Formation of high concentrations of BrO(2) in acidic bromate solutions |
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| Authors: | Alves Wagner A Côrtes Carlos E S Faria Roberto B |
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| Institution: | Departamento de Química Inorganica, Instituto de Química, Universidade Federal do Rio de Janeiro, PO Box 68563, Rio de Janeiro, RJ, 21945-970, Brazil. |
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| Abstract: | A new procedure to produce the BrO(2) transient species allowed time-resolved UV-vis spectra that show a structured band (lambda(max) = 502 nm) in dichloromethane to be obtained. In water, because of the increase of the dielectric constant, the lambda(max) presents a blue shift to 474 nm and the species decomposes much faster. The time-resolved spectra show evidence for its equilibrium with a nonidentified colorless form. This route opens new possibilities to the study this species in solution. |
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