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BaHgH4

Alexandria ALEX

Alex-ID: agm005772230 · Space group: Pnma (#62)

Basic Information

Formula
BaHgH4
Alex-ID
agm005772230
Elements
3
Sites
24
Space group
Pnma (#62)
Crystal system
orthorhombic
Volume
362.60
ų
Cell a
5.4183
Å
Cell b
7.2995
Å
Cell c
9.1681
Å
α angle
90.00
°
β angle
90.00
°
γ angle
90.00
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
BaHgH4
Ba
4.00 · 16.7%
Hg
4.00 · 16.7%
H
16.00 · 66.7%

Energy & Stability

Energy above hull
0.0787
eV/atom
Formation energy
-0.2459
eV/atom
Corrected total energy
-66.8730
eV
Raw total energy
-66.8730
eV

Electronic Structure

Indirect band gap
2.2783
eV
Direct band gap
2.2843
eV
DOS at Fermi level
0.0000
Total magnetisation
0.0000
μB

Additional Information

Prototype ID

ABC4_133_spg62

Decomposition

BaHg4 HgH4 BaH2

Computed at

2023-07-10 00:03:04.535343

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: agm005772230).

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 agm005772230
data_agm005772230
_cell_length_a     5.41825
_cell_length_b     7.29947
_cell_length_c     9.16807
_cell_angle_alpha  90.00000
_cell_angle_beta   90.00000
_cell_angle_gamma  90.00000
_cell_volume       362.60019
_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
  Ba1 Ba 0.25000 0.15026 0.18297 1.00000
  Ba2 Ba 0.75000 0.84974 0.81703 1.00000
  Ba3 Ba 0.25000 0.34974 0.68297 1.00000
  Ba4 Ba 0.75000 0.65026 0.31703 1.00000
  Hg1 Hg 0.75000 0.32452 0.94969 1.00000
  Hg2 Hg 0.25000 0.82452 0.55031 1.00000
  Hg3 Hg 0.75000 0.17548 0.44969 1.00000
  Hg4 Hg 0.25000 0.67548 0.05031 1.00000
  H1 H 0.25000 0.85174 0.35892 1.00000
  H2 H 0.75000 0.14826 0.64108 1.00000
  H3 H 0.51593 0.83341 0.08956 1.00000
  H4 H 0.25000 0.52017 0.19980 1.00000
  H5 H 0.75000 0.35174 0.14108 1.00000
  H6 H 0.98407 0.83341 0.08956 1.00000
  H7 H 0.25000 0.64826 0.85892 1.00000
  H8 H 0.01593 0.33341 0.41044 1.00000
  H9 H 0.01593 0.16659 0.91044 1.00000
  H10 H 0.75000 0.02017 0.30020 1.00000
  H11 H 0.98407 0.66659 0.58956 1.00000
  H12 H 0.75000 0.47983 0.80020 1.00000
  H13 H 0.48407 0.16659 0.91044 1.00000
  H14 H 0.25000 0.97983 0.69980 1.00000
  H15 H 0.51593 0.66659 0.58956 1.00000
  H16 H 0.48407 0.33341 0.41044 1.00000
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