Abstract
The compound K14Cd9Tl21 has been prepared by fusion of the elements in a tantalum reactor followed by slow cooling at the rate of 6 per hour to enable crystal growth. The X-ray crystal structure (hexagonal, P62m; a = 9.884(3),c= 17.173(5) Å; Z= 2) was refined to reliability factors of R1 = 5.09, wR2 = 11.64%. The anionic substructure contains both isolated clusters of Tl11/7- and a layered network based on Cd5Tl2 pentagonal bipyramids. The structure electron count relationship for the Tl11/7- cluster was analyzed in detail. The Cd9Tl10/7- layers are found to confer metallic properties to the material, and the bonding within such layers is found to be highly delocalized.
| Original language | English |
|---|---|
| Pages (from-to) | 799-806 |
| Number of pages | 8 |
| Journal | Chemistry - A European Journal |
| Volume | 3 |
| Issue number | 5 |
| DOIs | |
| Publication status | Published - May 1997 |
Keywords
- Zintl phases
- cadmium
- clusters
- layered compounds
- semiempirical calculations
- thallium
ASJC Scopus subject areas
- Catalysis
- Organic Chemistry
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Tillard-Charbonnel, M., Chahine, A., Belin, C., Rousseau, R., & Canadell, E. (1997). Structure and chemical bonding in K14Cd9Tl21, a compound containing both isolated Tl11/7- clusters and (∞)/2([Cd9Tl10/7-] metallic layers. Chemistry - A European Journal, 3(5), 799-806. https://doi.org/10.1002/chem.19970030520