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ICSD for WWW : Details

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CC=Collection Code: [AB2X4]=ANX Form: [cF56]=Pearson: [e d a]=Wyckoff Symbol: [Al2MgO4]=Structure Type:
***Click the ANX, Pearson or Wyckoff Symbol to find structures with that symbol***.
CC=63641 Help
TitleThe oxygen defect perovskite Ba La4 Cu5 O13.4, a metallic conductor.
AuthorsMichel, C.;Er-Rakho, L.;Raveau, B.
ReferenceMaterials Research Bulletin (1985) 20, 667-671
Link XRef SCOPUS SCIRUS Google
CompoundBa1 Cu5 La4 O13.4 - Barium tetralanthanum pentacopper 13.4-oxide [A5B5X13] [tP23] [k2 j3 e d b a] []
Cell8.644(4), 8.644(4), 3.867(3), 90., 90., 90.
P4/M (83) V=288.94
RemarksR=0.083000 : DEF
The coordinates are those given in the paper but the atomic distances do not agree with those calculated during testing.The coordinates are probably correct.
Calculated density unusual but tolerable.
Good conductor, O-vacancies evenly distributed, y(Cu2)=.186 would yield more reasonable distances

Atom (site) Oxid. x, y, z, B, Occupancy
Ba1(1d)2
La1(1d)3
Ba2(4k)2
La2(4k)3
Cu1(1a)2.56
Cu2(4j)2.56
O1(1b)-2
O2(2e)-2
O3(4j)-2
O4(4j)-2
O5(4k)-2
0.50.50.51.0.2
0.50.50.51.0.8
0.124(1)0.277(1)0.51.0.2
0.124(1)0.277(1)0.51.0.8
0001.1
0.415(3)0.168(2)01.1
000.51.0.893
00.501.0.893
0.261(7)0.384(8)01.0.893
0.229(8)0.063(6)01.0.893
0.428(10)0.155(6)0.51.0.893

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