10.6084/m9.figshare.5212576 Bosco Christin Maria Arputham Ashwin Bosco Christin Maria Arputham Ashwin Chokalingam Saravanan Chokalingam Saravanan Marimuthu Senthilkumaran Marimuthu Senthilkumaran Ragupathi Sumathi Ragupathi Sumathi Palanisamy Suresh Palanisamy Suresh Paulpandian Muthu Mareeswaran Paulpandian Muthu Mareeswaran Spectral and electrochemical investigation of <i>p</i>-sulfonatocalix[4]arene-stabilized vitamin E aggregation Taylor & Francis Group 2017 Supramolecular complex vitamin E p-sulfonatocalix[4]arene 2017-07-17 06:54:08 Journal contribution https://tandf.figshare.com/articles/journal_contribution/Spectral_and_electrochemical_investigation_of_i_p_i_-sulfonatocalix_4_arene-stabilized_vitamin_E_aggregation/5212576 <p>The host–guest interaction of α-tocopherol (vitamin E) with <i>p</i>-sulfonatocalix[4]arene (<i>p</i>-SC4) in solution state is studied using emission and cyclic voltammetric techniques. The lipid soluble α-tocopherol (α-T) forms a solid complex with <i>p</i>-SC4. FTIR and NMR spectral analysis of the solid complex reveals the tight packing of α-T inside the cavity of <i>p</i>-SC4. The structural deformation is confirmed by XRD analysis. SEM images differentiate the highly porous gel like structure of vitamin E aggregate and the solid structure of the host–guest complex prepared. NOESY spectra confirm the tight penetration of α-T within the hydrophobic cavity of <i>p</i>-SC4.</p>