In-situ electrochemical ESR the oxidation of triphenylacetic acid in acetonitrile
The oxidation of triphenylacetic acid in acetonitrile on platinum electrodes at + 1.94 V (vs. SCE) results in the formation of triphenylmethylcarbonium ions. If the potential is subsequently stepped to values negative of the Φ3C+/Φ3C· standard electrode potential (+0.25 V vs. SCE), reduction to the...
| Główni autorzy: | , , |
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| Format: | Journal article |
| Język: | English |
| Wydane: |
1986
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| _version_ | 1826290714490699776 |
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| author | Compton, R Coles, B Day, M |
| author_facet | Compton, R Coles, B Day, M |
| author_sort | Compton, R |
| collection | OXFORD |
| description | The oxidation of triphenylacetic acid in acetonitrile on platinum electrodes at + 1.94 V (vs. SCE) results in the formation of triphenylmethylcarbonium ions. If the potential is subsequently stepped to values negative of the Φ3C+/Φ3C· standard electrode potential (+0.25 V vs. SCE), reduction to the triphenylmethyl radical is seen. In rigorously anhydrous conditions no radicals other than Φ3C. can be detected by ESR. However in moist acetonitrile, oxidation at +1.94 V followed by reduction at -1.80 V results in complicated spectrum shown to be due to two radicals, namely the radical anions of benzoquinone and benzophenone. A mechanism to account for the formation of these is suggested. |
| first_indexed | 2024-03-07T02:48:25Z |
| format | Journal article |
| id | oxford-uuid:acd334c7-c421-4c9b-a3a6-1fa08a86e10b |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T02:48:25Z |
| publishDate | 1986 |
| record_format | dspace |
| spelling | oxford-uuid:acd334c7-c421-4c9b-a3a6-1fa08a86e10b2022-03-27T03:31:31ZIn-situ electrochemical ESR the oxidation of triphenylacetic acid in acetonitrileJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:acd334c7-c421-4c9b-a3a6-1fa08a86e10bEnglishSymplectic Elements at Oxford1986Compton, RColes, BDay, MThe oxidation of triphenylacetic acid in acetonitrile on platinum electrodes at + 1.94 V (vs. SCE) results in the formation of triphenylmethylcarbonium ions. If the potential is subsequently stepped to values negative of the Φ3C+/Φ3C· standard electrode potential (+0.25 V vs. SCE), reduction to the triphenylmethyl radical is seen. In rigorously anhydrous conditions no radicals other than Φ3C. can be detected by ESR. However in moist acetonitrile, oxidation at +1.94 V followed by reduction at -1.80 V results in complicated spectrum shown to be due to two radicals, namely the radical anions of benzoquinone and benzophenone. A mechanism to account for the formation of these is suggested. |
| spellingShingle | Compton, R Coles, B Day, M In-situ electrochemical ESR the oxidation of triphenylacetic acid in acetonitrile |
| title | In-situ electrochemical ESR the oxidation of triphenylacetic acid in acetonitrile |
| title_full | In-situ electrochemical ESR the oxidation of triphenylacetic acid in acetonitrile |
| title_fullStr | In-situ electrochemical ESR the oxidation of triphenylacetic acid in acetonitrile |
| title_full_unstemmed | In-situ electrochemical ESR the oxidation of triphenylacetic acid in acetonitrile |
| title_short | In-situ electrochemical ESR the oxidation of triphenylacetic acid in acetonitrile |
| title_sort | in situ electrochemical esr the oxidation of triphenylacetic acid in acetonitrile |
| work_keys_str_mv | AT comptonr insituelectrochemicalesrtheoxidationoftriphenylaceticacidinacetonitrile AT colesb insituelectrochemicalesrtheoxidationoftriphenylaceticacidinacetonitrile AT daym insituelectrochemicalesrtheoxidationoftriphenylaceticacidinacetonitrile |