title: [Investigation of tautomeric composition of cytosine by multiphoton excitation spectra. II. Two-photon absorption spectra].
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.
authors.forename: T G
authors.initials: TG
authors.lastname: Burova
authors.forename: M N
authors.initials: MN
authors.lastname: Nurlygaianova
authors.forename: G N
authors.initials: GN
authors.lastname: Ten
mesh_terms: D015502:Absorptiometry, Photon; D003596:Cytosine / Q000737:chemistry*; D007536:Isomerism
chemical_list: D003596:Cytosine