Crystal structure analysis of van der Waals layered phosphorus chalcogenide CuVP <sub>2</sub> S <sub>6</sub>
The crystal structure of CuVP<sub>2</sub>S<sub>6</sub> is investigated by transmission electron microscopy (TEM) and single-crystal X-ray diffraction. Cu, V and dimerized P<sub>2</sub> are each octahedrally coordinated by S atoms. Each metal ion species forms a triangular lattice, which is interdigitated to form a two-dimensional sheet. Each sheet forms a layered structure with van der Waals gaps between them. The crystal has a rotational twin structure, which is manifested in the form of stacking disorder. Refined structure analysis reveals characteristic rotational distortion of the octahedra. The existence of Cu sites protruding into the van der Waals gap is directly shown by high-resolution scanning TEM.
Authors
- Nur Farhana Hasmuni
- Mohd Zamri Mohd Yusop (ORCID: https://orcid.org/0000-0003-0897-2712)
- Toru Asaka (ORCID: https://orcid.org/0000-0001-7399-1077)
- Koichiro Fukuda (ORCID: https://orcid.org/0000-0001-8591-2786)
- Daisuke Urushihara (ORCID: https://orcid.org/0000-0002-2967-0337)
- R. Hayashi
- Ryo Sato
Institutions
- Nagoya Institute of Technology (JP)
- University of Technology Malaysia (MY)
Publication Details
- Journal
- Acta Crystallographica Section B Structural Science Crystal Engineering and Materials
- Published
- 2025-11-12
- DOI
- https://doi.org/10.1107/s2052520625008820
- Primary Topic
- 2D Materials and Applications
- Type
- article
- Field-Weighted Citation Impact
- 0.00