Knowledge Bank

The argon matrix Raman spectra of oxygen difluoride and oxygen-18 difluoride at $16\circ K$ have been observed; frequencies within $1cm-1$ of analogous infrared studies were measured. Laser photodetachment of fluorine atoms has provided significant yields of the OF and $\mathrm{<mrow\; data-mjx-texclass="ORD">18</mrow>}OF$ free radicals; the Raman observations confirm the earlier infrared work. Temperature cycling operations and depolarization ratio measurements provide aid in identifying new chemical species and making vibrational assignments.