Knowledge Bank

Band oscillator strengths of the Schumann-Runge $(B3\Sigma u-,-X3\Sigma g-)$ absorption bands of $\mathrm{<mrow\; data-mjx-texclass="ORD">16</mrow>}O3,18O2$ and $\mathrm{<mrow\; data-mjx-texclass="ORD">16</mrow>}O18O$ have been theoretically determined and are compared to the Harvard-Smithsonian experimental values. A slight increase in the magnitude of the theoretical electronic transition moment results in satisfactory agreement between theory and experiment for all three species.