Abstract
Although the equilibrium structure of four-membered ring systems can be understood in terms of a balance between the ring-strain and torsional forces, the resulting conformation of fluorinated derivatives of cyclobutane is more difficult to quantify. For example, the introduction of a CF<sub>2</sub> group in cyclobutane reduces the barrier to planarity from 503 cm<sup>−1</sup> (<i>c</i>-C<sub>4</sub>H<sub>8</sub>) to 241 cm<sup>−1</sup> (<i>c</i>-C<sub>4</sub>H<sub>6</sub>F<sub>2</sub>). Since a similar reduction in barrier heights has also been reported for trimethylene oxide and 3,3-difluoroxetane, efforts have been initiated to understand these changes by considering variations in the torsional forces for fluorine-containing cyclic and open chain molecules. To complement our work in this area, the present vibrational study of Perfluorocyclobutanone (<i>c</i>-C<sub>4</sub>F<sub>6</sub>O) was undertaken in order to determine the skeletal structure of this molecule.
PDF Article
More Like This
Cited By
You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.
Contact your librarian or system administrator
or
Login to access Optica Member Subscription