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Ultrafast dynamics of hydrogen bonded structures in condensed matter

Ultrafast dynamics of hydrogen bonded structures in condensed matter

Objective

Structure-function relationships in condensed matter will be unraveled by studying structural dynamics on atomic length and time scales. The most advanced structure-sensitive methods of ultrafast science such as time-resolved x-ray diffraction and multidimensional vibrational spectroscopy with a temporal resolution better than 100 fs will be applied for mapping fluctuating (macro)molecular structures and photoinduced structural transformations of solids in real-time. The following phenomena will be addressed: (i) Interactions between functional units of individual nucleic base pairs and deoxyribonucleic acid (DNA) oligomers will be determined by multidimensional vibrational spectroscopy. The transfer of excitations in a local geometry and along the double helix, energy dissipation along the helix and into the aqueous environment, as well as the mechanisms of local and global hydration will be studied via the ultrafast response of local vibrations. In this way, hydrogen bonding interactions of water with the DNA backbone and with base pairs are discerned. (ii) Photoinduced structural transformations in prototype hydrogen-bonded solids will be studied by ultrafast x-ray diffraction. The so far unknown dynamics and driving forces of phase transitions in molecular ferroelectrics such as ammonium sulfate and others will be determined by recording transient diffraction patterns after electronic and/or vibrational excitation. A key issue will be the so far unresolved change of the hydrogen bond pattern. This work will include the implementation of new forefront techniques of ultrafast science, e.g., ultrafast x-ray powder diffraction, for a broad range of future applications.
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Principal Investigator

Hans Thomas Elsaesser (Prof.)

Host institution

FORSCHUNGSVERBUND BERLIN EV

Address

Rudower Chaussee 17
12489 Berlin

Germany

Activity type

Higher or Secondary Education Establishments

EU Contribution

€ 2 490 500

Principal Investigator

Hans Thomas Elsaesser (Prof.)

Administrative Contact

Friederike Schmidt-Tremmel (Dr.)

Beneficiaries (1)

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FORSCHUNGSVERBUND BERLIN EV

Germany

EU Contribution

€ 2 490 500

Project information

Grant agreement ID: 247051

Status

Closed project

  • Start date

    1 March 2010

  • End date

    28 February 2015

Funded under:

FP7-IDEAS-ERC

  • Overall budget:

    € 2 490 500

  • EU contribution

    € 2 490 500

Hosted by:

FORSCHUNGSVERBUND BERLIN EV

Germany