Proton NMR Spectroscopy (A-level IB Chemistry)

Outlining H NMR spectroscopy. How proton NMR spectroscopy works and its use in analysing organic molecules is shown, with examples given including methanol, propane and propan-1-ol. The use of tetramethylsilane (TMS) as an organic solvent for NMR and the use of chemical shift ppm data is linked to the theory behind NMR spectroscopy. Deuterated solvents, such as CDCl3 and heavy water (D2O) are shown, including the missing peaks for OH and NH bond environments when samples are mixed with D2O.

For AQA, OCR (A), Edexcel and CIE.

Data table NMR values used and shown are taken from AQA data booklet (7405).

Hydrogen Environments: 01:21
Hydrogen-1 and Spin: 03:23
Resonance: 05:20
Tetramethylsilane (TMS) Standard: 07:41
Chemical Shift (ppm) and Spectras: 08:39
Example - Methanol: 09:40
Deuterated Solvents: 11:20
Integration Ratios: 12:51
Example - Propane: 13:12
Data Tables: 14:23
Example - Propan-1-ol: 15:19
Summary: 17:37

NMR Examples in the video:
Methanol (Peak location): 09:40
Propane (Integration Ratios): 13:12
Propan-1-ol (Full spectra): 15:19

Peak Splitting (High Resolution H-NMR) -

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[VictorWang-mm]

Hey, just wanted to say you are amazing! I looked through all the other related videos and none of them explained why shielding/anti-shielding requires less/more radio frequency to flip the spin of the nucleus! Thank you so much!

[adamknight]

Why is it that the H1 peak in Propanol has a lower shift ( despite being directly attached to the oxygen) than the H2 peaks which attached to a carbon?

[louisWT]

Hi, the frequencys change ? cus we have been told that the f is constant but the magnetic field varies??