Only atomic nuclei with I ≠ 0 are detectable by NMR spectroscopy (NMR-active nuclei, such as 1 H, 2 H, 13 C and 15 N). These NMR-active nuclei behave as tiny magnets (magnetic dipoles), capable of ...

Conclusions . This experiment demonstrated a method of utilizing 13 C and DEPT NMR spectroscopy in order to determine which of the regioisomer products 2a-d was obtained from the hydrochlorination of ...

For 13C samples, a 100% concentration will give good spectra in 1 minute and 1000 mM samples in about 5 minutes. Please be aware that the spectra for the same compound acquired at 60 MHz may look more ...

Figure 2. DEPT and 1D 13 C-NMR spectra of neat 1-butanol (4 scans) . The 1D 13 C-NMR experiment was carried out by means of four scans with a 30s repetition time. Hence, the spectrum was obtained in ...

Figure 1 shows the 1H and 13C NMR spectra, which are a 50% solution of methyl linoleate solution dissolved in CDCl3. Both these spectra were achieved and processed in under 2 minutes.

For simple 1H-NMR, NS=8 is usually sufficient, 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 ...

Two-dimensional spectra. One-dimensional 1 H and 13 C NMR spectra can provide a good amount of structural information, but it is possible to combine two-dimensional NMR spectra - specifically, the ...

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).