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Synthesis of heteroatomic Zintl anions in liquid ammonia – the new highly charged [Sn4Bi4]4− and fully ordered [Sn2Bi2]2−

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Friedrich, Ute ; Neumeier, Maria ; Koch, Carina ; Korber, Nikolaus
License: Allianz- bzw. Nationallizenz
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Date of publication of this fulltext: 02 Aug 2016 06:27


The new Zintl anion [Sn4Bi4]4−, synthesized by dissolving CsSnBi in liquid ammonia, forms a monocapped nortricyclane-like cage. Its electron localization function (ELF) analysis shows evidence for 3-centre bonding. The analogous reaction with KSnBi results in a crystallographically fully ordered tetrahedral [Sn2Bi2]2− ion.

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