Research
Photoelectron Spectroscopy
The main experimental tool we use in our lab is Photoelectron Spectroscopy (PES) of Transition Metal Suboxides. In particular we focus on transition metal oxide clusters. By using a combination of anion photoelectron spectroscopy and density functional theory (DFT) calculations we are able to explore the electronic and structural properties of these systems. A simplified… Read More
Resonant 2-photon Detachment
Resonant 2-photon Detachment (R2PD) of anions is a new addition to research in the CC Jarrold group. In these experiments, an electron in the anion ground state is excited by one photon, then detached by a second photon of the same energy (see figure to the right). We use a tunable laser for these experiments,… Read More
Anion Reactivity
Reactiviy of metal oxide anions Photocatalytic decomposition of water- We have observed evidence of H2 evolution resulting from reactions between water and group 6 transition metal suboxide clusters. In the case of W3Oy− clusters, the sequential cluster oxidation/H2 reduction reaction terminates at W3O6− + H2O → W3O7H2−. To complete the catalytic cycle, release of OH… Read More
Atmospheric Reaction Complex Anions
Oxidation of volatile organic compounds: We are building a photoelectron imaging experiment coupled with an ion gun/pulsed molecular beam valve for the production of adducts formed by the addition of hydroxyl radical to isoprene (and other VOCs). These anion adducts are stable precursors to reactive radical neutral complexes. The anion is often a closed shell… Read More
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