Publicação: Scandium fluorides
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Resumo
A new modification of scandium fluoride has been synthesised. The compound is deficient in fluorine, with the composition ScF2.76. It belongs to the tetragonal system, lattice parameters being a = 3.792 and c = 6.740 Å and may be obtained at low temperatures by the decomposition of the precursor NH4ScF4. The reaction is topotactic, tetragonal parameters of the precursor are a = 4.021 and c = 6.744 Å. Structural relationships with various fluorides and ammonium aminofluorides are discussed. This synthesis route with IR-assisted decomposition should be considered as a soft-chemistry approach. © 1997 Elsevier Science S.A.
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Fiber glasses, Fluorides, Scandium, Ammonium compounds, Crystal structure, Decomposition, Fluorine, Lattice constants, Modification, Synthesis (chemical), Ammonium aminofluoride, Scandium fluoride, Scandium compounds
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Inglês
Como citar
Journal of Alloys and Compounds, v. 262-263, p. 296-298, 1997
