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Related papers: Hydrogen Bonds in Excited State Proton Transfer

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Hydrogen as a fuel plays a crucial role in driving the transition to net zero greenhouse gas emissions. To realise its potential, obtaining a means of efficient storage is paramount. One solution is using metal hydrides, owing to their good…

To understand the pressure-induced changes in the electronic structure and the electron-phonon interaction in yttrium, we have studied hexagonal close-packed (hcp) yttrium, stable at ambient pressure and double hexagonal close-packed (dhcp)…

Superconductivity · Physics 2007-05-23 Prabhakar P. Singh

Some aspects of direct ion transfer across the water/1,2-dichloroethane are analyzed using a very simple model based on thermodynamic considerations. It was concluded that ion solvation by water molecules may occur in some particular cases…

Chemical Physics · Physics 2008-02-03 C. Sanchez , S. A. Dassie , A. M. Baruzzi , E. P. M. Leiva

Understanding the dynamic nature of the semiconductor-water interface is crucial for developing efficient photoelectrochemical water splitting catalysts, as it governs reactivity through charge and mass transport. In this study, we employ…

Chemical Physics · Physics 2024-05-03 Sagarmoy Mandal , Tushar Kanti Ghosh

Hydrogen bonds are a common feature in protein folding and aggregation. Due to their chemical peculiarities in terms of strength and directionality, a particular attention must be paid to the definition of the hydrogen bond potential…

Biomolecules · Quantitative Biology 2012-08-13 Marta Enciso

In models of Pt 111 and Pt 100 surfaces in water, motions of molecules in the first hydration layer are spatially and temporally correlated. To interpret these collective motions, we apply quantitative measures of dynamic heterogeneity that…

Materials Science · Physics 2015-06-15 Adam P. Willard , David T. Limmer , Paul A. Madden , David Chandler

Fluids under extreme confinement exhibit unique structures and intermolecular bonding, distinct from their bulk analogs, driving innovative applications at the water-energy nexus. Probing confined water experimentally at the length scale of…

The dynamics of hydrogen bonds among water molecules themselves and with the polar head groups (PHG) at a micellar surface have been investigated by long molecular dynamics simulations. The lifetime of the hydrogen bond between a PHG and a…

Soft Condensed Matter · Physics 2009-11-07 Sundaram Balasubramanian , Subrata Pal , Biman Bagchi

By employing single charge injections with an atomic force microscope, we investigated redox reactions of a molecule on a multilayer insulating film. First, we charged the molecule positively by attaching a single hole. Then we neutralized…

Mesoscale and Nanoscale Physics · Physics 2021-05-05 Shadi Fatayer , Florian Albrecht , Ivano Tavernelli , Mats Persson , Nikolaj Moll , Leo Gross

In this perspective, we discuss a novel water-splitting scenario, namely the direct oxidation of water molecules by organic photooxidants in hydrogen-bonded chromophore-water complexes. In comparison with the established scenario of…

Chemical Physics · Physics 2022-03-15 Wolfgang Domcke , Andrzej L. Sobolewski

The pH dependence of emission from graphene oxide is believed to be due to the protonation of surface functional groups. In this study we use transient absorption spectroscopy to study the sub-picosecond charge dynamics in graphene oxide…

Quantum proton tunneling (QPT) in the two representative multi-electron/-proton transfer electrode processes, i.e. hydrogen evolution reaction (HER) and oxygen reduction reaction (ORR), was investigated by using polycrystalline platinum…

Chemical Physics · Physics 2019-07-02 Ken Sakaushi

Photophysical and photochemical dynamics of ground state and excited state proton transfer reaction is reported for Pyrrole 2-Carboxyldehyde (PCL). Steady state absorption and emission measurements are conducted in PCL. The theoretical…

Atomic and Molecular Clusters · Physics 2010-07-14 Papia Chowdhury , Rakesh Kumar , Prakash Chandra Sati , Anirban Pathak

Photochromic molecular structures constitute a unique platform for constructing molecular switches, sensors and memory devices. One of their most promising applications is as light-switchable electron acceptor or donor units. Here, we…

Chemical Physics · Physics 2020-07-21 Jakub K. Sowa , Emily A. Weiss , Tamar Seideman

We study, in the multipolar coupling scheme, a uniformly accelerated multilevel hydrogen atom in interaction with the quantum electromagnetic field near a conducting boundary and separately calculate the contributions of the vacuum…

Quantum Physics · Physics 2009-11-13 Hongwei Yu , Zhiying Zhu

We theoretically investigate an exciton-coupled electron transfer (XCET) process that is conversion of an exciton into a charge transfer state. This conversion happens in an exciton transfer (XT) process, and the electron moves away in an…

Quantum Physics · Physics 2017-11-03 Souichi Sakamoto , Yoshitaka Tanimura

The fidelity and quantum nondemolition character of the dispersive readout in circuit QED are limited by unwanted transitions to highly excited states at specific photon numbers in the readout resonator. This observation can be explained by…

Quantum Physics · Physics 2026-04-28 Zihao Wang , Benjamin D'Anjou , Philippe Gigon , Alexandre Blais , Machiel S. Blok

Radical recombination has been proposed to lead to the formation of complex organic molecules (COMs) in CO-rich ices in the early stages of star formation. These COMs can then undergo hydrogen addition and abstraction reactions leading to a…

Astrophysics of Galaxies · Physics 2018-06-07 S. Álvarez-Barcia , P. Russ , J. Kästner , T. Lamberts

Water is often viewed as a collection of monomers interacting electrostatically with each other. We compare the water proton momentum distributions from recent neutron scattering data with those calculated from two electronic structure…

Chemical Physics · Physics 2015-05-27 C. J. Burnham , G. F. Reiter , T. Hayashi , S. Mukamel , R. L. Napoleon , T. Keyes

We present an EOM-CCSD based QM/MM study on the electron attachment process to cytosine, solvated in water. The microhydration studies cannot capture the effect of bulk water environment on the electron attachment process and one need to…

Chemical Physics · Physics 2021-07-14 Pooja Verma , Debashree Ghosh , Achintya Kumar Dutta
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