Die Kristallstruktur der monoklinen Form von As2O3 (Claudetit II) |
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| Authors: | Dr. F. Pertlik |
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| Affiliation: | 1. Institut für Mineralogie und Kristallographie der Universit?t Wien, Dr.-Karl-Lueger-Ring 1, A-1010, Wien, ?sterreich
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| Abstract: | Claudetite II crystallizes monoclinic (a 0=7.99,b 0=4.65,c 0=9.12 Å, β=78.3°;Z=4) with space group P21/n-C 2h 5 . AnR-factor of 0.07 was obtained from 568 observed independent reflections using individual anisotropic temperature factors. Each of the two crystallographically different As-atoms forms a flat trigonal pyramid with three oxygens. The pyramids are connected in two dimensions by common corners to form undulating sheets parallel to (001). |
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