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Debadarshini Mishra and Lars Hoffman
Molecular Dynamics by Transient Inner-Shell Absorption Spectroscopy
Molecular Dynamics by Transient Inner-Shell Absorption Spectroscopy
Chemistry is enabled by the correlated dance of electrons and atoms, leading to the rearrangement of molecular structures, including the separation of existing and the formation of new inter-atomic bonds. Monitoring and understanding these fundamental steps of chemistry on their natural, ultrafast timescales is the focus of the transient inner-shell absorption spectroscopy thrust. Using femtosecond time-resolved core-to-valence XUV and X-ray transient absorption spectroscopy (TXA), we follow chemical transformations from the unique vantage points of specific reporter atoms.
TXA Spectroscopy – Selected Publications
see here for a complete list of publications
Benjamin W. Toulson, Diptarka Hait, Davide Faccialà, Daniel M. Neumark, Stephen R. Leone, Martin Head-Gordon, and Oliver Gessner, “Probing C–I Bond Fission in the UV Photochemistry of 2-Iodothiophene with Core-to-Valence Transient Absorption Spectroscopy”, J. Chem. Phys. 159, 034304 (2023), DOI: 10.1063/5.0151629.
Davide Faccialà, Benjamin W. Toulson, and Oliver Gessner, “Removal of correlated background in high-order harmonic transient absorption spectra with principal component regression”, Opt. Express 29, 35135 (2021), DOI: 10.1364/OE.435008.
Benjamin W. Toulson, Mario Borgwardt, Han Wang, Florian Lackner, Adam S. Chatterley, C. D. Pemmaraju, Daniel M. Neumark, Stephen R. Leone, David Prendergast and Oliver Gessner, “Probing Ultrafast C–Br Bond Fission in the UV Photochemistry of Bromoform with Core-to-Valence Transient Absorption Spectroscopy”, Struct. Dyn. 6, 054304 (2019), DOI: 10.1063/1.5113798.
K. Schnorr, A. Bhattacherjee, K.J. Oosterbaan, M.G. Delcey, Z. Yang, T. Xue, A.R. Attar, A.S. Chatterley, M. Head-Gordon, S.R. Leone, and O. Gessner, “Tracing the 267 nm-Induced Radical Formation in Dimethyl Disulfide Using Time-Resolved X-ray Absorption Spectroscopy”, J. Phys. Chem. Lett. 10, 1382 (2019), DOI: 10.1021/acs.jpclett.9b00159.
Florian Lackner, Adam S. Chatterley, Chaitanya D. Pemmaraju, Kristina D. Closser, David Prendergast, Daniel M. Neumark, Stephen R. Leone, and Oliver Gessner, “Direct observation of ring-opening dynamics in strong-field ionized selenophene using femtosecond inner-shell absorption spectroscopy”, J. Chem. Phys. 145, 234313 (2016), DOI: 10.1063/1.4972258.
Adam S. Chatterley, Florian Lackner, C. D. Pemmaraju, Daniel M. Neumark, Stephen R. Leone, and Oliver Gessner, “Dissociation dynamics and electronic structures of highly excited ferrocenium ions studied by femtosecond XUV absorption spectroscopy”, J. Phys. Chem. A 120, 9509 (2016), DOI: 10.1021/acs.jpca.6b09724.
Adam S. Chatterley, Florian Lackner, Daniel M. Neumark, Stephen R. Leone, and Oliver Gessner, “Tracking dissociation dynamics of strong-field ionized 1,2-dibromoethane with femtosecond XUV transient absorption spectroscopy”, Phys. Chem. Chem. Phys. 18, 14644, (2016), DOI: 10.1039/C6CP02598F.
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