George L. Barnes

Prior to taking my position at Siena, I held two postdoctoral research assistantships.  The first was with Prof. Hase at Texas Tech University where I studied gas phase collisions between ions and surfaces.  The second was with Prof. Kellman at the University of Oregon where I studied spectroscopic Hamiltonians fit to regions well above isomerization barriers.  

My Siena Experience

My Teaching Philosophy

 I encourage students to become active participants in the teaching process.  I love when students ask questions in lecture and studio.  Some of the most interesting and informative discussions start from simple questions.

My Favorite Courses to Teach

Chemistry 310: Thermodynamics
Chemistry 320: Quantum Mechanics and Spectroscopy
Chemistry 110/120: General Chemistry I and II

My Professional Experience

Current Research

I am very interested in chemical dynamics.  Specifically, I try to decipher the mechanism for high-energy reactions that take place between protonated peptide and organic self-assembled monolayer surfaces.  My research group and I perform atomistic simulations that have highlighted the importance of proton mobility in both interfacial reactivity and statistical fragmentation events.  For more information, visit my research webpage.

Articles & Book Reviews

• Energy and Temperature Dependent Dissoci- ation of the Na+(benzene)1,2 clusters: Importance of Anharmonicity
  Journal of Chemical Physics
  2015
• The Effect of Protonaton Site and Conformation on Surface-Induced Dissociation in a Small, Lysine Containing Peptide
  Chemical Physics Letters
  2015
• The Role of Proton Transfer in Surface-induced Dissociation
  Journal of Physical Chemistry C
  2014
• The VENUS/NWChem software package. Tight coupling between chemical dynamics simulations and electronic structure theory
  Computer Physics Communications, vol. 185
  2014
• Complex Formation during SID and Its Effect on Proton Mobility
  Journal of Physical Chemistry Letters, vol. 4
  2013
• Surface Deposition Resulting from Collisions between Diglycine and Chemically Modified Alkylthiolate Self-Assembled Monolayer Surfaces
  Journal of Physical Chemistry C, vol. 117
  2013
• Time Dependent Dynamics of a Coupled Quantum Oscillator System in a Small Thermal Environment
  Journal of Chemical Physics, vol. 139
  2013
• Visualizing the Zero Order Basis of the Spectroscopic Hamiltonian
  Journal of Chemical Physics, vol. 136
  2012
• Detailed Analysis of Polyad-Breaking Spectroscopic Hamiltonians for Multiple Minima with Above Barrier Motion: Isomerization in HO₂
  Journal of Chemical Physics, vol. 134
  2011
• Effective Hamiltonian for Femtosecond Vibrational Dynamics
  Journal of Chemical Physics, vol. 135
  2011
• Fragmentation and Reactivity in Collisions of Protonated Diglycine with Chemically Modified Perfluorinated Alkylthiolate-Self-Assembled Monolayer Surfaces
  Journal of Chemical Physics, vol. 134
  2011
• Efficient Resource Matching in Heterogeneous Grid Using Resource Vector
  International Journal of Computer Science and Information Technology
  2010
• Model Non-equilbrium Molecular Dynamics Simulation of Heat Transfer from a Hot Gold Surface to an Alkylthiol Self-Assembled Monolayer
  Physical Chemistry Chemical Physics, vol. 12
  2010
• Energy Transfer, Unfolding, and Fragmentation Dynamics in Collisions of N-Protonated Octaglycine with a H-SAM
  Journal of the American Chemical Society, vol. 131
  2009
• NH₄⁺ + CH₄ gas phase collisions as a possible analogue to protonated peptide/surface induced dissociation
  Journal of Physical Chemistry A, vol. 113
  2009
• Transition State Analysis: Bent out of shape
  Nature Chemistry, vol. 1
  2009
• An equilibrium focused approach to calculating the Raman spectrum of the symmetric OH stretch in formic acid dimer
  Journal of Molecular Spectroscopy, vol. 249
  2008
• Elucidating energy disposal pathways following excitation of the symmetric OH stretching band in formic acid dimer
  Chemical Physics Letters, vol. 460
  2008
• Symmetric double proton tunneling in formic acid dimer: A diabatic basis approach
  Journal of Physical Chemistry B, vol. 112
  2008
• The effects of asymmetric motions on the tunneling splittings in formic acid dimer
  Journal of Chemical Physics, vol. 129
  2008
• The effects of asymmetric motions on the tunneling splittings in formic acid dimer
  Journal of Chemical Physics, vol. 129
  2008
• Ion imaging studies of product rotational alignment in collisions of NO (X²Π_1/2, j=0.5) with Ar
  Chemical Physics, vol. 301
  2004
• Recombination and Reaction Dynamics Following Photodissociation of CH₃OCl in Solution
  Journal of Physical Chemistry A, vol. 108
  2004
• Direct measurement of the preferred sense of NO rotation after collision with argon
  Science, vol. 293
  2001

Presentations

• Post-Collision Dynamics of Hyperthermal Peptide + Surface Collision Systems
  2015
  Mesilla Chemistry Workshop on Isolated Biomolecules and Biomolecular Interactions, Mesilla, New Mexico
• An Examination of SID for Different Protonation States and Conformations of GGKG-H+
  2014
  13th Annual MERCURY Conference on Undergraduate Computational Chemistry, Lewisburg, Pennsylvania
• An Examination of SID for Different Protonation States and Conformations of GGKG-H+
  2014
  Siena College Summer Research Symposium, Loudonville, New York
• Fragmentation and Ring-Opening during Collisions between Cyclic GGKG-H+ and a Perfluo- rinated Self-Assembled Monolayer
  2014
  13th Annual MERCURY Conference on Undergraduate Computational Chemistry, Lewisburg, Pennsylvania
• Fragmentation and Ring-Opening during Collisions between Cyclic GGKG-H+ and a Perfluo- rinated Self-Assembled Monolayer
  2014
  Siena College Summer Research Symposium, Loudonville, New York
• Post-Collision Dynamics and Reactivity of Hyperthermal Peptide + Surface Collision Systems
  2014
  Union College Chemistry Department Seminar, Schenectady, New York
• The Role of Proton Mobility in Peptide Fragmentation Dynamics and Complex Formation
  2014
  Eastern NY ACS Undergraduate Research Symposium, Lewisburg, Pennsylvania
• Development of a Potential Energy Surface Suitable for Direct Dynamics Simulations of the Collisions between Benzene Radical Cation and a Self-Assembled Monolayer Surface
  2013
  Siena College Academic Celebration, Loudonville, New York
• Effects of Proton Transfer on Fragmentation Dynamics in Collisions of N-Protonated Octaglycine with an F-SAM Surface
  2013
  Siena College Academic Celebration, Loudonville, New York
• Surface Deposition Resulting from Collisions Between Diglycine and Chemically Modified Alkylthiolate Self-Assembled Monolayer Surfaces
  2013
  5th Annual Eastern New York ACS Undergraduate Research Symposium, Loudonville, New York
• The Role of Proton Mobility in Peptide Fragmentation Dynamics and Complex Formation
  2013
  12th MERCURY Conference on Computational Chemistry, Lewisburg, Pennsylvania
• Fragmentation and Reactivity in Collisions of Protonated Diglycine with Chemically Modified F-SAM Surfaces
  2011
  Gaseous Ions Gordon Research Conference, Galveston, Texas
• Equilibrium Focused Approaches to Calculating Tunneling Splittings in Formic Acid Dimer
  2008
  55th Annual Western Spectroscopy Conference, Pacific Grove, California
• Semi classical modeling of preferred senses of product rotation resulting from rotationally inelastic atom-diatom scattering: Rotational vs. Translational phase interference effects
  2003
  50th Annual Western Spectroscopy Conference, Pacific Grove, California
• Monte Carlo classical trajectory modeling of angular momentum alignment and orientation in rotationally inelastic atom-diatom collisions: attractive and repulsive effects in NE and Ar-NO
  2002
  49th Annual Western Spectroscopy Conference, Pacific Grove, California
• Classical modeling of rotationally inelastic scattering involving both single and multiple encounter collisions
  2001
  48th Annual Western Spectroscopy Conference, Pacific Grove, California