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Title Relaxation Processes from the Highly Excited States in the Molecular Systems Based on the Methylene Blue
Authors Kondratenko, P.O.
Sakun, T.M.
Lopatkin, Yurii Mykhailovych  
ORCID http://orcid.org/0000-0001-8913-2816
Keywords Dye methylene blue
Highly excited state
The relaxation of excitation
Photodissociation
Electron phototransfer
Leuco form of dye
Type Article
Date of Issue 2012
URI http://essuir.sumdu.edu.ua/handle/123456789/30284
Publisher Сумський державний університет
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Citation P.O. Kondratenko, T.M. Sakun, Yu.M. Lopatkin, J. Nano- Electron. Phys. 4 No 4, 04022 (2012)
Abstract The theoretical and experimental studies of relaxation of the methylene blue molecules (MB) out of the highly excited states have allowed to show the existence of nonbinding potential surfaces, which correspond to excited σσS* and σσN* states, which leads to bond dissociation S-C and N-C, localized in the vicinity of the symmetry axis of the MB molecule; the electron transfer from the highly excited σσS*-state of MB on the matrix causes the appearance of dication MBNH2 + typical for acidified (pH < 1) aqueous solutions of MB; two-quantum excitation of MB by light with hν < E(σσS*) leads to phototransfer electron and hydrogen atom from matrix onto MB and the formation of the leuco form of dye MBNH. When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/30284
Appears in Collections: Журнал нано- та електронної фізики (Journal of nano- and electronic physics)

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