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Ultrafast Structural Dynamics of Elementary Water-Mediated Proton Transport Processes

Total Cost €


EC-Contrib. €






 XRayProton project word cloud

Explore the words cloud of the XRayProton project. It provides you a very rough idea of what is the project "XRayProton" about.

elucidate    laser    elucidating    mediating    xas    bond    absorption    modern    ultraviolet    transport    levels    base    limited    molecules    poor    membrane    react    accommodating    structure    resolving    dynamics    evolution    electronic    mechanisms    monitor    protons    hydrated    conjugate    resolved    exchange    tool    proteins    transitions    acids    acid    though    structural    molecular    cells    chemistry    specificity    predominantly    questions    bulk    water    conversion    femtosecond    proceeds    hydrogen    solutions    aromatic    soft    raised    time    shown    carboxylic    mid    decades    fuel    compounds    oxidation    table    shell    infrared    scales    question    unoccupied    amine    synchrotrons    days    steady    sequential    elementary    neutralization    ray    ultrafast    trans    orbitals    nature    proton    ranges    spectroscopy    spectral    condensed    harmonic    inner    probing    pioneering    bases    ultimately    effort    aqueous    species    microscopic    visible    chemical    how    liquid    sources    solution    transfer    experiments    flatjet    alcohols    solved    utilized    bridging    picosecond    oxygen   

Project "XRayProton" data sheet

The following table provides information about the project.


Organization address
city: BERLIN
postcode: 12489

contact info
title: n.a.
name: n.a.
surname: n.a.
function: n.a.
email: n.a.
telephone: n.a.
fax: n.a.

 Coordinator Country Germany [DE]
 Total cost 2˙482˙500 €
 EC max contribution 2˙482˙500 € (100%)
 Programme 1. H2020-EU.1.1. (EXCELLENT SCIENCE - European Research Council (ERC))
 Code Call ERC-2017-ADG
 Funding Scheme ERC-ADG
 Starting year 2018
 Duration (year-month-day) from 2018-09-01   to  2023-08-31


Take a look of project's partnership.

# participants  country  role  EC contrib. [€] 
1    FORSCHUNGSVERBUND BERLIN EV DE (BERLIN) coordinator 2˙482˙500.00


 Project objective

How acids and bases react in water is a question raised since the pioneering days of modern chemistry. Recent decades have witnessed an increased effort in elucidating the microscopic mechanisms of proton exchange between acids and bases and the important mediating role of water in this. With ultrafast spectroscopy it has been shown that the elementary steps in aqueous proton transfer occur on femtosecond to picosecond time scales. Aqueous acid-base neutralization predominantly proceeds in a sequential way via water bridging acid and base molecules. These ultrafast experiments probing molecular transitions in the ultraviolet, visible and mid-infrared spectral ranges, though, only provide limited insight into the electronic structure of acids, bases and the water molecules accommodating the transfer of protons in the condensed phase. Soft-x-ray absorption spectroscopy (XAS), probing transitions from inner-shell levels to unoccupied molecular orbitals, is a tool to monitor electronic structure with chemical element specificity. The aim is now to develop steady-state and time-resolved soft-x-ray spectroscopy of acids and bases in water-poor and water-rich solutions. Here novel liquid flatjet technology is utilized with soft-x-ray sources at synchrotrons as well as table-top laser-based high-order harmonic systems, to elucidate the electronic structural evolution of proton transfer pathways. Questions to be solved are electronic structural changes upon hydrogen bond formation, the nature of hydrated proton species, and the impact of conversion from acid to conjugate base (or base to conjugate acid) in aromatic alcohols, carboxylic and amine compounds, and ultimately the oxygen oxidation state in hydrated protons. Resolving the electronic structural dynamics of elementary steps of aqueous proton transport will furthermore elucidate the role of mediating water in bulk solution, and in specific conditions such as hydrogen fuel cells or trans-membrane proteins.

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The information about "XRAYPROTON" are provided by the European Opendata Portal: CORDIS opendata.

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