Preparation and crystal structure of K2Ag12Te7
- Author(s)
- Franz Pertlik
- Abstract
Single crystals of K2Ag12Te7 (a = 11.460(2), c = 4.660(1) A°; V = 530.01 A°3; space group: P63/m; Z = 1) were synthesized under hydrothermal conditions at 250°C in concentrated aqueous KOH solution from elementary silver and tellurium. The crystal structure is characterized by trigonal prismatic KTe6 polyhedra, connected via two common faces to KTe3 rods parallel to [001]. These rods are combined by two crystallographically independent Ag atoms, each coordinated to four Te and three Ag atoms (Ag-Te and Ag-Ag <3.1 A°) to a framework of the formula (K2Ag12Te6)2+ and with channels parallel to the sixfold axis. These channels are statistically occupied by one further Te atom per unit cell, distributed over two independent positions.
- Organisation(s)
- Department of Mineralogy and Crystallography
- Journal
- Monatshefte für Chemie
- Volume
- 132
- Pages
- 1509-1513
- No. of pages
- 5
- ISSN
- 0026-9247
- Publication date
- 2001
- Peer reviewed
- Yes
- Austrian Fields of Science 2012
- 1051 Geology, Mineralogy
- Portal url
- https://ucrisportal.univie.ac.at/en/publications/5c23424b-4d1b-40cd-9a4e-6b80f9dfa1fa