Effects of Crystalline Defects on Pure Quadrupole Resonances

Abstract

The line width and second moment of the Cl³⁵ pure quadrupole line have been measured as functions of x‐irradiation time and inhomogeneous compression in sodium chlorate, potassium chlorate, and p‐dichlorobenzene. The effect of the addition of p‐dibromobenzene to p‐dichlorobenzene has also been studied. In all cases an increase in the line width and second moment was observed, and in a few cases, a decrease in the integrated intensity was found. Several broadening mechanisms have been considered in detail, and it has been concluded that strain broadening is probably the predominant mechanism in all cases.