Spectral and electrochemical investigation of p-sulfonatocalix[4]arene-stabilized vitamin E aggregation

Bosco Christin Maria Arputham Ashwin, Chokalingam Saravanan, Marimuthu Senthilkumaran, Ragupathi Sumathi, Palanisamy Suresh & Paulpandian Muthu Mareeswaran
The host–guest interaction of α-tocopherol (vitamin E) with p-sulfonatocalix[4]arene (p-SC4) in solution state is studied using emission and cyclic voltammetric techniques. The lipid soluble α-tocopherol (α-T) forms a solid complex with p-SC4. FTIR and NMR spectral analysis of the solid complex reveals the tight packing of α-T inside the cavity of p-SC4. The structural deformation is confirmed by XRD analysis. SEM images differentiate the highly porous gel like structure of vitamin E aggregate and the...