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UAl2NiH8

Alexandria ALEX

Alex-ID: agm007167906 · Space group: R-3 (#148)

Alexandria Database API

Basic Information

Formula
UAl2NiH8
Alex-ID
agm007167906
Elements
4
Sites
12
Space group
R-3 (#148)
Crystal system
trigonal
Volume
94.65
ų
Cell a
6.1988
Å
Cell b
6.1988
Å
Cell c
6.1988
Å
α angle
41.54
°
β angle
41.54
°
γ angle
41.54
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
UAl2NiH8
U
1.00 · 8.3%
Al
2.00 · 16.7%
Ni
1.00 · 8.3%
H
8.00 · 66.7%

Energy & Stability

Energy above hull
0.2930
eV/atom
Formation energy
0.0063
eV/atom
Corrected total energy
-50.4052
eV
Raw total energy
-50.4052
eV

Electronic Structure

Indirect band gap
0.0000
eV
Direct band gap
0.0015
eV
DOS at Fermi level
6.4061
Total magnetisation
3.0845
μB

Additional Information

Prototype ID

ABC2D8_757_spg148

Decomposition

Al4Ni3 U4H15 AlH9 AlH3

Computed at

2024-08-07 23:09:32.961659

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: agm007167906).

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 agm007167906
data_agm007167906
_cell_length_a     6.19884
_cell_length_b     6.19884
_cell_length_c     6.19884
_cell_angle_alpha  41.53511
_cell_angle_beta   41.53511
_cell_angle_gamma  41.53511
_cell_volume       94.64602
_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
  U1 U 0.50000 0.50000 0.50000 1.00000
  Al1 Al 0.28173 0.28173 0.28173 1.00000
  Al2 Al 0.71827 0.71827 0.71827 1.00000
  Ni1 Ni 0.00000 0.00000 0.00000 1.00000
  H1 H 0.17604 0.17604 0.17604 1.00000
  H2 H 0.85802 0.31440 0.66344 1.00000
  H3 H 0.82396 0.82396 0.82396 1.00000
  H4 H 0.31440 0.66344 0.85802 1.00000
  H5 H 0.68560 0.33656 0.14198 1.00000
  H6 H 0.66344 0.85802 0.31440 1.00000
  H7 H 0.33656 0.14198 0.68560 1.00000
  H8 H 0.14198 0.68560 0.33656 1.00000
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