On the mechanism of proton transfer in the 2-hydroxypyridine α 2-pyridone tautomeric equilibrium
✍ Scribed by Martin J. Scanlan; Ian H. Hillier
- Publisher
- Elsevier Science
- Year
- 1984
- Tongue
- English
- Weight
- 234 KB
- Volume
- 107
- Category
- Article
- ISSN
- 0009-2614
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✦ Synopsis
The saddle point for the proton transfer invohred in the equilibrium 2-hydroxypyridine = 2-pyridone has been calculated in it 3-21G basis to be 206 kJ mol-* above the hctim form, for a unimo!ecular mechanism. This barrier is estimated to be rc-du=d to 46 kJ mol-l in the self-associated dimer.
📜 SIMILAR VOLUMES
The excited-state isomerization of 2-hydroxypyridine to 2( lH)-pyridone is considered as a model for UV photo-induced intramolecular hydrogen (or proton) transfer in systems without an intramolecular hydrogen bond. The potential energy functions of the electronic ground as well as of the lowest nn'
## Abstract The intermolecular double proton transfer in dimers of uracil and 2‐thiouracil is studied through density functional theory calculations. The reaction force framework provides the basis for characterizing the mechanism that in all cases has been associated to a dynamic balance between p
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