Solubilization of Ni Imidazole Complex in Micellar Media of Anionic Surfactants, Sodium Dodecyl Sulfate and Sodium Stearate

Journal of Surfactants and Detergents - Tập 20 Số 6 - Trang 1311-1320 - 2017
Nafisa Younas1, Muhammad A. Rashid1, Muhammad Usman2, Sadia Nazir3, Sadia Noor1, Abdul Basit1, Muhammad Jamil4
1Department of Chemistry, University of Agriculture, Faisalabad 38040, Pakistan
2Department of Chemistry, Government College University, Faisalabad 38000, Pakistan
3Department of Chemistry, Govt. College Women University, Faisalabad, Pakistan
4Department of Chemistry, Govt. Postgraduate College, Sahiwal, 57000, Pakistan

Tóm tắt

AbstractThe solubilization and physicochemical behavior of a coordination complex of nickel, namely [Ni(im)6]F2·5H2O [hexakis(imidazole)nickel(II) fluoride pentahydrate], in aqueous micellar media of anionic surfactants, i.e., sodium dodecyl sulfate (SDS) and sodium stearate (SS), were investigated by using UV–Vis spectroscopy and electrical conductivity measurements. Spectroscopic techniques were used for the computation of binding constant (Kb), partition coefficient (Kx), change in free energy of binding (ΔGb), and change in free energy of partition (ΔGp), whereas electrical conductivity data was helpful to calculate thermodynamic parameters of micellization of surfactants in the presence of the Ni complex, i.e., standard entropy of micellization (ΔSm), free energy (ΔGm), and enthalpy of micellization (ΔHm). It is evident from the results that solubilization of the Ni complex takes place because of electrostatic as well as hydrophobic interactions. The presence of the Ni complex in micellar media increases the critical micelle concentration of both surfactants owing to the structure‐breaking effect.

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Tài liệu tham khảo

10.1016/j.colsurfa.2012.10.006

10.1021/ja00783a006

10.1016/j.poly.2006.05.038

10.1016/j.poly.2011.05.009

10.1016/j.molstruc.2007.03.027

10.1016/j.jcis.2005.04.039

10.1016/j.ica.2004.02.013

10.1016/j.ica.2007.03.007

Zawartka W, 2016, Palladium complexes with chiral imidazole ligands as potential catalysts for asymmetric C‐C coupling reactions, Inorg Chim Acta

10.1016/j.ica.2013.09.047

10.1016/j.poly.2016.05.037

Dixon NE, 1980, Jack bean urease (EC 3.5. 1.5). III. The involvement of active‐site nickel ion in inhibition by β‐mercaptoethanol, phosphoramidate, and fluoride, Can J Biochem Cell B, 58, 481

10.1016/j.ica.2008.08.035

10.1016/j.tca.2013.08.014

10.3139/113.110425

10.1007/s007060050023

10.2298/JSC110121182N

10.1016/S0927-7757(98)00771-7

10.1016/j.jct.2012.11.022

10.1016/j.molliq.2015.06.018

10.1016/j.molliq.2014.03.038

10.1021/j100351a042

10.1002/9781118228920

10.1016/j.colsurfa.2005.11.071

Usman M, 2010, Thermodynamic properties of amphiphilic antidepressant drug citalopram HBr, J Chem Soc Pak, 32, 1

10.1016/j.jct.2008.03.001

10.1155/2014/540975

10.4067/S0717-97072009000200007

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Thông tin xuất bản

Journal of Surfactants and Detergents

Tập 20 Số 6

1311-1320

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