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K2H3I

Alexandria ALEX

Alex-ID: agm005697103 · Space group: Fddd (#70)

Basic Information

Formula
K2H3I
Alex-ID
agm005697103
Elements
3
Sites
24
Space group
Fddd (#70)
Crystal system
orthorhombic
Volume
680.87
ų
Cell a
7.5606
Å
Cell b
10.4162
Å
Cell c
10.0190
Å
α angle
82.13
°
β angle
67.83
°
γ angle
68.72
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
K2H3I
K
8.00 · 33.3%
H
12.00 · 50.0%
I
4.00 · 16.7%

Energy & Stability

Energy above hull
0.5146
eV/atom
Formation energy
-0.1015
eV/atom
Corrected total energy
-56.3312
eV
Raw total energy
-56.3312
eV

Electronic Structure

Indirect band gap
2.2283
eV
Direct band gap
2.2546
eV
DOS at Fermi level
0.0000
Total magnetisation
0.0000
μB

Additional Information

Prototype ID

AB2C3_1842_spg70

Decomposition

KH7 KH KI

Computed at

2023-07-09 23:56:10.336306

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: agm005697103).

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 agm005697103
data_agm005697103
_cell_length_a     7.56055
_cell_length_b     10.41617
_cell_length_c     10.01899
_cell_angle_alpha  82.12723
_cell_angle_beta   67.83231
_cell_angle_gamma  68.72011
_cell_volume       680.87468
_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 0.90994 0.50001 0.18010 1.00000
  K2 K 0.15995 0.00001 0.68010 1.00000
  K3 K 0.84006 0.99999 0.31990 1.00000
  K4 K 0.59005 0.49999 0.81990 1.00000
  K5 K 0.34857 0.00001 0.30286 1.00000
  K6 K 0.65143 0.99999 0.69714 1.00000
  K7 K 0.40143 0.49999 0.19714 1.00000
  K8 K 0.09857 0.50001 0.80286 1.00000
  H1 H 0.19450 0.79473 0.15760 1.00000
  H2 H 0.14684 0.20527 0.84239 1.00000
  H3 H 0.01078 0.79472 0.84239 1.00000
  H4 H 0.64790 0.20528 0.15761 1.00000
  H5 H 0.55550 0.70527 0.34240 1.00000
  H6 H 0.60316 0.29473 0.65761 1.00000
  H7 H 0.73922 0.70528 0.65761 1.00000
  H8 H 0.46946 0.06108 0.50000 1.00000
  H9 H 0.71946 0.56108 1.00000 1.00000
  H10 H 0.28054 0.43892 0.00000 1.00000
  H11 H 0.03054 0.93892 0.50000 1.00000
  H12 H 0.10210 0.29472 0.34239 1.00000
  I1 I 0.64692 0.70614 0.50000 1.00000
  I2 I 0.10308 0.79386 1.00000 1.00000
  I3 I 0.85307 0.29386 0.50000 1.00000
  I4 I 0.89693 0.20614 0.00000 1.00000
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