Abstract
AbstractThe ammoniate [K17(Sb8)2(NH2)] · 17.5NH3 was synthesized by reduction of antimony with potassium in liquid ammonia. Single crystals were isolated and characterized by low temperature X‐ray structure analysis. [K17(Sb8)2(NH2)] · 17.5NH3 crystallizes in the space group P21/c (No. 14) with a = 12.976(1) Å, b = 24.536(1) Å, c = 22.858(1) Å and β = 99.17(1)°. The ammoniate contains crown‐shaped [Sb8]8− Zintl anions which are analogous to S8 rings. The presence of amide NH2− as an additional anion is deduced from coordination observations and the close similarity of structural features to the structure of KNH2.
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