Long-range deuterium isotope effects on13C NMR shifts of intramolecularly hydrogen-bonded 9-hydroxyphenalen-1-ones
| Autor: | Ulf Edlund, Carin Engdahl, Adolf Gogoll |
|---|---|
| Rok vydání: | 1991 |
| Předmět: |
Deuterium NMR
Chloroform Stereochemistry General Chemistry Nuclear magnetic resonance spectroscopy Carbon-13 NMR chemistry.chemical_compound chemistry Deuterium Kinetic isotope effect Physical chemistry General Materials Science Solvent effects Two-dimensional nuclear magnetic resonance spectroscopy |
| Zdroj: | Magnetic Resonance in Chemistry. 29:54-62 |
| ISSN: | 1097-458X 0749-1581 |
| DOI: | 10.1002/mrc.1260290112 |
| Popis: | The 1H and 13C NMR spectra of 9-hydroxyphenalenone (1) and 9-hydroxy-2-methylphenalenone (2) have been completely assigned. Primary and secondary deuterium isotope effects were determined in three solvents (chloroform, acetone and dimethyl sulphoxide), including the effect of temperature on the secondary isotope effects. Both negative and large long-range secondary isotope effects were found for both 1 and 2. The average secondary isotope effects for corresponding carbons follow the same sign and magnitude pattern in both compounds. |
| Databáze: | OpenAIRE |
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