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Ke-Li Han

Researcher at Dalian Institute of Chemical Physics

Publications -  492
Citations -  30389

Ke-Li Han is an academic researcher from Dalian Institute of Chemical Physics. The author has contributed to research in topics: Excited state & Potential energy surface. The author has an hindex of 82, co-authored 491 publications receiving 26199 citations. Previous affiliations of Ke-Li Han include University of Minnesota & California Institute of Technology.

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Hydrogen bonding in the electronic excited state.

TL;DR: The electronic excited-state hydrogen-bonding dynamics, which are predominantly determined by the vibrational motions of the hydrogen donor and acceptor groups, generally occur on ultrafast time scales of hundreds of femtoseconds as mentioned in this paper.
Journal Article

Hydrogen Bonding in the Electronic Excited State

TL;DR: The research expands the understanding of the nature of hydrogen bonding by delineating the interaction between hydrogen bonds and photons, thereby providing a basis for excited-state hydrogen bonding studies in photophysics, photochemistry, and photobiology.
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Site-selective photoinduced electron transfer from alcoholic solvents to the chromophore facilitated by hydrogen bonding : A new fluorescence quenching mechanism

TL;DR: It is theoretically demonstrated for the first time that the selected hydrogen bonds are transiently strengthened in the excited states for facilitating the ultrafast solute-solvent intermolecular ET reaction.
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Early Time Hydrogen-Bonding Dynamics of Photoexcited Coumarin 102 in Hydrogen-Donating Solvents: Theoretical Study

TL;DR: It is demonstrated that the intermolecular hydrogen bonds between coumarin 102 (C102) and hydrogen-donating solvents are strengthened in the early time of photoexcitation to the electronically excited state by theoretically monitoring the stretching modes of C=O and H-O groups.
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Reversible near-infrared fluorescent probe introducing tellurium to mimetic glutathione peroxidase for monitoring the redox cycles between peroxynitrite and glutathione in vivo.

TL;DR: A near-infrared fluorescent probe based on heptamethine cyanine, which integrates with telluroenzyme mimics for monitoring the changes of ONOO(-)/GSH levels in cells and in vivo, and would provide a significant advance on the redox events involved in the cellular redox regulation.