Publications

Publications from Cornell University (newest are listed first):

Unravelling the Primary Photochemistry of Pyruvic Acid: Direct Observation of Three Competing Channels, L.J. Sauer and H. Floyd Davis, J. Phys. Chem. Lett., 2025, 16 3721 https://pubs.acs.org/doi/10.1021/acs.jpclett.5c00323 .Publications Pyruvic Abstract

Photodissociation Dynamics of the Simplest Diazirine: CH2N2 -> CH2 + N2, S. Datta and H. Floyd Davis, J. Phys. Chem. A., J. Phys. Chem. A., 2025, xx, xx    https://pubs.acs.org/doi/10.1021/acs.jpca.5c00801.    jp-2025-00801n revised manuscript Final

Ethylcarbene versus Direct Propene Formation in the Near-UV Photodissociation of Ethylketene, S. Datta, H. F. Davis, J. Phys. Chem. A. 127, 450 (2023).  https://pubs.acs.org/doi/10.1021/acs.jpca.2c06457

Competition between I + O2 and OI + O Production from Visible Photolysis of OIO Radicals https://davis.chem.cornell.edu/files/2025/02/OIO-Abstract.pdf

Site-Specific Carbon-Carbon Bond Fission in Photoexcited Propyl Radicals Leads to Isomer-Selective Carbene and Radical Products, J. Phys. Chem. Lett., 49, 11926 (2021).   https://pubs.acs.org/doi/abs/10.1021/acs.jpclett.1c03324

Dimethylcarbene vs. Direct Propene Formation in Dimethylketene Photodissociation, Datta and H.F. Davis, J. Phys. Chem. A 2021, published Aug 9, 2021    acs.jpca.1c03641

Direct Observation of Ethylidene (CH3CH), the Elusive High-Energy Isomer of Ethylene. S. Datta and H.F. Davis, J. Phys. Chem. Lett. 11, 10476-10481 (2020)ethylidene acs.jpclett.0c03282

Subpicosecond HI Elimination in the 266 nm Photodissociation of Branched Iodoalkanes. M.A. Todt, S. Datta, A. Rose, K. Leung, and H. F. Davis, Chem. Phys. Phys. Chem. 22, 27338-27347 (2020).HI paper c9cp06460e

High Intensity vacuum ultraviolet and extreme ultraviolet production by noncollinear mixing in laser vaporized media, M.A. Todt, D.R. Albert and H. F. Davis, Rev. Sci. Instrum., 87, 063106 (2016).58-27p0ak3

Crossed Molecular Beam Studies of Phenyl Radical Reactions with Propene and 2-Butene, D.R. Albert, M. A. Todt, and H.F. Davis, J. Phys. Chem. A 117, 13967-13975 (2013)59-2lqovl3

Experimental Studies of Bimolecular Reaction Dynamics Using Pulsed Tabletop Vacuum Ultraviolet Photoionization Detection, invited perspective article, Phys. Chem. Chem. Phys. 15, 14566-14580 (2013).57-18nbly4

High-Intensity Coherent Vacuum Ultraviolet Source Using Unfocussed Commercial Dye Lasers, D.R. Albert, D.L. Proctor, and H.F. Davis, Rev. Sci Instrum. 84, 063104 (2013).56-1mtzz1l

Photodissociation of C5H5Co(CO)2 and Ligand Exchange Reactions of C5H5CoH2 with C3H6, C3H4 and NH3 M. Oana, D. Albert, and H.F. Davis, J. Phys. Chem. A. 116, 5039 (2012).54-p1vv5u

A Low-Cost Quantitative Absorption Spectrophotometer for High School Students, Daniel R. Albert, Michael Todt, and H. Floyd Davis, J. Chem. Ed. 89, 1432 (2012). 55-162xt6c Supplementary file can also be downloaded here.55supp-2cih6ac

Reactions of Neutral, Gas-Phase Yttrium Atoms with Two Cyclohexadiene Isomers, J.J. Schroden and H. F. Davis, J. Phys. Chem. A. 116, 3508 (2012).53-22h3gr4

Collision Complex Lifetimes in the Reaction C6H5 + O2 → C6H5O + O, Daniel R. Albert and H. Floyd Davis J. Phys. Chem. Lett. 1, 1107 (2010). 51-28id1ym

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).50-2kw3q2k

Vibrational vs. Translational Energy in Promoting a Prototype Metal-Hydrocarbon InsertionReaction ,D. L. Proctor and H. F. Davis, Proc. Nat. Acad. Sci. Am. 105, 12673 (2008).49-134nk3z

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).48-sttial

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).47-1rvi33e

Reactive Quenching of OH (A)  + D2Studied Using Crossed Molecular Beams, Mariví Ortiz-Suárez, Mark F. Witinski, and H. Floyd Davis, J. Chem. Phys. 124, 201106 (2006).46-221ccs9

Reaction Dynamics of CN + O2→ NCO + O(3P2), Mark F. Witinski, Mariví Ortiz-Suárez, and H. Floyd Davis, J. Chem. Phys.124, 094307 (2006). 45-2lcsi2w

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).44-29gj1ee

Crossed Beams Study of the Reaction1CH2 + C2H2 -> C3H3 + H, H. F. Davis, J. Shu, D.S. Peterka, and M. Ahmed, J. Chem. Phys. 121, 6254 (2004).43-1mqqhnp

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).42-17xky2b

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).41-pska80

Oxygen Atom Rydberg Time-of-Flight spectroscopy- ORTOF, C. Lin, M.F. Witinski, and H. Floyd Davis, J. Chem. Phys., 119, 251 (2003).40-16751qm

Competition between C-C and C-H Insertion in Prototype Transition Metal-Hydrocarbon Reactions, R.Z. Hinrichs, J. J. Schroden, and H.F. Davis, J. Am. Chem. Soc., 125, 861 (2003).39-11qladf

Details of the Potential Energy Surface for the Reaction Y + H2CCO: A Crossed Beams Study, J. Schroden M. teo, and H.F. Davis, J. Phys. Chem. A. 106, 11695 (2002).38-u7niwi

Dynamics of CO Elimination from Reactions of Yttrium Atoms with Formaldehyde, Acetaldehyde, and Acetone, J.J. Schroden, M. Teo, and H.F. Davis, J. Chem. Phys. 117, 9258 (2002).37-1t9bxk2

Vibrationally Inelastic Scattering of High-n Rydberg H atoms from Nand O2. B. Strazisar, C. Lin and H.F. Davis, Phys. Rev. Lett. 86, 3997 (2001).36-20n9wjz

Mode Specific Energy Disposal in the 4-atom reaction OH + D2 -> HOD + D. B. Strazisar, C. Lin and H.F. Davis, Science 290, 958 (2000).35-2iaw94d

Dynamics of Elementary Chemical Reactions, H.F. Davis and H.U. Stauffer, Encyclopedia of Physical Science and Technology, Academic Press, 2000.

Dynamics of Y + H2CO Reactions, H. U. Stauffer, R.Z. Hinrichs, J. Schroden, and H. F. Davis, J. Chem. Phys., 111, 10758 (1999).33-1gwujby

Dynamics of H2 and C2HProduction from Y + C2HReactions, H.U. Stauffer, R.Z. Hinrichs, J. Schroden and H. F. Davis, J. Phys. Chem., 104, 1107 (2000).32-1dr8aml

Crossed Beams Study of Mo (a7S3) and Mo(a5S2) collisions with CH4 and C2H6, R.Z. Hinrichs, P.A.Willis, H.U. Stauffer, J.J. Schroden, and H. F. Davis, J. Chem. Phys. 112, 4634 (2000).31-xa50jg 

Competing Reaction Pathways from Y + C2H2 Collisions, Stauffer, H.U., Hinrichs, R.Z., Willis, P.A., Davis, H.F., J. Chem. Phys. 111, 4101 (1999).

Rotatable Source Crossed Molecular Beams Apparatus with Pulsed VUV hotoionization Detection, Willis, P.A.; Hinrichs, R.Z; Stauffer H.U.; Davis, H.F., Review of Scientific Instruments 70, 2606 (1999). PDF*Abstract  

The Reaction Dynamics of Zr and Nb with Ethylene, Willis, P.A.; Stauffer, H.U.,  Hinrichs, R.Z.; Davis, H.F., J. Phys. Chem. A 103, 3706 (1999).

Excited State Dynamics of H2CN Radicals,  Bernard, E., Strazisar, B, Davis, H.F., Chem. Phys. Lett. 313, 461 (1999).

Transition Metal Chemistry in Crossed Molecular Beams, Willis, P.A., Hinrichs, R.Z., Stauffer, H.U., Davis, H.F., in Laser Techniques in State-Selected and State-to-State Chemistry IV, SPIE Conference Proceedings 3271 (1998). PDF*Abstract.

Crossed beams study of C-H  bond activation: Mo(5S2) + CH-> MoCH2 + H2, Willis, P.A., Hinrichs, R.Z., Stauffer, H.U., Davis, H.F.,  J. Chem. Phys., 108, 2665 (1998).

* The above articles are subject to copyright by ACS, AIP, or SPIE and are made available for your personal noncommercial scientific use only.  By accessing these PDF files, you agree that you will not further disseminate or copy the paper.

From Work Elsewhere:

Photodissociation Dynamics of OClO.  H.F. Davis and Y.T. Lee,  J. Chem. Phys. 105, 8142 (1996).

NO3 Photolysis Product Channels: Quantum Yields From Observed Energy Thresholds, H.S. Johnston,  H.F. Davis, and Y.T. Lee, J. Phys. Chem. 100, 4713 (1996).

Photodissociation of ClO Radicals at 248 nm. H.F. Davis and Y.T. Lee, J. Phys. Chem. 100, 30 (1996).

he Density of Reactive Levels in NO2 Unimolecular Decomposition. S.I. Ionov,  H.F. Davis, K. Mikhaylichenko, L. Valachovic, R.A. Beaudet and C. Wittig.,  J. Chem. Phys. 101, 4809 (1994).

Picosecond Resolution Measurements of NO3 Unimolecular Decomposition: the NO + O2 Channel.  H.F. Davis, P.I. Ionov, S.I. Ionov, and C. Wittig, Chem. Phys. Lett. 215, 214 (1993).

State Specific Reactions of Ba (1S0) and Ba (1D2) with Water and Methanol. H.F. Davis, A.G. Suits, Y.T. Lee, C. Alcaraz and J.M. Mestdagh, J. Chem. Phys.98, 9595 (1993).

The Dissociation Energy and Photochemistry of NO3.  H.F. Davis, B. Kim, H.S. Johnston, and Y.T. Lee, J. Phys. Chem. 97, 2172 (1993).

Reactions of Barium Atoms with Triatomic Oxidants:  Ba + NO2.  H.F. Davis,  A.G. Suits, and Y.T. Lee, J. Chem. Phys. 96, 6710 (1992).

Dynamics and Mode Specificity in OClO Photodissociation.  H.F. Davis andY.T. Lee, J. Phys. Chem. 96, 5681 (1992).

Reaction Dynamics of Ground State and Electronically Excited Barium Atoms.   H.F. Davis, A.G. Suits, and Y.T. Lee, in Gas Phase Metal Reactions, A. Fontijn,ed., Elsevier, Amsterdam (1992).

The Reaction of Sodium Atoms with O3.  M.H. Covinsky, A.G. Suits, H.F. Davis, and Y.T. Lee, J. Chem. Phys. 97, 2515 (1992).

Reaction Geometry from Orbital Alignment Dependence of Ion Pair Production in Crossed Beam Ba(1P) + Br2 Reactions.  A.G. Suits, H. Hou, H.F. Davis, and Y.T. Lee, and J.M. Mestdagh, J. Chem. Phys. 95, 8178 (1992).

Reaction Dynamics from Orbital Alignment Dependence and Angular Distributions of Ions Produced in Collision of Ba(1P) with NO2 and O3 A.G. Suits, H. Hou,  H.F. Davis, and Y.T. Lee, J. Chem. Phys. 96, 2777 (1992).

Dynamics of Ba-Br2Chemiionization Reactions.  A.G. Suits, H. Hou, H. F. Davis, and Y.T. Lee, J. Phys. Chem. 95, 8207 (1992).

Reactions of Ba Atoms with NO2, O3, and Cl2: Dynamic Consequences of the Divalent Nature of Barium, H.F. Davis, A.G. Suits, Hongtao Hou, and Y.T. Lee, Ber. Bunsenges. Phys. Chem. 94, 1193 (1990).  

Photofragment Spectroscopy of Metal Carbonyls: A Molecular Beam Study of Fe(CO)5 Photolysis at 193 nm, I.M. Waller, H.F. Davis, and J.W. Hepburn, J. Phys. Chem. 91, 506 (1987).

Experiments inPhotofragmentation Dynamics Using Coherent VUV for Product Detection, I.M. Waller, H.F. Davis, and J.W. Hepburn, in Short Wavelength Coherent Radiation: Generation and Applications, D.T. Attwood, and J. Boker,eds. (1986).

An ESR Study of Free Radical ProtonationEquilibria in Strongly Acid Media. H.F. Davis, H.J. McManus, Richard W. Fessenden, J. Phys. Chem. 90, 6400 (1986).

Resonance Raman, ESR, and Molecular Orbital Studies of Meta-benzosemiquinone Radical Anion. G.N.R. Tripathi, D.M. Chipman, C.A. Miderski, H. Floyd Davis,          Richard W. Fessenden, Robert H. Schuler, J. Phys. Chem. 90, 3968 (1986).

Photoinduced Electron-Transfer Reactions of 2(3H)-Furanones and Bis(benzofuranones).  Spectral and Kinetic Behavior of Radicals and Radical Cations. H.F. Davis, B.B. Lohray, K.R. Gopidas, C.V. Kumar, P.K. Das,  M.V. George, J. Org. Chem. 50, 3685 (1985).

Electron-Transfer Sensitized C-C Bond Cleavage.  FacileHomolytic Fission  via Geminate Back Electron Transfer in Photogenerated Ion-Pairs.  H.F. Davis, P.K. Das, G.W. Griffin, J. Am. Chem. Soc. 106, 6968 (1984).

Photophysical Behaviors of N-Methylthioacridone Triplet and Efficiency of Singlet Oxygen Generation from Its Quenching by Oxygen. C.V. Kumar, H.F. Davis, P.K. Das, Chem. Phys. Lett. 109, 184 (1984).

Photophysical Behavior of Exciplexes of 1,4- Dicyanonaphthelene with Methyl- and Methoxy- Substituted Benzenes.  H.F. Davis, S.K. Chattopadhyay, and P.K. Das, J. Phys. Chem. 88, 2798 (1984).

Mechanistic Aspects of 1,4-Dicyanonaphthalene- Sensitized Photo–transformations of Aryl Glycopyranosides.  H.F. Davis, P.K. Das, G.W. Griffin, and J.D. Timpa,  J. Org. Chem. 48, 5256 (1983).