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Copper(II) silicates and germanates with chain structures I. CaCuGe2O6, a strongly deformed pyroxene*
Published/Copyright:
August 25, 2010
Abstract
CaCuGe2O6 has an extremely distorted pyroxene structure with P21/c, a = 10.198 Å,b = 9.209 Å, c = 5.213 Å, β = 105.73° and Z = 4. The final R-value is Rw = 0.028. The coordination polyhedron of copper is a deformed Jahn-Teller octahedron; Ca has an irregular 7 + 1 coordination. Half of the Ge atoms occupy tetrahedra forming Ge2O6 chains which are arranged in layers as typical for pyroxenes. The other half is located in trigonal bipyramids GeO5 which are linked to layers Ge4O12. Both layer types alternate along [unk].
Published Online: 2010-8-25
Published in Print: 1986-10-2
© 2015 Oldenbourg Wissenschaftsverlag GmbH, Rosenheimer Str. 145, 81671 München
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Articles in the same Issue
- Enstatite, Mg2Si206: A neutron diffraction refinement of the crystal structure and a rigid-body analysis of the thermal vibration
- Crystal structure of 5-benzene sulphonamido 3-phenyl 1,2,4-triazole
- A study of decomposition methods for refinement of H+-ZSM5 zeolite with powder diffraction data
- Polytypes and polytypism
- Copper(II) silicates and germanates with chain structures I. CaCuGe2O6, a strongly deformed pyroxene*
- Copper(II) silicates and germanates with chain structures II. Crystal chemistry *
- Fehlordnung bei Verbindungen MX3 mit Schichtenstruktur I. Berechnung des Intensitätsverlaufs auf den Streifen der diffusen Röntgenstreuung
- Fehlordnung bei Verbindungen MX3 mit Schichtenstruktur II. Analyse der Fehlordnung im Wismuttriiodid
- Effect of inaccessible volumes accompanied by symmetry elements on cumulative distribution functions
- Groups of simple and multiple antisymmetry of layers
- Electron diffraction intensity calculation and image simulation considering absorption for germanium and gold
- Structures of two modifications of Ca3GeO5
- Transverse quadratic electrostrictive effect in alkali halides with the NaCl structure*
