Details zur Publikation |
| Kategorie | Textpublikation |
| Referenztyp | Zeitschriften |
| DOI | 10.1080/10256019908234092 |
| Titel (primär) | Hydrogen isotope effects in electrochemical reductions of organic chlorocompounds |
| Autor | Wahren, M.; Kränke, P.; Möder, M.; Rummel, S.; Winkler, E. |
| Quelle | Isotopes in Environmental and Health Studies |
| Erscheinungsjahr | 1999 |
| Department | OESA; ANA |
| Band/Volume | 35 |
| Heft | 3 |
| Seite von | 167 |
| Seite bis | 182 |
| Sprache | englisch |
| Abstract | The kinetic hydrogen isotope effects in electrochemical reductions of CCl3COOD, CDCl2COOD, CCl4, CDCl3, benzyl chloride, 1-chloronaphthalene and 4-chlorobenzo-nitrile in deuterated reaction media were determined. The aliphatic chloro compounds are reduced with rather small isotope effects k(H)/k(D) = 1.2...1.7, as expected if anionic intermediates are formed and protonated. Benzyl chloride is reduced with an apparent k(H)/k(D) = 2.1, which is probably too high due to radical reactions. Aromatic chloro compounds are reduced with significant participation of a second mechanism via radical intermediates which abstract carbon-bound hydrogen atoms from the components of the reaction system. The resulting isotope effects are k(H)/k(D) = 1.2 for the part of the reduction which proceeds via anions and k(H)/k(D) similar to 2.5 for the competing radical reaction. |
| dauerhafte UFZ-Verlinkung | https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=8475 |
| Wahren, M., Kränke, P., Möder, M., Rummel, S., Winkler, E. (1999): Hydrogen isotope effects in electrochemical reductions of organic chlorocompounds Isot. Environ. Health Stud. 35 (3), 167 - 182 10.1080/10256019908234092 |
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