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Published on: September 27, 2017
V(1.42)in(1.83)mo(15)se(19)
Patrick Gougeon1, Philippe Gall, Diala Salloum
1Sciences Chimiques de Rennes, UMR CNRS No. 6226, Université de Rennes I - INSA Rennes, Avenue du Général Leclerc, 35042 Rennes CEDEX, France.
Summary
This study details the crystal structure of vanadium indium molybdenum selenide, V(1.42)In(1.83)Mo(15)Se(19). Vanadium cations substitute indium, revealing a unique cluster arrangement and site deficiencies.
Area of Science:
- Solid-state chemistry
- Inorganic materials science
- Crystallography
Background:
- The compound V(1.42)In(1.83)Mo(15)Se(19) is isotypic with In(2.9)Mo(15)Se(19).
- Understanding the structural characteristics of complex metal selenides is crucial for materials science.
Purpose of the Study:
- To elucidate the crystal structure of vanadium indium molybdenum selenide.
- To characterize the arrangement of cluster units and atomic positions within the new compound.
Main Methods:
- Single-crystal X-ray diffraction was used to determine the structure.
- Analysis of Wyckoff positions and point-group symmetry was performed.
Main Results:
- The structure features two distinct cluster units, Mo(6)Se(8)Se(6) and Mo(9)Se(11)Se(6), in a 1:1 ratio.
- Vanadium (V) cations replace indium (In) atoms, with a deficiency noted at the indium site.
- Specific atoms (Mo, Se, V, In) occupy defined crystallographic positions, including mirror planes and threefold rotation axes.
Conclusions:
- The crystal structure of V(1.42)In(1.83)Mo(15)Se(19) is established, showing a substitution pattern of V for In.
- The interconnected cluster framework and specific atomic placements provide insights into the material's properties.
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