6533b836fe1ef96bd12a07b5

RESEARCH PRODUCT

Synthesis and crystal structure of Na1+xV4P4O17(OH) (x ≈ 1.44)

Pedro AmorósA. Le BailMarc Leblanc

subject

chemistry.chemical_classificationChemistrySodiumchemistry.chemical_elementCrystal structureCondensed Matter PhysicsElectronic Optical and Magnetic MaterialsInorganic ChemistryCrystallographyOctahedronPhase (matter)X-ray crystallographyMaterials ChemistryCeramics and CompositesHydrothermal synthesisOrthorhombic crystal systemPhysical and Theoretical ChemistryInorganic compound

description

Abstract Hydrothermal synthesis starting from Na0.46VOPO4 · 1.58H2O leads to a new mixed-valence sodium vanadium phosphate: Na2.44V4P4O17(OH) (orthorhombic, space group Pnma; Z = 4; a = 13.723(5) A, b = 6.314(2) A, c = 16.139(4) A; R = 0.032 for 2659 reflections). In this phase, the interconnection of three complex types of infinite chains, built from VO6 octahedra and PO4 tetrahedra, sometimes edgeshared, defines tunnels partly occupied by a portion of the sodium atoms.

https://doi.org/10.1016/0022-4596(90)90080-h