B.S. University of Central Florida Ph.D. University of North Carolina at Chapel Hill

Analytical Chemistry/Inorganic Chemistry/Organic Chemistry/Physical Chemistry/Biological Chemistry/Chemical Education/Computational/Theoretical Chemistry/Environmental/Atmospheric Chemistry/Materials Chemistry and Nanoscience

Research in the Douberly group employs infrared laser spectroscopy to study neutral and ionic molecular assemblies isolated in ultra-low temperature (0.4 Kelvin) helium nanodroplets.  Liquid helium droplets are formed by the condensation of gaseous helium in a cryogenic nozzle expansion.  The droplets are approximately 10 nm in diameter, and molecular assemblies are formed within each droplet by the sequential “pick up” of individual atoms or molecules.  The interaction between the molecular solute and the helium solvent is extremely weak due to the quantum nature of helium at 0.4 Kelvin.  As a result, helium droplets provide a unique environment to probe the structural and dynamical properties of the isolated species with a variety of emerging methods in high resolution laser spectroscopy.

25. Christopher P. Moradi and Gary E. Douberly “On the Stark Effect in Open Shell Complexes Exhibiting Partially Quenched Electronic Angular Momentum: Infrared Laser Stark Spectroscopy of OH-C2H2, OH-C2H4, and OH-H2O” Journal of Molecular Spectroscopy, (2015), 314, 54-62. PDF 24. Bernadette M. Broderick, Laura McCaslin, Christopher P. Moradi, John F. Stanton and Gary E. Douberly “Reactive Intermediates in 4He Nanodroplets: Infrared Laser Stark Spectroscopy of Dihydroxycarbene” Journal of Chemical Physics, (2015), 142, 144309. PDF 23. Gary E. Douberly, Paul L. Raston, Tao Liang and Mark D. Marshall, “Infrared Rovibrational Spectroscopy of OH–C2H2 in 4He nanodroplets: Parity Splitting due to Partially Quenched Electronic Angular Momentum” Journal of Chemical Physics, (2015), 142, 134306. PDF 22. Leavitt, C.M.; Moore, K.B.; Raston, P.L.; Agarwal, J.; Moody, G.H.; Shirley, C.C.; Schaefer, H.F.; Douberly, G.E. “Liquid Hot NAGMA Cooled to 0.4 Kelvin: Benchmark Thermochemistry of a Gas-Phase Peptide” Journal of Physical Chemistry A, (2014), 118, 9692-9700. PDF 21. Raston, P.L.; Douberly, G.E.; Jäger W. “Single and Double Resonance Spectroscopy of Methanol Embedded in Superfluid Helium Nanodroplets” Journal of Chemical Physics, (2014), 141, 044301. PDF 20. Leavitt, C.M.; Moradi, C.P.; Stanton, J.F.; Douberly, G.E., “Communication: Helium Nanodroplet Isolation and Rovibrational Spectroscopy of Hydroxymethlyene” Journal of Chemical Physics, (2014), 140, 171102. PDF 19. Raston, P.L.; Liang, T.; Douberly, G.E., “Observation of the Q(3/2) Λ-doublet transitions for X2Π3/2 OD in Helium Nanodroplets” Molecular Physics, (2014), 112, 301-303. PDF 18. Leavitt, C.M.; Moradi, C.P.; Acrey, B.W.; Douberly, G.E., “Infrared laser spectroscopy of the helium-solvated allyl and allyl peroxy radicals” Journal of Chemical Physics, (2013), 139, 234301. PDF 17. Liang, T.; Magers, D.B.; Raston, P.L.; Allen, W.D.; Douberly, G.E., “Dipole moment of the HOOO radical: Resolution of a structural enigma” Journal of Physical Chemistry Letters, (2013), 4, 3584-3589. PDF 16. Raston, P.L.; Douberly, G.E., “Rovibrational spectroscopy of formaldehyde in helium nanodroplets” Journal of Molecular Spectroscopy, (2013), 292, 15-19. PDF 15. Gomez, L.F.; Sliter, R.; Skvortsov, D.; Hoshina, H.; Douberly, G.E.; Vilesov, A.F., “Infrared spectra in the 3 um region of ethane and ethane clusters in He droplets” Journal of Physical Chemistry A, (2013), 117, 13648-13653. PDF 14. Moradi, C.P.; Morrison, A.M.; Klippenstein, S.J.; Goldsmith, C.F.; Douberly, G.E., “The propargyl + O2 reaction in helium droplets: entrance channel barrier or not?” Journal of Physical Chemistry A, (2013), 117, 13626-13635. PDF 13. Obi, E.I.; Leavitt, C.M.; Raston, P.L.; Moradi, C.P.; Flynn, S.D.; Vaghjiani, G.L.; Boatz, J.A.; Chambreau, S.D.; Douberly, G.E., “Helium Nanodroplet Isolation and Infrared Spectroscopy of the Isolated Ion- Pair 1-ethyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide” Journal of Physical Chemistry A, (2013), 117, 9047-9056. PDF 12. Raston, P.L.; Agarwal, J.; Turney, J.M.; Schaefer, III H.F.; Douberly, G.E., “The Ethyl radical in superfluid helium nanodroplets: Rovibrational spectroscopy and ab initio computations” Journal of Chemical Physics, (2013), 138, 194303. PDF 11. Raston, P.L.; Liang, T.; Douberly, G.E., “Infrared spectroscopy and tunneling dynamics of the vinyl radical in 4He Nanodroplets” Journal of Chemical Physics, (2013), 138, 174302. PDF 10. Raston, P.L.; Liang, T.; Douberly, G.E., “Anomalous Λ-doubling in the infrared spectrum of the hydroxyl radical in helium nanodroplets” Journal of Physical Chemistry A, (2013), 117, 8103-8110. PDF 9. Morrison, A.M.; Liang, T.; Douberly, G.E., “Automation of an ‘Aculight’ continuous-wave Optical Parametric Oscillator” Review of Scientific Instruments, (2013), 84, 013102. PDF 8. Liang, T.; Raston, P.L.; Douberly, G.E., “Helium nanodroplet isolation spectroscopy and ab initio calculations of HO3-(O2)n clusters” ChemPhysChem, (2013), 14, 764-770. PDF 7. Morrison, A.M.; Raston, P.L.; Douberly, G.E., “Rotational relaxation dynamics of the methyl radical in helium nanodroplets” Journal of Physical Chemistry A, (2013), 117, 11640-11647. PDF 6. Raston, P.L.; Liang, T.; Douberly, G.E., “Infrared spectroscopy of HOOO and DOOO in 4He nanodroplets” Journal of Chemical Physics, (2012), 137, 184302. PDF 5. Liang, T.; Douberly, G.E., “On the Al + HCN reaction in helium nanodroplets” Chemical Physics Letters, (2012), 551, 54-59. PDF 4. Morrison, A.M.; Agarwal, J.; Schaefer, III H.F.; Douberly, G.E., “Infrared laser spectroscopy of the CH3OO radical formed from the reaction of CH3 and O2 within a helium nanodroplet” Journal of Physical Chemistry A, (2012), 116, 5299-5304. PDF 3. Liang, T.; Flynn, S.D.; Morrison, A.M.; Douberly, G.E., “Quantum cascade laser spectroscopy and photo-induced chemistry of Al-(CO)n clusters in helium nanodroplets” Journal of Physical Chemistry A, (2011), 115, 7437-7447. PDF 2. Morrison, A.M.; Flynn, S.D.; Liang, T.; Douberly, G.E., “Infrared spectroscopy of (HCl)m(H2O)n clusters in helium nanodroplets: Definitive assignments in the HCl stretch region” Journal of Physical Chemistry A, (2010), 114, 8090-8098. PDF 1. Flynn, S.D.; Skvortsov D.; Morrison, A.M.; Liang, T.; Choi, M.Y.; Douberly, G.E.; Vilesov, A.F., “Infrared spectra of HCl-H2O clusters in helium nanodroplets” Journal of Physical Chemistry Letters, (2010), 1, 2233-2238. PDF