Infra-red absorption spectrum of gaseous chloryl fluoride (FC1O₂)

The infrared spectrum of gaseous chloryl fluoride has been investigated in the region between 2.5 and 25 μ at pressures from ca. 1 mm Hg to ca. 1 atm at room temperature. The strong bands located at 1265, 1104, 627 and 542 cm-1 have been assigned to four of the six fundamental vibrations expected for a pyramidal tetratomic molecule pertaining to the C8 point group. The other two bands could not be detected but they were tcnt,atively located at 405 and 349 cm-1. A correlation of the chloryl fluoride spectrum with spectra of related molecules and ions has been useful to the assignment of the bands.Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicada