ABSTRACT
Nuclear magnetic resonance (NMR) spectroscopy provides information on the chemical environment of the nuclei in a molecule. Many atomic nuclei possess spin angular momentum which is quantified by a nuclear spin quantum number, I. The nuclear spin angular momentum may take 2I+1 different orientations relative to an arbitrary axis in space, each of which is distinguished by values of the quantum number, mI,
mI=I, (I−1),…, −I
The nuclear spin angular momentum quantum number can have a range of both integral and half-integral values, as well as zero. Values for some common nuclei are shown in Table 1.
