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HEAS Data Platform · Materials Science Database

Na2Cu4As2BrO9

Alexandria ALEX

Alex-ID: agm010769040 · Space group: Cmcm (#63)

Basic Information

Formula
Na2Cu4As2BrO9
Alex-ID
agm010769040
Elements
5
Sites
36
Space group
Cmcm (#63)
Crystal system
orthorhombic
Volume
508.61
ų
Cell a
8.8719
Å
Cell b
8.8719
Å
Cell c
6.6720
Å
α angle
90.00
°
β angle
90.00
°
γ angle
104.42
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
Na2Cu4As2BrO9
Na
4.00 · 11.1%
Cu
8.00 · 22.2%
As
4.00 · 11.1%
Br
2.00 · 5.6%
O
18.00 · 50.0%

Energy & Stability

Energy above hull
0.0252
eV/atom
Formation energy
-1.3664
eV/atom
Corrected total energy
-198.9379
eV
Raw total energy
-186.2967
eV

Electronic Structure

Indirect band gap
0.0000
eV
Direct band gap
0.0635
eV
DOS at Fermi level
12.0265
Total magnetisation
1.7759
μB

Additional Information

Prototype ID

AB2C2D4E9_0_spg63

Decomposition

Na5As3O10 NaAsO3 Cu3Br4 CuO As2O3

Computed at

2025-03-06 22:38:39

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: agm010769040).

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 agm010769040
data_agm010769040
_cell_length_a     8.87192
_cell_length_b     8.87192
_cell_length_c     6.67196
_cell_angle_alpha  90.00000
_cell_angle_beta   90.00000
_cell_angle_gamma  104.41973
_cell_volume       508.61227
_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
  Na1 Na 0.69740 0.30260 0.00000 1.00000
  Na2 Na 0.69740 0.30260 0.50000 1.00000
  Na3 Na 0.30260 0.69740 0.00000 1.00000
  Na4 Na 0.30260 0.69740 0.50000 1.00000
  Cu1 Cu 0.91663 0.69510 0.25000 1.00000
  Cu2 Cu 0.30490 0.08337 0.75000 1.00000
  Cu3 Cu 0.08337 0.30490 0.75000 1.00000
  Cu4 Cu 0.69510 0.91663 0.25000 1.00000
  Cu5 Cu 0.00000 0.00000 0.50000 1.00000
  Cu6 Cu 0.00000 0.00000 0.00000 1.00000
  Cu7 Cu 0.37977 0.37977 0.25000 1.00000
  Cu8 Cu 0.62023 0.62023 0.75000 1.00000
  As1 As 0.03996 0.37057 0.25000 1.00000
  As2 As 0.62943 0.96004 0.75000 1.00000
  As3 As 0.96004 0.62943 0.75000 1.00000
  As4 As 0.37057 0.03996 0.25000 1.00000
  Br1 Br 0.60757 0.60757 0.25000 1.00000
  Br2 Br 0.39243 0.39243 0.75000 1.00000
  O1 O 0.01074 0.25336 0.46068 1.00000
  O2 O 0.74664 0.98926 0.53932 1.00000
  O3 O 0.01074 0.25336 0.03932 1.00000
  O4 O 0.74664 0.98926 0.96068 1.00000
  O5 O 0.98926 0.74664 0.53932 1.00000
  O6 O 0.25336 0.01074 0.46068 1.00000
  O7 O 0.98926 0.74664 0.96068 1.00000
  O8 O 0.25336 0.01074 0.03932 1.00000
  O9 O 0.89325 0.46799 0.25000 1.00000
  O10 O 0.53201 0.10675 0.75000 1.00000
  O11 O 0.10675 0.53201 0.75000 1.00000
  O12 O 0.46799 0.89325 0.25000 1.00000
  O13 O 0.22428 0.49920 0.25000 1.00000
  O14 O 0.50080 0.77572 0.75000 1.00000
  O15 O 0.77572 0.50080 0.75000 1.00000
  O16 O 0.49920 0.22428 0.25000 1.00000
  O17 O 0.91597 0.91597 0.25000 1.00000
  O18 O 0.08403 0.08403 0.75000 1.00000
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