Hydrothermal Synthesis, Crystal Structure, and Magnetic Properties of a New Inorganic Vanadium(III) Phosphate with a Chain Structure
authors Ferdov, S; Reis, MS; Lin, Z; Ferreira, RAS
nationality International
journal INORGANIC CHEMISTRY
keywords POWDER DIFFRACTION; MALEIC-ANHYDRIDE; CATALYSTS; OXIDATION; RELIABILITY; COMPLEXES; CRITERION; BUTANE
abstract A new vanadium(III) phosphate, Na3V(OH)(HPO4)(PO4), has been synthesized by using mild hydrothermal conditions under autogeneous pressure. This material represents a very rare example of sodium vanadium(III) phosphate with a chain structure. The crystal structure has been determined by refinement of powder X-ray diffraction data, starting from the atomic coordinates of an isotypic compound, Na3Al(OH)(HPO4)(PO4), which was obtained under high temperature and high pressure. The phase crystallizes in monoclinic space group C2/m (No. 12) with lattice parameters a = 15.423(9) angstrom, b = 7.280(0) angstrom, c = 7.070(9) angstrom, = 96.79(7)degrees, V = 788.3(9) angstrom(3), and Z = 4. The structure consists of one-dimensional chains composed of corner-sharing VO5(OH) octahedra running along the b direction. They are decorated by isolated PO4 and HPO4 tetrahedra sharing two of their corners with the ones of the vanadium octahedra. The interconnection between the chains is assured by three crystallographically distinct Na+ cations. Magnetic investigation confirms the 3+ oxidation state of the vanadium ions and reveals an antiferromagnetic arrangement between those ions through the chain.
publisher AMER CHEMICAL SOC
issn 0020-1669
year published 2008
volume 47
issue 21
beginning page 10062
ending page 10066
digital object identifier (doi) 10.1021/ic801318c
web of science category Chemistry, Inorganic & Nuclear
subject category Chemistry
unique article identifier WOS:000260426700045
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