A dual experimental–theoretical perspective on ESPT photoacids and their challenges ahead

N Sülzner, G Jung, P Nuernberger - Chemical Science, 2025 - pubs.rsc.org
Photoacids undergo an increase in acidity upon electronic excitation, enabling excited-state
proton transfer (ESPT) reactions. A multitude of compounds that allow ESPT has been …

Capturing an Eigen complex in an acid-base reaction shows step-resolved molecularity

SH Lee, YJ Choi, YJ Kim, JM Kee, OH Kwon - Cell Reports Physical …, 2024 - cell.com
Summary In the Eigen-Weller framework, acid-base reactions are described as those
consisting of serial steps. The steps include the encounter of acid and base compounds …

Excited state proton transfer in the triplet state of 8-hydroxy-5-nitroquinoline: a transient absorption and time-resolved resonance Raman spectroscopic study

R Wang, F Zhang, X Pan, X Zheng, J Xue… - Physical Chemistry …, 2023 - pubs.rsc.org
8-Hydroxy-5-nitroquinoline (NO2-QN-OH) is an antimicrobial, anti-inflammatory and
anticancer agent, and has been approved for use in the treatment of diseases. Its …

Excited state proton transfer of triplet state p-nitrophenylphenol to amine and alcohol: a spectroscopic and kinetic study

X Pan, T Han, J Long, B Xie, Y Du, Y Zhao… - Physical Chemistry …, 2022 - pubs.rsc.org
Hydroxyaromatic compounds (ArOHs) have a wide range of applications in catalytic
synthesis and biological processes due to their increased acidity upon photo-excitation. The …

Lifetimes and Lifetime-Associated Spectra for Reversible Excited Two-State Reactions

SW Lee, OH Kwon - The Journal of Physical Chemistry A, 2025 - ACS Publications
Photoinduced excited-state processes have been platforms for understanding the molecular
mechanisms of many chemical and biological reactions. To elucidate associated chemical …

Effect of electron-donating substitution on the triplet state reactivities of 1-nitronaphthalene

Y Wu, Y Wang, H Guan, Y Du, X Zheng… - Spectrochimica Acta Part A …, 2023 - Elsevier
Nitro-polycyclic aromatic hydrocarbons (nitro-PAHs), often found in polluted air, are
carcinogenic and mutagenic. The nitro group increases the spin–orbit coupling and results …

Acid–base reaction of a cationic hydration probe in vicinity of anionic interface of AOT reverse micelles

HW Nho, JH Park, A Adhikari, OH Kwon - Journal of Molecular Liquids, 2021 - Elsevier
The excited-state proton transfer (ESPT) of a cationic super-photoacid, N-methyl-7-
hydroxyquinolium, has been studied within the water pool of an aerosol-OT reverse micelle …

Residence and diffusion of a dynamically prototropic hydration probe in AOT reverse micelles

A Adhikari, JH Park, HW Nho, OH Kwon - Journal of Molecular Liquids, 2020 - Elsevier
We investigated the hydration dynamics in the nanosized water pool of an Aerosol-OT (AOT)
reverse micelle (RM) using a prototropic (proton-donating) fluorescent dye, N-methyl-7 …

Quantifying the Ground‐State Hydrogen‐Bond Formation of a Super‐Photoacid by Inspecting Its Excited‐State Dynamics

YJ Choi, HW Nho, YJ Kim, OH Kwon - ChemPhotoChem, 2024 - Wiley Online Library
The identification and quantification of hydrogen (H)‐bonded complexes form the
cornerstone of reaction‐mechanism analysis in ultrafast proton‐transfer reactions …

Effects of zero point vibration on the reaction dynamics of water dimer cations following ionization

H Tachikawa - Journal of Computational Chemistry, 2017 - Wiley Online Library
Reactions of water dimer cation following ionization have been investigated by means of a
direct ab initio molecular dynamics method. In particular, the effects of zero point vibration …