Scandium fluorides
Nenhuma Miniatura disponível
Data
1997-11-14
Autores
Melnikov, P. [UNESP]
Nalin, Marcelo [UNESP]
Messaddeq, Younes [UNESP]
Título da Revista
ISSN da Revista
Título de Volume
Editor
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.
Descrição
Palavras-chave
Fiber glasses, Fluorides, Scandium, Ammonium compounds, Crystal structure, Decomposition, Fluorine, Lattice constants, Modification, Synthesis (chemical), Ammonium aminofluoride, Scandium fluoride, Scandium compounds
Como citar
Journal of Alloys and Compounds, v. 262-263, p. 296-298, 1997