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Cs2Ti2Se9

Alexandria ALEX

Alex-ID: agm007868067 · Space group: R3 (#146)

Basic Information

Formula
Cs2Ti2Se9
Alex-ID
agm007868067
Elements
3
Sites
39
Space group
R3 (#146)
Crystal system
trigonal
Volume
1,305.53
ų
Cell a
10.9948
Å
Cell b
10.9948
Å
Cell c
10.9948
Å
α angle
83.54
°
β angle
83.54
°
γ angle
83.54
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
Cs2Ti2Se9
Cs
6.00 · 15.4%
Ti
6.00 · 15.4%
Se
27.00 · 69.2%

Energy & Stability

Energy above hull
0.0000
eV/atom
Formation energy
-0.8984
eV/atom
Corrected total energy
-181.7929
eV
Raw total energy
-181.7929
eV

Electronic Structure

Indirect band gap
0.8529
eV
Direct band gap
0.8529
eV
DOS at Fermi level
-0.2213
Total magnetisation
0.0000
μB

Additional Information

Prototype ID

A2B2C9_24_spg146

Decomposition

Cs2Ti2Se9

Computed at

2025-02-06 18:42:14

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: agm007868067).

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 agm007868067
data_agm007868067
_cell_length_a     10.99476
_cell_length_b     10.99476
_cell_length_c     10.99476
_cell_angle_alpha  83.53734
_cell_angle_beta   83.53734
_cell_angle_gamma  83.53734
_cell_volume       1305.52728
_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
  Cs1 Cs 0.65242 0.65242 0.65242 1.00000
  Cs2 Cs 0.79729 0.43082 0.16406 1.00000
  Cs3 Cs 0.16406 0.79729 0.43082 1.00000
  Cs4 Cs 0.23713 0.23713 0.23713 1.00000
  Cs5 Cs 0.43082 0.16406 0.79729 1.00000
  Cs6 Cs 0.99856 0.99856 0.99856 1.00000
  Ti1 Ti 0.52094 0.87048 0.17822 1.00000
  Ti2 Ti 0.72616 0.00180 0.32714 1.00000
  Ti3 Ti 0.17822 0.52094 0.87048 1.00000
  Ti4 Ti 0.32714 0.72616 0.00180 1.00000
  Ti5 Ti 0.00180 0.32714 0.72616 1.00000
  Ti6 Ti 0.87048 0.17822 0.52094 1.00000
  Se1 Se 0.30425 0.91454 0.12032 1.00000
  Se2 Se 0.92226 0.40032 0.49644 1.00000
  Se3 Se 0.77697 0.82471 0.19217 1.00000
  Se4 Se 0.49679 0.71229 0.36184 1.00000
  Se5 Se 0.19217 0.77697 0.82471 1.00000
  Se6 Se 0.79394 0.39934 0.82983 1.00000
  Se7 Se 0.55959 0.19061 0.32981 1.00000
  Se8 Se 0.14248 0.59805 0.09372 1.00000
  Se9 Se 0.19061 0.32981 0.55959 1.00000
  Se10 Se 0.69947 0.03491 0.56360 1.00000
  Se11 Se 0.56360 0.69947 0.03491 1.00000
  Se12 Se 0.12032 0.30425 0.91454 1.00000
  Se13 Se 0.36184 0.49679 0.71229 1.00000
  Se14 Se 0.88948 0.95856 0.64510 1.00000
  Se15 Se 0.91454 0.12032 0.30425 1.00000
  Se16 Se 0.71229 0.36184 0.49679 1.00000
  Se17 Se 0.95856 0.64510 0.88948 1.00000
  Se18 Se 0.64510 0.88948 0.95856 1.00000
  Se19 Se 0.09372 0.14248 0.59805 1.00000
  Se20 Se 0.49644 0.92226 0.40032 1.00000
  Se21 Se 0.82983 0.79394 0.39934 1.00000
  Se22 Se 0.82471 0.19217 0.77697 1.00000
  Se23 Se 0.40032 0.49644 0.92226 1.00000
  Se24 Se 0.39934 0.82983 0.79394 1.00000
  Se25 Se 0.03491 0.56360 0.69947 1.00000
  Se26 Se 0.32981 0.55959 0.19061 1.00000
  Se27 Se 0.59805 0.09372 0.14248 1.00000
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