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K2Br(OF2)2

Alexandria ALEX

Alex-ID: agm004564784 · Space group: C2/m (#12)

Basic Information

Formula
K2Br(OF2)2
Alex-ID
agm004564784
Elements
4
Sites
9
Space group
C2/m (#12)
Crystal system
monoclinic
Volume
145.13
ų
Cell a
4.8599
Å
Cell b
5.8287
Å
Cell c
5.8287
Å
α angle
61.56
°
β angle
91.21
°
γ angle
91.21
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
K2Br(OF2)2
K
2.00 · 22.2%
Br
1.00 · 11.1%
O
2.00 · 22.2%
F
4.00 · 44.4%

Energy & Stability

Energy above hull
0.2402
eV/atom
Formation energy
-1.6417
eV/atom
Corrected total energy
-34.2510
eV
Raw total energy
-32.8464
eV

Electronic Structure

Indirect band gap
0.2966
eV
Direct band gap
0.8357
eV
DOS at Fermi level
0.5588
Total magnetisation
1.0037
μB

Additional Information

Prototype ID

AB2C2D4_99_spg2

Decomposition

KBrF4 KO2F KBrF2

Computed at

2022-06-19 18:23:01.318434

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: agm004564784).

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 agm004564784
data_agm004564784
_cell_length_a     4.85987
_cell_length_b     5.82870
_cell_length_c     5.82870
_cell_angle_alpha  61.55634
_cell_angle_beta   91.21099
_cell_angle_gamma  91.21099
_cell_volume       145.13304
_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
  K1 K 0.22009 0.66156 0.66156 1.00000
  K2 K 0.77991 0.33844 0.33844 1.00000
  Br1 Br 0.50000 0.00000 0.00000 1.00000
  O1 O 0.29338 0.13675 0.13675 1.00000
  O2 O 0.70662 0.86325 0.86325 1.00000
  F1 F 0.27440 0.66232 0.16184 1.00000
  F2 F 0.72560 0.83816 0.33768 1.00000
  F3 F 0.72560 0.33768 0.83816 1.00000
  F4 F 0.27440 0.16184 0.66232 1.00000
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