研究领域

Physical Chemistry

The Davis group uses laser and molecular beam methods to study the dynamics of elementary bimolecular and photochemical reactions. Reactions of interest involve organic and atmospheric free radicals, as well as transition metal atoms and simple transition metal complexes. Research We experimentally study the dynamics of chemical reactions relevant to catalysis, combustion, and atmospheric chemistry. Our research employs photolytic and pyrolytic techniques to generate molecular beams containing neutral transition metal atoms, complexes, free radicals, and aerosol particles. Reactions are initiated by crossing such beams with a second molecular beam under single collision conditions. The angular and velocity distributions of the reaction products from single bimolecular collisions are measured to learn about: 1) the branching ratios for competing reactions; 2) the reaction mechanism(s); and 3) the disposal of excess energy into the products' degrees of freedom.

近期论文

查看导师最新文章 （温馨提示：请注意重名现象，建议点开原文通过作者单位确认）

Daniel R. Albert, Michael A. Todt, and H. Floyd Davis, “ Crossed Molecular Beam Studies of Phenyl Radical Reactions with Propene and 2-Butene.” Abstract Michael A. Todt, Daniel R. Albert, and H. Floyd Davis, “High Intensity VUV and XUV Generation by Noncollinear Phasematching in Laser Vaporized Media”. Abstract Daniel R. Albert and H. Floyd Davis, “Experimental Studies of Bimolecular Reaction Dynamics Using Pulsed Tabletop Vacuum Ultraviolet Photoionization Detection”, invited perspective article, Phys. Chem. Chem. Phys. 2013 PDF* Daniel R. Albert, David L. Proctor, and H. Floyd Davis, “High-Intensity Coherent Vacuum Ultraviolet Source Using Unfocussed Commercial Dye Lasers”, Rev. Sci Instrum. 2013 Abstract, PDF* Daniel R. Albert, Michael Todt, and H. Floyd Davis, “A Low-Cost Quantitative Absorption Spectrophotometer for High School Students”, J. Chem. Ed. 89, 1432 (2012) Abstract, PDF* , Supporting Info PDF* M. Oana, Y. Nakatsuka, D. Albert, and H.F. Davis, “Photodissociation Dynamics of Gaseous CpCo(CO)2 and Ligand Exchange Reactions of CpCoH2 with C3H6, C3H4 and NH3”, J. Phys. Chem. A. 116, 5039 (2012). Abstract PDF* J.J. Schroden, and H. F. Davis, “Reactions of Neutral, Gas-Phase Yttrium Atoms with Two Cyclohexadiene Isomers”, J. Phys. Chem. A. 116, 3508 (2012). Abstract, PDF* A Study of the Electronically Metastable Products from 130 nm N2O Photodissociation Using Unfocussed Lasers for VUV Generation, Martha Beckwith, David L. Proctor, and H. Floyd Davis, J. Chem. Phys., Abstract , PDF* Collision Complex Lifetimes in the Reaction C6H5 + O2 → C6H5O + O, Daniel R. Albert and H. Floyd Davis J. Phys. Chem. Lett. 1, 1107 (2010). Abstract, PDF* Improved piezoelectric actuators for use in high-speed pulsed valves, D.L. Proctor, D.R. Albert and H. Floyd Davis, Rev. Sci. Instrum. 81, 023106 (2010). Abstract, PDF* Vibrational vs. Translational Energy in Promoting a Prototype Metal-Hydrocarbon Insertion Reaction , D. L. Proctor and H. F. Davis, Proc. Nat. Acad. Sci. Am. 105, 12673 (2008). Abstract PDF* Poster (pdf) Poster (ppt) C-C vs. C-H Bond Activation of Alkynes by Early Second-Row Transition Metal Atoms, R.Z. Hinrichs, J. J. Schroden, and H.F. Davis, J. Phys. Chem. A. 112, 3010 (2008). PDF* Experimental and Theoretical Studies of the Reactions of Y + H2CO and Y + CH3CHO, J.J. Schroden, H.F. Davis, and C.A. Bayse, J. Phys. Chem. A. 111, 11421 (2007), PDF* Reactive Quenching of OH (A) + D2 Studied Using Crossed Molecular Beams, Mariví Ortiz-Suárez, Mark F. Witinski, and H. Floyd Davis, J. Chem. Phys. 124, 201106 (2006) PDF* Reaction Dynamics of CN + O2 → NCO + O(3P2), Mark F. Witinski, Mariví Ortiz-Suárez, and H. Floyd Davis, J. Chem. Phys., 124, 094307 (2006) PD Photodissociation Dynamics of N2O at 130 nm: The 3N2 + O(3P0,1,2) Channels, M.F. Witinski, M. Ortiz-Suarez, and H. Floyd Davis, J. Chem. Phys. 122, 174303 (2005) PDF* Crossed Beams Study of the Reaction 1CH2 + C2H2 -> C3H3 + H, H. F. Davis, J. Shu, D.S. Peterka, and M. Ahmed, J. Chem. Phys. 121, 6254 (2004). PDF* Competition between C-C versus C-H Activation in Reactions of Neutral Yttrium Atoms with four Butene Isomers, J.J. Schroden, C.C. Wang, and H.F. Davis, J. Phys. Chem. A., 107, 9295 (2003) PDF* Competition between C-C versus C-H Activation in Reactions of Neutral Yttrium Atoms with Cyclopropane and Propene, R.Z. Hinrichs, J.J. Schroden, and H.F. Davis, J. Phys. Chem. A. 107, 9284 (2003). PDF* Oxygen Atom Rydberg Time-of-Flight spectroscopy- ORTOF, C. Lin, M.F. Witinski, and H. Floyd Davis, J. Chem. Phys., 119, 251 (2003). PDF*.