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Mg4HPb2

Alexandria ALEX

Alex-ID: agm006035554 · Space group: Pnma (#62)

Basic Information

Formula
Mg4HPb2
Alex-ID
agm006035554
Elements
3
Sites
28
Space group
Pnma (#62)
Crystal system
orthorhombic
Volume
597.84
ų
Cell a
6.2969
Å
Cell b
8.6514
Å
Cell c
10.9742
Å
α angle
90.00
°
β angle
90.00
°
γ angle
90.00
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
Mg4HPb2
Mg
16.00 · 57.1%
H
4.00 · 14.3%
Pb
8.00 · 28.6%

Energy & Stability

Energy above hull
0.0446
eV/atom
Formation energy
-0.0648
eV/atom
Corrected total energy
-69.9543
eV
Raw total energy
-69.9543
eV

Electronic Structure

Indirect band gap
0.0000
eV
Direct band gap
0.0265
eV
DOS at Fermi level
11.2091
Total magnetisation
0.0000
μB

Additional Information

Prototype ID

AB2C4_9_spg62

Decomposition

Mg2Pb MgH2 MgPb

Computed at

2023-07-10 13:41:49.725286

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: agm006035554).

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 agm006035554
data_agm006035554
_cell_length_a     6.29687
_cell_length_b     8.65136
_cell_length_c     10.97424
_cell_angle_alpha  90.00000
_cell_angle_beta   90.00000
_cell_angle_gamma  90.00000
_cell_volume       597.83853
_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
  Mg1 Mg 0.49971 0.64602 0.84349 1.00000
  Mg2 Mg 0.50029 0.35398 0.15651 1.00000
  Mg3 Mg 0.50029 0.85398 0.34349 1.00000
  Mg4 Mg 0.99971 0.35398 0.15651 1.00000
  Mg5 Mg 0.49971 0.14602 0.65651 1.00000
  Mg6 Mg 0.00029 0.64602 0.84349 1.00000
  Mg7 Mg 0.00029 0.14602 0.65651 1.00000
  Mg8 Mg 0.99971 0.85398 0.34349 1.00000
  Mg9 Mg 0.75000 0.98119 0.88011 1.00000
  Mg10 Mg 0.25000 0.01881 0.11989 1.00000
  Mg11 Mg 0.25000 0.51881 0.38011 1.00000
  Mg12 Mg 0.75000 0.48119 0.61989 1.00000
  Mg13 Mg 0.75000 0.19359 0.40166 1.00000
  Mg14 Mg 0.25000 0.80641 0.59834 1.00000
  Mg15 Mg 0.25000 0.30641 0.90166 1.00000
  Mg16 Mg 0.75000 0.69359 0.09834 1.00000
  H1 H 0.75000 0.75274 0.92234 1.00000
  H2 H 0.25000 0.24726 0.07766 1.00000
  H3 H 0.25000 0.74726 0.42234 1.00000
  H4 H 0.75000 0.25274 0.57766 1.00000
  Pb1 Pb 0.75000 0.54565 0.34968 1.00000
  Pb2 Pb 0.25000 0.45436 0.65032 1.00000
  Pb3 Pb 0.25000 0.95435 0.84968 1.00000
  Pb4 Pb 0.75000 0.04564 0.15032 1.00000
  Pb5 Pb 0.75000 0.84325 0.60283 1.00000
  Pb6 Pb 0.25000 0.15675 0.39717 1.00000
  Pb7 Pb 0.25000 0.65675 0.10283 1.00000
  Pb8 Pb 0.75000 0.34325 0.89717 1.00000
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