chemical physics

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A quantitative look at electron collisions with excited state molecules
Post, September 9, 2026 • The details of electron interactions with excited-state molecules can be important in plasma processes but are experimentally elusive. CRF researchers Jonathan Frank and Dave Chandler, together with postdocs Haw-Wei Lin and Eric Smoll, developed a way to measure these interactions and employed it in their paper "Electron-ionization-dissociation dynamics of laser-excited SO2 (B 1B1/A 1A2) studied using velocity map imaging," published...

Improving understanding of advanced Light-Emitting Materials
Post, December 3, 2025 • Laura McCaslin, CRF postdocs Varun Rishi and Ali Abou Taka and Hrant Hratchian (UC Merced), published a paper in "The Journal of Physical Chemistry Letters" on "Quantifying Design Principles for Light-Emitting Materials with Inverted Singlet–Triplet Energy Gaps." Most organic light-emitting materials lose efficiency because 75% of excitons are non-emissive triplets....

Judit Zádor Elected Fellow of The Combustion Institute
Post, March 5, 2024 • Judit Zádor (8353), a physical chemist, has been elected a 2024 Fellow of The Combustion Institute “for exceptional contributions in theoretical chemical kinetics and innovations in approaches for automating quantum chemical calculations.” The lifetime honorific title of Fellow is a testament to active participation in the combustion field through publications...
Judit Zador

Molecular Cage Adapts its Shape to its Contents
Post, September 3, 2026 • Molecular cages that sequester certain ions can be important for designing new strategies for selective capture of critical elements from aqueous solution. Using advanced theory and unique spectroscopy methods available at Sandia, CRF researchers Tim Zwier, Chin Lee, and Kendrew Au, together with Sandia colleague Jessica Rimsza and collaborators from LANL,...

Nils Hansen Receives Wilhelm Jost Memorial Medal
Post, June 24, 2024 • Nils Hansen, a physical chemist, has been chosen to receive the Wilhelm Jost Memorial Medal and deliver the Jost memorial lectures, awarded by the Göttingen Academy of Sciences and Humanities with guidance from the German Bunsen Society for Physical Chemistry. This award is given to an internationally acclaimed physical chemist...
Nils Hansen, a physical chemist, working

Theory of the tunneling ‘switch’
Post, August 27, 2026 • CRF researcher Timothy Zwier, together with Edwin Sibert from the University of Wisconsin-Madison, published a paper on "On the role of symmetry in quenching OH tunneling in 2,6-dimethylphenol" in "The Journal of Chemical Physics", providing more detailed theoretical descriptions of recent experiments that were interpreted to show that certain symmetry states...

Tim Zwier Awarded Miguel Catalán Medal
Post, September 17, 2025 • Tim Zwier, was awarded the Miguel Catalán Medal at the XVIII Iberian Joint Meeting on Atomic and Molecular Physics, July 21-24, 2025 in Vigo, Spain The medal, named for Prof. Miguel Catalán (1894-1957), honors a scientist for exceptional contributions and research record in the field of Atomic and Molecular Physics....