Abstract
The crystal structure of the title compound, [Rb(C12H24O6)]3[Sb7]·4NH3, fills the gap between the already known Zintl anion ammoniates {[Cs(18-crown-6)]3Sb7}2·9NH3 [Wiesler (2007 ▶). Dissertation, Universität Regensburg, Germany] and [K(18-crown-6)]3Sb7·4NH3 [Hanauer (2007 ▶). Dissertation, Universität Regensburg, Germany]. As in the two known compounds, the antimony cage anion in this crystal structure is coordinated by three alkali cations. The coordination spheres of each of the cations are saturated by 18-crown-6 molecules. The ammonia molecules of crystallization are situated between the crown ethers. The neutral, molecular [Rb(18-crown-6)]3Sb7 units are interconnected by multiple dipole–dipole interactions between ammonia and 18-crown-6.
Highlights
The crystal structure of the title compound, [Rb(C12H24O6)]3[Sb7]4NH3, fills the gap between the already known Zintl anion ammoniates {[Cs(18-crown-6)]3Sb7}29NH3 [Wiesler (2007)
As in the two known compounds, the antimony cage anion in this crystal structure is coordinated by three alkali cations
The ammonia molecules of crystallization are situated between the crown ethers
Summary
The crystal structure of the title compound, [Rb(C12H24O6)]3[Sb7]4NH3, fills the gap between the already known Zintl anion ammoniates {[Cs(18-crown-6)]3Sb7}29NH3 [Wiesler (2007). Dissertation, Universität Regensburg, Germany] and [K(18-crown-6)]3Sb74NH3 [Hanauer (2007). As in the two known compounds, the antimony cage anion in this crystal structure is coordinated by three alkali cations. The coordination spheres of each of the cations are saturated by 18-crown-6 molecules. The ammonia molecules of crystallization are situated between the crown ethers. The neutral, molecular [Rb(18crown-6)]3Sb7 units are interconnected by multiple dipole–.
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