Hydrogen bonding in the electronic excited state

GJ Zhao, KL Han - Accounts of chemical research, 2012 - ACS Publications
Because of its fundamental importance in many branches of science, hydrogen bonding is a
subject of intense contemporary research interest. The physical and chemical properties of …

Cucurbituril-based supramolecular assemblies: Prospective on drug delivery, sensing, separation, and catalytic applications

N Barooah, J Mohanty, AC Bhasikuttan - Langmuir, 2022 - ACS Publications
Precise control over the stimuli-responsive noncovalent interactions operative in a complex
molecular system has emerged as a convenient way to realize applications in the detection …

Restriction of flip-flop motion as a mechanism for aggregation-induced emission

P Zhou, P Li, Y Zhao, K Han - The Journal of Physical Chemistry …, 2019 - ACS Publications
Although the restriction of intramolecular motion (RIM) has been accepted as a general
working mechanism for the aggregation-induced emission (AIE) phenomenon, some new …

New insights into the dual fluorescence of methyl salicylate: effects of intermolecular hydrogen bonding and solvation

P Zhou, MR Hoffmann, K Han, G He - The Journal of Physical …, 2015 - ACS Publications
In this paper, we propose a new and complete mechanism for dual fluorescence of methyl
salicylate (MS) under different conditions using a combined experimental (ie, steady-state …

Unraveling photo-excited behaviors and proton transfer mechanisms for coexisting 5-methoxy-salicylaldhyde azine isomers

J Zhao, B ** - Journal of Molecular Liquids, 2021 - Elsevier
In view of the paramount importance of excited state relaxation for organic fluorophores, in
this work, we mainly focus on deciphering the ground-state and excited state dynamical …

Understanding solvent polarity dependent excited state behavior and ESIPT mechanism for 2-benzo [b] thiphen-3-yl-3-hydroxy-6-methoxy-chroman-4-one compound

S **ao, Z Lou, D Ji, J Zhao - Chemical Physics Letters, 2021 - Elsevier
In view of potential applications in microbial protein tissues, the novel benzothiophene-
substituted chromenone 2-benzo [b] thiphen-3-yl-3-hydroxy-6-methoxy-chroman-4-one …

Exploring the Effect of Intermolecular H-Bonding: A Study on Charge-Transfer Contribution to Surface-Enhanced Raman Scattering of p-Mercaptobenzoic Acid

Y Wang, W Ji, H Sui, Y Kitahama, W Ruan… - The Journal of …, 2014 - ACS Publications
We report the significant effect of intermolecular hydrogen bonding (H-bonding) on surface-
enhanced Raman scattering (SERS) spectra in which the vibrational frequencies and …

Stimulus-Responsive Supramolecular pKa Tuning of Cucurbit[7]uril Encapsulated Coumarin 6 Dye

N Barooah, J Mohanty, H Pal… - The Journal of Physical …, 2012 - ACS Publications
This article reports an efficient host-assisted guest protonation mechanism in coumarin 6
(C6) dye, upon its interaction with cucurbit [7] uril (CB7) macrocycle. C6 uptakes the CB7 …

Theoretical insights into the excited-state single and double proton transfer processes of DEASH in water

X **n, W Shi, Y Zhao, G Zhao, Y Li - Chemical Physics, 2023 - Elsevier
Recently, a new fluorescent chromophore 6, 6′-((1E, 1′ E)-hydrazine-1, 2-diylidenebis
(methanylylidene)) bis (3-(diethylamino) phenol)(DEASH) with double intramolecular …

Establishing new mechanisms with triplet and singlet excited-state hydrogen bonding roles in photoinduced liquid dynamics

T Chu, B Liu - International Reviews in Physical Chemistry, 2016 - Taylor & Francis
The interaction between hydrogen donor and acceptor molecules, known well as hydrogen
bonding, forms a ubiquitous network in the natural and synthesis world. The hydrogen …