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CC=Collection Code: [AB2X4]=ANX Form: [cF56]=Pearson: [e d a]=Wyckoff Symbol: [Al2MgO4]=Structure Type:
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CC=64657
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Title
Ba2 (Pr(4+)).3 (Pr(3+)).7 (Cu(3+)).7 (Cu(2+))2.3 O7: Crystal growth, structure and magnetic properties..
Authors
Moran, E.;Amador, U.;Barahona, M.;Alario-Franco, M.A.;Vegas, A.;Rodriguez-Carvajal, J.
Reference
Physica C (1988)
153
, 423-424
Link
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Compound
Ba2 Cu3 O7 Pr1
- Dibarium praseodymium(IV) tricopper oxide
[
AB2C3X7
] [
tP13
] [
i h g2 f d a
] [
]
Cell
3.8918(2), 3.8918(2), 11.6484(8), 90., 90., 90.
P4/MMM (123)
V=176.43
Remarks
R=0.042400 : D
Atom (site) Oxid.
x, y, z, B, Occupancy
Ba1
(2h)
2
Pr1
(1d)
4
Cu1
(1a)
2
Cu2
(2g)
2
O1
(2g)
-2
O2
(4i)
-2
O3
(2f)
-2
0.5
0.5
0.18
0
1
0.5
0.5
0.5
0
1
0
0
0
0
1
0
0
0.35
0
1
0
0
0.15
0
1
0
0.5
0.36
0
1
0
0.5
0
0
0.5
Atom (site) Oxid.
U11, U22, U33, U12, U13, U23
Ba1
(2h)
2
Pr1
(1d)
4
Cu1
(1a)
2
Cu2
(2g)
2
O1
(2g)
-2
O2
(4i)
-2
O3
(2f)
-2
0.01
0.01
0.02
0
0
0
0.00
0.00
0.00
0
0
0
0.04
0.04
0.00
0
0
0
0.00
0.00
0.00
0
0
0
0.12
0.12
0.01
0
0
0
0.00
0.00
0.01
0
0
0
0.25
0.25
0.00
0
0
0
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