THE RADIATION-CHEMISTRY OF IODOPHENOLS

The technique of pulsed electron radiolysis has been used to determine absolute rate constants for the reaction of the hydrated electron, hy droxyl radical and hydrogen atom with ortho-, meta- and para-iodopheno l in aqueous solution. These rate constants have been used to establis h individual G-values for iodide production in the steady-state radiol ysis of 2-iodophenol in a variety of radical scavenger-additive system s. For 2-iodophenol, specific efficiencies for e((aq))(-),(OH)-O-. and H-. reaction were determined as 0.89 +/- 0.03, 0.27 +/- 0.03, and 0.9 7 +/- 0.07, respectively. These data are compared to the available lit erature results for other halophenols. Crown Copyright (C) 1998 Publis hed by Elsevier Science Ltd. All rights reserved.