3.1 Dynamics of Condensed Phase Molecular Systems
Project coordinator(s): E. Nibbering, O. Kornilov

Project Goals

The aim is the real-time determination of ultrafast structural dynamics of molecular and biomolecular systems in the condensed phase.

This project aims at a real-time observation of ultrafast molecular processes in the condensed phase, addressing the dynamics of elementary excitations, photo-induced chemical reactions and ultrafast changes of the electronic and/or chemical structure of molecular systems. Hydrogen bond dynamics of constitute a major fraction of the research. Chemical reactions studied include hydrogen and proton transfer, electron transfer, bond fission, ring-opening/closure and cis/trans isomerizations. These activities fall in the field of ultrafast chemistry, also known as femtochemistry. The project makes use of a broad range of experimental techniques including all-optical pump-probe spectroscopy in a range from the mid-infrared to soft-x-ray, infrared photon-echo and multidimensional vibrational spectroscopies, and photoelectron spectroscopy using ultrashort VUV pulses.

Femtosecond IR spectroscopy as a tool to explore ultrafast hydrogen bond dynamics in hydrated DNA


Key Publications

  • Key publications
CHE14 R. Costard, I. A. Heisler and T. Elsaesser.
Structural dynamics of hydrated phospholipid surfaces probed by ultrafast 2D spectroscopy of phosphate vibrations
Journal of Physical Chemistry Letters 5 (2014) 506-51
URL, DOI or PDF-File
SGL16 T. Siebert, B. Guchhait, Y. Liu, B. P. Fingerhut and T. Elsaesser.
Range, magnitude, and ultrafast dynamics of electric fields at the hydrated DNA surface
Journal of Physical Chemistry Letters 7 (2016) 3131−3136
URL, DOI or PDF-File
DCP16 F. Dahms, R. Costard, E. Pines, B. P. Fingerhut, E. T. J. Nibbering and T. Elsaesser.
The hydrated excess proton in the Zundel cation H5O2+: The role of ultrafast solvent fluctuations
Angewandte Chemie. International Edition 55 (2016) 10600–10605.
URL, DOI or PDF-File
EQF14 M. Ekimova, W. Quevedo, M. Faubel, Ph. Wernet and E. T. J. Nibbering
A liquid flatjet system for solution phase soft-X-ray spectroscopy
Structural Dynamics 2 (2015) 054301/1-13
URL, DOI or PDF-File
BNY15 F. Buchner, A. Nakayama, S. Yamazaki, H.-H. Ritze and A. Lübcke
Excited-state relaxation of hydrated thymine and thymidine measured by liquid-jet photoelectron spectroscopy: experiment and simulation
Journal of American Chemical Society 137 (2015) 2931-2938
URL, DOI or PDF-File