Hydrogen bonding in push-pull 5-substituted-2-alkylidene-4-oxothiazolidines: 1H-MNR spectroscopic study
| Autor: | Rade Marković, Ata Shirazi, Marija Baranac, D Zdravko Dzambaski, M Dragica Minic-Popovic |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2003 |
| Předmět: |
1h nmr spectroscopy
010405 organic chemistry Chemistry Hydrogen bond Intermolecular force Concentration effect General Chemistry 010402 general chemistry Photochemistry hydrogen bonding 01 natural sciences 0104 chemical sciences 3. Good health lcsh:Chemistry Crystallography push-pull alkenes 1h-nmr spectroscopy lcsh:QD1-999 Solvent polarity Polar Spectroscopy Push pull |
| Zdroj: | Journal of the Serbian Chemical Society, Vol 68, Iss 1, Pp 1-7 (2003) |
| ISSN: | 1820-7421 0352-5139 |
| Popis: | Application of dynamic 1H-NMR spectroscopy added to the understanding of the hydrogen bonds existing in the structurally related 5-substituted-2-alkylidene-4-oxothiazolidines in polar and apolar solvents. The equilibrated mixtures of these typical push-pull alkenes in CDCl3 consist of the intramolecularly H-bonded (E)-isomer and intermolecularly H-bonded (Z)-isomer in varying proportions which depend on the solvent polarity. For the representative of the series (Z)-2-(5-ethoxycarbonylmethyl-4-oxothiazolidin-2-ylidene)-1-phenylethanone a concentration effect on the degree of intermolecular hydrogen bonding in apolar CDCl3 has been studied. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|