BRAINCAKE13C NMR Spectroscopy
13C NMR spectroscopy gives information about the carbon skeleton of a molecule. Only about 1% of carbon atoms are 13C, but modern spectrometers are sensitive enough to detect them.
Each peak on a 13C spectrum represents one carbon environment. So the number of peaks equals the number of different carbon environments in the molecule.
Carbon atoms are in the same environment (equivalent) if they are bonded to exactly the same atoms and groups, which is often shown by a line of symmetry in the molecule. Equivalent carbons give a single peak.
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More in NMR Spectroscopy
- Nuclear Magnetic Resonance
- Chemical Shift
- The TMS Standard
- Deuterated Solvents
- Interpreting 13C NMR Spectra
- 1H NMR Spectroscopy
- Relative Peak Areas
- Spin-Spin Splitting
All 12 lessons in NMR Spectroscopy · All OCR A-level Organic Chemistry topics