✦ LIBER ✦
ChemInform Abstract: Jahn-Teller Ordering in Kagome-Type Layers of Compounds M2M′MnIII3F12 ( M: Rb, Cs; M′: Li, Na, K).
✍ Scribed by U. ENGLICH; C. FROMMEN; W. MASSA
- Publisher
- John Wiley and Sons
- Year
- 2010
- Weight
- 29 KB
- Volume
- 28
- Category
- Article
- ISSN
- 0931-7597
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✦ Synopsis
prepared by heating mixtures of the binary fluorides. Single-crystal XRD results show that the compounds with M2M': Cs2Na, Rb2Na, and Rb2Li are isostructural and crystallize in the triclinic space group P1 with Z = 2. Cs2LiMn3F12 (trigonal, R3, Z = 3) is a merohedral twin and Cs2KMn3F12 belongs to the monoclinic system (C2/c, Z = 4). All compounds consist of (Mn3F12) layers of corner-sharing (MnF6) octahedra of the Kagome-net type (3 + 6 octahedra units) which are elongated according to the Jahn-Teller effect.