| Redetermination of the Crystal Structure of Vesignieite |
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| 摘 要： | Vesignieite, Cu_3Ba(VO_4)_2(OH)_2, crystallizes in space group C_2 / m with a°=1.0270(2), b°=0.5911(1),c°=0.7711(2)nm and β=116.42(3)°. The intensity data were collected with the RIGAKU RASA-IISsingle-crystal four-circle diffractometer. The structure was determined by Patterson and Fourier methods andrefined by the least-square technique to a final R index of 0.051 for 614 independent diffraction points with|F? |>3σ|F?|. The crystal structure analysis shows that vesignieite has a layer structure parallel to (001). The powder diffraction lines were reindexed.
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Redetermination of the Crystal Structure of Vesignieite |
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| Authors: | Ma Zhesheng He Ruilin Zhu Xiaoling |
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| Abstract: | Abstract Vesignieite, Cu3Ba(VO4)2(OH)2, crystallizes in space group C2/ m with a ° = 1.0270(2), b ° =0.5911(1), c° = 0.7711(2)nm and β =116.42(3)°. The intensity data were collected with the RIGAKU RASA-IIS single-crystal four-circle diffractometer. The structure was determined by Patterson and Fourier methods and refined by the least-square technique to a final R index of 0.051 for 614 independent diffraction points with |F| > 3σ| F|. The crystal structure analysis shows that vesignieite has a layer structure parallel to (001). The powder diffraction lines were reindexed. |
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