STRUCTURE AND OXYGEN STOICHIOMETRY IN SR3FE2O7-Y'0-LESS-THAN-OR-EQUAL-TO-Y-LESS-THAN-OR-EQUAL-TO-1.0

被引：139

作者：

DANN, SE ^{[1
]}

WELLER, MT ^{[1
]}

CURRIE, DB ^{[1
]}

机构：

[1] UNIV SOUTHAMPTON,DEPT CHEM,SOUTHAMPTON SO9 5NH,HANTS,ENGLAND

来源：

JOURNAL OF SOLID STATE CHEMISTRY | 1992年 / 97卷 / 01期

关键词：

D O I：

10.1016/0022-4596(92)90023-O

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Powder neutron diffraction has been used to determine the structure of four compounds from the series Sr3Fe2O7-y, y = 0, 0.25, 0.42, and 1.0. All these compounds crystallize with structures based on that of Sr3Ti2O7 with oxygen systematically removed from a site linking the FeO6 octahedra together. Complete removal of oxygen from this site produces an unusual, square-pyramidal coordination around each iron(III) ion and a stoichiometry of Sr3Fe2O6; this compound is isostructural with La2SrCu2O6. A bond valence parameter, R0, for Fe4+ has been derived as 1.788(2) Å. © 1992.

引用

页码：179 / 185

页数：7

共 11 条

[1] 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

[2] OXYGEN DISTRIBUTION AND THE STRUCTURE OF LA2-XBAXSRCU2O6-+DELTA (0 LESS-THAN X LESS-THAN 0.25) [J].

CURRIE, DB ;

WELLER, MT ;

ROWLES, S ;

GREGORY, DH .

MATERIALS RESEARCH BULLETIN, 1990, 25 (10) :1279-1286

[3] THE SYNTHESIS AND STRUCTURE OF SR2FEO4 [J].

DANN, SE ;

WELLER, MT ;

CURRIE, DB .

JOURNAL OF SOLID STATE CHEMISTRY, 1991, 92 (01) :237-240

[4] STRUPLO84, A FORTRAN PLOT PROGRAM FOR CRYSTAL-STRUCTURE ILLUSTRATIONS IN POLYHEDRAL REPRESENTATION [J].

FISCHER, RX .

JOURNAL OF APPLIED CRYSTALLOGRAPHY, 1985, 18 (AUG) :258-262

[5] MOSSBAUER EFFECT IN SYSTEM SR3FE2O6-7 [J].

GALLAGHER, PK ;

MACCHESNEY, JB ;

BUCHANAN, DN .

JOURNAL OF CHEMICAL PHYSICS, 1966, 45 (07) :2466-+

[6]

Johnson M.W., 1985, 85112 RUTH APPL LAB

[7] CRYSTAL-STRUCTURE OF ALPHA-SR3FE2O7-X [J].

LUCCHINI, E ;

MINICHEL.D ;

SLOCCARI, G .

ACTA CRYSTALLOGRAPHICA SECTION B-STRUCTURAL SCIENCE, 1973, 29 (NOV15) :2356-2357

[8]

MCCHESNEY JB, 1965, J CHEM PHYS, V43, P1908

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

RIETVELD, HM .

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

[10] GROWTH OF SINGLE-CRYSTALS OF BAFE4+O3(12L), BANI4+O3(2L) AND BACO4+O3(2L) UNDER HIGH OXYGEN-PRESSURE [J].

SHIMADA, M ;

TAKEDA, Y ;

TAGUCHI, H ;

KANAMARU, F ;

KOIZUMI, M .

JOURNAL OF CRYSTAL GROWTH, 1975, 29 (01) :75-76

← 1 2 →