Author： Manohar Thiruneelakandan Rajkumar Muthuraman Rajagopal Seenivasan
Publisher： Springer Publishing Company
ISSN： 0340-4285
Source： Transition Metal Chemistry, Vol.31, Iss.4, 2006-05, pp. : 549-555
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Abstract
The electron transfer reaction of Cr(VI) with organic sulfides is facilitated by added pyridine bases 2,2′-bipyridine, 1,10-phenanthroline, picolinic acid and pyridine 2,6-dicarboxylic acid. The added base forms a Cr(VI)-base adduct carrying positive charge which acts as a more reactive oxidant compared to Cr(VI). UV–Visible spectrophotometric study provides evidence for the formation of Cr(V) as the intermediate. The reactions in the absence and presence of pyridine bases follow the reactivity–selectivity principle.
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