Synthesis of a Safranin T - p-Sulfonatocalix[4]arene Complex by Means of Supramolecular Complexation

摘要

The synthesis of water insoluble supramolecular complex is achieved from highly water soluble p-sulfonatocalix[4]arene (p- SC4) and Safranin T (ST). The analysis of the complex reveals the cavity packing of ST with p-SC4. The solution state studies also confirms the binding efficiency at lower concentrations. Electrochemical behavior of ST and p-SC4 explains the variation in redox potential upon binding. The ROESY and NOESY techniques reveals the spatial interaction of protons of p-SC4 with ST in solution and solid state respectively.