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  • Doreen Geller Leopold

    Associate Professor, Distinguished University Teaching Professor

    • Chemical Physics
    • Experimental Physical Chemistry
    • B.A. Philosophy, Cornell University, 1972
    • B.S. Chemistry, Massachusetts Institute of Technology, 1978
    • Ph.D. Harvard University, 1983 (Professor Veronica Vaida)
    • Post Doctorate Post-doctoral Associate, Joint Institute for Laboratory Astrophysics (JILA), University of Colorado, 1984-1986 (Professor Carl Lineberger)
    Office: 211 Smith Hall

Principal Research Interests

We use anion photoelectron spectroscopy and flow tube ion-molecule chemistry to study the gas phase structures and reactivities of metals and metal-ligand complexes. The electron affinities, electronic state energies and vibrational frequencies measured in these experiments provide insight into the chemical bonding and energetics of the neutral and negatively charged metal dimers, clusters and organometallic complexes. We use density functional theory to calculate the structures, vibrational properties and energies of different spin states and isomers to aid in spectroscopic assignments. The photoelectron data can provide benchmarks for computational studies, and can contribute to an improved understanding of the evolution of metallic properties with increasing particle size and the chemical reactivities of metal catalysts.

 
Doreen Leopold's research lab overview
Doreen Leopold research graphic 2
Doreen Leopold research graphic 3
Doreen Leopold graphic 4

Selected Publications

P.W. Villalta and D.G. Leopold, "A Study of the Ground and Excited States of Al3 and Al3ˉ. I. 488 nm Anion Photoelectron Spectrum," Journal of Chemical Physics, 130, 024303/1-19 (2009).

S.R. Miller, N.E. Schultz, D.G. Truhlar, and D.G. Leopold, "A Study of the Ground and Excited States of Al3 and Al3ˉ. II. Computational Analysis of the 488 nm Anion Photoelectron Spectrum and a Reconsideration of the Al3 Bond Dissociation Energy," Journal of Chemical Physics, 130, 024304/1-23 (2009).

S.R. Miller, T.P. Marcy, E.L. Millam, and D.G. Leopold, "Photoelectron Spectroscopic Characterization of the Niobium-Benzene Anion Produced by Reaction of Niobium with Ethylene," Journal of the American Chemical Society 129, 3482-3483 (2007).

Honors and Awards

  • Horace T. Morse-Minnesota Alumni Association Award for Outstanding Contributions to Undergraduate Education, 2009
  • George W. Taylor/College of Science & Engineering Alumni Society Award for Distinguished Teaching, 2000

Mailing Address

  • Doreen Geller Leopold, University of Minnesota, Department of Chemistry
  • B-1, 139 Smith Hall, 207 Pleasant St SE
  • Minneapolis, MN 55455-0431