Which of the most commonly found elements in organic molecules are suitable for NMR?

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Which of the most commonly found elements in organic molecules are suitable for NMR?

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Answer 1 · 2015-07-02T14:54:47

The most common isotopes used for NMR are $""^1"H"$ and $""^13"C"$ .

Explanation:

We have to talk about isotopes rather than elements, because an isotope must have a non-zero nuclear spin to be detected by NMR.

That's why $""^12"C"$ does not give an NMR signal — its nuclear spin is zero.

Isotopes such as $""^14"N"$ , $""^15"N"$ , $""^17"O"$ , $""^19"F"$ , $""^31"P"$ , and $""^ 35"Cl"$ are also important in NMR, because these elements are often found in biological and pharmaceutical compounds.

Other nuclei that are used in NMR are $""^2"H"$ , $""^6"Li"$ , $""^10"B"$ , $""^11"B"$ , $""^23"Na"$ , $""^29"Si"$ , $""^113"Cd"$ , $""^129"Xe"$ , and $""^195"Pt"$ .

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Which of the most commonly found elements in organic molecules are suitable for NMR?

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