THE STRUCTURE OF A CALCIUM-DEFICIENT HEXAGONAL CALCIUM IRIDIUM OXIDE COMPOUND

被引：15

作者：

DIJKSMA, FJJ ^{[1
]}

VENTE, JF ^{[1
]}

FRIKKEE, E ^{[1
]}

IJDO, DJW ^{[1
]}

机构：

[1] NETHERLANDS ENERGY RES FDN,ECN,1755 ZG PETTEN,NETHERLANDS

来源：

MATERIALS RESEARCH BULLETIN | 1993年 / 28卷 / 11期

关键词：

CALCIUM; IRIDIUM; OXIDES;

D O I：

10.1016/0025-5408(93)90094-T

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Ca5-xIr3O12 (with x=0.26(3)) crystallizes in the hexagonal spacegroup P62mBAR with lattice parameters a=9.4235(5)angstrom and c=3.1945(2)angstrom. This compound has been reported earlier as Ca2IrO4. The structure has been refined by Rietveld analyses of neutron diffraction data recorded at room temperature, R(wp)=2.70%. The magnetic susceptibility was measured between 80 and 300K. The compounds obey the Curie-Weiss law including a Van Vleck temperature independent term. Electron diffraction patterns are in agreement with the structural parameters.

引用

页码：1145 / 1151

页数：7

共 15 条

[1] TERNARE OXIDE DER UBERGANGSMETALLE .6. ERDALKALIIRIDIUM(4)-OXIDE - STRUKTUR VON DICALCIUMIRIDIUM(4)-OXID CA2IRO4 [J].

BABEL, D ;

RUDORFF, W ;

TSCHOPP, R .

ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE, 1966, 347 (5-6) :282-&

[2] BOND-VALENCE PARAMETERS FOR SOLIDS [J].

BRESE, NE ;

OKEEFFE, M .

ACTA CRYSTALLOGRAPHICA SECTION B-STRUCTURAL SCIENCE, 1991, 47 :192-197

[3] BOND-VALENCE PARAMETERS OBTAINED FROM A SYSTEMATIC ANALYSIS OF THE INORGANIC CRYSTAL-STRUCTURE DATABASE [J].

BROWN, ID ;

ALTERMATT, D .

ACTA CRYSTALLOGRAPHICA SECTION B-STRUCTURAL SCIENCE, 1985, 41 (AUG) :244-247

[4] TRINEODYMIUM RUTHENATE .5. A RIETVELD REFINEMENT OF NEUTRON POWDER DIFFRACTION DATA [J].

GROEN, WA ;

VANBERKEL, FPF ;

IJDO, DJW .

ACTA CRYSTALLOGRAPHICA SECTION C-CRYSTAL STRUCTURE COMMUNICATIONS, 1987, 43 :2262-2264

[5] PREPARATION AND MAGNETIC STUDY OF A NEW IRIDIUM(V) PEROVSKITE - LALI0.5IR0.5O3 [J].

HAYASHI, K ;

DEMAZEAU, G ;

POUCHARD, M ;

HAGENMULLER, P .

MATERIALS RESEARCH BULLETIN, 1980, 15 (04) :461-467

[6] THE USE OF THE DURBIN-WATSON D-STATISTIC IN RIETVELD ANALYSIS [J].

HILL, RJ ;

FLACK, HD .

JOURNAL OF APPLIED CRYSTALLOGRAPHY, 1987, 20 (05) :356-361

[7]

Larson A.C., LAUR86748 LOS AL NAT

[8]

MACDANIEL CL, 1972, J SOLID STATE CHEM, V4, P275

[9] A PROFILE REFINEMENT METHOD FOR NUCLEAR AND MAGNETIC STRUCTURES [J].

RIETVELD, HM .

JOURNAL OF APPLIED CRYSTALLOGRAPHY, 1969, 2 :65-&

[10] TERNARE OXIDE DER UBERGANGSMETALLE .4. ERDALKALIIRIDIUM(4)-OXIDE - KRISTALLSTRUKTUR VON CALRO3 [J].

RODI, F ;

BABEL, D .

ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE, 1965, 336 (1-2) :17-&

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