The chemical shifts (d) of solvent signals observed for 1 H NMR and 13 C NMR spectra are listed in the following table. The multiplicity is shown in parentheses as 1 for singlet, 2 for doublet, 3 for ...

and for 13C-NMR, NS=128, for small concentrated chemicals. 16. pulsecal<enter> to calibrate the 90 Degree pulse length. This can be considered optional for a simple proton spectrum, but is important ...

Common NMR active nuclei are 1H, 13C, 31P, 15N, 29Si, and many more. Nearly every element has at least one isotope that is NMR active. Since then, NMR spectroscopy has become an indespensible tool for ...

A frequently documented NMR spectrum is the 1D 13 C carbon spectrum, which is less sensitive than the 1 H spectrum. Proton decoupling during the FID acquisition can boost its sensitivity (Figure 1).