Femtochemistry of intramolecular charge and proton transfer reactions in solution
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Douhal, A
[1
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Sanz, M
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Univ Castilla La Mancha, Fac Ciencias Medio Ambiente, Secc Quim, Dept Quim Fis, Toledo 45071, SpainUniv Castilla La Mancha, Fac Ciencias Medio Ambiente, Secc Quim, Dept Quim Fis, Toledo 45071, Spain
Sanz, M
[1
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Carranza, M
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Univ Castilla La Mancha, Fac Ciencias Medio Ambiente, Secc Quim, Dept Quim Fis, Toledo 45071, SpainUniv Castilla La Mancha, Fac Ciencias Medio Ambiente, Secc Quim, Dept Quim Fis, Toledo 45071, Spain
Carranza, M
[1
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Organero, JA
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Univ Castilla La Mancha, Fac Ciencias Medio Ambiente, Secc Quim, Dept Quim Fis, Toledo 45071, SpainUniv Castilla La Mancha, Fac Ciencias Medio Ambiente, Secc Quim, Dept Quim Fis, Toledo 45071, Spain
Organero, JA
[1
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Tormo, L
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Univ Castilla La Mancha, Fac Ciencias Medio Ambiente, Secc Quim, Dept Quim Fis, Toledo 45071, SpainUniv Castilla La Mancha, Fac Ciencias Medio Ambiente, Secc Quim, Dept Quim Fis, Toledo 45071, Spain
Tormo, L
[1
]
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[1] Univ Castilla La Mancha, Fac Ciencias Medio Ambiente, Secc Quim, Dept Quim Fis, Toledo 45071, Spain
来源:
Modern Trends in Physics Research
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2005年
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748卷
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O4 [物理学];
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0702 ;
摘要:
We report on the first observation of ultrafast intramolecular charge- and proton-transfer reactions in 4'-dimethylanunoflavonol (DAME) 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.