FE-IV DISPROPORTIONATION (2FE(IV)-]FE-III+FE-V) IN AFEO(3) (A=CA,SR) PEROVSKITE LATTICES STUDIED BY SN-119 DIAMAGNETIC PROBE MOSSBAUER-SPECTROSCOPY

被引：14

作者：

DEMAZEAU, G ^{[1
]}

FABRITCHNYI, P ^{[1
]}

FOURNES, L ^{[1
]}

DARRACQ, S ^{[1
]}

PRESNIAKOV, IA ^{[1
]}

POKHOLOK, KV ^{[1
]}

GORKOV, VP ^{[1
]}

ETOURNEAU, J ^{[1
]}

机构：

[1] MOSCOW MV LOMONOSOV STATE UNIV,FAC CHIM,MOSCOW 119889,RUSSIA

来源：

JOURNAL OF MATERIALS CHEMISTRY | 1995年 / 5卷 / 04期

关键词：

D O I：

10.1039/jm9950500553

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：

Using Sn-119(IV) as a diamagnetic probe in the perovskite lattice of AFeO(3) oxides (A = Ca, Sr), the Fe-IV disproportionation (2Fe(N) reversible arrow Fe-III + Fe-V) is discussed. An electronic phenomenon previously described for CaFeO3 is detected in SrFeO3 due to the local breakdown of the electronic delocalisation. Steric interactions seem to be the predominant factor for explaining the oxidation state of iron in the Sn-IV environment.

引用

页码：553 / 556

页数：4

共 30 条

[1] ELECTRONIC-STRUCTURE OF SRFE4+O3 AND RELATED FE PEROVSKITE OXIDES [J].

BOCQUET, AE ;

FUJIMORI, A ;

MIZOKAWA, T ;

SAITOH, T ;

NAMATAME, H ;

SUGA, S ;

KIMIZUKA, N ;

TAKEDA, Y ;

TAKANO, M .

PHYSICAL REVIEW B, 1992, 45 (04) :1561-1570

[2]

BOKOV VA, 1972, FIZ TVERD TELA+, V14, P104

[3] DETERMINATION OF CRYSTAL STRUCTURE OF YTTRIUM ORTHOFERRITE AND REFINEMENT OF GADOLINIUM ORTHOFERRITE [J].

COPPENS, P ;

EIBSCHUTZ, M .

ACTA CRYSTALLOGRAPHICA, 1965, 19 :524-+

[4] MOSSBAUER SPECTROMETRY OF THE PERVOSKITE CAFE(IV)O3 USING AN SN-119 DIAMAGNETIC PROBE [J].

DARRACQ, S ;

DEMAZEAU, G ;

FABRITCHNYI, P ;

FOURNES, L ;

PRESNIAKOV, IA ;

POKHOLOK, KV ;

GORKOV, VP .

SOLID STATE COMMUNICATIONS, 1994, 91 (09) :681-685

[5] A HIGH-SPIN CONFIGURATION FOR 6-COORDINATED IRON(IV) IN AN OXYGEN LATTICE [J].

DEMAZEAU, G ;

POUCHARD, M ;

CHEVREAU, N ;

THOMAS, M ;

MENIL, F ;

HAGENMULLER, P .

MATERIALS RESEARCH BULLETIN, 1981, 16 (06) :689-696

[6]

DEMAZEAU G, 1983, REV CHIM MINER, V20, P155

[7] STUDY UTILIZING MOSSBAUER SPECTROMETRY OF SN-119(4+) DIAMAGNETIC PROBES OF A PEROVSKITE-STRUCTURE COMPOUND CONTAINING TETRAVALENT IRON [J].

DEMAZEAU, G ;

FABRITCHNYI, PB ;

FOURNES, L ;

PRESNIAKOV, IA ;

DARRACQ, S ;

GORKOV, VP ;

POKHOLOK, KV ;

ETOURNEAU, J .

SOLID STATE COMMUNICATIONS, 1993, 87 (02) :109-114

[8] CHARACTERIZATION OF 6-COORDINATED IRON(V) IN AN OXIDE LATTICE [J].

DEMAZEAU, G ;

BUFFAT, B ;

MENIL, F ;

FOURNES, L ;

POUCHARD, M ;

DANCE, JM ;

FABRITCHNYI, P ;

HAGENMULLER, P .

MATERIALS RESEARCH BULLETIN, 1981, 16 (11) :1465-1472

[9] 2 NEW IRON(IV) OXIDES WITH HIGH-SPIN CONFIGURATION SRLAMG0.50FE0.50O4 AND SRLAZN0.50FE0.50O4 [J].

DEMAZEAU, G ;

ZHU, LM ;

FOURNES, L ;

POUCHARD, M ;

HAGENMULLER, P .

JOURNAL OF SOLID STATE CHEMISTRY, 1988, 72 (01) :31-37

[10]

FABRICHNYI PB, 1985, ZH VSES KHIM OVA+, V30, P143

← 1 2 3 →