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XRayProton SIGNED

Ultrafast Structural Dynamics of Elementary Water-Mediated Proton Transport Processes

Total Cost €

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EC-Contrib. €

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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.

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

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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