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The selection rule for NMR (Nuclear Magnetic Resonance) is that nuclei with a non-zero nuclear spin (e.g., 1/2, 3/2) can be observed. Nuclei with an even number of protons and neutrons have a non-zero spin, making NMR suitable for elements such as hydrogen (1H) and carbon (13C). Additionally, the nucleus must have an odd number of protons or neutrons for its spin state to be observable through NMR spectroscopy.

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What is the difference between NMR and FT- NMR instrumentation?

NMR (Nuclear Magnetic Resonance) spectroscopy measures the absorption of electromagnetic radiation by nuclei in a magnetic field, providing structural and chemical information about molecules. FT-NMR (Fourier Transform-NMR) is a technique that enhances the speed and sensitivity of NMR by using Fourier transformation to convert the time-domain signal into a frequency-domain spectrum, allowing for higher resolution and improved signal-to-noise ratio. Essentially, FT-NMR is a more advanced and efficient method of performing NMR spectroscopy.


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