Scheffler, D., Grothe, H., Willner, H., Frenzel, A., & Zetzsch, C. (1997). Properties of Pure Nitryl Bromide. Thermal Behavior, UV/Vis and FTIR Spectra, and Photoisomerisation to trans-BrONO in an Argon Matrix. Inorganic Chemistry, 36(3), 335–338. https://doi.org/10.1021/ic9606946
E165-01-5 - Forschungsgruppe Physikalische Chemie von Aerosolpartikeln
-
Journal:
Inorganic Chemistry
-
ISSN:
0020-1669
-
Date (published):
1997
-
Number of Pages:
4
-
Publisher:
American Chemical Society
-
Peer reviewed:
Yes
-
Keywords:
Inorganic Chemistry; Physical and Theoretical Chemistry
-
Abstract:
BrNO₂ is produced by the heterogeneous reaction of ClNO₂, highly diluted in He, with an aqueous bromide solution and subsequent trapping at -155 °C. The crude product is purified by trap to trap condensation and fractional sublimation in vacuo. At 300 K and a pressure of 1 mbar, a half-life of about 1 h is observed. The decomposition produces Br₂ and NO₂. The UV/vis and IR absorption cross sections of gaseous BrNO₂ are determined in the ranges 185-600 nm and 2000-400 cm⁻¹, respectively. Irradiation of matrix-isolated BrNO₂ with visible light causes nearly quantitative isomerization to trans-BrONO, while ClNO₂ is converted by UV light into a mixture of cis- and trans-ClONO. It is possible to assign all fundamentals of BrNO₂ and trans-BrONO by comparison to the respective band position of the analogous molecules XNO₂ and XONO (X = Cl, F).
en
Research Areas:
Environmental Monitoring and Climate Adaptation: 100%