The identification in solution by 77Se n.m.r. spectroscopy of the novel Se4I42+ cation and the study of its equilibrium with Se6I22+ and SeI3+
Abstract
The Se4l42+ cation has been prepared by the reaction of Se42+ and iodine in SO2 solution; the 77Se n.m.r. spectrum is consistent with an I2Se+SeSeSe+I2 structure for the cation, and the equilibrium of Se4I42+ with lesser amounts of SeI3+ and Se6I22+.