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XRayProton SIGNED

Ultrafast Structural Dynamics of Elementary Water-Mediated Proton Transport Processes

Total Cost €

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EC-Contrib. €

0

Partnership

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 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.

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

Project "XRayProton" data sheet

The following table provides information about the project.

Coordinator
FORSCHUNGSVERBUND BERLIN EV 

Organization address
address: RUDOWER CHAUSSEE 17
city: BERLIN
postcode: 12489
website: www.fv-berlin.de

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

 Partnership

Take a look of project's partnership.

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

Map

 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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