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Ca2AlH2OF7

Alexandria ALEX

Alex-ID: agm005221572 · Space group: P-1 (#2)

Basic Information

Formula
Ca2AlH2OF7
Alex-ID
agm005221572
Elements
5
Sites
26
Space group
P-1 (#2)
Crystal system
triclinic
Volume
301.66
ų
Cell a
5.9390
Å
Cell b
5.8730
Å
Cell c
9.3624
Å
α angle
79.17
°
β angle
76.95
°
γ angle
73.03
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
Ca2AlH2OF7
Ca
4.00 · 15.4%
Al
2.00 · 7.7%
H
4.00 · 15.4%
O
2.00 · 7.7%
F
14.00 · 53.8%

Energy & Stability

Energy above hull
0.0163
eV/atom
Formation energy
-3.4660
eV/atom
Corrected total energy
-148.3773
eV
Raw total energy
-146.9727
eV

Electronic Structure

Indirect band gap
6.7527
eV
Direct band gap
6.7527
eV
DOS at Fermi level
0.0000
Total magnetisation
0.0000
μB

Additional Information

Prototype ID

ABC2D2E7_56_spg2

Decomposition

CaAlF5 H2O CaF2

Computed at

2023-05-10 14:00:08.696559

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: agm005221572).

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 agm005221572
data_agm005221572
_cell_length_a     5.93901
_cell_length_b     5.87304
_cell_length_c     9.36244
_cell_angle_alpha  79.17292
_cell_angle_beta   76.94733
_cell_angle_gamma  73.03217
_cell_volume       301.65994
_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
  Ca1 Ca 0.41446 0.41374 0.35848 1.00000
  Ca2 Ca 0.58554 0.58626 0.64152 1.00000
  Ca3 Ca 0.84242 0.84369 0.20101 1.00000
  Ca4 Ca 0.15758 0.15631 0.79899 1.00000
  Al1 Al 0.50000 0.50000 0.00000 1.00000
  Al2 Al 0.00000 0.00000 0.50000 1.00000
  H1 H 0.13210 0.21438 0.13014 1.00000
  H2 H 0.86790 0.78562 0.86986 1.00000
  H3 H 0.29262 0.95912 0.10417 1.00000
  H4 H 0.70738 0.04088 0.89583 1.00000
  O1 O 0.14091 0.07333 0.08472 1.00000
  O2 O 0.85909 0.92667 0.91528 1.00000
  F1 F 0.55020 0.68158 0.12307 1.00000
  F2 F 0.44980 0.31842 0.87693 1.00000
  F3 F 0.19065 0.54427 0.10621 1.00000
  F4 F 0.80935 0.45573 0.89379 1.00000
  F5 F 0.58807 0.23263 0.13245 1.00000
  F6 F 0.41193 0.76737 0.86755 1.00000
  F7 F 0.17103 0.17976 0.36826 1.00000
  F8 F 0.82897 0.82024 0.63174 1.00000
  F9 F 0.75499 0.10747 0.39210 1.00000
  F10 F 0.24501 0.89253 0.60790 1.00000
  F11 F 0.11390 0.75819 0.37933 1.00000
  F12 F 0.88610 0.24181 0.62067 1.00000
  F13 F 0.65574 0.63206 0.39265 1.00000
  F14 F 0.34426 0.36794 0.60735 1.00000
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