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Pr4H9

Alexandria ALEX

Alex-ID: agm006245437 · Space group: I4/mmm (#139)

Basic Information

Formula
Pr4H9
Alex-ID
agm006245437
Elements
2
Sites
13
Space group
I4/mmm (#139)
Crystal system
tetragonal
Volume
167.35
ų
Cell a
6.7500
Å
Cell b
6.7500
Å
Cell c
6.7500
Å
α angle
131.82
°
β angle
131.82
°
γ angle
70.51
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
Pr4H9
Pr
4.00 · 30.8%
H
9.00 · 69.2%

Energy & Stability

Energy above hull
0.0000
eV/atom
Formation energy
-0.6897
eV/atom
Corrected total energy
-57.2589
eV
Raw total energy
-57.2589
eV

Electronic Structure

Indirect band gap
0.0000
eV
Direct band gap
0.0000
eV
DOS at Fermi level
2.6949
Total magnetisation
0.0000
μB

Additional Information

Prototype ID

A4B9_4_spg139

Decomposition

Pr4H9

Computed at

2024-02-22 02:08:27

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: agm006245437).

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 agm006245437
data_agm006245437
_cell_length_a     6.74998
_cell_length_b     6.74998
_cell_length_c     6.74998
_cell_angle_alpha  131.82264
_cell_angle_beta   131.82264
_cell_angle_gamma  70.50928
_cell_volume       167.34524
_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
  Pr1 Pr 0.00000 0.50000 0.50000 1.00000
  Pr2 Pr 0.50000 0.00000 0.50000 1.00000
  Pr3 Pr 0.74540 0.74540 0.00000 1.00000
  Pr4 Pr 0.25460 0.25460 0.00000 1.00000
  H1 H 0.36777 0.36777 0.48199 1.00000
  H2 H 0.88578 0.88578 0.51801 1.00000
  H3 H 0.11422 0.11422 0.48199 1.00000
  H4 H 0.11422 0.63223 0.00000 1.00000
  H5 H 0.36777 0.88578 0.00000 1.00000
  H6 H 0.50000 0.50000 0.00000 1.00000
  H7 H 0.63223 0.63223 0.51801 1.00000
  H8 H 0.63223 0.11422 0.00000 1.00000
  H9 H 0.88578 0.36777 0.00000 1.00000
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