TeraChem: A graphical processing unit‐accelerated electronic structure package for large‐scale ab initio molecular dynamics

S Seritan, C Bannwarth, BS Fales… - Wiley …, 2021 - Wiley Online Library
TeraChem was born in 2008 with the goal of providing fast on‐the‐fly electronic structure
calculations to facilitate ab initio molecular dynamics studies of large biochemical systems …

Ultrafast Raman observation of the perpendicular intermediate phantom state of stilbene photoisomerization

H Kuramochi, T Tsutsumi, K Saita, Z Wei, M Osawa… - Nature Chemistry, 2024 - nature.com
Trans–cis photoisomerization is generally described by a model in which the reaction
proceeds via a common intermediate having a perpendicular conformation around the …

Different timescales during ultrafast stilbene isomerization in the gas and liquid phases revealed using time-resolved photoelectron spectroscopy

C Wang, MDJ Waters, P Zhang, J Suchan… - Nature …, 2022 - nature.com
Directly contrasting ultrafast excited-state dynamics in the gas and liquid phases is crucial to
understanding the influence of complex environments. Previous studies have often relied on …

Excited state dynamics in unidirectional photochemical molecular motors

P Roy, AS Sardjan, WR Browne… - Journal of the …, 2024 - ACS Publications
Unidirectional photochemically driven molecular motors (PMMs) convert the energy of
absorbed light into continuous rotational motion. As such they are key components in the …

Ultrafast electronic relaxation pathways of the molecular photoswitch quadricyclane

KD Borne, JC Cooper, MNR Ashfold, J Bachmann… - Nature Chemistry, 2024 - nature.com
The light-induced ultrafast switching between molecular isomers norbornadiene and
quadricyclane can reversibly store and release a substantial amount of chemical energy …

Fast screening of minimum energy crossing points with semiempirical tight-binding methods

P Pracht, C Bannwarth - Journal of Chemical Theory and …, 2022 - ACS Publications
The investigation of photochemical processes is a highly active field in computational
chemistry. One research direction is the automated exploration and identification of …

Quantum algorithms for grid-based variational time evolution

PJ Ollitrault, S Jandura, A Miessen, I Burghardt… - Quantum, 2023 - quantum-journal.org
The simulation of quantum dynamics calls for quantum algorithms working in first quantized
grid encodings. Here, we propose a variational quantum algorithm for performing quantum …

Ultrafast Ring Closure Reaction of Gaseous cis-Stilbene from S1(ππ*)

S Karashima, X Miao, A Kanayama… - Journal of the …, 2023 - ACS Publications
cis-Stilbene (cis-St) is a well-known benchmark system for cis–trans photoisomerization. cis-
St also produces 4a, 4b-dihydrophenanthrene (DHP) in solution with a quantum yield of less …

Chiral photochemistry of achiral molecules

U Raucci, H Weir, C Bannwarth, DM Sanchez… - Nature …, 2022 - nature.com
Chirality is a molecular property governed by the topography of the potential energy surface
(PES). Thermally achiral molecules interconvert rapidly when the interconversion barrier …

Unmasking the cis-Stilbene Phantom State via Vacuum Ultraviolet Time-Resolved Photoelectron Spectroscopy and Ab Initio Multiple Spawning

M Williams, R Forbes, H Weir, K Veyrinas… - The Journal of …, 2021 - ACS Publications
We present the first vacuum ultraviolet time-resolved photoelectron spectroscopy (VUV-
TRPES) study of photoisomerization dynamics in the paradigmatic molecule cis-stilbene. A …