Über die Alkaliselenoarsenate(III) KAsSe3 · H2O,RbAsSe3 · 1/2 H2O und CsAsSe3 · 1/2 H2O |
| |
Authors: | W S Sheldrick J Kaub |
| |
Abstract: | On the Alkali Selenoarsenates(III) KAsSe3 · H2O, RbAsSe3 · 1/2 H2O, and CsAsSe3 · 1/2 H2O The alkali selenoarsenates(III) KAsSe3 · H2O, RbAsSe3 · 1/2 H2O, and CsAsSe3 · 1/2 H2O have been prepared by hydrothermal reaction of the respective alkali carbonate with As2Se3 at a temperature of 135°C. Their X-ray structural analyses demonstrated that the compounds contain polyselenoarsenate(III) anions (AsSe3?)n, in wich the basic units are ψ-AsSe3 tetrahedra, which are linked together through Se? Se bonds into infinite zweier single chains. The Rb and Cs salts are isotypic. |
| |
Keywords: | |
|
|