Suchentrunk, Christof and Korber, Nikolaus (2006) Ge-5(2-) Zintl anions: synthesis and crystal structures of [K([2.2.2]-crypt](2)Ge-5 center dot 4NH(3) and [Rb([2.2.2]-crypt](2)Ge-5 center dot 4NH(3). NEW JOURNAL OF CHEMISTRY, 30 (12). pp. 1737-1739. ISSN 1144-0546,
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The new compounds [K(C18H36N2O6)](2)Ge-5 center dot 4NH(3) (1) and [Rb(C18H36N2O6)](2)Ge-5 center dot 4NH(3) (2) were prepared by the extraction of a binary phase of the nominal composition KGe1.67 and a ternary phase of the composition Rb0.5Cs0.5Ge2.25 With liquid ammonia in the presence of cryptand [2.2.2]. The resulting crystalline materials were characterized by low temperature X-ray structure analysis. Compounds 1 and 2 contain isolated trigonal-bipyramidal Ge-5(2-) cage anions, the symmetries of which were investigated and compared to the previously reported pentagermanide anion. Despite the nearly identical formulae, the two compounds are not isotypic, as the space group type changes from the acentric group P1 (no. 1) for the potassium compound to P (1) over bar (no. 2) for the rubidium compound.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | STABLE HOMOPOLYATOMIC ANIONS; DENSITY-FUNCTIONAL THEORY; CONFIGURATIONAL QUESTIONS; GERMANIUM CLUSTERS; IONS; COMPOUND; GE-9(3-); ELEMENTS; SALTS; PB; |
| 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: | 18 Jan 2021 06:29 |
| Last Modified: | 18 Jan 2021 06:29 |
| URI: | https://pred.uni-regensburg.de/id/eprint/33717 |
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