ORGANIC SONOELECTROCHEMISTRY - REDUCTION OF FLUORESCEIN IN THE PRESENCE OF 20 KHZ POWER ULTRASOUND - AN EC' REACTION
The electro-reduction of the dye fluorescein at mercury electrodes in basic aqueous solution is known to produce the stable semi-fluorescein radical. When the electrolysis is exposed to power ultrasound of intensity up to ca. 65 W cm-2 the radicals are shown to be re-oxidised by means of hydroxyl ra...
| Main Authors: | , , , , |
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| Format: | Journal article |
| Language: | English |
| Published: |
1995
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| Summary: | The electro-reduction of the dye fluorescein at mercury electrodes in basic aqueous solution is known to produce the stable semi-fluorescein radical. When the electrolysis is exposed to power ultrasound of intensity up to ca. 65 W cm-2 the radicals are shown to be re-oxidised by means of hydroxyl radicals formed through the sonochemical decomposition of the aqueous solvent. The electrode process adopts the mechanistic characteristics of a 'sono-EC′' or 'sono-catalytic' reaction and this constitutes, to the author's knowledge, the first ever mechanistic assignment of this type. |
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