Abstract
The reaction between 1,3 dithiolane 2-thione or ethylene trithiocarbonate (ETTC) and pulse radiolytically generated OH . radicals have been investigated in aqueous solution. An absorption spectrum of the transient species with an absorption maximum at 390 nm was obtained. The spectrum was assigned to the radical cation ETTC .+ formed by the electron transfer reaction, as supported by transient conductivity measurements. The G-value of the radical cation was obtained as 4.2±0.2. The bimolecular formation rate constant of ETTC .+ was determined as 1.8±0.2 × 10 10 dm 3 mol -1 s -1 and its molar absorbance value at 390 nm was estimated to be 237 ± 20 m 2 mol -1. The second-order decay rate constant of ETTC .+ ( k = 6.5±0.9 × 10 8 dm 3 mol -1s -1) was attributed to the formation of a dimer dication (ETTC) 2+ 2, as confirmed by a final product analysis by gas chromatography.
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Schedule a callMore From: International Journal of Radiation Applications & Instrumentation. Part C, Radiation Physics & Chemistry
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