Kinetics of deuterium isotope exchange between thiophenol or t-butylthiol and i-propylthiol |
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Authors: | A Wawer and I Wawer |
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Institution: | (1) Department of Chemistry, University of Warsaw, Zwirki i Wigury 101, 02-089 Warszawa, Poland |
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Abstract: | The rate constants and activation energies of bimolecular deuterium exchange in the systems: C5H5SD+i-C3H7SH and t-C4H9SD+i-C3H7SH in dilute C6H12 solutions have been established. The concerted H-transfer inside the cyclic dimer with two H-bonds formed in these systems is probably the rate-limiting step. The rate constant for H-transfer inside the cyclic dimer is independent of the acidic properties of the thiols.
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![acy](/content/w71122u12052h544/xxlarge1072.gif) C6H12. ![Scy](/content/w71122u12052h544/xxlarge1057.gif) ![ocy](/content/w71122u12052h544/xxlarge1086.gif) ![gcy](/content/w71122u12052h544/xxlarge1075.gif) ![lcy](/content/w71122u12052h544/xxlarge1083.gif) ![acy](/content/w71122u12052h544/xxlarge1072.gif) ![scy](/content/w71122u12052h544/xxlarge1089.gif) ![ocy](/content/w71122u12052h544/xxlarge1086.gif) ![vcy](/content/w71122u12052h544/xxlarge1074.gif) ![acy](/content/w71122u12052h544/xxlarge1072.gif) ![ncy](/content/w71122u12052h544/xxlarge1085.gif) ![ncy](/content/w71122u12052h544/xxlarge1085.gif) ![ycy](/content/w71122u12052h544/xxlarge1099.gif) ![pcy](/content/w71122u12052h544/xxlarge1087.gif) ![iecy](/content/w71122u12052h544/xxlarge1077.gif) ![rcy](/content/w71122u12052h544/xxlarge1088.gif) ![iecy](/content/w71122u12052h544/xxlarge1077.gif) ![ncy](/content/w71122u12052h544/xxlarge1085.gif) ![ocy](/content/w71122u12052h544/xxlarge1086.gif) 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