Reactions of Reducing and Oxidizing Radicals With Thiobenzamide: a Pulse Radiolysis Study

Photochemical synthesis of size-tailored hexagonal ZnS quantum dots

“…This is consistent with previous observations that reduction of thiourea analogs using pulsed radiolysis results in the formation of thiol species (R-SH) and thiol derivatives upon the formation of thiolate radicals (R-S ). 52,53 Likewise, the reduction of thiourea by hydrogen atoms (H ) generated by sonochemical means was found to promote the formation of H 2 S. 54 A proposed reaction sequence responsible for the formation of ZnS is shown in Scheme 2. It is possible that in the experimental conditions used for this study, ketyl radicals promoted the formation of S 2À species through a series of electron transfer reactions analogous to those described above.…”

“…It is possible that in the experimental conditions used for this study, ketyl radicals promoted the formation of S 2À species through a series of electron transfer reactions analogous to those described above. 9,52 The electron transfer process in eqn (1) should convert thiourea to a thiolate radical containing a carbanion center, which should be rapidly quenched by the acidic media created because of the oxidation of the isopropanol radical ((CH 3 ) 2 : C-OH -CH 3 COCH 3 + H + + e À ). The net result should be a thiol radical, R-S , and acetone (as represented in eqn (1)).…”

Effect of phenyl moiety on the formation of radicals and radical cations of thioamides in n-butyl chloride: a pulse radiolysis study

“…This observation also indicates that the radicals (as G radical is very high in n-butyl chloride systems and radicals are extremely oxygen-sensitive) 9,10 generated from solvent radiolysis is not responsible for the formation of transient species possessing absorption at 400 nm. Furthermore, in aqueous systems, [11][12][13] oxygen has been reported as an inactive molecule to three-electron bonded intermediate radicals, which were generated in • OH/SO 4…”