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arXiv · 2202.12702

Ab initio Circular Dichroism with the Yambo code: beyond the Independent Particle approximation

Elena Molteni·Giuseppe Mattioli·Davide Sangalli
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Abstract

Circular dichroism (CD) spectroscopy is a useful technique for characterizing chiral molecules. It is more sensitive than total absorption to molecule conformation, and it is routinely used to identify enantiomers. We present here absorption and CD spectra within the Time Dependent (TD) B3LYP approximation in c-GlyPhe, a cyclo-dipeptide containing an aromatic group. Results from codes in localized basis-set (Orca and MolGW) are carefully compared with the novel TD-B3LYP implementation we developed in the Yambo code, that uses a plane-wave basis set.

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Elena Molteni, Giuseppe Mattioli, Davide Sangalli. 2022-02-25. Ab initio Circular Dichroism with the Yambo code: beyond the Independent Particle approximation. https://doi.org/10.1393/ncc%2Fi2022-22175-7

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