Advanced quantum and semiclassical methods for simulating photoinduced molecular dynamics and spectroscopy

S Faraji, D Picconi… - Wiley Interdisciplinary …, 2024‏ - Wiley Online Library
Molecular‐level understanding of photoinduced processes is critically important for
breakthroughs in transformative technologies utilizing light, ranging from photomedicine to …

Perspective on Theoretical and Experimental Advances in Atmospheric Photochemistry

BFE Curchod, AJ Orr-Ewing - The Journal of Physical Chemistry A, 2024‏ - ACS Publications
Research that explores the chemistry of Earth's atmosphere is central to the current
understanding of global challenges such as climate change, stratospheric ozone depletion …

[HTML][HTML] Representation and conservation of angular momentum in the Born–Oppenheimer theory of polyatomic molecules

R Littlejohn, J Rawlinson, J Subotnik - The Journal of Chemical …, 2023‏ - pubs.aip.org
This paper concerns the representation of angular momentum operators in the Born–
Oppenheimer theory of polyatomic molecules and the various forms of the associated …

A Discrete-Variable Local Diabatic Representation of Conical Intersection Dynamics

B Gu - Journal of Chemical Theory and Computation, 2023‏ - ACS Publications
Conical intersections (CIs) are ubiquitous in polyatomic molecules and are responsible for a
wide range of phenomena in photochemistry and photophysics. Modeling the conical …

Nonadiabatic conical intersection dynamics in the local diabatic representation with Strang splitting and Fourier basis

B Gu - Journal of Chemical Theory and Computation, 2024‏ - ACS Publications
We develop and implement an exact conical intersection nonadiabatic wave packet
dynamics method that combines the local diabatic representation, Strang splitting for the …

Interexcited State Photophysics I: Benchmarking Density Functionals for Computing Nonadiabatic Couplings and Internal Conversion Rate Constants

A Manian, RJ Hudson, P Ramkissoon… - Journal of Chemical …, 2022‏ - ACS Publications
We present the first benchmarking study of nonadiabatic matrix coupling elements
(NACMEs) calculated using different density functionals. Using the S 1→ S 0 transition in …

[HTML][HTML] Search for long-lasting electronic coherence using on-the-fly ab initio semiclassical dynamics

A Scheidegger, J Vaníček, NV Golubev - The Journal of Chemical …, 2022‏ - pubs.aip.org
Using a combination of high-level ab initio electronic structure methods with efficient on-the-
fly semiclassical evaluation of nuclear dynamics, we performed a massive scan of small …

A trajectory surface hop** study of the vibration-induced autodetachment dynamics of the 1-nitropropane anion

K Issler, R Mitric, J Petersen - Theoretical Chemistry Accounts, 2023‏ - Springer
In this study, we investigate the autodetachment dynamics of the 1-nitropropane anion after
vibrational excitation of the energetically lowest C–H stretching mode using our recently …

[HTML][HTML] The parallel-transported (quasi)-diabatic basis

R Littlejohn, J Rawlinson, J Subotnik - The Journal of Chemical …, 2022‏ - pubs.aip.org
This article concerns the use of parallel transport to create a diabatic basis. The advantages
of the parallel-transported basis include the facility with which Taylor series expansions can …

Structure, dynamics and reactivity of low-oxidation state iron complexes in solution studied by ab initio molecular dynamics simulations and advanced quantum …

MR Coates - 2022‏ - diva-portal.org
Third row (3d) metals, such as iron, are cheap, Earth abundant metals with low toxicity to
humans and the environment [3]. Transition metal (TM) photochemistry involving 3d metals …