The Analysis of First-Order Coupling Patterns in NMR Spectra

• Brian E. Mann ^[1]
  1. [1] University of Sheffield

     University of Sheffield

     Reino Unido

     
• Localización: Journal of chemical education, ISSN 0021-9584, Vol. 72, Nº 7 (July), 1995, págs. 614-615
• Idioma: inglés
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• Resumen

  • Many students find the analysis of non-overlapping first-order coupling patterns in NMR spectra difficult. To a large extent, this is a result of the way that they are presented in NMR texts. The student is presented with a singlet that is then progressively split into multiplets to give the desired coupling pattern. In order to interpret a real spectrum, the student needs to interpret each multiplet and frequently tries to do this as taught by starting with a singlet and thinking of how to construct the multiplet. This is a very difficult task for any but the simplest of multiplets. The analysis of any well resolved first-order multiplet is actually a trivial exercise. There are some very simple rules that make the analysis a simple exercise.