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Survey of the Proton Affinities of Adenine, Cytosine, Thymine and Uracil Dideoxyribonucleosides, Deoxyribonucleosides and Ribonucleosides by Angelo Liguori; Anna Napoli; Giovanni Sindona is a Chemistry article available to read on EtoBox.

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The kinetic method was applied to the determination of the proton affinities (PAs) of modified deoxy-and dideoxyribonucleosides. A correlation between the measured PAs and the replacement of one of the three hydroxyl groups of the ribose unit is presented. A PA scale was obtained which shows that the replacement of the primary or of one or both secondary hydroxyl groups of a ribonucleoside with a hydrogen atom induces the lowering or the enhancement of the nucleoside PA, respectively. The scale extends over a very narrow range of ∼2 kcal mol -1 , thus demonstrating the sensitivity of the kinetic method in the evaluation of small differences in thermodynamic parameters.

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Author

Angelo Liguori; Anna Napoli; Giovanni Sindona

Publisher

John Wiley and Sons; Wiley (John Wiley & Sons); Wiley-Blackwell; Wiley-Liss Inc; John Wiley & Sons Inc.; Wiley; Heyden And Son (ISSN 1076-5174)

Published

2000

Language

EN

Field

Chemistry (Physical Sciences)