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K2Hg3I8

Alexandria ALEX

Alex-ID: agm005623971 · Space group: C2/c (#15)

Basic Information

Formula
K2Hg3I8
Alex-ID
agm005623971
Elements
3
Sites
26
Space group
C2/c (#15)
Crystal system
monoclinic
Volume
1,482.82
ų
Cell a
8.4690
Å
Cell b
10.9362
Å
Cell c
17.5164
Å
α angle
96.96
°
β angle
90.00
°
γ angle
112.78
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
K2Hg3I8
K
4.00 · 15.4%
Hg
6.00 · 23.1%
I
16.00 · 61.5%

Energy & Stability

Energy above hull
0.0331
eV/atom
Formation energy
-0.6142
eV/atom
Corrected total energy
-47.3449
eV
Raw total energy
-47.3449
eV

Electronic Structure

Indirect band gap
2.0501
eV
Direct band gap
2.0501
eV
DOS at Fermi level
0.0000
Total magnetisation
0.0000
μB

Additional Information

Prototype ID

A2B3C8_468_spg15

Decomposition

HgI2 KI

Computed at

2023-06-16 08:43:40.949796

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: agm005623971).

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 agm005623971
data_agm005623971
_cell_length_a     8.46901
_cell_length_b     10.93618
_cell_length_c     17.51644
_cell_angle_alpha  96.96171
_cell_angle_beta   90.00000
_cell_angle_gamma  112.78049
_cell_volume       1482.81593
_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 0.09861 0.43310 0.85792 1.00000
  K2 K 0.66551 0.56690 0.64208 1.00000
  K3 K 0.90139 0.56690 0.14208 1.00000
  K4 K 0.33449 0.43310 0.35792 1.00000
  Hg1 Hg 0.05974 1.00000 0.25000 1.00000
  Hg2 Hg 0.94026 0.00000 0.75000 1.00000
  Hg3 Hg 0.11468 0.39096 0.63167 1.00000
  Hg4 Hg 0.72372 0.60904 0.86833 1.00000
  Hg5 Hg 0.88532 0.60904 0.36833 1.00000
  Hg6 Hg 0.27628 0.39096 0.13167 1.00000
  I1 I 0.29752 0.58788 0.04599 1.00000
  I2 I 0.70964 0.41212 0.45401 1.00000
  I3 I 0.70248 0.41212 0.95401 1.00000
  I4 I 0.29036 0.58788 0.54599 1.00000
  I5 I 0.50155 0.29069 0.18197 1.00000
  I6 I 0.21086 0.70931 0.31803 1.00000
  I7 I 0.49845 0.70931 0.81803 1.00000
  I8 I 0.78914 0.29069 0.68197 1.00000
  I9 I 0.96666 0.27928 0.20722 1.00000
  I10 I 0.68738 0.72072 0.29278 1.00000
  I11 I 0.96613 0.09532 0.89806 1.00000
  I12 I 0.87081 0.90468 0.60194 1.00000
  I13 I 0.03387 0.90468 0.10194 1.00000
  I14 I 0.12919 0.09532 0.39806 1.00000
  I15 I 0.31262 0.27928 0.70722 1.00000
  I16 I 0.03334 0.72072 0.79278 1.00000
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