6533b82efe1ef96bd1293a6e
RESEARCH PRODUCT
Synthesis and crystal structure of α-NH4(VO2)(HPO4)
A. Le BailPedro Amoróssubject
ChemistryStereochemistryCrystal structureCondensed Matter PhysicsElectronic Optical and Magnetic MaterialsInorganic ChemistryCrystallographyPhase (matter)X-ray crystallographyMaterials ChemistryCeramics and CompositesHydrothermal synthesisOrthorhombic crystal systemPhysical and Theoretical Chemistrydescription
Abstract Hydrothermal synthesis starting from β-NH 4 (VO 2 )(HPO 4 ) leads to α-NH 4 (VO 2 )(HPO 4 ): orthorhombic, space group Pb 2 1 a ; Z = 4; a = 6.830(1) A, b = 9.233(2) A, c = 8.817(2) A; R = 0.037 for 3371 reflections. NH + 4 cations connect isolated chains of trans -corner sharing VO 5 square pyramids running along the a -axis. The a -phase transforms irreversibly into the β-form by heating near 200°C. Comparison is made between the two phases.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1992-04-01 | Journal of Solid State Chemistry |