Details
| Original language | English |
|---|---|
| Pages (from-to) | 15-27 |
| Number of pages | 13 |
| Journal | Chemico-biological interactions |
| Volume | 47 |
| Issue number | 1 |
| Publication status | Published - 15 Oct 1983 |
| Externally published | Yes |
Abstract
Product yields have been determined after one-electron-induced reduction of CCl4 in aqueous solutions containing t-butanol and various concentrations of oxygen. It was shown that ĊCl3 radicals add oxygen to form CCl3O2 • radicals, which eventually yield three chloride ions and CO2. A constant ratio of G(Cl-) G(CO2) = 4 is found in solutions containing 1.5 × 10-4 M or more oxygen. Competing reactions of the ĊCl3 radical increase this ratio at lower oxygen concentrations. The rate constant for the oxygen addition to ĊCl3 radicals was determined by pulse radiolysis to 3.3 × 109 M-1 s-1. Possible reaction mechanisms leading to the observed end products are discussed.
Keywords
- C ̇Cl + O rate constant, CClO reactions, CO and Cl formation, Reduction of CCl in O solutions
ASJC Scopus subject areas
- Pharmacology, Toxicology and Pharmaceutics(all)
- Toxicology
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In: Chemico-biological interactions, Vol. 47, No. 1, 15.10.1983, p. 15-27.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - One electron reduction of CCl4 in oxygenated aqueous solutions
T2 - A CCl3O2 •-free radical mediated formation of Cl- and CO2
AU - Mönig, J.
AU - Bahnemann, D.
AU - Asmus, K. D.
N1 - Copyright: Copyright 2018 Elsevier B.V., All rights reserved.
PY - 1983/10/15
Y1 - 1983/10/15
N2 - Product yields have been determined after one-electron-induced reduction of CCl4 in aqueous solutions containing t-butanol and various concentrations of oxygen. It was shown that ĊCl3 radicals add oxygen to form CCl3O2 • radicals, which eventually yield three chloride ions and CO2. A constant ratio of G(Cl-) G(CO2) = 4 is found in solutions containing 1.5 × 10-4 M or more oxygen. Competing reactions of the ĊCl3 radical increase this ratio at lower oxygen concentrations. The rate constant for the oxygen addition to ĊCl3 radicals was determined by pulse radiolysis to 3.3 × 109 M-1 s-1. Possible reaction mechanisms leading to the observed end products are discussed.
AB - Product yields have been determined after one-electron-induced reduction of CCl4 in aqueous solutions containing t-butanol and various concentrations of oxygen. It was shown that ĊCl3 radicals add oxygen to form CCl3O2 • radicals, which eventually yield three chloride ions and CO2. A constant ratio of G(Cl-) G(CO2) = 4 is found in solutions containing 1.5 × 10-4 M or more oxygen. Competing reactions of the ĊCl3 radical increase this ratio at lower oxygen concentrations. The rate constant for the oxygen addition to ĊCl3 radicals was determined by pulse radiolysis to 3.3 × 109 M-1 s-1. Possible reaction mechanisms leading to the observed end products are discussed.
KW - C ̇Cl + O rate constant
KW - CClO reactions
KW - CO and Cl formation
KW - Reduction of CCl in O solutions
UR - http://www.scopus.com/inward/record.url?scp=0020973241&partnerID=8YFLogxK
U2 - 10.1016/0009-2797(83)90144-8
DO - 10.1016/0009-2797(83)90144-8
M3 - Article
C2 - 6416690
AN - SCOPUS:0020973241
VL - 47
SP - 15
EP - 27
JO - Chemico-biological interactions
JF - Chemico-biological interactions
SN - 0009-2797
IS - 1
ER -