Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Ochem 140B NMR Shift
| Term | Definition |
|---|---|
| Primary Alkyl, RCH3 | 0.8-1.2 ppm |
| Secondary Alkyl, RCH2R | 1.2-1.5 ppm |
| 3 Alkyl, R3CH | 1.4-1.8 ppm |
| Allylic, R2C=C-CH3 (& another R group bonded to the main C) | 1.6-1.9 ppm |
| Ketone, RC=O (CH3 bonded to main C) | 2.1-2.6 ppm |
| Benzylic, ArCH3 | 2.2-2.5 ppm |
| Acetylenic, RC=CH | 2.5-3.1 ppm |
| Ether, ROCH2R | 3.3-3.9 ppm |
| Alcohol, HOCH2R | 3.3-4.0 ppm |
| Alkyl Bromide, RCH2Br | 3.4-3.6 ppm |
| Alkyl Chloride, RCH2Cl | 3.6-3.8 ppm |
| Vinylic, R2C-CH2 | 4.6-5.0 ppm |
| Aromatic, ArH | 6.0-8.5 ppm |
| Aldehyde, RC=O (H bonded to the C) | 9.5-10.5 ppm |
| Alcohol Hydroxyl, ROH | 0.5-6.0 ppm |
| Amino, R-NH2 | 1.0-5.0 ppm |
| Phenolic, ArOH | 4.5-7.7 ppm |
| Carboxylic, RC=O (OH bonded to the C) | 10-13 ppm |
Created by:
1054015365