Darstellung und Kristallstruktur von RbSb3Se5

Preparation and Crystal Structure of RbSb₃Se₅ RbSb₃Se₅ was prepared by methanolothermal reaction of Rb₂CO₃ with Sb₂Se₃ at a temperature of 175°C. An X-ray structural analysis demonstrated that the compound contains polyselenoantimonate(III) anions (Sb₃Se₅^?)_n. A ψ-tetrahedral coordination is observed for one of the independent Sb atoms, a ψ-trigonal bipyramidal coordination for the other two. The Sb? Se polyhedra are linked through joint edges into sheets.