Por favor, use este identificador para citar o enlazar este ítem: http://repositoriodigital.ipn.mx/handle/123456789/10632
Título : Resonance Raman De-enhancement Caused by Excited State Mixed Valence
Palabras clave : Resonance Raman
Absorption
Fecha de publicación : 16-ene-2013
Editorial : Journal of Physical Chemistry A
Descripción : Resonance Raman and absorption spectra of 9,10-bis(2-tert-butyl-2,3-diazabicyclo[2.2.2]oct-3-yl)-anthracene (2) are measured and analyzed. The contribution of the individual vibrational normal modes to the reorganization energy is investigated. Excited-state mixed valence in this system is analyzed using density functional theory electronic structure calculations. The resonance Raman excitation profiles exhibit a resonance de-enhancement effect around 20 725 cm-1, but a corresponding feature is not observed in the absorption spectrum. This unusual observation is attributed to the presence of a dipole-forbidden, vibronically allowed component of the split mixed valence excited state. The de-enhancement dip is calculated quantitatively and explained in terms of the real and imaginary components of the polarizabilities of the two overlapping excited states.
URI : http://www.repositoriodigital.ipn.mx/handle/123456789/10632
Otros identificadores : 1089-5639
http://hdl.handle.net/123456789/108
Aparece en las colecciones: Doctorado

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