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Phys. Rev. Lett. 89, 213404 (2002) [4 pages]

Observation and Theoretical Description of Periodic Geometric Rearrangement in Electronically Excited Nonstoichiometric Sodium-Fluoride Clusters

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Štefan Vajda*, Cosmin Lupulescu, Andrea Merli, Filip Budzyn, and Ludger Wöste
Freie-Universität Berlin, Fachbereich Physik, Arnimallee 14, 14195 Berlin, Germany

Michael Hartmann, Jiří Pittner†, and Vlasta Bonačić-Koutecký
Humboldt-Universität zu Berlin, Institut für Chemie, Brook-Taylor-Strasse 2, D-12489 Berlin, Germany

Received 3 June 2002; published 4 November 2002

We present two-color fs pump-probe spectra of Na2F which were recorded by employing excitation wavelengths around 1208 nm (pump) and ionization wavelengths around 405 nm (probe). The observed oscillatory structure of the signal with a period of 185 fs shows an excellent agreement with our simulated spectra. The employed ab initio Wigner distribution approach provides clear evidence that this observation is caused by photoinduced metal bond breaking followed by a butterfly-type periodic geometric rearrangement.

© 2002 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.89.213404
DOI:
10.1103/PhysRevLett.89.213404
PACS:
36.40.Vz, 33.80.–b, 36.40.Mr

*Present address: Argonne National Laboratory, Chemistry Division, 9700 South Cass Avenue, Argonne, IL 60439.

†Permanent address: J. Heyrovský Institute of Physical Chemistry, Academy of Sciences of the Czech Republic, Dolejškova 3, CZ-18223 Prague, Czech Republic.

 
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