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Ac2Mg12Pb7

Alexandria ALEX

Alex-ID: agm005675022 · Space group: P-3 (#147)

Alexandria Database API

Basic Information

Formula
Ac2Mg12Pb7
Alex-ID
agm005675022
Elements
3
Sites
21
Space group
P-3 (#147)
Crystal system
trigonal
Volume
574.86
ų
Cell a
4.6889
Å
Cell b
11.8982
Å
Cell c
11.8982
Å
α angle
120.00
°
β angle
90.00
°
γ angle
90.00
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
Ac2Mg12Pb7
Ac
2.00 · 9.5%
Mg
12.00 · 57.1%
Pb
7.00 · 33.3%

Energy & Stability

Energy above hull
0.0205
eV/atom
Formation energy
-0.1698
eV/atom
Corrected total energy
-56.8752
eV
Raw total energy
-56.8752
eV

Electronic Structure

Indirect band gap
0.0000
eV
Direct band gap
0.0000
eV
DOS at Fermi level
8.9439
Total magnetisation
-0.0001
μB

Additional Information

Prototype ID

A2B7C12_5_spg147

Decomposition

AcMg3Pb2 Mg2Pb

Computed at

2023-06-21 08:03:24.160692

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: agm005675022).

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 agm005675022
data_agm005675022
_cell_length_a     4.68892
_cell_length_b     11.89817
_cell_length_c     11.89817
_cell_angle_alpha  120.00001
_cell_angle_beta   90.00000
_cell_angle_gamma  90.00000
_cell_volume       574.86161
_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
  Ac1 Ac 0.25305 0.33333 0.66667 1.00000
  Ac2 Ac 0.74695 0.66667 0.33333 1.00000
  Mg1 Mg 0.25166 0.61307 0.03826 1.00000
  Mg2 Mg 0.25166 0.42519 0.38693 1.00000
  Mg3 Mg 0.25166 0.96174 0.57481 1.00000
  Mg4 Mg 0.74834 0.38693 0.96174 1.00000
  Mg5 Mg 0.74834 0.57481 0.61307 1.00000
  Mg6 Mg 0.74834 0.03826 0.42519 1.00000
  Mg7 Mg 0.24089 0.10526 0.25818 1.00000
  Mg8 Mg 0.24089 0.15291 0.89474 1.00000
  Mg9 Mg 0.24089 0.74182 0.84709 1.00000
  Mg10 Mg 0.75911 0.89474 0.74182 1.00000
  Mg11 Mg 0.75911 0.84709 0.10526 1.00000
  Mg12 Mg 0.75911 0.25818 0.15291 1.00000
  Pb1 Pb 0.50000 0.00000 0.00000 1.00000
  Pb2 Pb 0.24878 0.86659 0.28937 1.00000
  Pb3 Pb 0.24878 0.42278 0.13341 1.00000
  Pb4 Pb 0.24878 0.71063 0.57722 1.00000
  Pb5 Pb 0.75122 0.13341 0.71063 1.00000
  Pb6 Pb 0.75122 0.57722 0.86659 1.00000
  Pb7 Pb 0.75122 0.28937 0.42278 1.00000
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