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Ac2Si7Pt12

Alexandria ALEX

Alex-ID: agm005659912 · Space group: P-6 (#174)

Basic Information

Formula
Ac2Si7Pt12
Alex-ID
agm005659912
Elements
3
Sites
21
Space group
P-6 (#174)
Crystal system
hexagonal
Volume
356.98
ų
Cell a
4.0657
Å
Cell b
10.0690
Å
Cell c
10.0690
Å
α angle
120.00
°
β angle
90.00
°
γ angle
90.00
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
Ac2Si7Pt12
Ac
2.00 · 9.5%
Si
7.00 · 33.3%
Pt
12.00 · 57.1%

Energy & Stability

Energy above hull
0.0468
eV/atom
Formation energy
-0.8139
eV/atom
Corrected total energy
-136.3264
eV
Raw total energy
-136.3264
eV

Electronic Structure

Indirect band gap
0.0000
eV
Direct band gap
0.0000
eV
DOS at Fermi level
8.6271
Total magnetisation
0.0000
μB

Additional Information

Prototype ID

A2B7C12_1_spg174

Decomposition

Ac(SiPt)2 AcSiPt3 SiPt2

Computed at

2023-06-21 09:13:58.097094

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: agm005659912).

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 agm005659912
data_agm005659912
_cell_length_a     4.06568
_cell_length_b     10.06904
_cell_length_c     10.06903
_cell_angle_alpha  119.99997
_cell_angle_beta   89.99999
_cell_angle_gamma  90.00001
_cell_volume       356.97600
_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 0.50000 0.00000 0.00000 1.00000
  Ac2 Ac 1.00000 0.66667 0.33333 1.00000
  Si1 Si 0.99996 0.33333 0.66667 1.00000
  Si2 Si 0.00000 0.04795 0.77732 1.00000
  Si3 Si 0.00000 0.72936 0.95205 1.00000
  Si4 Si 0.00000 0.22268 0.27064 1.00000
  Si5 Si 0.50000 0.62405 0.56126 1.00000
  Si6 Si 0.50000 0.93721 0.37595 1.00000
  Si7 Si 0.50000 0.43874 0.06279 1.00000
  Pt1 Pt 0.50000 0.88540 0.59764 1.00000
  Pt2 Pt 0.50000 0.71223 0.11460 1.00000
  Pt3 Pt 0.50000 0.40236 0.28777 1.00000
  Pt4 Pt 0.50001 0.21714 0.80758 1.00000
  Pt5 Pt 0.50001 0.59044 0.78286 1.00000
  Pt6 Pt 0.50001 0.19242 0.40957 1.00000
  Pt7 Pt 0.00000 0.06608 0.54633 1.00000
  Pt8 Pt 0.00000 0.48025 0.93392 1.00000
  Pt9 Pt 0.00000 0.45367 0.51974 1.00000
  Pt10 Pt 1.00000 0.78304 0.73507 1.00000
  Pt11 Pt 1.00000 0.95203 0.21696 1.00000
  Pt12 Pt 1.00000 0.26493 0.04797 1.00000
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