X-Ray Diffraction Studies of Aqueous Solutions of Cadmium Perchlorate and Sodium Tetraiodocadmate

Abstract

Abstract X-Ray diffraction measurements were carried out for aqueous solutions of cadmium perchlorate and sodium tetraiodocadmate. X-Ray scattering data showed that the hydrated Cd2+ ion is coordinated to six water molecules, the distance between Cd2+ and H2O being 2.31±0.02 Å, and that the CdI42− complex has a tetrahedral configuration with a Cd–I distance of 2.79±0.01 Å. The tetrahedral structure of the CdI42− complex was confirmed by Raman spectroscopy.