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Bromdioxid: Spektroskopische Eigenschaften des Radikals
Author(s) -
Bossy J. M.,
Leoni M. W.,
Bühler R. E.
Publication year - 1972
Publication title -
helvetica chimica acta
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.74
H-Index - 82
eISSN - 1522-2675
pISSN - 0018-019X
DOI - 10.1002/hlca.19720550115
Subject(s) - chemistry , radiolysis , flash photolysis , bromobenzene , photochemistry , solvent , oxygen , absorption (acoustics) , absorption spectroscopy , photodissociation , radical , absorption band , analytical chemistry (journal) , organic chemistry , reaction rate constant , kinetics , catalysis , physics , quantum mechanics , acoustics , optics
Pulse radiolysis of oxygen‐saturated bromobenzene yields a transient absorption with λ max = 480 nm at pulse end, which is identified as due to the BrO 2 ‐radical. To confirm this assignment the same radical was produced by flash photolysis of a Br 2 /O 2 ‐gas mixture and by chemical synthesis at low temperature. The absorption spectra of these BrO 2 ‐samples present a maximum between 480 and 380 nm dependent on the solvent. The influence of complex‐formation on this absorption band is discussed. The ESR.‐spectrum of chemically synthesized BrO 2 is given.