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Sr2Np4S9

Alexandria ALEX

Alex-ID: agm005643146 · Space group: P-3c1 (#165)

Basic Information

Formula
Sr2Np4S9
Alex-ID
agm005643146
Elements
3
Sites
30
Space group
P-3c1 (#165)
Crystal system
trigonal
Volume
828.25
ų
Cell a
7.0937
Å
Cell b
7.0935
Å
Cell c
19.0064
Å
α angle
90.00
°
β angle
90.00
°
γ angle
60.00
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
Sr2Np4S9
Sr
4.00 · 13.3%
Np
8.00 · 26.7%
S
18.00 · 60.0%

Energy & Stability

Energy above hull
0.1050
eV/atom
Formation energy
-1.8886
eV/atom
Corrected total energy
-241.2374
eV
Raw total energy
-229.2951
eV

Electronic Structure

Indirect band gap
0.0000
eV
Direct band gap
0.0001
eV
DOS at Fermi level
63.1403
Total magnetisation
-13.7152
μB

Additional Information

Prototype ID

A2B4C9_0_spg9

Decomposition

NpS2 Np3S5 SrS

Computed at

2023-06-15 21:51:59.396081

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: agm005643146).

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 agm005643146
data_agm005643146
_cell_length_a     7.09368
_cell_length_b     7.09351
_cell_length_c     19.00639
_cell_angle_alpha  90.00033
_cell_angle_beta   90.00032
_cell_angle_gamma  59.99987
_cell_volume       828.25302
_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
  Sr1 Sr 0.99992 0.99996 0.35581 1.00000
  Sr2 Sr 0.99992 0.99996 0.14459 1.00000
  Sr3 Sr 0.00008 0.00004 0.64419 1.00000
  Sr4 Sr 0.00008 0.00004 0.85541 1.00000
  Np1 Np 0.33334 0.33335 0.98733 1.00000
  Np2 Np 0.33331 0.33333 0.48531 1.00000
  Np3 Np 0.66666 0.66665 0.01267 1.00000
  Np4 Np 0.33325 0.33328 0.18636 1.00000
  Np5 Np 0.66669 0.66667 0.51469 1.00000
  Np6 Np 0.66658 0.66662 0.31656 1.00000
  Np7 Np 0.33342 0.33338 0.68344 1.00000
  Np8 Np 0.66675 0.66672 0.81364 1.00000
  S1 S 0.00094 0.31911 0.74935 1.00000
  S2 S 0.31916 0.68016 0.74933 1.00000
  S3 S 0.68020 0.00089 0.74935 1.00000
  S4 S 0.99906 0.68089 0.25065 1.00000
  S5 S 0.68084 0.31984 0.25067 1.00000
  S6 S 0.31980 0.99911 0.25065 1.00000
  S7 S 0.63308 0.96706 0.41840 1.00000
  S8 S 0.96704 0.39974 0.41841 1.00000
  S9 S 0.39972 0.63319 0.41842 1.00000
  S10 S 0.60050 0.02939 0.08209 1.00000
  S11 S 0.37003 0.60053 0.08209 1.00000
  S12 S 0.02940 0.36994 0.08206 1.00000
  S13 S 0.36692 0.03294 0.58160 1.00000
  S14 S 0.03296 0.60026 0.58159 1.00000
  S15 S 0.60028 0.36680 0.58158 1.00000
  S16 S 0.39950 0.97061 0.91791 1.00000
  S17 S 0.62997 0.39947 0.91791 1.00000
  S18 S 0.97060 0.63006 0.91794 1.00000
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