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HEAS Data Platform · Materials Science Database

Na2TiSi4O11

Alexandria ALEX

Alex-ID: agm003245035 · Space group: I4/m (#87)

Basic Information

Formula
Na2TiSi4O11
Alex-ID
agm003245035
Elements
4
Sites
36
Space group
I4/m (#87)
Crystal system
tetragonal
Volume
469.39
ų
Cell a
8.6628
Å
Cell b
8.6628
Å
Cell c
8.6628
Å
α angle
101.98
°
β angle
101.98
°
γ angle
125.80
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
Na2TiSi4O11
Na
4.00 · 11.1%
Ti
2.00 · 5.6%
Si
8.00 · 22.2%
O
22.00 · 61.1%

Energy & Stability

Energy above hull
0.0114
eV/atom
Formation energy
-3.1248
eV/atom
Corrected total energy
-286.0223
eV
Raw total energy
-270.5719
eV

Electronic Structure

Indirect band gap
2.6692
eV
Direct band gap
2.6718
eV
DOS at Fermi level
0.0000
Total magnetisation
0.1288
μB

Additional Information

Prototype ID

AB2C4D11_5_spg87

Decomposition

Na2TiSiO5 SiO2

Computed at

2021-12-28 05:53:43.521919

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: agm003245035).

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 agm003245035
data_agm003245035
_cell_length_a     8.66280
_cell_length_b     8.66280
_cell_length_c     8.66280
_cell_angle_alpha  101.97796
_cell_angle_beta   101.97796
_cell_angle_gamma  125.79798
_cell_volume       469.38699
_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
  Na1 Na 0.36843 0.31847 0.68690 1.00000
  Na2 Na 0.31847 0.63157 0.95003 1.00000
  Na3 Na 0.63157 0.68153 0.31310 1.00000
  Na4 Na 0.68153 0.36843 0.04997 1.00000
  Ti1 Ti 0.75637 0.75637 0.00000 1.00000
  Ti2 Ti 0.24363 0.24363 0.00000 1.00000
  Si1 Si 0.49857 0.79769 0.68115 1.00000
  Si2 Si 0.50143 0.20231 0.31885 1.00000
  Si3 Si 0.20231 0.88346 0.70088 1.00000
  Si4 Si 0.88346 0.18258 0.68115 1.00000
  Si5 Si 0.18258 0.50143 0.29912 1.00000
  Si6 Si 0.81742 0.49857 0.70088 1.00000
  Si7 Si 0.11654 0.81742 0.31885 1.00000
  Si8 Si 0.79769 0.11654 0.29912 1.00000
  O1 O 0.55286 0.68497 0.77627 1.00000
  O2 O 0.40989 0.67976 0.46890 1.00000
  O3 O 0.44714 0.31503 0.22373 1.00000
  O4 O 0.05901 0.59011 0.26987 1.00000
  O5 O 0.22342 0.44714 0.13211 1.00000
  O6 O 0.30444 0.95509 0.25953 1.00000
  O7 O 0.77658 0.55286 0.86789 1.00000
  O8 O 0.31503 0.09130 0.86789 1.00000
  O9 O 0.67976 0.21086 0.26987 1.00000
  O10 O 0.32024 0.78914 0.73013 1.00000
  O11 O 0.69556 0.04491 0.74047 1.00000
  O12 O 0.04491 0.30444 0.34935 1.00000
  O13 O 0.50000 0.50000 0.00000 1.00000
  O14 O 0.78914 0.05901 0.46890 1.00000
  O15 O 0.21086 0.94099 0.53110 1.00000
  O16 O 0.90870 0.77658 0.22373 1.00000
  O17 O 0.09130 0.22342 0.77627 1.00000
  O18 O 0.95509 0.69556 0.65065 1.00000
  O19 O 0.68497 0.90870 0.13211 1.00000
  O20 O 0.59011 0.32024 0.53110 1.00000
  O21 O 0.00000 0.00000 0.00000 1.00000
  O22 O 0.94099 0.40989 0.73013 1.00000
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