Synthesis of Sr2PrO4:: a Pr4+-containing oxide in the Sr2PbO4 structure type

被引：14

作者：

Fiscus, JE ^{[1
]}

zur Loye, HC ^{[1
]}

机构：

[1] Univ S Carolina, Dept Chem & Biochem, Columbia, SC 29208 USA

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2000年 / 306卷 / 1-2期

基金：

美国国家科学基金会;

关键词：

Sr2PrO4; Sr2PbO4; tetravalent praseodymium;

D O I：

10.1016/S0925-8388(00)00785-4

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Polycrystalline Sr2PrO4 was prepared from SrCO3 and Pr6O11 at 1000 degrees C. The structure was solved by Rietveld refinement of synchrotron powder X-ray data. The structure was refined in space group Pbam, with a=6.12382(3) Angstrom, b=10.28083(5) Angstrom, and c=3.58963(2) Angstrom and is isostructural to Sr2PbO4. The structure consists of infinite chains of edge shared PrO6 octahedra connected by a perpendicular network of SrO6 trigonal prisms. Thermogravimetric analysis, diffuse reflectance measurements, and magnetic susceptibility measurements (1.20(4) mu(B)) are all consistent with tetravalent praseodymium. (C) 2000 Elsevier Science S.A. All rights reserved.

引用

页码：141 / 145

页数：5

共 23 条

[1]

[Anonymous], 1994, LAUR86748 LOS AL NAT

[2] Synthesis, superconductivity and magnetism of RSr(2)Cu(2)NbO(7+delta) compounds (R=Y, Pr and Gd) [J].

Awana, VPS ;

Menon, L ;

Malik, SK .

PHYSICA C, 1996, 262 (3-4) :266-271

[3] Superconductivity and ordering of Pr in CaLa1-xPrxBaCu3O7 compound [J].

Awana, VPS ;

Tellez, DAL ;

Ferreira, JM ;

Aguiar, JA ;

Malik, SK ;

Narlikar, AV ;

Yelon, WB ;

Singh, R ;

Uma, S ;

Gmelin, E .

PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, 1997, 282 :807-808

[4] CRYSTAL-STRUCTURE OF CS2PRO3 AND ALSO ABOUT CS2CEO3,CS2TBO3, RB2CEO3 AND RB2TBO3 [J].

BRUNN, H ;

HOPPE, R .

ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE, 1977, 433 (01) :189-199

[5]

COX DE, 1994, J APPL CRYSTALLOGR, V27, P892

[6] X-ray powder structure of Sr2CeO4:: a new luminescent material discovered by combinatorial chemistry [J].

Danielson, E ;

Devenney, M ;

Giaquinta, DM ;

Golden, JH ;

Haushalter, RG ;

McFarland, EW ;

Poojary, DM ;

Reaves, CM ;

Weinberg, WH ;

Di Wu, X .

JOURNAL OF MOLECULAR STRUCTURE, 1998, 470 (1-2) :229-235

[7] MAGNETIC-PROPERTIES, SPECIFIC-HEAT STUDIES AND MOSSBAUER MEASUREMENTS OF PRBA2NBCU2O8 [J].

FELNER, I ;

ASAF, U ;

HECHEL, D ;

YARON, U ;

KRONER, T .

PHYSICA C, 1993, 214 (1-2) :169-174

[8] Electron paramagnetic resonance spectrum of Pr4+ in Sr2CeO4 [J].

Hinatsu, Y ;

Wakeshima, M ;

Edelstein, N ;

Craig, I .

JOURNAL OF SOLID STATE CHEMISTRY, 1999, 144 (01) :20-24

[9] MAGNETIC-SUSCEPTIBILITY AND ELECTRON-PARAMAGNETIC RESONANCE-SPECTRUM OF TETRAVALENT PRASEODYMIUM IONS IN BAPRO3 [J].

HINATSU, Y .

JOURNAL OF SOLID STATE CHEMISTRY, 1993, 102 (02) :362-367

[10] Electron paramagnetic resonance spectra of Pr4+ in BaCeO3, BaZrO3, BaSnO3, and their solid solutions [J].

Hinatsu, Y .

JOURNAL OF SOLID STATE CHEMISTRY, 1996, 122 (02) :384-389

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