Expanding Horizons in Quantum Chemical Studies: The Versatile Power of MRSF-TDDFT

S Lee, W Park, CH Choi - Accounts of Chemical Research, 2025 - ACS Publications
Conspectus While traditional quantum chemical theories have long been central to
research, they encounter limitations when applied to complex situations. Two of the most …

OpenQP: A Quantum Chemical Platform Featuring MRSF-TDDFT with an Emphasis on Open-Source Ecosystem

V Mironov, K Komarov, J Li, I Gerasimov… - Journal of Chemical …, 2024 - ACS Publications
The OpenQP (Open Quantum Platform) is a new open-source quantum chemistry library
developed to tackle sustainability and interoperability challenges in the field of …

Ultrafast excited state aromatization in dihydroazulene

S Shostak, W Park, J Oh, J Kim, S Lee… - Journal of the …, 2023 - ACS Publications
Excited-state aromatization dynamics in the photochemical ring opening of dihydroazulene
(DHA) is investigated by nonadiabatic molecular dynamics simulations in connection with …

Assessment of the Electron Correlation Treatment on the Quantum-Classical Dynamics of Retinal Protonated Schiff Base Models: XMS-CASPT2, RMS-CASPT2, and …

L Barneschi, D Kaliakin, M Huix-Rotllant… - Journal of Chemical …, 2023 - ACS Publications
We compare the performance of three different multiconfigurational wave function-based
electronic structure methods and two implementations of the spin-restricted ensemble …

Doubly Tuned Exchange–Correlation Functionals for Mixed-Reference Spin-Flip Time-Dependent Density Functional Theory

K Komarov, W Park, S Lee… - Journal of Chemical …, 2023 - ACS Publications
It is demonstrated that significant accuracy improvements in MRSF-TDDFT can be achieved
by introducing two different exchange–correlation (XC) functionals for the reference Kohn …

Mixed-reference spin-flip time-dependent density functional theory for accurate x-ray absorption spectroscopy

W Park, M Alías-Rodríguez, D Cho, S Lee… - Journal of Chemical …, 2022 - ACS Publications
It is demonstrated that the challenging core-hole particle (CHP) orbital relaxation for core
electron spectra can be readily achieved by the mixed-reference spin-flip (MRSF)–time …

UMRSF-TDDFT: Unrestricted Mixed-Reference Spin-Flip-TDDFT

K Komarov, M Oh, H Nakata, S Lee… - The Journal of Physical …, 2024 - ACS Publications
An unrestricted version of Mixed-Reference Spin-Flip Time-Dependent Density Functional
Theory (UMRSF-TDDFT) was developed based on unrestricted Kohn–Sham orbitals (UKS) …

Accurate spin–orbit coupling by relativistic mixed-reference spin-flip-tddft

K Komarov, W Park, S Lee, T Zeng… - Journal of Chemical …, 2023 - ACS Publications
Relativistic mixed-reference spin-flip (MRSF)-TDDFT is developed considering the spin–
orbit coupling (SOC) within the mean-field approximation. The resulting SOC-MRSF faithfully …

Dual fluorescence of octatetraene hints at a novel type of singlet-to-singlet thermally activated delayed fluorescence process

W Park, J Shen, S Lee, P Piecuch, T Joo… - The Journal of …, 2022 - ACS Publications
A novel type of singlet-to-singlet thermally activated delayed fluorescence (STS-TADF) from
the optically bright 11 B u+ and dark 21 A g–states of octatetraene is proposed based on …

Chemoexcited Formation and Radiationless Decay Dynamics of Firefly Chromophore

M Farmani, S Lee, T Zeng, CH Choi - The Journal of Physical …, 2024 - ACS Publications
Multistate nonadiabatic dynamics combined with Mixed-Reference Spin-Flip Time-
Dependent Density Functional Theory (MRSF-TDDFT) were performed to investigate the …