Photochemistry of 3-hydroxyflavone inside superfluid helium nanodroplets

Journal Article · Sat Nov 21 00:00:00 EST 2009 · Journal of Chemical Physics

DOI:https://doi.org/10.1063/1.3262707· OSTI ID:21559805

Lehnig, R; Pentlehner, D; Vdovin, A; Dick, B; Slenczka, A ^[1]

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1. Institut fuer Physikalische und Theoretische Chemie Universitaet Regensburg, Regensburg 93040 (Germany)

3-hydroxyflavone is a prototype system for excited state intramolecular proton transfer which is one step of a closed loop photocycle. It was intensively studied for the bare molecule and for the influence of solvents. In the present paper this photocycle is investigated for 3-hydroxyflavone and some hydrated complexes when doped into superfluid helium droplets by the combined measurement of fluorescence excitation spectra and dispersed emission spectra. Significant discrepancies in the proton transfer behavior to gas phase experiments provide evidence for the presence of different complex configurations of the hydrated complexes in helium droplets. Moreover, for bare 3-hydroxyflavone and its hydrated complexes the proton transfer appears to be promoted by the helium environment.

• OSTI ID: 21559805
• Journal Information: Journal of Chemical Physics, Vol. 131, Issue 19; Other Information: DOI: 10.1063/1.3262707; (c) 2009 American Institute of Physics; ISSN 0021-9606
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
COMPLEXES
DOPED MATERIALS
DROPLETS
EMISSION SPECTRA
ENVIRONMENT
EXCITATION
EXCITED STATES
FLUORESCENCE
HELIUM
ORGANIC COMPOUNDS
PHOTOCHEMISTRY
PROTONS
SOLVENTS
SUPERFLUIDITY
BARYONS
CHEMISTRY
ELEMENTARY PARTICLES
ELEMENTS
EMISSION
ENERGY LEVELS
ENERGY-LEVEL TRANSITIONS
FERMIONS
FLUIDS
GASES
HADRONS
LUMINESCENCE
MATERIALS
NONMETALS
NUCLEONS
PARTICLES
PHOTON EMISSION
RARE GASES
SPECTRA