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Bi4O9

Alexandria ALEX

Alex-ID: agm005285646 · Space group: P4/m (#83)

Alexandria Database API

Basic Information

Formula
Bi4O9
Alex-ID
agm005285646
Elements
2
Sites
26
Space group
P4/m (#83)
Crystal system
tetragonal
Volume
450.63
ų
Cell a
10.4564
Å
Cell b
10.4564
Å
Cell c
4.1215
Å
α angle
90.00
°
β angle
90.00
°
γ angle
90.00
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
Bi4O9
Bi
8.00 · 30.8%
O
18.00 · 69.2%

Energy & Stability

Energy above hull
0.2541
eV/atom
Formation energy
-1.1335
eV/atom
Corrected total energy
-149.7663
eV
Raw total energy
-137.1250
eV

Electronic Structure

Indirect band gap
0.0000
eV
Direct band gap
0.0000
eV
DOS at Fermi level
7.5846
Total magnetisation
0.0000
μB

Additional Information

Prototype ID

A4B9_200_spg83

Decomposition

BiO2 BiO4

Computed at

2023-05-10 21:15:36.708682

Citation

Alexandria website
https://alexandria.icams.rub.de/
Attribution

The crystal structure and related material properties of this entry were obtained from the Alexandria database (Alex-ID: agm005285646).

Reference

Th. Cavignac, J. Schmidt, P.-P. De Breuck, A. Loew, T. F. T. Cerqueira, H.-C. Wang, A. Bochkarev, Y. Lysogorskiy, A. H. Romero, R. Drautz, S. Botti and M. A. L. Marques. AI-Driven expansion and application of the Alexandria database. J. Phys. Mater. 9, 025014 (2026). https://doi.org/10.1088/2515-7639/ae6620

BibTeX 
@article{Cavignac2026Alexandria,
  author  = {Cavignac, Th{\'e}o and Schmidt, Jonathan and De Breuck, Pierre-Paul and Loew, Antoine
             and Cerqueira, Tiago F. T. and Wang, Hai-Chen and Bochkarev, Anton
             and Lysogorskiy, Yury and Romero, Aldo H. and Drautz, Ralf and Botti, Silvana
             and Marques, Miguel A. L.},
  title   = {{AI}-Driven expansion and application of the {A}lexandria database},
  journal = {Journal of Physics: Materials},
  year    = {2026},
  volume  = {9},
  number  = {2},
  pages   = {025014},
  doi     = {10.1088/2515-7639/ae6620},
  url     = {https://doi.org/10.1088/2515-7639/ae6620}
}

3D Crystal Structure Rendering

Loading 3D structure…

Style: Ball & Stick
Raw CIF Data 
# CIF generated by HEAS from Alexandria entry agm005285646
data_agm005285646
_cell_length_a     10.45642
_cell_length_b     10.45642
_cell_length_c     4.12149
_cell_angle_alpha  90.00000
_cell_angle_beta   90.00000
_cell_angle_gamma  90.00000
_cell_volume       450.63000
_symmetry_space_group_name_H-M 'P 1'
_symmetry_Int_Tables_number 1
loop_
_symmetry_equiv_pos_as_xyz
  'x, y, z'
loop_
_atom_site_label
_atom_site_type_symbol
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_occupancy
  Bi1 Bi 0.78277 0.08750 0.50282 1.00000
  Bi2 Bi 0.08750 0.21723 0.49718 1.00000
  Bi3 Bi 0.58750 0.71723 0.50282 1.00000
  Bi4 Bi 0.28277 0.58750 0.49718 1.00000
  Bi5 Bi 0.21723 0.91250 0.50282 1.00000
  Bi6 Bi 0.41250 0.28277 0.50282 1.00000
  Bi7 Bi 0.71723 0.41250 0.49718 1.00000
  Bi8 Bi 0.91250 0.78277 0.49718 1.00000
  O1 O 0.00000 0.00000 0.50000 1.00000
  O2 O 0.50000 0.50000 0.50000 1.00000
  O3 O 0.94925 0.76673 0.99742 1.00000
  O4 O 0.73327 0.44925 0.99742 1.00000
  O5 O 0.26673 0.55075 0.99742 1.00000
  O6 O 0.05075 0.23327 0.99742 1.00000
  O7 O 0.55075 0.73327 0.00258 1.00000
  O8 O 0.76673 0.05075 0.00258 1.00000
  O9 O 0.23327 0.94925 0.00258 1.00000
  O10 O 0.44925 0.26673 0.00258 1.00000
  O11 O 0.27570 0.12052 0.50143 1.00000
  O12 O 0.37948 0.77570 0.50143 1.00000
  O13 O 0.62052 0.22430 0.50143 1.00000
  O14 O 0.72430 0.87948 0.50143 1.00000
  O15 O 0.77570 0.62052 0.49857 1.00000
  O16 O 0.12052 0.72430 0.49857 1.00000
  O17 O 0.87948 0.27570 0.49857 1.00000
  O18 O 0.22430 0.37948 0.49857 1.00000
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