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Be2H2F7

Alexandria ALEX

Alex-ID: agm005570710 · Space group: C2/c (#15)

Basic Information

Formula
Be2H2F7
Alex-ID
agm005570710
Elements
3
Sites
22
Space group
C2/c (#15)
Crystal system
monoclinic
Volume
284.14
ų
Cell a
6.8365
Å
Cell b
6.8365
Å
Cell c
7.0785
Å
α angle
75.82
°
β angle
75.82
°
γ angle
108.79
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
Be2H2F7
Be
4.00 · 18.2%
H
4.00 · 18.2%
F
14.00 · 63.6%

Energy & Stability

Energy above hull
0.0583
eV/atom
Formation energy
-2.6001
eV/atom
Corrected total energy
-104.9527
eV
Raw total energy
-104.9527
eV

Electronic Structure

Indirect band gap
1.3291
eV
Direct band gap
1.3876
eV
DOS at Fermi level
-0.0012
Total magnetisation
2.1371
μB

Additional Information

Prototype ID

A2B2C7_764_spg15

Decomposition

HF8 HF BeF2

Computed at

2023-06-04 19:23:07.440010

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: agm005570710).

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 agm005570710
data_agm005570710
_cell_length_a     6.83649
_cell_length_b     6.83649
_cell_length_c     7.07851
_cell_angle_alpha  75.82353
_cell_angle_beta   75.82353
_cell_angle_gamma  108.79046
_cell_volume       284.13943
_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
  Be1 Be 0.31205 0.11578 0.16651 1.00000
  Be2 Be 0.11578 0.31205 0.66651 1.00000
  Be3 Be 0.88422 0.68795 0.33349 1.00000
  Be4 Be 0.68795 0.88422 0.83349 1.00000
  H1 H 0.63038 0.81030 0.53082 1.00000
  H2 H 0.18970 0.36962 0.96918 1.00000
  H3 H 0.81030 0.63038 0.03082 1.00000
  H4 H 0.36962 0.18970 0.46918 1.00000
  F1 F 0.85939 0.51679 0.54290 1.00000
  F2 F 0.25156 0.31957 0.10431 1.00000
  F3 F 0.41965 0.13026 0.33625 1.00000
  F4 F 0.10056 0.89944 0.25000 1.00000
  F5 F 0.51679 0.85939 0.04290 1.00000
  F6 F 0.31957 0.25156 0.60431 1.00000
  F7 F 0.13026 0.41965 0.83625 1.00000
  F8 F 0.86974 0.58035 0.16375 1.00000
  F9 F 0.68043 0.74844 0.39569 1.00000
  F10 F 0.48321 0.14061 0.95710 1.00000
  F11 F 0.89944 0.10056 0.75000 1.00000
  F12 F 0.58035 0.86974 0.66375 1.00000
  F13 F 0.74844 0.68043 0.89569 1.00000
  F14 F 0.14061 0.48321 0.45710 1.00000
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