117489-73-3Relevant academic research and scientific papers
Synthesis and properties of chloryl chloride, ClClO2
Müller, Holger S. P.,Willner, Helge
, p. 2527 - 2534 (2008/10/08)
Halogen exchange between FClO2 and AlCl3, BCl3, or HCl afforded chloryl chloride, ClClO2, identified by IR and UV spectroscopy in noble gas matrices and in the gas phase. All six fundamental vibrations, as well as some over and combination tones of 12 isotopomers were detected for the novel chlorine oxide having Cs symmetry. Use of the product rule in the symmetry class A″ with vibrational frequencies of four independent isotopomers, in conjunction with experimental and ab initio results of related compounds, allowed the geometric parameters to be estimated (r(ClCl) = 222 ± 6 pm, r(ClO) = 144.0 ± 0.5 pm, ∠(ClClO) = 103.5 ± 1°, ∠(OClO) = 116.0 ± 0.5°) and a force field to be calculated. The UV spectrum shows two maxima at 231 and 296 nm with σ = 1.3 × 10-17 and 1.5 × 10-17 cm2 molecule-1, respectively. Photolysis of matrix-isolated ClClO2 resulted in the isomers ClOClO and ClOOCl. In the gas phase ClClO2 decomposes into ClO2 and chlorine, but it can also be formed by reacting Cl atoms with ClO2. At room temperature and partial and total pressure of 1 and 4 mbar, respectively, the half-life of ClClO2 is 1 min. The role of ClClO2 in stratospheric chemistry is discussed in relation to possible reaction schemes.
