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Li4Np2Br9

Alexandria ALEX

Alex-ID: agm005640099 · Space group: P-3c1 (#165)

Basic Information

Formula
Li4Np2Br9
Alex-ID
agm005640099
Elements
3
Sites
30
Space group
P-3c1 (#165)
Crystal system
trigonal
Volume
853.06
ų
Cell a
7.1081
Å
Cell b
7.1253
Å
Cell c
19.4346
Å
α angle
89.89
°
β angle
90.00
°
γ angle
60.07
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
Li4Np2Br9
Li
8.00 · 26.7%
Np
4.00 · 13.3%
Br
18.00 · 60.0%

Energy & Stability

Energy above hull
0.0800
eV/atom
Formation energy
-1.3489
eV/atom
Corrected total energy
-137.6520
eV
Raw total energy
-137.6520
eV

Electronic Structure

Indirect band gap
0.1889
eV
Direct band gap
0.1932
eV
DOS at Fermi level
23.3308
Total magnetisation
18.0000
μB

Additional Information

Prototype ID

A2B4C9_141_spg2

Decomposition

NpBr NpBr3 LiBr

Computed at

2023-06-16 23:52:01.265600

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: agm005640099).

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 agm005640099
data_agm005640099
_cell_length_a     7.10812
_cell_length_b     7.12535
_cell_length_c     19.43463
_cell_angle_alpha  89.89393
_cell_angle_beta   90.00075
_cell_angle_gamma  60.07126
_cell_volume       853.05709
_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
  Li1 Li 0.33381 0.33292 0.98744 1.00000
  Li2 Li 0.33317 0.33307 0.48748 1.00000
  Li3 Li 0.66619 0.66708 0.01256 1.00000
  Li4 Li 0.33017 0.33632 0.16523 1.00000
  Li5 Li 0.66683 0.66693 0.51252 1.00000
  Li6 Li 0.66596 0.66421 0.33469 1.00000
  Li7 Li 0.33404 0.33579 0.66531 1.00000
  Li8 Li 0.66983 0.66368 0.83477 1.00000
  Np1 Np 0.00125 0.99998 0.34508 1.00000
  Np2 Np 0.00114 0.00040 0.15491 1.00000
  Np3 Np 0.99875 0.00002 0.65492 1.00000
  Np4 Np 0.99886 0.99960 0.84509 1.00000
  Br1 Br 0.99387 0.33005 0.75003 1.00000
  Br2 Br 0.32418 0.66947 0.75003 1.00000
  Br3 Br 0.66933 0.99982 0.75000 1.00000
  Br4 Br 0.00613 0.66995 0.24997 1.00000
  Br5 Br 0.67582 0.33053 0.24997 1.00000
  Br6 Br 0.33067 0.00018 0.25000 1.00000
  Br7 Br 0.64717 0.98486 0.41737 1.00000
  Br8 Br 0.97877 0.36989 0.41858 1.00000
  Br9 Br 0.36869 0.64856 0.41791 1.00000
  Br10 Br 0.63199 0.01540 0.08262 1.00000
  Br11 Br 0.34849 0.63051 0.08136 1.00000
  Br12 Br 0.01724 0.35174 0.08209 1.00000
  Br13 Br 0.35283 0.01514 0.58263 1.00000
  Br14 Br 0.02123 0.63011 0.58142 1.00000
  Br15 Br 0.63131 0.35144 0.58209 1.00000
  Br16 Br 0.36801 0.98460 0.91738 1.00000
  Br17 Br 0.65151 0.36949 0.91864 1.00000
  Br18 Br 0.98276 0.64826 0.91791 1.00000
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