| Date |
Highlight |
Links to more Information
|
|
|
|
12 February 2007
|
Headline news:
A general framework based on Eigen and Weller's classic
diffusion reaction model for aqueous acid-base neutralization
reactions explains that base-induced solvent switches mediate
the proton-transfer dynamics between pyranine and trichloroacetate.
|
Link to original paper |
| |
One sentence summary:
Upon mutual diffusion of an acid and a base to form an encounter
reaction complex in aqueous solution, ultrafast solvent switches
mediate the proton transfer between acid and base. |
More details
on page of subproject 2 |
| |
|
|
| |
Link to News &
Views commentary by James T. Hynes
|
Contact: Erik T. J.
Nibbering
Contact: Ehud Pines
|
| |
External funding by:
German-Israeli Foundation for Scientific Research and Development:
GIF 722/01.
Cultural department and study mission (Kulturabteilung und
Studienmission) of the Embassy of the Arabic Republic Egypt
(Omar F. Mohammed).
|
|
|
|
|
8 February 2007
|
Headline news:
Inter- and intramolecular vibrations of water are used
as structural probes to show that vibrational energy transfer
from individually excited water molecules to intermolecular
modes follows a two-stage scenario of ultrafast weakening
and slower breaking of hydrogen bonds. |
Link to original paper |
| |
One sentence summary:
A two-stage structural response to vibrational energy disposal
in the hydrogen bond network of water is revealed to consist
of initial rearrangement into local intermolecular modes with
hydrogen bond weakening, followed by delocalization over extended
water networks accompanied by hydrogen bond breaking and macroscopic
heating.
|
More details
on page of subproject 1 |
| |
|
|
| |
External funding by:
German Science Foundation: SFB450-B2 (Sonderforschungsbereich
450 "Analyse und Steuerung ultraschneller photoinduzierter
Reaktionen").
 Mizuho
Foundation for the Promotion of Sciences (S. Ashihara)
Alexander von Humboldt Foundation (A. Espagne)
|
Contact: Erik T. J.
Nibbering
Contact: Thomas Elsaesser
|
| |