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| Verfasst von: | Bernhard, Klaus [VerfasserIn]  |
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| | Geimer, Judith [VerfasserIn] |
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| | Canle-Lopez, Moises [VerfasserIn] |
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| | Reynisson, Johannes [VerfasserIn] |
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| | Beckert, Dieter [VerfasserIn] |
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| | Gleiter, Rolf [VerfasserIn] |
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| | Steenken, Steen [VerfasserIn] |
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| Titel: | Photo- and radiation-chemical formation and electrophilic and electron transfer reactivities of enolether radical cations in aqueous solution |
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| Verf.angabe: | Klaus Bernhard, Judith Geimer, Moises Canle-Lopez, Johannes Reynisson, Dieter Beckert, Rolf Gleiter, and Steen Steenken |
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| E-Jahr: | 2001 |
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| Jahr: | 30 October 2001 |
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| Umfang: | 11 S. |
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| Fussnoten: | Gesehen am 22.10.2020 |
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| Titel Quelle: | Enthalten in: Chemistry - a European journal |
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| Ort Quelle: | Weinheim : Wiley-VCH, 1995 |
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| Jahr Quelle: | 2001 |
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| Band/Heft Quelle: | 7(2001), 21, Seite 4640-4650 |
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| ISSN Quelle: | 1521-3765 |
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| Abstract: | In aqueous solution, enolether radical cations (EE.+) were generated by photoionization (?≤222 nm) or by electron transfer to radiation-chemically produced oxidizing radicals. Like other radical cations, the EE.+ exhibit electrophilic reactivity with respect to nucleophiles such as water or phosphate as well as electron transfer reactivity, for example, towards one-electron reductants such as phenols, amines, vitamins C and E, and guanine nucleosides. The reactivity of these electron donors with the radical cation of cis-1,2-dimethoxyethene.+ (DME.+) can be described by the Marcus equation with the reorganization energy ?=16.5 kcal?mol?1. By equilibrating DME.+ with the redox standard 1,2,4-trimethoxybenzene, the reduction potential of DME.+ is determined to be 1.08±0.02 V/NHE. The oxidizing power of the radical cation of 2,3-dihydrofuran, which can be considered a model for the enolether formed on strand breakage of DNA, is estimated to be in the range 1.27?1.44 V/NHE. |
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| DOI: | doi:10.1002/1521-3765(20011105)7:21<4640::AID-CHEM4640>3.0.CO;2-E |
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| URL: | Bitte beachten Sie: Dies ist ein Bibliographieeintrag. Ein Volltextzugriff für Mitglieder der Universität besteht hier nur, falls für die entsprechende Zeitschrift/den entsprechenden Sammelband ein Abonnement besteht oder es sich um einen OpenAccess-Titel handelt.
Volltext ; Verlag: https://doi.org/10.1002/1521-3765(20011105)7:21<4640::AID-CHEM4640>3.0.CO;2-E |
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| | Volltext: https://chemistry-europe.onlinelibrary.wiley.com/doi/10.1002/1521-3765%2820011105%297%3A21%3C4640%3A%3AAID-CHEM4640%3E3. ... |
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| | DOI: https://doi.org/10.1002/1521-3765(20011105)7:21<4640::AID-CHEM4640>3.0.CO;2-E |
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| Datenträger: | Online-Ressource |
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| Sprache: | eng |
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| Sach-SW: | density functional calculations |
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| | DNA |
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| | electron paramagnetic resonance |
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| | ionization potential |
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| | photoionization |
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| | redox potential |
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| K10plus-PPN: | 1736247409 |
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| Verknüpfungen: | → Zeitschrift |
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Photo- and radiation-chemical formation and electrophilic and electron transfer reactivities of enolether radical cations in aqueous solution / Bernhard, Klaus [VerfasserIn]; 30 October 2001 (Online-Ressource)
