caa a22 4500 44532838X CHVBK 20180317142729.0 cr unu---uuuuu 170323e20110401xx s 000 0 eng 10.1007/s10953-011-9676-4 doi (NATIONALLICENCE)springer-10.1007/s10953-011-9676-4 Micellization of Metallosurfactant N-Dodecyl/Hexadecyl/Octadecyl Salicylaldimine Cobalt(III) Complexes in Nonaqueous Media [Elektronische Daten] [S. Caleb Noble Chandar, D. Sangeetha, M. Arumugham] Abstract The critical micelle concentrations (CMC) of three metallosurfactant Schiff base cobalt(III) complexes of the type [Co(trien)(C19H30NO)]Cl2,[Co(trien) (C23H38NO)]Cl2 and [Co(trien)(C25H42NO)]Cl2, where trien = triethylenetetramine, have been studied in n-alcohol and in formamide at different temperatures by the electrical conductivity method. CMCs have also been measured as a function of percentage concentration of alcohol in the mixed solvents with formamide. Specific conductivity data (at 303-323K) served for the evaluation of the temperature-dependent CMC and thermodynamic parameters such as the standard Gibbs energy changes ($\Delta G^{\circ}_{\mathrm{mic}})$, enthalpy changes ($\Delta H^{\circ}_{\mathrm{mic}})$, and entropy changes ($\Delta S^{\circ}_{\mathrm{mic}})$ of micelle formation. It is suggested that addition of an alcohol leads to increased penetration of formamide into the micellar interface, the extent depending on the alcohol's chain length. The results have been discussed in terms of the solvophobic interaction, dielectric constant of the medium, the chain length of the alcohol, and the surfactant in the solvent mixture. Springer Science+Business Media, LLC, 2011 Cobalt(III) nationallicence CMC nationallicence Metallosurfactants nationallicence Micellization nationallicence Thermodynamics of micellization nationallicence Caleb Noble Chandar S. SAS, Chemistry Division, VIT University, 632 014, Vellore, Tamil Nadu, India aut Sangeetha D. SAS, Chemistry Division, VIT University, 632 014, Vellore, Tamil Nadu, India aut Arumugham M. Department of Chemistry, Muthurangam Government Arts College, 632 014, Vellore, Tamil Nadu, India aut Journal of Solution Chemistry Springer US; http://www.springer-ny.com 40/4(2011-04-01), 608-620 0095-9782 40:4<608 2011 40 10953 https://doi.org/10.1007/s10953-011-9676-4 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10953-011-9676-4 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Caleb Noble Chandar S. SAS, Chemistry Division, VIT University, 632 014, Vellore, Tamil Nadu, India aut NATIONALLICENCE 700 1- Sangeetha D. SAS, Chemistry Division, VIT University, 632 014, Vellore, Tamil Nadu, India aut NATIONALLICENCE 700 1- Arumugham M. Department of Chemistry, Muthurangam Government Arts College, 632 014, Vellore, Tamil Nadu, India aut NATIONALLICENCE 773 0- Journal of Solution Chemistry Springer US; http://www.springer-ny.com 40/4(2011-04-01), 608-620 0095-9782 40:4<608 2011 40 10953 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer