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Ca(BH2)2

Alexandria ALEX

Alex-ID: agm005252950 · Space group: I4_1/amd (#141)

Basic Information

Formula
Ca(BH2)2
Alex-ID
agm005252950
Elements
3
Sites
28
Space group
I4_1/amd (#141)
Crystal system
tetragonal
Volume
361.12
ų
Cell a
9.3540
Å
Cell b
7.8043
Å
Cell c
7.7883
Å
α angle
73.73
°
β angle
53.22
°
γ angle
53.06
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
Ca(BH2)2
Ca
4.00 · 14.3%
B
8.00 · 28.6%
H
16.00 · 57.1%

Energy & Stability

Energy above hull
0.2934
eV/atom
Formation energy
-0.2005
eV/atom
Corrected total energy
-118.8763
eV
Raw total energy
-118.8763
eV

Electronic Structure

Indirect band gap
0.0008
eV
Direct band gap
0.0008
eV
DOS at Fermi level
0.4235
Total magnetisation
0.0000
μB

Additional Information

Prototype ID

AB2C4_2441_spg141

Decomposition

Ca(BH4)2 Ca(BH)12 CaH2

Computed at

2023-05-11 07:10:49.565735

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: agm005252950).

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 agm005252950
data_agm005252950
_cell_length_a     9.35398
_cell_length_b     7.80425
_cell_length_c     7.78833
_cell_angle_alpha  73.72525
_cell_angle_beta   53.21543
_cell_angle_gamma  53.05933
_cell_volume       361.11581
_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 0.62500 0.62500 0.62500 1.00000
  Ca2 Ca 0.62500 0.62500 0.12500 1.00000
  Ca3 Ca 0.12500 0.62500 0.62500 1.00000
  Ca4 Ca 0.62500 0.12500 0.62500 1.00000
  B1 B 0.27555 0.63908 0.81030 1.00000
  B2 B 0.63908 0.27555 0.27506 1.00000
  B3 B 0.27506 0.81030 0.63908 1.00000
  B4 B 0.97445 0.61092 0.43970 1.00000
  B5 B 0.81030 0.27506 0.27555 1.00000
  B6 B 0.61092 0.97445 0.97494 1.00000
  B7 B 0.97494 0.43970 0.61092 1.00000
  B8 B 0.43970 0.97494 0.97445 1.00000
  H1 H 0.16862 0.56141 0.89386 1.00000
  H2 H 0.56141 0.16862 0.37612 1.00000
  H3 H 0.37612 0.89386 0.56141 1.00000
  H4 H 0.08138 0.68859 0.35614 1.00000
  H5 H 0.89386 0.37612 0.16862 1.00000
  H6 H 0.68859 0.08138 0.87388 1.00000
  H7 H 0.87388 0.35614 0.68859 1.00000
  H8 H 0.35614 0.87388 0.08138 1.00000
  H9 H 0.37725 0.56131 0.89368 1.00000
  H10 H 0.56131 0.37725 0.16776 1.00000
  H11 H 0.16776 0.89368 0.56131 1.00000
  H12 H 0.87275 0.68869 0.35632 1.00000
  H13 H 0.89368 0.16776 0.37725 1.00000
  H14 H 0.68869 0.87275 0.08224 1.00000
  H15 H 0.08224 0.35632 0.68869 1.00000
  H16 H 0.35632 0.08224 0.87275 1.00000
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