Suchentrunk, Christof and Korber, Nikolaus (2006) Synthesis and crystal structures of [K(18-crown-6)][Rb(18-crown-6)](2)Ge9 center dot 6NH(3),[Rb(18-crown-6)](3)Ge-9 center dot 9NH(3) and [Cs(18-crown-6)](3)Ge-9 center dot 6NH(3). INORGANICA CHIMICA ACTA, 359 (1). pp. 267-272. ISSN 0020-1693, 1873-3255
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The new compounds [K(C12H24O6)][Rb(C12H24O6)](2)Ge-9 center dot 6NH(3), [Rb(C12H24O6)](3)Ge-9 center dot 9NE(3) and [Cs(C12H24O6)](3)Ge-9 center dot 6NH(3) were prepared by the extraction of binary and ternary phases of the nominal composition K2Rb2Ge9, Rb4Ge9 and K2Cs2Ge9 with liquid ammonia in the presence of 18-crown-6. The resulting crystals were characterized by low temperature X-ray structure analysis. All of them contain the 21 electron cluster Ge-9(3-), which is coordinated by alkali metal cations in ion-paired arrangements. The cages were assigned their specific point group symmetry and were compared with hitherto known structures. (c) 2005 Elsevier B.V. All rights reserved.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | CONFIGURATIONAL QUESTIONS; ZINTL ION; ELEMENTS; POLYANIONS; CLUSTERS; GE-9(3-); ANIONS; RADII; SALTS; VAN; zintl anion; germanide; low-temperature crystal structure analysis; liquid ammonia; solvate crystal |
| 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: | 01 Mar 2021 14:03 |
| Last Modified: | 01 Mar 2021 14:03 |
| URI: | https://pred.uni-regensburg.de/id/eprint/35174 |
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