Femtochemistry of Intramolecular Charge and Proton Transfer Reactions in Solution

Journal Article · Thu Mar 17 00:00:00 EST 2005 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.1896490· OSTI ID:20630776

Douhal, Abderrazzak; Sanz, Mikel; Carranza, Maria Angeles; Organero, Juan Angel; Tormo, Laura ^[1]

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1. Departamento de Quimica Fisica, Seccion de Quimicas, Facultad de Ciencias del Medio Ambiente, Universidad de Castilla-La Mancha, Avda. Carlos III, S.N., 45071, Toledo (Spain)

We report on the first observation of ultrafast intramolecular charge- and proton-transfer reactions in 4'-dimethylaminoflavonol (DAMF) in solution. Upon femtosecond excitation of a non-planar structure of DMAF in apolar medium, the intramolecular charge transfer (ICT) does not occur, and a slow (2 ps) proton motion takes place. However, in polar solvents, the ICT is very fast (100-200 fs) and the produced structure is stabilized that proton motion takes place in few or tens of ps.

• OSTI ID: 20630776
• Journal Information: AIP Conference Proceedings, Vol. 748, Issue 1; Conference: MTPR-04: 1. international conference on modern trends in physics research, Cairo (Egypt), 4-9 Apr 2004; Other Information: DOI: 10.1063/1.1896490; (c) 2005 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
CHARGE EXCHANGE
EXCITATION
ORGANIC COMPOUNDS
PROTONS
SOLUTIONS
SOLVENTS
TRANSFER REACTIONS