What Are the Relative Intensities of the Components of NMR Spectral Multiplets from Quadrupolar Nuclei in Uniformly Anisotropic Media?

Figure 5

Simulated NMR spectrum of a solute containing the quadrupolar nucleus ²H (I = 1) dissolved in an anisotropic environment, such as a stretched hydrogel. The splitting between the peaks can be controlled and is a function of the anisotropy, i.e., the extent of stretching the hydrogel. In this case, the splitting between the peaks is 360 Hz, which corresponds to a RQC constant of  Hz. The ratio of the relative peak intensities is: 2 : 2 (1 : 1). The NMR spectrum was simulated by using SpinDynamica [39]. Lorentzian line broadening (full-width at half-maximum height = 40 Hz) was used in the simulation.