DOI•
Generation and reactions of the borate radical — A flash photolysis study
01 Aug 1988-Vol. 100, Iss: 4, pp 297-303
TL;DR: The transient borate radical is produced by flash photolysis of an aqueous alkaline solution of NaBO2 and K2S2O8 and the absorption spectrum of this radical shows two maxima as mentioned in this paper.
Abstract: The borate radical is produced by the flash photolysis of an aqueous alkaline solution of NaBO2 and K2S2O8. The absorption spectrum of the transient borate radical shows two maxima. The self decay of this radical is second order. Rate constants for the reactions of this radical with some organic substrates have been determined.
References
More filters
Abstract: The polymeric ions B/sub 5/O/sub 6/(OH/sup -//sub 4/, B/sub 3/O/sub 3/(OH)/sup -//sub 4/, B/sub 4/O/sub 5/(OH)/sup 2 -//sub 4/, and B/sub 3/O/sub 3/F/sub 6//sup 3 -/ have been identified in solution and their regions of stability established. Comparisons of Raman spectra of the solutions with the spectra of solid reference materials containing the same structural entities, NaB/sub 5/O/sub 8/.5H/sub 2/O, orthorhombic metaboric acid (HBO/sub 2/)/sub 3/, Na/sub 2/B/sub 4/O/sub 7/.10H/sub 2/O, and Na/sub 3/B/sub 3/F/sub 6/O/sub 3/ were used to identify the ions. The charge on the polyborate ions was established on the basis of material and ionic balances. The hydrolytic behavior of Na/sub 3/B/sub 3/F/sub 6/O/sub 3/ was established. This compound is partially depolymerized into BF/sub 2/(OH)/sup -//sub 2/ ions which disproportionate into BF/sub 3/OH/sup -/, F/sup -/, and H/sub 3/BO/sub 3/. A new synthesis for Na/sub 3/B/sub 3/F/sub 6/O/sub 3/ was developed.
98 citations
91 citations
90 citations
TL;DR: In this article, aq − and OH with S 2 O 8 2− and HSO 5 − wurden pulsradiolytisch bestimmt, e.g., SO 4 − oxydiert OH − with k = 4,6 × 10 7 M −1 s −1.
57 citations
TL;DR: In this article, the experimental difficulties involved in the study of the infra-red spectra of aqueous solutions are discussed, and it is shown that spectra can be obtained in the near infra red, from 3·5 μ, to 5·8 μ and from 6·5μ to 10·5 µ regions.
45 citations