Basic 1h- And 13c-nmr Spectroscopy May 2026

: Nuclei with an odd number of protons or neutrons (like ) behave like tiny magnets.

: In a strong external magnetic field, these nuclei align either with ( state ) or against ( state ) the field. Basic 1H- and 13C-NMR Spectroscopy

: Applying radiofrequency (RF) energy causes nuclei to "flip" between these states. The energy required depends on the electronic environment surrounding the nucleus, a phenomenon known as shielding . : Nuclei with an odd number of protons

: After excitation, nuclei return to their base state, emitting signals that are detected and processed into a spectrum. Comparison: NMR Basic 1H- and 13C-NMR Spectroscopy nuclei return to their base state