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HEAS Data Platform · Materials Science Database

K7Ge3BF22

Alexandria ALEX

Alex-ID: agm010965808 · Space group: Imm2 (#44)

Basic Information

Formula
K7Ge3BF22
Alex-ID
agm010965808
Elements
4
Sites
33
Space group
Imm2 (#44)
Crystal system
orthorhombic
Volume
554.99
ų
Cell a
11.0496
Å
Cell b
11.0496
Å
Cell c
11.0496
Å
α angle
148.91
°
β angle
126.43
°
γ angle
63.25
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
K7Ge3BF22
K
7.00 · 21.2%
Ge
3.00 · 9.1%
B
1.00 · 3.0%
F
22.00 · 66.7%

Energy & Stability

Energy above hull
0.0086
eV/atom
Formation energy
-3.1006
eV/atom
Corrected total energy
-161.8159
eV
Raw total energy
-161.8159
eV

Electronic Structure

Indirect band gap
6.0130
eV
Direct band gap
6.0225
eV
DOS at Fermi level
0.0000
Total magnetisation
0.3250
μB

Additional Information

Prototype ID

AB3C7D22_0_spg44

Decomposition

K2GeF6 KBF4

Computed at

2024-11-05 13:37:50.590280

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: agm010965808).

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 agm010965808
data_agm010965808
_cell_length_a     11.04958
_cell_length_b     11.04958
_cell_length_c     11.04958
_cell_angle_alpha  148.90893
_cell_angle_beta   126.42655
_cell_angle_gamma  63.24737
_cell_volume       554.99355
_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 0.23177 0.84559 0.38619 1.00000
  K2 K 0.25711 0.65919 0.59792 1.00000
  K3 K 0.93874 0.34081 0.59792 1.00000
  K4 K 0.54060 0.15441 0.38619 1.00000
  K5 K 0.69356 0.88797 0.80559 1.00000
  K6 K 0.91762 0.11203 0.80559 1.00000
  K7 K 0.41842 0.50000 0.91842 1.00000
  Ge1 Ge 0.30742 0.28222 0.02520 1.00000
  Ge2 Ge 0.19116 0.00000 0.19116 1.00000
  Ge3 Ge 0.74298 0.71778 0.02520 1.00000
  B1 B 0.79832 0.50000 0.29832 1.00000
  F1 F 0.16423 0.44728 0.15012 1.00000
  F2 F 0.13240 0.71305 0.98172 1.00000
  F3 F 0.77504 0.89246 0.33255 1.00000
  F4 F 0.44009 0.10754 0.88258 1.00000
  F5 F 0.26867 0.28695 0.41935 1.00000
  F6 F 0.37154 0.21549 0.15605 1.00000
  F7 F 0.44009 0.55751 0.33255 1.00000
  F8 F 0.77504 0.44249 0.88258 1.00000
  F9 F 0.38098 0.00000 0.38098 1.00000
  F10 F 0.81665 0.43790 0.37874 1.00000
  F11 F 0.94084 0.56210 0.37874 1.00000
  F12 F 0.71467 0.69681 0.41148 1.00000
  F13 F 0.00902 0.00000 0.00902 1.00000
  F14 F 0.16423 0.01410 0.71695 1.00000
  F15 F 0.26867 0.84932 0.98172 1.00000
  F16 F 0.70284 0.55272 0.71695 1.00000
  F17 F 0.71467 0.30319 0.01786 1.00000
  F18 F 0.53980 0.65143 0.88836 1.00000
  F19 F 0.70284 0.98590 0.15012 1.00000
  F20 F 0.23693 0.34857 0.88836 1.00000
  F21 F 0.94056 0.78451 0.15605 1.00000
  F22 F 0.13240 0.15068 0.41935 1.00000
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