Role of electronic correlations in photoionization of NO2 in the vicinity of the 2A1/2B2 conical intersection

Brambila DS, Harvey AG, Houfek K, Masin Z, Smirnova O (2017)

Publication Type: Journal article

Publication year: 2017

Journal

Physical Chemistry Chemical Physics Royal Society of Chemistry

Book Volume: 19

Pages Range: 19673-19682

Journal Issue: 30

DOI: 10.1039/c7cp01643c

Abstract

We present the first ab initio multi-channel photoionization calculations for NO2 in the vicinity of the 2A1/2B2 conical intersection, for a range of nuclear geometries, using our newly developed set of tools based on the ab initio multichannel R-matrix method. Electronic correlation is included in both the neutral and the scattering states of the molecule via configuration interaction. Configuration mixing is especially important around conical intersections and avoided crossings, both pertinent for NO2, and manifests itself via significant variations in photoelectron angular distributions. The method allows for a balanced and accurate description of the photoionization/photorecombination for a number of different ionic channels in a wide range of photoelectron energies up to 100 eV. Proper account of electron correlations is crucial for interpreting time-resolved signals in photoelectron spectroscopy and high harmonic generation (HHG) from polyatomic molecules.

Involved external institutions

Max-Born-Institut für Nichtlineare Optik und Kurzzeitspektroskopie im Forschungsverbund Berlin e.V. / Max Born Institute for Nonlinear Optics and Short Pulse Spectroscopy DE Germany (DE) Univerzita Karlova v Praze / Charles University in Prague CZ Czech Republic (CZ)

How to cite

APA:

Brambila, D.S., Harvey, A.G., Houfek, K., Masin, Z., & Smirnova, O. (2017). Role of electronic correlations in photoionization of NO2 in the vicinity of the 2A1/2B2 conical intersection. Physical Chemistry Chemical Physics, 19(30), 19673-19682. https://doi.org/10.1039/c7cp01643c

MLA:

Brambila, Danilo S., et al. "Role of electronic correlations in photoionization of NO2 in the vicinity of the 2A1/2B2 conical intersection." Physical Chemistry Chemical Physics 19.30 (2017): 19673-19682.

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