Navigation

HEAS Data Platform · Materials Science Database

KNa2Al2(BO3)3

Alexandria ALEX

Alex-ID: agm010748447 · Space group: P-1 (#2)

Basic Information

Formula
KNa2Al2(BO3)3
Alex-ID
agm010748447
Elements
5
Sites
34
Space group
P-1 (#2)
Crystal system
triclinic
Volume
471.89
ų
Cell a
5.0489
Å
Cell b
7.5015
Å
Cell c
12.7643
Å
α angle
79.25
°
β angle
84.41
°
γ angle
85.69
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
KNa2Al2(BO3)3
K
2.00 · 5.9%
Na
4.00 · 11.8%
Al
4.00 · 11.8%
B
6.00 · 17.6%
O
18.00 · 52.9%

Energy & Stability

Energy above hull
0.0315
eV/atom
Formation energy
-2.8652
eV/atom
Corrected total energy
-249.1917
eV
Raw total energy
-236.5504
eV

Electronic Structure

Indirect band gap
3.4535
eV
Direct band gap
3.6011
eV
DOS at Fermi level
0.0000
Total magnetisation
0.0890
μB

Additional Information

Prototype ID

AB2C2D3E9_1_spg13

Decomposition

Na3AlB4O9 K2Al2B2O7 NaAlO2

Computed at

2024-10-26 10:19:44.380022

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: agm010748447).

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 agm010748447
data_agm010748447
_cell_length_a     5.04893
_cell_length_b     7.50153
_cell_length_c     12.76428
_cell_angle_alpha  79.24688
_cell_angle_beta   84.40670
_cell_angle_gamma  85.68587
_cell_volume       471.88738
_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 0.28147 0.06860 0.26301 1.00000
  K2 K 0.71853 0.93140 0.73699 1.00000
  Na1 Na 0.21208 0.48221 0.09614 1.00000
  Na2 Na 0.18294 0.51980 0.36910 1.00000
  Na3 Na 0.78792 0.51779 0.90386 1.00000
  Na4 Na 0.81706 0.48020 0.63090 1.00000
  Al1 Al 0.73619 0.77947 0.06955 1.00000
  Al2 Al 0.69979 0.22495 0.44595 1.00000
  Al3 Al 0.26381 0.22053 0.93045 1.00000
  Al4 Al 0.30021 0.77505 0.55405 1.00000
  B1 B 0.32112 0.53009 0.74969 1.00000
  B2 B 0.67888 0.46991 0.25031 1.00000
  B3 B 0.74778 0.16604 0.04209 1.00000
  B4 B 0.82203 0.84365 0.45121 1.00000
  B5 B 0.25222 0.83396 0.95791 1.00000
  B6 B 0.17797 0.15635 0.54879 1.00000
  O1 O 0.99765 0.23798 0.03159 1.00000
  O2 O 0.00235 0.76202 0.96841 1.00000
  O3 O 0.18897 0.60092 0.65717 1.00000
  O4 O 0.90764 0.21523 0.55321 1.00000
  O5 O 0.81103 0.39908 0.34283 1.00000
  O6 O 0.80880 0.60930 0.17869 1.00000
  O7 O 0.25274 0.98395 0.60031 1.00000
  O8 O 0.29607 0.00292 0.89682 1.00000
  O9 O 0.74726 0.01605 0.39969 1.00000
  O10 O 0.70393 0.99708 0.10318 1.00000
  O11 O 0.63637 0.72839 0.50731 1.00000
  O12 O 0.54621 0.27009 0.98960 1.00000
  O13 O 0.36363 0.27161 0.49269 1.00000
  O14 O 0.45379 0.72991 0.01040 1.00000
  O15 O 0.44459 0.40749 0.23646 1.00000
  O16 O 0.55541 0.59251 0.76354 1.00000
  O17 O 0.19120 0.39070 0.82131 1.00000
  O18 O 0.09236 0.78477 0.44679 1.00000
Get direct link