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CC=Collection Code: [AB2X4]=ANX Form: [cF56]=Pearson: [e d a]=Wyckoff Symbol: [Al2MgO4]=Structure Type:
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Title
The crystal structure of the phases in the systems Bi-Se, Bi-Te and Sb-Te.
Authors
Imamov, P.M.;Semiletov, S.A.
Reference
Kristallografiya (1971)
15
, 972-978
Link
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Compound
Bi8 Se7
- Bismuth selenide (8/7)
[
A8X7
] [
hP45
] [
d15 c7 a
] [
]
Cell
4.22, 4.22, 85.65, 90., 90., 120.
P3-M1 (164)
V=1320.94
Remarks
R=0.125000 :
At least one temperature factor missing in the paper.
The lattice Parameters are unusual but agree with the paper.
Cell of Bi8 Te7: 4.45, 91.08
45-layer structure, Bi1-Bi6 too short (2.68)
Atom (site) Oxid.
x, y, z, B, Occupancy
Bi1
(2c)
1.75
Bi2
(2c)
1.75
Bi3
(2c)
1.75
Bi4
(2c)
1.75
Bi5
(2d)
1.75
Bi6
(2d)
1.75
Bi7
(2d)
1.75
Bi8
(2d)
1.75
Bi9
(2d)
1.75
Bi10
(2d)
1.75
Bi11
(2d)
1.75
Bi12
(2d)
1.75
Se1
(1a)
-2
Se2
(2c)
-2
Se3
(2c)
-2
Se4
(2c)
-2
Se5
(2d)
-2
Se6
(2d)
-2
Se7
(2d)
-2
Se8
(2d)
-2
Se9
(2d)
-2
Se10
(2d)
-2
Se11
(2d)
-2
0
0
0.06
0
1
0
0
0.13
0
1
0
0
0.33
0
1
0
0
0.4
0
1
0.33
0.66
0.02
0
1
0.33
0.66
0.08
0
1
0.33
0.66
0.28
0
1
0.33
0.66
0.35
0
1
0.33
0.66
0.48
0
1
0.33
0.66
0.55
0
1
0.33
0.66
0.75
0
1
0.33
0.66
0.82
0
1
0
0
0
0
1
0
0
0.2
0
1
0
0
0.26
0
1
0
0
0.46
0
1
0.33
0.66
0.15
0
1
0.33
0.66
0.22
0
1
0.33
0.66
0.42
0
1
0.33
0.66
0.62
0
1
0.33
0.66
0.69
0
1
0.33
0.66
0.88
0
1
0.33
0.66
0.95
0
1
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