Dipotassium tris-odium triphosphate, K(2)Na(3)P(3)O(10)

Area of Science:

• Inorganic Chemistry
• Crystallography
• Solid-State Chemistry

Background:

• Potassium sodium triphosphate (K(2)Na(3)P(3)O(10)) is an inorganic compound with potential applications in materials science.
• Understanding the crystal structure of such compounds is crucial for predicting their physical and chemical properties.

Purpose of the Study:

• To determine and characterize the crystal structure of K(2)Na(3)P(3)O(10).
• To compare the determined structure with related known compounds.

Main Methods:

• Single-crystal X-ray diffraction was employed to analyze the atomic arrangement.
• Crystallographic symmetry and atomic positions were determined.

Main Results:

• The structure features open chains composed of three phosphate (PO(4)) tetrahedra linked by oxygen bridges.
• The triphosphate (P(3)O(10)) groups exhibit crystallographic twofold symmetry.
• One sodium ion occupies a center of inversion, while other atoms are in general positions.

Conclusions:

• The determined crystal structure of K(2)Na(3)P(3)O(10) provides fundamental insights into its atomic arrangement.
• The compound is isotypic with the high-temperature form of sodium triphosphate (Na(5)P(3)O(10) phase I), suggesting similar structural motifs.