Gaertner, Stefanie and Tiefenthaler, Susanne and Korber, Nikolaus and Stempfhuber, Sabine and Hischa, Birgit (2018) Structural Chemistry of Halide including Thallides A(8)Tl(11)X(1-n) (A = K, Rb, Cs; X = Cl, Br; n=0.1-0.9). CRYSTALS, 8 (8): 319. ISSN 2073-4352,
Full text not available from this repository. (Request a copy)Abstract
A(8)Tl(11) (A = alkali metal) compounds have been known since the investigations of Corbett et al. in 1995 and are still a matter of current discussions as the compound includes one extra electron referred to the charge of the Tl-11(7-) cluster. Attempts to substitute this additional electron by incorporation of a halide atom succeeded in the preparation of single crystals for the lightest triel homologue of the group, Cs8Ga11Cl, and powder diffraction experiments for the heavier homologues also suggested the formation of analogous compounds. However, X-Ray single crystal studies on A(8)Tl(11)X to prove this substitution and to provide a deeper insight into the influence on the thallide substructure have not yet been performed, probably due to severe absorption combined with air and moisture sensitivity for this class of compounds. Here, we present single crystal X-Ray structure analyses of the new compounds Cs8Tl11Cl0.8, Cs8Tl11Br0.9, Cs5Rb3Tl11Cl0.5, Cs5.7K2.3Tl11Cl0.6 and K4Rb4Tl11Cl0.1. It is shown that a (partial) incorporation of halide can also be indirectly determined by examination of the Tl-Tl distances, thereby the newly introduced cdd/cd(av) ratio allows to evaluate the degree of distortion of Tl-11(7-) clusters.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | SOLID-STATE; CLUSTERS; ANNOUNCEMENT; METALS; PHASES; thallide; intermetallics; single crystal; X-ray structure analysis |
| Subjects: | 500 Science > 540 Chemistry & allied sciences |
| Divisions: | Chemistry and Pharmacy > Institut für Anorganische Chemie > Arbeitskreis Prof. Dr. Nikolaus Korber Chemistry and Pharmacy > Central Analytical Services |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 11 Mar 2020 14:35 |
| Last Modified: | 11 Mar 2020 14:35 |
| URI: | https://pred.uni-regensburg.de/id/eprint/14133 |
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