Perturbed Angular Correlation Study of the Environment of 111Cd Nuclei in Ice

A perturbed angular correlation study of ¹¹¹Cd ions in frozen aqueous solutions of InCl₃ and In(NO₃)₃ has demonstrated the variation in behavior of these systems with temperature from − 140 to − 20°C. At the lowest temperature a strong static quadrupole interaction ${\mathrm{(\omega }}_Q{\text{\hspace{0.17em}=\hspace{0.17em}1.6\hspace{0.17em}×\hspace{0.17em}10}}^7\mathrm{rad}/\sec )$ was observed. Above − 80°C, a time‐dependent perturbation was found, and the temperature dependence of the correlation time was measured.