The crystal structure of nowackiite, Cu6Zn3As4S12*
Abstract
The crystal structure of a new copper zine arsenosulfosalt, Cu6Zn3As4S12 has been determined. Tho crystal is rhombohedral, having tho unit-cell dimensions arh = 8.34 Å, αrh = 107°20′, ahex = 13.44 Å, chex = 9.17 Å, and the symmetry C34–R3. The structure was solved by interpretation of a three-dimensional Patterson function synthetized with super-lattice reflections only. It was not possible to distinguish between Zn and Cu atoms.
The crystal has a defect zincblende-type structure, the S atom positions on three-fold rotation axes being vacant. Four As atoms surround the vacant sites, each As atom having a trigonal-pyramidal coordination of S atoms. The As–S distances ranging between 2.24 Å and 2.27 Å are in good agreement with the As–S covalent bond length. The Cu–S and Zn–S distances obtained are between 2.279 Å and 2.355 Å.
Articles in the same Issue
- On the significance of two new Patterson functions for disordered crystals*
- The difference Fourier-transform (DFT) method for direct crystal-structure determination*
- Neutronenbeugungsuntersuchung der Strukturen von MgAl2O4- und ZnAl2O4-Spinellen, in Abhängigkeit von der Vorgeschichte
- Ein Mikrothermostat für Weissenberg-Kameras
- Erneute Strukturbestimmung von Bariumnitrat mit Neutronenbeugung
- The crystal and molecular structure of hydrazinium tris(hydrazincarboxylato-N′,O)niccolate(II) monohydrate
- The crystal structure of nowackiite, Cu6Zn3As4S12*
- Anisotropies diamagnétiques des cyanures doubles de Sodium hydratés à base de Platine, Palladium et Nickel
- Refinement of the crystal structure of arsenic tribromide
- A correction to the visually estimated intensities for the spot-size variation in the upper-level Weissenberg photographs
- Unit-cell dimensions and space group of cadmium salicylate dihydrate
Articles in the same Issue
- On the significance of two new Patterson functions for disordered crystals*
- The difference Fourier-transform (DFT) method for direct crystal-structure determination*
- Neutronenbeugungsuntersuchung der Strukturen von MgAl2O4- und ZnAl2O4-Spinellen, in Abhängigkeit von der Vorgeschichte
- Ein Mikrothermostat für Weissenberg-Kameras
- Erneute Strukturbestimmung von Bariumnitrat mit Neutronenbeugung
- The crystal and molecular structure of hydrazinium tris(hydrazincarboxylato-N′,O)niccolate(II) monohydrate
- The crystal structure of nowackiite, Cu6Zn3As4S12*
- Anisotropies diamagnétiques des cyanures doubles de Sodium hydratés à base de Platine, Palladium et Nickel
- Refinement of the crystal structure of arsenic tribromide
- A correction to the visually estimated intensities for the spot-size variation in the upper-level Weissenberg photographs
- Unit-cell dimensions and space group of cadmium salicylate dihydrate
