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Redetermination of zn(2)mo(3)o(8)
Jerome Cuny1, Patrick Gougeon, Philippe Gall
1Sciences Chimiques de Rennes, UMR CNRS No. 6226, Université de Rennes I-INSA Rennes, Avenue du Général Leclerc, 35042 Rennes CEDEX, France.
This study redetermined the crystal structure of dizinc trimolybdenum octa-oxide (Zn(2)Mo(3)O(8)) using single-crystal X-ray diffraction, improving precision of structural parameters. The refined structure reveals specific atomic arrangements and bonding within the oxide layers.
Area of Science:
- Inorganic Chemistry
- Solid-State Chemistry
- Crystallography
Background:
- The crystal structure of dizinc trimolybdenum octa-oxide (Zn(2)Mo(3)O(8)) has been previously investigated using neutron powder and single-crystal diffraction.
- Previous studies provided foundational structural data for this inorganic compound.
Purpose of the Study:
- To redetermine the crystal structure of dizinc trimolybdenum octa-oxide (Zn(2)Mo(3)O(8)) with enhanced precision.
- To refine structural and geometric parameters using single-crystal X-ray data and anisotropic displacement parameters.
Main Methods:
- Single-crystal X-ray diffraction was employed for the redetermination.
- All atoms were refined using anisotropic displacement parameters to improve accuracy.
Main Results:
- The crystal structure features distorted hexagonal-close-packed oxygen layers with an abac stacking sequence.
- Zinc atoms occupy tetrahedral and octahedral sites in a 1:1 ratio.
- Molybdenum atoms form triangular clusters of MoO(6) octahedra (Mo(3)O(13) units) linked by shared edges.
Conclusions:
- The redetermination provides a more precise structural model for Zn(2)Mo(3)O(8).
- The refined data clarifies the coordination environments and bonding of zinc and molybdenum atoms.
- The study confirms the specific atomic positions and site symmetries within the crystal lattice.
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