Nmr practice quiz

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1H NMR Practice Problems Dr. Peter Norris Youngstown State University The following exercises are designed to help you become familiar with predicting 1the H NMR spectra of simple organic molecules. For each example you should find the number of signals you expect, where they should show on the scale (chemical shift), and what shape they should

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NMR can be run for any nucleus that has non-zero spin, so conveniently for organic chemists, NMR works for carbon AND hydrogen because they both have a ‘spin active’ isotope. NMR for carbon detects the minor isotope 1 3 C ^{13}C 1 3 C , or carbon-13, which is spin active (I = 1 / 2 \scriptsize1/2 1 / 2 ) As you gain more skill at interpreting NMR data, you may find that just a portion of the data is sufficient to determine a compound’s identity. At other times, however, you will find that more data are necessary than solely a 1 H NMR spectrum. Combined analysis of 13 C NMR, IR, and other information may be needed, for example. In the above ...