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Showing papers by "Willis B. Person published in 1990"



Journal ArticleDOI
TL;DR: In this paper, the infrared spectra of 5-fluorocytosine (5FC), 5-branched cyclosines (5IC) and 5-bromocytotosine(5BrC) were analyzed in an argon matrix at 15 K (h/o) and the difference in the energies of the amino-oxo and aminooxo tautomers were estimated.

53 citations


Journal ArticleDOI
TL;DR: In this article, the structures and stabilization energies of guanine-cytosine and adenine-thymine base pairs were studied using a combined quantum-mechanical approach, an ab initio calculation for relative stabilities of the isolated tautomers together with a calculation of intermolecular interaction energies using a multipolar expansion method developed by Claverie and co-workers.

20 citations


Journal ArticleDOI
TL;DR: In this paper, the rotational contributions of the mass-weighted squared effective charges (MWEED) to the infrared intensity of water molecules were analyzed in Cartesian coordinates.

12 citations