Simulating X-ray spectroscopies and calculating core-excited states of molecules

P Norman, A Dreuw - Chemical reviews, 2018 - ACS Publications
During the past decade, the research field of computational X-ray spectroscopy has
witnessed an advancement triggered by the development of advanced synchrotron light …

Using X-ray free-electron lasers for spectroscopy of molecular catalysts and metalloenzymes

U Bergmann, J Kern, RW Schoenlein, P Wernet… - Nature Reviews …, 2021 - nature.com
The metal centres in metalloenzymes and molecular catalysts are responsible for the
rearrangement of atoms and electrons during complex chemical reactions, and they enable …

A group-theoretic framework for data augmentation

S Chen, E Dobriban, JH Lee - Journal of Machine Learning Research, 2020 - jmlr.org
Data augmentation is a widely used trick when training deep neural networks: in addition to
the original data, properly transformed data are also added to the training set. However, to …

A perspective on sustainable computational chemistry software development and integration

R Di Felice, ML Mayes, RM Richard… - Journal of chemical …, 2023 - ACS Publications
The power of quantum chemistry to predict the ground and excited state properties of
complex chemical systems has driven the development of computational quantum chemistry …

New and efficient equation-of-motion coupled-cluster framework for core-excited and core-ionized states

ML Vidal, X Feng, E Epifanovsky… - Journal of Chemical …, 2019 - ACS Publications
We present a fully analytical implementation of the core–valence separation (CVS) scheme
for the equation-of-motion (EOM) coupled-cluster singles and doubles (CCSD) method for …

Water networks in photosystem II using crystalline molecular dynamics simulations and room-temperature XFEL serial crystallography

MD Doyle, A Bhowmick, DC Wych… - Journal of the …, 2023 - ACS Publications
Structural dynamics of water and its hydrogen-bonding networks play an important role in
enzyme function via the transport of protons, ions, and substrates. To gain insights into these …

Revealing the three-dimensional structure of microbunched plasma-wakefield-accelerated electron beams

M LaBerge, B Bowers, YY Chang… - Nature …, 2024 - nature.com
Plasma wakefield accelerators use tabletop equipment to produce relativistic femtosecond
electron bunches. Optical and X-ray diagnostics have established that their charge …

Following excited-state chemical shifts in molecular ultrafast x-ray photoelectron spectroscopy

D Mayer, F Lever, D Picconi, J Metje… - Nature …, 2022 - nature.com
The conversion of photon energy into other energetic forms in molecules is accompanied by
charge moving on ultrafast timescales. We directly observe the charge motion at a specific …

Equation-of-motion coupled-cluster theory to model L-edge x-ray absorption and photoelectron spectra

ML Vidal, P Pokhilko, AI Krylov… - The journal of physical …, 2020 - ACS Publications
We present an extension of the equation-of-motion coupled-cluster singles and doubles
(EOM-CCSD) theory for computing X-ray L-edge spectra, both in the absorption (XAS) and …

On the basis set selection for calculations of core-level states: Different strategies to balance cost and accuracy

R Sarangi, ML Vidal, S Coriani, AI Krylov - Molecular Physics, 2020 - Taylor & Francis
We present a study on basis set effects in correlated calculations of core-level states. While it
is well recognised that the core-level states require using more extensive basis sets than …