A pulse radiolysis study of the oxidation of Br− by Cl2˙− in aqueous solution: formation and properties of ClBr˙−

Literature Information

Publication Date 2002-04-11
DOI 10.1039/B110362H
Impact Factor 3.676
Authors

M. Kelm, A. V. Gordeev, E. Janata


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Abstract

The oxidation of Br− by Cl2˙− is investigated by pulse radiolysis in aqueous solutions of NaCl and NaBr. Depending on the ratio of the concentration of Br− to Cl−, the main product being observed is either Cl2˙−, ClBr˙− or Br2˙−. The mixed radical anion ClBr˙− exhibits a broad absorption band at 350 nm with ε350 = 9300 dm3 mol−1 cm−1. The rate constants of the equilibrium Cl2˙− + Br− ⇌ ClBr˙− + Cl− are determined to be kf = 4 × 109 and kb = 1.1 × 102 dm3 mol−1 s−1.

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Contents list

Front/Back Matter

DOI: 10.1039/C3GC90024J

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Physical Chemistry Chemical Physics

Physical Chemistry Chemical Physics
CiteScore: 5.5
Self-citation Rate: 10.3%
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Physical Chemistry Chemical Physics (PCCP) is an international journal co-owned by 19 physical chemistry and physics societies from around the world. This journal publishes original, cutting-edge research in physical chemistry, chemical physics and biophysical chemistry. To be suitable for publication in PCCP, articles must include significant innovation and/or insight into physical chemistry; this is the most important criterion that reviewers and Editors will judge against when evaluating submissions. The journal has a broad scope and welcomes contributions spanning experiment, theory, computation and data science. Topical coverage includes spectroscopy, dynamics, kinetics, statistical mechanics, thermodynamics, electrochemistry, catalysis, surface science, quantum mechanics, quantum computing and machine learning. Interdisciplinary research areas such as polymers and soft matter, materials, nanoscience, energy, surfaces/interfaces, and biophysical chemistry are welcomed if they demonstrate significant innovation and/or insight into physical chemistry. Joined experimental/theoretical studies are particularly appreciated when complementary and based on up-to-date approaches.

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