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A theoretical study of tautomerism in the gas phase and aqueous solution: a combined use of state-of-the-art ab initio quantum mechanics and free energy-perturbation methods

✍ Scribed by Cieplak, Piotr; Bash, Paul; Singh, U. Chandra; Kollman, Peter A.


Book ID
121872066
Publisher
American Chemical Society
Year
1987
Tongue
English
Weight
859 KB
Volume
109
Category
Article
ISSN
0002-7863

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Azaguanine: A Theoretical Study of Its T
✍ J.Guillermo Contreras; Sandra T. Madariaga πŸ“‚ Article πŸ“… 1998 πŸ› Elsevier Science 🌐 English βš– 177 KB

The tautomerism and protonation of 8-azaguanine (azaG) have been studied by means of ab initio methods, both in the gas phase and in aqueous solution. An elimination procedure to choose the most stable tautomeric forms, based on AM1 and HF/6-31G\* energies, has been applied. Tautomers azaG(1,9), aza