Wiesler, Katharina and Brandl, Karoline and Fleischmann, Andrea and Korber, Nikolaus (2009) Tetrahedral [Tt(4)](4-) Zintl Anions Through Solution Chemistry: Syntheses and Crystal Structures of the Ammoniates Rb4Sn4 center dot 2NH(3), Cs4Sn4 center dot 2NH(3), and Rb4Pb4 center dot 2NH(3). ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE, 635 (3). pp. 508-512. ISSN 0044-2313,
Full text not available from this repository. (Request a copy)Abstract
The crystalline isotypic solvates Rb4Sn4 center dot 2NH(3), Cs4Sn4 center dot 2NH(3), and Rb4Pb4 center dot 2NH(3) have been synthesized using the direct reduction of elemental tin or tetraphenyltin, respectively, with heavier alkali metals or the dissolution of the binary phase RbPb in liquid ammonia. These compounds contain the cluster ions [Sn-4](4-) or [Pb-4](4-) respectively This is the first time that [Tt(4)](4-) ions (Tt = tetrels) are detected as result of a Solution reaction. The accommodation of the ammonia molecules, which build up ion-dipole interactions to alkali metal cations, requires some modifications of the crystal structures compared to the binary phases RbSn, CsSn, and RbPb. The tetrahedral [Tt(4)](4-) anions have a slightly lower coordination by Rb+ or Cs+ cations and, furthermore, the intercluster distances show a remarkable increase.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | ALKALIMETALLE ZU HALBMETALLEN; DAS VERHALTEN; METAL; ANNOUNCEMENT; ALLOYS; PHASES; Zintl anions; Intermetallic phases; Liquid ammonia; Cage compounds; Tetrels |
| Subjects: | 500 Science > 540 Chemistry & allied sciences |
| Divisions: | Chemistry and Pharmacy > Institut für Anorganische Chemie > Arbeitskreis Prof. Dr. Nikolaus Korber |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 14 Oct 2020 06:21 |
| Last Modified: | 14 Oct 2020 06:21 |
| URI: | https://pred.uni-regensburg.de/id/eprint/29897 |
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