Synthesis, X-ray diffraction study and physico-chemical characterizations of KLaP{sub 4}O{sub 12}

Journal Article · Mon Aug 04 00:00:00 EDT 2008 · Materials Research Bulletin

DOI:https://doi.org/10.1016/j.materresbull.2007.08.021· OSTI ID:21144092

Mechergui, J ^[1]

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1. Chemistry Department, Sciences Faculty of Bizerta, 7021 Jarzouna, Bizerta (Tunisia)

Crystals of KLaP{sub 4}O{sub 12} have been synthesized by flux technique and characterized by single-crystal X-ray diffraction. This material crystallizes in the orthorhombic Cmc2{sub 1} space group with lattice parameters: a = 8.547(3) A, b = 11.668(1) A, c = 13.351(2) A, V = 1331.4(5) A{sup 3} and Z = 4. The crystal structure has been refined yielding a final R(F) = 0.015 and wR(F{sup 2})=0.039 for 1303 independent reflections. The three-dimensional framework with intersecting tunnels of KLaP{sub 4}O{sub 12} can be regarded as a succession of alternated [P{sub 4}O{sub 12}]{sup 4-} anionic and K{sup +}, La{sup 3+} cationic layers parallel to the (a and b) plane which are centered by the planes z = 0, 1/2 and 1/4, 3/4, respectively. The title compound has been also characterized by different physico-chemical techniques: IR, NMR and CI spectroscopies and DTA-TGA-DSC thermal analysis.

• OSTI ID: 21144092
• Journal Information: Materials Research Bulletin, Vol. 43, Issue 8-9; Other Information: DOI: 10.1016/j.materresbull.2007.08.021; PII: S0025-5408(07)00367-4; Copyright (c) 2007 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved; Country of input: International Atomic Energy Agency (IAEA); ISSN 0025-5408
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
CALORIMETRY
DIFFERENTIAL THERMAL ANALYSIS
ELECTRICAL PROPERTIES
LANTHANUM COMPOUNDS
LANTHANUM IONS
LATTICE PARAMETERS
LAYERS
MONOCRYSTALS
NUCLEAR MAGNETIC RESONANCE
ORTHORHOMBIC LATTICES
PHOSPHATES
POTASSIUM COMPOUNDS
POTASSIUM IONS
SPACE GROUPS
SPECTROSCOPY
SYNTHESIS
THERMAL GRAVIMETRIC ANALYSIS
X-RAY DIFFRACTION