Herein, we synthesized a trimesoyl chloride–rhodamine derivative TR. TR exhibited metal ions complexation induced photophysical ‘turn-on’ signaling responses to Hg2+ and Fe3+.
The cholesterol appended hydroxybenzaldehyde derived Schiff bases1–4have been designed and synthesized. They are suitable for the naked-eye detection of metal ions such as Hg2+and Ag+using sol–gel methodology involving either rupturing or maintaining the imine bonds.