Infrared and Raman Spectra of ClHCl− and BrHBr− Ions in CsCl·13H3OHCl2and CsBr·13H3OHBr2

Infrared and Raman spectra of CsCl·13H3OHCl2and CsBr·13H3OHBr2 have been measured in the 50–4000- cm−1 region. The spectra show the bands expected for the oxonium ion plus bands due to the XHX− ion. The XHX− ions are in a symmetrical environment, and a consistent interpretation of the spectra suggests that the XHX− ions have a centrosymmetric structure in these salts.