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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=43175
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Title
Characterization of the structure of La D2.5 by neutron powder diffraction.
Authors
Udovic, D.J.;Huang, Q.;Rush, J.J.
Reference
IC&volume=122&fpage=151&details=yes target=icsd_help>Journal of Solid State Chemistry (1996)
122
, 151-159
Link
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Compound
D2.43 La1
- Lanthanum deuteride (1/2.5) - LT
[
A8X19
] [
tI27
] [
f e b a
] [
]
Cell
5.6194(1), 5.6194, 11.2732(2), 90., 90., 90.
I41/AMDS (141)
V=355.98
Remarks
R=0.064500 : D N T =350 :
Cell at 375 K: 5.6243, 11.2704
Becomes cubic above 385 K
Cell at 320 K: 5.6139, 11.2827
Atom (site) Oxid.
x, y, z, B, Occupancy
La1
(8e)
2.43
D1
(16f)
-1
D2
(4a)
-1
D3
(4b)
-1
0
0
0.75
0.61
1
0.26
0.25
0.12
1.57
0.97
0
0
0
3.1(
0.72
0
0
0.5
3.1(
0.25
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