Eintrag weiter verarbeiten
Nuclear Magnetic Resonance Spectroscopy. Ring-Current Effects on Carbon-13 Chemical Shifts
Gespeichert in:
| Zeitschriftentitel: | Proceedings of the National Academy of Sciences |
|---|---|
| Personen und Körperschaften: | , |
| In: | Proceedings of the National Academy of Sciences, 71, 1974, 8, S. 2961-2964 |
| Format: | E-Article |
| Sprache: | Englisch |
| veröffentlicht: |
Proceedings of the National Academy of Sciences
|
| Schlagwörter: |
| Zusammenfassung: | <jats:p> A comparison of the <jats:sup>13</jats:sup> C nuclear magnetic resonance chemical shifts of some 15,16-dialkyl-15,16-dihydropyrenes with the corresponding 15,16-dialkyl-2,7,15,16-tetrahydropyrenes provides a measure of the effect of ring current on carbon-13 chemical shifts in which other effects may be expected to be negligibly small. The general conclusion is that the absolute magnitude of the ring-current effect is the same for carbon-13 as for protons when they occupy the same position in space relative to the aromatic π-electron cloud. </jats:p> |
|---|---|
| Umfang: | 2961-2964 |
| ISSN: |
0027-8424
1091-6490 |
| DOI: | 10.1073/pnas.71.8.2961 |