Photoelectron Spectroscopy of Small Organic Anions Prepared Using a Novel Cold Ion Source Employing Entrainment of Charged Particles

<p>Negative ion photoelectron spectroscopy is utilized to investigate the methyl anions (CH₃<span style="font-size: 13px; line-height: 1.6em;">^\textendash\&nbsp;and CD₃</span>^{<span style="font-size: 11.111111640930176px; line-height: 1.6em;">\textendash</span>}<span style="font-size: 13px; line-height: 1.6em;">), the propadienylidene anion (H</span><sub style="line-height: 1.6em;">2</sub><span style="font-size: 13px; line-height: 1.6em;">CCC</span><sup style="line-height: 1.6em;">\textendash</sup><span style="font-size: 13px; line-height: 1.6em;">), and the propargylene anion (HCCCH</span><sup style="line-height: 1.6em;">\textendash</sup><span style="font-size: 13px; line-height: 1.6em;">) prepared\&nbsp;</span><span style="font-size: 13px; line-height: 1.6em;">using recently developed variations to the entrainment anion sources. Combining experiment and\&nbsp;</span><span style="font-size: 13px; line-height: 1.6em;">theory allows for further insight into the electronic and vibrational structures of these molecules.</span></p>