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Ac3SI7

Alexandria ALEX

Alex-ID: agm005961355 · Space group: P3m1 (#156)

Basic Information

Formula
Ac3SI7
Alex-ID
agm005961355
Elements
3
Sites
11
Space group
P3m1 (#156)
Crystal system
trigonal
Volume
610.24
ų
Cell a
7.7393
Å
Cell b
9.5419
Å
Cell c
9.5419
Å
α angle
120.00
°
β angle
90.00
°
γ angle
90.00
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
Ac3SI7
Ac
3.00 · 27.3%
S
1.00 · 9.1%
I
7.00 · 63.6%

Energy & Stability

Energy above hull
0.0652
eV/atom
Formation energy
-1.6669
eV/atom
Corrected total energy
-45.6394
eV
Raw total energy
-44.9760
eV

Electronic Structure

Indirect band gap
3.2976
eV
Direct band gap
3.3963
eV
DOS at Fermi level
0.0000
Total magnetisation
0.0000
μB

Additional Information

Prototype ID

AB3C7_126_spg156

Decomposition

AcSI AcI3

Computed at

2023-08-12 22:00:56.287711

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: agm005961355).

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 agm005961355
data_agm005961355
_cell_length_a     7.73934
_cell_length_b     9.54187
_cell_length_c     9.54187
_cell_angle_alpha  120.00000
_cell_angle_beta   90.00005
_cell_angle_gamma  90.00000
_cell_volume       610.24126
_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 0.76936 0.49120 0.50880 1.00000
  Ac2 Ac 0.76936 0.49120 0.98240 1.00000
  Ac3 Ac 0.76936 0.01760 0.50880 1.00000
  S1 S 0.61760 0.33333 0.66667 1.00000
  I1 I 0.01675 0.16759 0.83241 1.00000
  I2 I 0.01675 0.16759 0.33517 1.00000
  I3 I 0.01303 0.66667 0.33333 1.00000
  I4 I 0.54204 0.82819 0.17181 1.00000
  I5 I 0.54204 0.34362 0.17181 1.00000
  I6 I 0.54204 0.82819 0.65638 1.00000
  I7 I 0.01675 0.66483 0.83241 1.00000
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