-eye fluoride recognition
作者:Ana M. Costero、M. José Bañuls、M. José Aurell、Michael D. Ward、Stephen Argent
DOI:10.1016/j.tet.2004.07.088
日期:2004.10
Two colorimetric anion sensors 1 and 2 allow for the selective differentiation of fluoride in the presence of other anions. Two different types of species have been observed in the complexation process, one of them is a co-ordination complex and the other is a salt generated by ligand deprotonation. The deprotonation reaction induces a conformational change, giving rise to a symmetrical species. This