UV photoelectron spectra of 5- and 6-azauracil |
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Authors: | David Ajó Maurizio Casarin Gaetano Granozzi Ignazio Fragalá |
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Affiliation: | Istituto di Chimica e Tecnologia dei Radioelementi del CNR, Padova, Italy;Istituto dt Chimica Generale ed Inorganica, Universitá di Padova, Padova, Italy;Istituto Dipartimentale di Chimica e Chimica Industriale, Catania, Italy |
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Abstract: | The He(I) photoelectron spectra of 5-azauracil (1,3,5-triazine-2,4(1H,3H)-dione) and 6-azauracil (1,2,4-triazine-3, 5(2H,4H)-dione) are presented. The spectra are assigned by using INDO/S calculations and comparison arguments with uracil. The first ionization energy in the title compounds is higher than in the usual nucleic acid bases. |
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Keywords: | Present address: Physikalisch-Chemisches Institut Universität Basel CH-4056 Basel Switzerland. |
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