J. D. Park

The Infrared Absorption Spectra of Cis‐ and Trans−1,2‐Dichlorohexafluorocyclobutane

The thermal dimerization of chlorotrifluoroethylene leads to 1,2‐dichlorohexafluorocyclobutane consisting mainly of the high boiling isomer. On the other hand, the photochemical or catalytic chlorination of hexafluorocyclobutene yields a dichloride consisting mainly of the low boiling isomer. These isomers may be readily separated by fractional distillation. Dielectric constant measurements permit one to indicate that the high boiling one is cis and the low boiling is the trans. The infrared spectra in the sodium chloride region were measured and compared with the existing data on the Raman spectra.