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AlH9Pd2

Alexandria ALEX

Alex-ID: agm099478554 · Space group: P1 (#1)

Basic Information

Formula
AlH9Pd2
Alex-ID
agm099478554
Elements
3
Sites
24
Space group
P1 (#1)
Crystal system
triclinic
Volume
244.75
ų
Cell a
7.1112
Å
Cell b
7.4894
Å
Cell c
4.8636
Å
α angle
71.57
°
β angle
94.59
°
γ angle
93.68
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
AlH9Pd2
Al
2.00 · 8.3%
H
18.00 · 75.0%
Pd
4.00 · 16.7%

Energy & Stability

Energy above hull
0.1429
eV/atom
Formation energy
-0.0617
eV/atom
Corrected total energy
-88.0583
eV
Raw total energy
-88.0583
eV

Electronic Structure

Indirect band gap
1.1485
eV
Direct band gap
1.3663
eV
DOS at Fermi level
-0.0046
Total magnetisation
0.0000
μB

Additional Information

Prototype ID

AB2C9_1123_spg1

Decomposition

AlPd2 H2

Computed at

2025-06-14 11:46:12

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: agm099478554).

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 agm099478554
data_agm099478554
_cell_length_a     7.11124
_cell_length_b     7.48943
_cell_length_c     4.86360
_cell_angle_alpha  71.57206
_cell_angle_beta   94.58660
_cell_angle_gamma  93.67535
_cell_volume       244.75497
_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
  Al1 Al 0.06764 0.83460 0.53401 1.00000
  Al2 Al 0.97156 0.37585 0.11032 1.00000
  H1 H 0.88897 0.94205 0.27195 1.00000
  H2 H 0.82100 0.22657 0.69115 1.00000
  H3 H 0.01194 0.90135 0.81775 1.00000
  H4 H 0.76314 0.49204 0.33260 1.00000
  H5 H 0.09922 0.55066 0.24603 1.00000
  H6 H 0.23685 0.16279 0.16585 1.00000
  H7 H 0.94746 0.61143 0.75495 1.00000
  H8 H 0.15605 0.23715 0.71459 1.00000
  H9 H 0.58626 0.74119 0.72158 1.00000
  H10 H 0.53234 0.82689 0.10817 1.00000
  H11 H 0.58700 0.03862 0.57127 1.00000
  H12 H 0.36902 0.52648 0.57103 1.00000
  H13 H 0.69090 0.74725 0.75402 1.00000
  H14 H 0.43992 0.84831 0.15301 1.00000
  H15 H 0.50888 0.06950 0.43288 1.00000
  H16 H 0.47239 0.47981 0.59282 1.00000
  H17 H 0.29106 0.83032 0.53431 1.00000
  H18 H 0.54594 0.40568 0.06858 1.00000
  Pd1 Pd 0.01557 0.08440 0.99432 1.00000
  Pd2 Pd 0.99030 0.45768 0.57081 1.00000
  Pd3 Pd 0.34252 0.32778 0.90475 1.00000
  Pd4 Pd 0.66409 0.28161 0.38325 1.00000
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