BRAINCAKEDeuterated Solvents
NMR spectra are usually recorded with the sample dissolved in a solvent. For 1H NMR this creates a problem: most organic solvents contain hydrogen atoms, and there is far more solvent than sample. The solvent would give huge peaks that swamp the peaks of the compound being analysed.
The solution is to use a solvent that contains no 1H atoms. Two suitable solvents are:
• Deuterated solvents, such as CDCl3. In a deuterated solvent the 1H atoms have been replaced by deuterium, D or 2H, an isotope of hydrogen with one proton and one neutron.
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More in NMR Spectroscopy
- Nuclear Magnetic Resonance
- Chemical Shift
- The TMS Standard
- 13C NMR Spectroscopy
- Interpreting 13C NMR Spectra
- 1H NMR Spectroscopy
- Integration Traces
- Spin-Spin Splitting
All 11 lessons in NMR Spectroscopy · All AQA A-level Chemistry topics