Abstract

The ammoniates Li(NH3)4RbSe3 and Na(NH3)5RbSe3 · 3NH3 were prepared by the reduction of Rb2Se5 with lithium or sodium in liquid ammonia. Single crystals were isolated and characterized by X-ray structure analysis using low temperature techniques. Both compounds contain triselenide anions Se32−, which coordinate to rubidium cations forming 1∞[RbSe3]− or 1∞[Rb(NH3)2Se3]− chains. The chains are separated in the crystal structures by the homoleptic ammine complexes Li(NH3)4+ and Na(NH3)5+.

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