Mechanism of the keto-enol tautomerism in radical cations and gas-phase closed-shell systemschemical equilibria, complexation equilibriaintermediates (and their reactionsNo abstract is available for this article.doi:10.1002/chin.198010061SPLITTER J. S....
Thermodynamic Investigation of Enol?Keto Tautomerism for Alcohol Sensors Based on Carbon Nanotubes as Chemical Sensors Thermodynamic Investigation of Enol↔Keto Tautomerism for AlcoholSensors Based on Carbon Nanotubes as Chemical Sensors. Fullerenes, Nanotubes Carbon Nanostructures... M.,Monajjemi,L.,.....
Guanine and 9-methylguanine monomers and their keto—enol tautomerism Infrared absorption spectra have been studied for matrix isolated guanine and 9-methylguanine, which is a formal analogue of the natural nucleoside found i... K Szczepaniak,M Szczesniak - 《Cheminform》 被引量: 584发表: 1987年 ...
1.Keto-enol tautomerism is the most common tautomery phenomenon. Keto -enol themselves are the real chemical substance. 酮及烯醇互变是互变作用最普通的现象,它们都是真实的化学实体。 2.At last , we used the base: LDA, dry ice-acetone bath , to synthesize the enol phosphates and gain very ...
The equilibrium constant for keto–enol tautomerism of 2-phenylacetylthiophene (2PAT) KT = [enol]/[ketone] has been determined as 3.55 × 10–7 (pKT 6.45) by combining rate constants for enolisation and ketonisation. The pKaKH for ionisation of 2PAT has been measured spectrophotometrically...
All the molecular structures of the dithioanalogues of malondialdehyde and acetylacetone were fully optimized by the AM1 method in order to study the thioketo–enethiol tautomerism and to evaluate the hydrogen-bond strength. Whilst the h... G Buemi - 《Journal of the Chemical Society Faraday Tr...
Study of Mechanism Keto-Enol Tautomerism (isomeric reaction) structure Cyclohexanone by using DFT Method with NBO AnalysisReza Soleymani
Quantum mechanical calculations have shown the barrier to intramolecular rearrangement in the keto-enol tautomerism to be prohibitively high. Instead, the 1-3 proton shift is seen to proceed much more economically via intermolecular pathways, notably via acid and base catalysis. The reaction profiles ...
Initial quantum mechanic studies and density function theory (DFT) in the level of HF/6-311+G**, B3LYP/3-21+G* and B3LYP/6-311+G** on Keto-Enol Tautomerism (isomeric reaction) cyclohexanone structure, that results shows that activation energy for this reaction equal 64.6143(kcal.mol) and...
Liang X, Zheng W, Wong NB, Shu Y, Tian A (2005) Solvent- assisted catalysis mechanism on Keto-enol tautomerism of cya- meluric acid. J Mol Struct THEOCHEM 732(1-3):127-137. doi:10.1016/j.theochem.2005.05.009X. Q. Liang,W. X. Zheng,N. B. Wong,Y. J. Shu,A. M. Tian....