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K2(NbI3)3

Alexandria ALEX

Alex-ID: agm005608463 · Space group: C2/m (#12)

Basic Information

Formula
K2(NbI3)3
Alex-ID
agm005608463
Elements
3
Sites
28
Space group
C2/m (#12)
Crystal system
monoclinic
Volume
1,117.40
ų
Cell a
11.1591
Å
Cell b
11.1547
Å
Cell c
11.1547
Å
α angle
117.99
°
β angle
102.24
°
γ angle
102.24
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
K2(NbI3)3
K
4.00 · 14.3%
Nb
6.00 · 21.4%
I
18.00 · 64.3%

Energy & Stability

Energy above hull
0.0289
eV/atom
Formation energy
-0.7594
eV/atom
Corrected total energy
-113.9932
eV
Raw total energy
-113.9932
eV

Electronic Structure

Indirect band gap
1.1255
eV
Direct band gap
1.1269
eV
DOS at Fermi level
-0.0384
Total magnetisation
0.0000
μB

Additional Information

Prototype ID

A2B3C9_29_spg12

Decomposition

Nb3I7 KI

Computed at

2023-06-14 05:59:05.085449

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: agm005608463).

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 agm005608463
data_agm005608463
_cell_length_a     11.15909
_cell_length_b     11.15474
_cell_length_c     11.15474
_cell_angle_alpha  117.99285
_cell_angle_beta   102.23943
_cell_angle_gamma  102.23942
_cell_volume       1117.40227
_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
  K1 K 0.15883 0.54906 0.22825 1.00000
  K2 K 0.84117 0.77175 0.45094 1.00000
  K3 K 0.84117 0.45094 0.77175 1.00000
  K4 K 0.15883 0.22825 0.54906 1.00000
  Nb1 Nb 0.38905 0.11430 0.11430 1.00000
  Nb2 Nb 0.61095 0.88570 0.88570 1.00000
  Nb3 Nb 0.62611 0.04050 0.19820 1.00000
  Nb4 Nb 0.37389 0.80180 0.95950 1.00000
  Nb5 Nb 0.37389 0.95950 0.80180 1.00000
  Nb6 Nb 0.62611 0.19820 0.04050 1.00000
  I1 I 0.50000 0.20373 0.79627 1.00000
  I2 I 0.17980 0.49962 0.89726 1.00000
  I3 I 0.17980 0.89726 0.49962 1.00000
  I4 I 0.82020 0.50038 0.10274 1.00000
  I5 I 0.77691 0.71536 0.71536 1.00000
  I6 I 0.22309 0.28464 0.28464 1.00000
  I7 I 0.51934 0.40243 0.19751 1.00000
  I8 I 0.48066 0.80249 0.59757 1.00000
  I9 I 0.48066 0.59757 0.80249 1.00000
  I10 I 0.51934 0.19751 0.40243 1.00000
  I11 I 0.17482 0.69032 0.69032 1.00000
  I12 I 0.80540 0.90749 0.10951 1.00000
  I13 I 0.80540 0.10951 0.90749 1.00000
  I14 I 0.19460 0.09251 0.89049 1.00000
  I15 I 0.19460 0.89049 0.09251 1.00000
  I16 I 0.50000 0.79627 0.20373 1.00000
  I17 I 0.82518 0.30968 0.30968 1.00000
  I18 I 0.82020 0.10274 0.50038 1.00000
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