Mode-selective promotion and isotope effects of concerted double-hydrogen tunneling in porphycene embedded in superfluid helium nanodroplets.
Chemphyschem
; 10(5): 761-5, 2009 Mar 23.
Article
em En
| MEDLINE
| ID: mdl-19229893
ABSTRACT
Intramolecular double-hydrogen tunneling in porphycene (see picture) is investigated. Low-temperature conditions are ensured by doping of single molecules into superfluid helium nanodroplets. The investigation of fluorescence excitation and dispersed emission spectra and the highly dissipative environment allows the observation of mode-selective tunneling splitting and reveals a purely concerted tunneling mechanism for all isotopic variants of porphycene.
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Coleções:
01-internacional
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MEDLINE
Idioma:
En
Ano de publicação:
2009
Tipo de documento:
Article