Wenqi Duan

Mentor: Elizabeth McCormack

Probing the Energies of the Highest Vibrational Levels of the symbol 1 State of symbol 2

Resonantly-enhanced multi-photon ionization (REMPI) spectra through various rotational levels of the E,symbol 3g, v′ = 6 state are recorded by detecting ion production as a function of energy using a time of flight mass spectrometer. Term energies and rotational constants for high vibrational levels of the symbol 4 state of symbol 5 are measured and compared to previous experimental measurements and theoretical ab initio non-adiabatic calculations of the first six symbol 6  levels ofsymbol 7. Previously, term energies and rotational constants for the v = 67 − 69 vibrational levels were reported and we hope to extend this work by reporting on the v = 50 – 66 symbol 8. Taken in full, these measurements will impact efforts to produce a fully integrated theoretical treatment of dissociation and ionization in this energy region.


1Ekey R C, Cordova A E, Duan W, Chartrand A M and McCormack E F 2013 J. Phys. B: At. Mol. Opt. Phys. 46 235101