Mechanism of reduction of bis (2-hydroxyethyl) trisulfide by eaq-and. bul. CO2-. Spectrum and scavenging of RSS. bul. radicals

…, R Ahmad, R Yamdagni, DA Armstrong

Index: Wu, Zhennan; Back, Thomas G.; Ahmad, Rizwan; Yamdagni, Raghav; Armstrong, David A. Journal of Physical Chemistry, 1982 , vol. 86, # 22 p. 4417 - 4422

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Citation Number: 27

Abstract

Each of the reducing radicals e,;, CO;, and (CH3) &OH cleaves bis (Bhydroxyethy1) trisulfide in aqueous solution to produce (2-hydroxyethy1) perthiyl (RSS-) radicals and 2- hydroxyethanethiol. The RSS. radical had h,,= 374 nm, cmru= 1630 f 50 M-'cm-l, and a second-order rate constant for dimerization 2kI2=(1.4 f 0.3) x lo9 Ml sl (2RSS--RSIR (12)). It is able to abstract H atoms from dihydroflavin adenine dinucleotide (FH,), but not from ...