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Pa2Pb4S9

Alexandria ALEX

Alex-ID: agm005643176 · Space group: P-3c1 (#165)

Basic Information

Formula
Pa2Pb4S9
Alex-ID
agm005643176
Elements
3
Sites
30
Space group
P-3c1 (#165)
Crystal system
trigonal
Volume
864.88
ų
Cell a
7.2352
Å
Cell b
7.2361
Å
Cell c
19.0736
Å
α angle
90.00
°
β angle
90.00
°
γ angle
60.01
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
Pa2Pb4S9
Pa
4.00 · 13.3%
Pb
8.00 · 26.7%
S
18.00 · 60.0%

Energy & Stability

Energy above hull
0.0166
eV/atom
Formation energy
-1.3954
eV/atom
Corrected total energy
-183.8165
eV
Raw total energy
-171.8742
eV

Electronic Structure

Indirect band gap
1.0393
eV
Direct band gap
1.0920
eV
DOS at Fermi level
-0.0195
Total magnetisation
0.0000
μB

Additional Information

Prototype ID

A2B4C9_141_spg2

Decomposition

PbS Pa2PbS6

Computed at

2023-06-17 02:05:35.392212

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: agm005643176).

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 agm005643176
data_agm005643176
_cell_length_a     7.23523
_cell_length_b     7.23605
_cell_length_c     19.07358
_cell_angle_alpha  90.00211
_cell_angle_beta   90.00201
_cell_angle_gamma  60.00845
_cell_volume       864.87538
_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
  Pa1 Pa 0.99976 0.00011 0.34855 1.00000
  Pa2 Pa 0.99979 0.99998 0.15133 1.00000
  Pa3 Pa 0.00024 0.99989 0.65146 1.00000
  Pa4 Pa 0.00021 0.00002 0.84867 1.00000
  Pb1 Pb 0.33335 0.33333 0.97837 1.00000
  Pb2 Pb 0.33330 0.33336 0.47842 1.00000
  Pb3 Pb 0.66665 0.66667 0.02162 1.00000
  Pb4 Pb 0.33296 0.33348 0.18189 1.00000
  Pb5 Pb 0.66670 0.66664 0.52159 1.00000
  Pb6 Pb 0.66636 0.66668 0.31812 1.00000
  Pb7 Pb 0.33364 0.33332 0.68189 1.00000
  Pb8 Pb 0.66704 0.66652 0.81810 1.00000
  S1 S 0.00043 0.27019 0.75006 1.00000
  S2 S 0.27047 0.72960 0.75006 1.00000
  S3 S 0.72980 0.00011 0.75006 1.00000
  S4 S 0.99957 0.72981 0.24994 1.00000
  S5 S 0.72953 0.27040 0.24994 1.00000
  S6 S 0.27019 0.99989 0.24994 1.00000
  S7 S 0.69994 0.96393 0.41326 1.00000
  S8 S 0.96376 0.33598 0.41329 1.00000
  S9 S 0.33565 0.70031 0.41328 1.00000
  S10 S 0.66364 0.03646 0.08665 1.00000
  S11 S 0.29956 0.66397 0.08664 1.00000
  S12 S 0.03620 0.29968 0.08665 1.00000
  S13 S 0.30007 0.03607 0.58675 1.00000
  S14 S 0.03624 0.66401 0.58672 1.00000
  S15 S 0.66434 0.29970 0.58672 1.00000
  S16 S 0.33637 0.96354 0.91334 1.00000
  S17 S 0.70043 0.33603 0.91335 1.00000
  S18 S 0.96380 0.70032 0.91334 1.00000
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