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Titolo:
Anhydrous sulfates of rare earth elements: Syntheses and crystal structures of Y-2(SO4)(3) and Sc-2(SO4)(3)
Autore:
Wickleder, MS;
Indirizzi:
Univ Cologne, Inst Anorgan Chem, D-50939 Cologne, Germany Univ Cologne Cologne Germany D-50939 rgan Chem, D-50939 Cologne, Germany
Titolo Testata:
ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE
fascicolo: 6, volume: 626, anno: 2000,
pagine: 1468 - 1472
SICI:
0044-2313(200006)626:6<1468:ASOREE>2.0.ZU;2-#
Fonte:
ISI
Lingua:
GER
Soggetto:
THERMAL-BEHAVIOR; SINGLE-CRYSTALS; ER-2(SO4)(3); REFINEMENT; CHLORIDES;
Keywords:
rare earth elements; crystal structure; sulfates;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
20
Recensione:
Indirizzi per estratti:
Indirizzo: Wickleder, MS Univ Cologne, Inst Anorgan Chem, Greinstr 6, D-50939 Cologne, Germany Univ Cologne Greinstr 6 Cologne Germany D-50939 ne, Germany
Citazione:
M.S. Wickleder, "Anhydrous sulfates of rare earth elements: Syntheses and crystal structures of Y-2(SO4)(3) and Sc-2(SO4)(3)", Z ANORG A C, 626(6), 2000, pp. 1468-1472

Abstract

The reaction of YCl3 and Li2SO4 in sealed gold ampoules yields colorless single crystals of Y-2(SO4)(3). According to the X-ray single crystal determination the compound crystallizes with orthorhombic symmetry (Pbcn, Z = 4, a = 1273.97(13), b = 916.76(9), c = 926.08(7) pm, R-all = 0.0274). The crystal structure is buildt up from [YO6] octahedra and sulfate tetrahedra connected via all vertices. In the same way [ScO6] octahedra and sulfate groupsare connected in the crystal structure of SC2(SO4)(3) (trigonal, R-3, Z = 6, a = 870.7(1), c = 2247.0(4) pm, R-all = 0.0255). Single crystals of Sc-2(SO4)(3) were obtained via crystallisation of powder samples from a NaCl melt. The crystal structures of both compounds are closely related to each other and to the binary sulfides Rh2S3 and Lu2S3; the structures are the samewith the complex SO42- ions replacing the S2- ions of the sulfides.

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Documento generato il 21/09/18 alle ore 07:35:57