caa a22 4500 445328207 CHVBK 20180317142728.0 cr unu---uuuuu 170323e20111001xx s 000 0 eng 10.1007/s10953-011-9742-y doi (NATIONALLICENCE)springer-10.1007/s10953-011-9742-y Studies on Thermodynamics of Micellization and Solvophobic Interactions of Novel Surfactant-Cr(III) Complexes in Non-aqueous Solvents [Elektronische Daten] [N. Kumaraguru, K. Santhakumar, S. Kalyanasundharam] The critical micelle concentration (CMC) of surfactant-Cr(III)-dodecylamine complexes of the type cis-α-[Cr(trien)(C12H25NH2)X]2+ (where trien = triethylenetetramine; X = F−, Cl−, Br−) has been studied in n-alcohol and in formamide at different temperatures, by electrical conductivity measurements. From the CMC values as a function of temperature, various thermodynamic properties have been evaluated: standard Gibbs energy changes (Δmic G 0), standard enthalpy changes (Δmic H 0) and standard entropy changes (Δmic S 0) for micellization. Critical micelle concentrations have also been measured as a function of the percentage composition of alcohol added. The solvent composition dependences of these thermodynamic parameters were determined. It is suggested that alcohol addition leads to an increase in formamide penetration into the micellar interface that depends on the alcohol's chain length. The results are discussed in terms of an increased hydrophobic effect, dielectric constant of the medium, the chain length of the alcohols, and the surfactant in the solvent mixture. Springer Science+Business Media, LLC, 2011 Critical micelle concentration nationallicence Micellization nationallicence Micelle nationallicence Metallosurfactants nationallicence Organic solvents nationallicence Thermodynamic properties nationallicence Kumaraguru N. Department of Chemistry, Government Arts College, 620 022, Tiruchirappalli, Tamil Nadu, India aut Santhakumar K. Chemistry Division, School of Science and Humanities, VIT University, 632 014, Vellore, Tamil Nadu, India aut Kalyanasundharam S. Department of Chemistry, Poompuhar College, 609 107, Melaiyur, Tamil Nadu, India aut Journal of Solution Chemistry Springer US; http://www.springer-ny.com 40/10(2011-10-01), 1673-1686 0095-9782 40:10<1673 2011 40 10953 https://doi.org/10.1007/s10953-011-9742-y text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10953-011-9742-y text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Kumaraguru N. Department of Chemistry, Government Arts College, 620 022, Tiruchirappalli, Tamil Nadu, India aut NATIONALLICENCE 700 1- Santhakumar K. Chemistry Division, School of Science and Humanities, VIT University, 632 014, Vellore, Tamil Nadu, India aut NATIONALLICENCE 700 1- Kalyanasundharam S. Department of Chemistry, Poompuhar College, 609 107, Melaiyur, Tamil Nadu, India aut NATIONALLICENCE 773 0- Journal of Solution Chemistry Springer US; http://www.springer-ny.com 40/10(2011-10-01), 1673-1686 0095-9782 40:10<1673 2011 40 10953 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer