Abstract
Pure quadrupole resonances of bromine or iodine nuclei have been observed in paradibromo‐ and paradiiodo‐benzene; the tetrabromides of carbon,silicon,germanium and tin;germanium and tin tetraiodides; sodium,potassium, and cesium bromates; antimony tribromide and iodide; and cyanogen bromide. For most of these compounds, measurements were made at room temperature and at liquid nitrogen temperature. The results are correlated with chemical bonding and crystal structure data.