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Updated: Jun 1, 2026
08:44
Synthesis and Reaction Chemistry of Nanosize Monosodium Titanate
Published on: February 23, 2016
NASICON-type Na(3)V(2)(PO(4))(3).
1Department of Inorganic Chemistry, Taras Shevchenko National University, 64 Volodymyrska str., 01601 Kyiv, Ukraine.
Summary
Single crystals of tris-odium divanadium(III) tris-(orthophosphate) were successfully grown. This NASICON-related structure features linked octahedra and tetrahedra with partially occupied sodium cation sites.
Area of Science:
- Solid-state chemistry
- Crystallography
- Materials science
Background:
- NASICON-related structures are known for their potential in ion-exchange and energy storage applications.
- Understanding the crystal structure of novel compounds is crucial for predicting their properties.
Purpose of the Study:
- To synthesize and characterize single crystals of tris-odium divanadium(III) tris-(orthophosphate) (Na3V2(PO4)3).
- To elucidate the crystal structure and cation occupancies of the synthesized compound.
Main Methods:
- Single crystal growth from a Na4P2O7-NaVP2O7 self-flux system.
- X-ray diffraction analysis to determine crystal structure and site occupancies.
Main Results:
- Single crystals of Na3V2(PO4)3 were successfully grown.
- The compound exhibits a NASICON-related structure built from isolated [VO6] octahedra and [PO4] tetrahedra.
- Two independent sodium cations were identified with partial site occupancies (0.805(18) and 0.731(7)) and distinct coordination environments.
Conclusions:
- The crystal structure of Na3V2(PO4)3 was determined, revealing a framework of linked polyhedra.
- The partial occupancy and coordination of sodium cations provide insights into potential ion mobility within the structure.
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