Investigation of tautomeric composition of cytosine by multiphoton excitation spectra. II. Two-photon absorption spectra |
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Authors: | T G Burova M N Nurlygaianova G N Ten |
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Institution: | 1. Saratov State University, Saratov, 410026, Russia
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Abstract: | For the first time the quantum-mechanical calculations of intensity distribution in the two-photon absorption spectra of the six tautomeric forms of cytosine were performed. It has been confirmed that in the aqueous solution of cytosine (pH 3.0) there exist several tauromeric forms: canonical amino-oxo tautomeric form, cation, as well as cys-imino-oxo and cys-amino-hydroxy tautomers. |
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