67177-47-3Relevant articles and documents
Matrix-isolation infrared spectra of HOOBr and HOBrO produced upon VUV light irradiation of HBr/O2/Ne system
Akai, Nobuyuki,Wakamatsu, Daisuke,Yoshinobu, Takeo,Kawai, Akio,Shibuya, Kazuhiko
, p. 117 - 120 (2011/01/05)
Vacuum ultraviolet (VUV) light photolysis of an HBr/O2 mixture in a Ne matrix has produced HO2Br isomers (HOOBr and HOBrO), which are important reaction intermediates in atmospheric chemistry. The observed bands have been assigned with an aid of a quantum chemical calculation at CCSD/aug-cc-pVDZ. These assignments have been confirmed by the experimental results using isotopic species of 18O2 or DBr. Their characteristic bands are discussed in comparison with those of HOOCl and HOClO from an HCl/O2 mixture [7]. Both HOOBr and HOBrO are found to be photolyzed with the UV light below 385 nm.
A combined matrix isolation and ab initio study of bromine oxides
Galvez, Oscar,Zoermer, Anja,Loewenschuss, Aharon,Grothe, Hinrich
, p. 6472 - 6481 (2008/10/09)
Bromine oxides have been generated by passing a mixture of Br 2/O2/Ar through a microwave discharge. The products were stabilized at 6.5 K in an excess amount of argon. Infrared spectroscopy was used to analyze the species formed; experiments with enriched 18O 2 and ab initio calculations were carried out to assist in the assignment of the spectra. Besides the known species BrO, OBrO, and BrBrO, spectroscopic evidence for BrOBrO, BrBrO2, and a new isomer of Br2O3 is reported for the first time. Extensive comparisons are drawn between the present studies and previous experimental and theoretical works. The chemistry involved in the production of the observed compounds is discussed. The assignments are corroborated by the good correlation between observed and calculated band positions and intensities.
Bromine Superoxide: Generation and Photoisomerization into Bromine Dioxide
Maier, G.,Bothur, A.
, (2008/10/08)
Flash pyrolysis of a gas mixture containing bormine, oxygen and argon yields bromine superoxide, which can be identified IR- and UV-spectroscopically after trapping the pyrolysate at 12 K. Matrix irradiation transfers bromine superoxide into bromine dioxide. The backreaction can be induced by changing the wavelength. Even at room temperature a detectable amount of bromine superoxide is formed upon preparing a mixture of gaseous bromine, oxygen and argon.
