Abstract
It has been shown that when a mixture of sodium 4-phenylbenzoate and 5% Pd/C preliminarily exposed to a molecular tritium atmosphere at 333 K for 25 min is treated with atomic protium, tritium is incorporated into sodium 4-phenylbenzoate molecules. The resulting molar radioactivity of this compound is as high as 0.8 ± 0.2 Ci/mmol, and the molar radioactivity of 4-cyclohexylbenzoic acid turns out to be fourto-five times higher than that of labeled sodium 4-phenylbenzoate. It has been suggested that the interaction of protium atoms with (3H+)(ē) clusters formed on the support surface upon tritium spillover can initiate isotope exchange and hydrogenation reactions.
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Original Russian Text © V.P. Shevchenko, G.A. Badun, I.A. Razzhivina, I.Yu. Nagaev, K.V. Shevchenko, N.F. Myasoedov, 2015, published in Doklady Akademii Nauk, 2015, Vol. 463, No. 4, pp. 678–683.
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Shevchenko, V.P., Badun, G.A., Razzhivina, I.A. et al. Efficiency of the isotope exchange between sodium 4-phenylbenzoate and tritium under different activation conditions. Dokl Phys Chem 463, 182–187 (2015). https://doi.org/10.1134/S0012501615080060
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DOI: https://doi.org/10.1134/S0012501615080060