It is directly proportional to the strength of the applied magnetic field and
depends on the type of nucleus and its environment, such as the chemical bonding and molecular structure.
The NMR frequency is measured in megahertz (MHz) or kilohertz (kHz) and is given by the equation:
ν = γ × B0
Where:
ν is the NMR frequency
γ is the gyromagnetic ratio of the nucleus (a constant specific to each nucleus)
B0 is the strength of the applied magnetic field
In an NMR experiment, the NMR frequency is used to excite nuclear spins and detect their resonance signals. By correlating the NMR frequencies of different nuclei, chemists can obtain information about the chemical structure and properties of molecules. It is a powerful tool for analyzing and identifying organic compounds.
