caa a22 4500 469109599 CHVBK 20180323133106.0 cr unu---uuuuu 170328e19920901xx s 000 0 eng 10.1007/BF02039926 doi (NATIONALLICENCE)springer-10.1007/BF02039926 Kinetics of chlorine isotope exchange reaction between sodium chloride-36 and triphenyltin chloride in mixed solvents [Elektronische Daten] [F. Elzawawy, E. Saad, I. Badr] The isotope exchange reaction between Na36Cl and triphenyltin chloride in dioxane-water (80∶20% w/w) and ethanol-water (90∶10% w/w) mixed solvents have been studied at 25°C, 35°C and 50°C. The exchange reaction was found to proceed via a bimolecular SN2, limiting mechanism with reaction rates depending on the solvent used. Inhibition of the exchange in ethanol-water is probably due to solvation of chloride ion through hydrogen bond formation. The rate laws for the exchange reactions are: Re=3.24·109 e−65,556/RT [Ph3SnCl]α[NaCl] in dioxane-water and Re=6.61·108 e−69,595/RT [Ph3SnCl]α[NaCl] in ethanol-water, where α is the degree of dissociation of NaCl and Re is the rate of exchange in mol l−1·s−1. The activation parameters ‡H*, ‡S* and ‡G* are reported. Akadémiai Kiadó, 1992 Elzawawy F. Chemistry Department, Faculty of Science, Ain Shams University, Abbassia, Cairo, (Egypt) aut Saad E. Chemistry Department, Faculty of Science, Ain Shams University, Abbassia, Cairo, (Egypt) aut Badr I. Chemistry Department, Faculty of Science, Ain Shams University, Abbassia, Cairo, (Egypt) aut Journal of Radioanalytical and Nuclear Chemistry Kluwer Academic Publishers 162/1(1992-09-01), 71-78 0236-5731 162:1<71 1992 162 10967 https://doi.org/10.1007/BF02039926 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF02039926 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Elzawawy F. Chemistry Department, Faculty of Science, Ain Shams University, Abbassia, Cairo, (Egypt) aut NATIONALLICENCE 700 1- Saad E. Chemistry Department, Faculty of Science, Ain Shams University, Abbassia, Cairo, (Egypt) aut NATIONALLICENCE 700 1- Badr I. Chemistry Department, Faculty of Science, Ain Shams University, Abbassia, Cairo, (Egypt) aut NATIONALLICENCE 773 0- Journal of Radioanalytical and Nuclear Chemistry Kluwer Academic Publishers 162/1(1992-09-01), 71-78 0236-5731 162:1<71 1992 162 10967 Metadata rights reserved Springer special CC-BY-NC licence nationallicence SWISSBIB 469109599 BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer