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K2Sc9O19

Alexandria ALEX

Alex-ID: agm007992844 · Space group: C2/m (#12)

Basic Information

Formula
K2Sc9O19
Alex-ID
agm007992844
Elements
3
Sites
30
Space group
C2/m (#12)
Crystal system
monoclinic
Volume
436.23
ų
Cell a
7.0093
Å
Cell b
7.0093
Å
Cell c
16.9357
Å
α angle
69.86
°
β angle
69.86
°
γ angle
34.20
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
K2Sc9O19
K
2.00 · 6.7%
Sc
9.00 · 30.0%
O
19.00 · 63.3%

Energy & Stability

Energy above hull
0.3017
eV/atom
Formation energy
-2.9722
eV/atom
Corrected total energy
-242.5596
eV
Raw total energy
-229.2161
eV

Electronic Structure

Indirect band gap
0.0000
eV
Direct band gap
0.0214
eV
DOS at Fermi level
17.3102
Total magnetisation
5.1273
μB

Additional Information

Prototype ID

A2B9C19_1_spg12

Decomposition

K2O3 Sc2O3 KO4

Computed at

2024-07-12 06:22:19.255496

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: agm007992844).

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 agm007992844
data_agm007992844
_cell_length_a     7.00926
_cell_length_b     7.00926
_cell_length_c     16.93573
_cell_angle_alpha  69.85989
_cell_angle_beta   69.85989
_cell_angle_gamma  34.19550
_cell_volume       436.23021
_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 0.67280 0.67280 0.03011 1.00000
  K2 K 0.32720 0.32720 0.96989 1.00000
  Sc1 Sc 0.86701 0.86701 0.63116 1.00000
  Sc2 Sc 0.13299 0.13299 0.36884 1.00000
  Sc3 Sc 0.04432 0.04432 0.22224 1.00000
  Sc4 Sc 0.83086 0.83086 0.38261 1.00000
  Sc5 Sc 0.24525 0.24525 0.78502 1.00000
  Sc6 Sc 0.00000 0.00000 0.00000 1.00000
  Sc7 Sc 0.75475 0.75475 0.21498 1.00000
  Sc8 Sc 0.95568 0.95568 0.77776 1.00000
  Sc9 Sc 0.16914 0.16914 0.61739 1.00000
  O1 O 0.79476 0.79476 0.75997 1.00000
  O2 O 0.82226 0.82226 0.51908 1.00000
  O3 O 0.88161 0.88161 0.25613 1.00000
  O4 O 0.71713 0.71713 0.58403 1.00000
  O5 O 0.11839 0.11839 0.74387 1.00000
  O6 O 0.17774 0.17774 0.48092 1.00000
  O7 O 0.28287 0.28287 0.41597 1.00000
  O8 O 0.06777 0.06777 0.09612 1.00000
  O9 O 0.59269 0.59269 0.20418 1.00000
  O10 O 0.20524 0.20524 0.24003 1.00000
  O11 O 0.83993 0.83993 0.08743 1.00000
  O12 O 0.67829 0.67829 0.36091 1.00000
  O13 O 0.32171 0.32171 0.63909 1.00000
  O14 O 0.40731 0.40731 0.79582 1.00000
  O15 O 0.50000 0.50000 0.00000 1.00000
  O16 O 0.98999 0.98999 0.36066 1.00000
  O17 O 0.01001 0.01001 0.63934 1.00000
  O18 O 0.93223 0.93223 0.90388 1.00000
  O19 O 0.16007 0.16007 0.91257 1.00000
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