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12 November 2009
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Headline news:
Carbonic acid, the hydrated form of carbon dioxide, so
ubiquitous on Earth but yet to be observed in aqueous solution,
can be accessed with transient infrared spectroscopy. |
Link to
original paper |
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One sentence summary:
The intrinsic formation dynamics of carbonic acid from ultrafast
protonation of bicarbonate in aqueous solution is measured
with femtosecond infrared spectroscopy, resulting in the determination
of the real acidity constant, that will be of much use in
research areas ranging from biophysiology, biogeochemistry,
ocean ecology and carbon dioxide sequestration. |
Pressemitteilung
Bildung
von Kohlensäure in Echtzeit verfolgt
 Press
Release
Real
time generation and observation of carbonic acid
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Ultrafast protonation of bicarbonate using UV-photoexcited
naphthol photoacid generates carbonic acid, H2CO3,
in aqueous solution as followed by infrared-active marker
modes
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Communiqué
de Presse
Formation
et observation de l’acide carbonique en temps réel
Persbericht
Koolzuur
molecule in water gedetecteerd
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Photos
Ehud Pines, Dina Pines, Mirabelle Prémont-Schwarz,
Katrin Admaczyk and Erik T. J. Nibbering having a break after
discussing the carbonic acid results in march 2009.
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More
details on page of subproject 2
Carbonic acid captured
Article
by Simon Hadlington
Fünf Minuten Chemie
Kohlensäure gibt es praktisch nicht
Article
by Wolfgang W. Merkel
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External funding by:
German-Israeli Foundation for Scientific Research and Development:
GIF I-876-107.5. |
Contact: Erik T. J.
Nibbering
Contact: Ehud Pines
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29 April 2009
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Headline news:
Subpicosecond infrared-pump/anti-Stokes Raman-probe spectroscopy
provides key insight into the question how vibrational energy
flows in DNA. |
Link to original paper |
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One sentence summary:
Spectrally selective excitation within the NH stretching band
of adenine–thymine base pairs in DNA oligomers is observed
to lead to distinct vibrational energy flow pathways in the
NH bending fingerprint modes. |
More details
on page of subproject 3 |
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Contact: Wolfgang Werncke
Contact: Erik T. J.
Nibbering
Contact: Thomas Elsaesser
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External funding by:
German Science Foundation: DFG WE 1489/6 |
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