Pulse Radiolysis of Penicillamine in Aqueous Solution: the Thiyl Radical and the Disulphide Radical Anion,
NATIONAL RESEARCH COUNCIL OF CANADA OTTAWA (ONTARIO)
Pagination or Media Count:
It has been shown that the thiyl radicals produced by pulse radiolysis of aqueous solutions of mercaptans combine with the sulphydryl anion to give a radical anion complex. RS radical RS- RSSR-. The same transient has been produced from disulphides by addition of solvated electrons RSSR e-aq goes to RSSR-. In both cases the thiyl radicals eventually combine to give disulphide RS radical RS radical goes to RSSR. The authors have investigated the transients produced by pulse radiolysis of penicillamine, HO2CCHNH2CCH32SH, in aqueous solutions and have observed both the RS radical and the RSSR- radical anion directly. Spectra were measured with a split light-beam system and are discussed here.
- Radiation and Nuclear Chemistry