Ultrafast phase transitions in metastable water near liquid interfaces.
Faraday Discuss
; 141: 67-79; discussion 81-98, 2009.
Article
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| MEDLINE
| ID: mdl-19227352
ABSTRACT
Electron spectroscopy for chemical analysis (ESCA) is a powerful tool for the quantitative analysis of the composition and the chemical environment of molecular systems. Due to the lack of compatibility of liquids and vacuum, liquid-phase ESCA is much less well established. The chemical shift in the static ESCA approach is a particularly powerful observable quantity for probing electron orbital energies in molecules in different molecular environments. Employing high harmonics of 800 nm (40 eV), near-infrared femtosecond pulses, and liquid-water microbeams in vacuum we were able to add the dimension of time to the liquid interface ESCA technique. Tracing time-dependent chemical shifts and energies of valence electrons in liquid interfacial water in time, we have investigated the timescale and molecular signatures of laser-induced liquid-gas phase transitions on a picosecond timescale.
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MEDLINE
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Soluciones
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Idioma:
En
Revista:
Faraday Discuss
Asunto de la revista:
QUIMICA
Año:
2009
Tipo del documento:
Article
País de afiliación:
Alemania