title: Synthesis of heteroatomic Zintl anions in liquid ammonia--the new highly charged [Sn4Bi4]4- and fully ordered [Sn2Bi2]2-.
abstract: The new Zintl anion [Sn(4)Bi(4)](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 [Sn(2)Bi(2)](2-) ion.
authors.affiliation: Institute for Inorganic Chemistry, University of Regensburg, Regensburg, Germany.
authors.forename: Ute
authors.initials: U
authors.lastname: Friedrich
authors.forename: Maria
authors.initials: M
authors.lastname: Neumeier
authors.forename: Carina
authors.initials: C
authors.lastname: Koch
authors.forename: Nikolaus
authors.initials: N
authors.lastname: Korber