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Rb3Al2F9

Alexandria ALEX

Alex-ID: agm005618367 · Space group: R-3c (#167)

Basic Information

Formula
Rb3Al2F9
Alex-ID
agm005618367
Elements
3
Sites
28
Space group
R-3c (#167)
Crystal system
trigonal
Volume
460.58
ų
Cell a
7.7514
Å
Cell b
7.7514
Å
Cell c
7.7514
Å
α angle
84.93
°
β angle
84.93
°
γ angle
84.93
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
Rb3Al2F9
Rb
6.00 · 21.4%
Al
4.00 · 14.3%
F
18.00 · 64.3%

Energy & Stability

Energy above hull
0.0066
eV/atom
Formation energy
-3.5768
eV/atom
Corrected total energy
-146.5069
eV
Raw total energy
-146.5069
eV

Electronic Structure

Indirect band gap
6.9051
eV
Direct band gap
6.9051
eV
DOS at Fermi level
0.0000
Total magnetisation
0.4778
μB

Additional Information

Prototype ID

A2B3C9_26_spg167

Decomposition

RbAlF4 Rb2AlF5

Computed at

2023-06-14 00:56:08.819416

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: agm005618367).

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 agm005618367
data_agm005618367
_cell_length_a     7.75144
_cell_length_b     7.75144
_cell_length_c     7.75144
_cell_angle_alpha  84.92889
_cell_angle_beta   84.92888
_cell_angle_gamma  84.92889
_cell_volume       460.57899
_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
  Rb1 Rb 0.40492 0.75000 0.09508 1.00000
  Rb2 Rb 0.25000 0.90492 0.59508 1.00000
  Rb3 Rb 0.90492 0.59508 0.25000 1.00000
  Rb4 Rb 0.09508 0.40492 0.75000 1.00000
  Rb5 Rb 0.75000 0.09508 0.40492 1.00000
  Rb6 Rb 0.59508 0.25000 0.90492 1.00000
  Al1 Al 0.15581 0.15581 0.15581 1.00000
  Al2 Al 0.65581 0.65581 0.65581 1.00000
  Al3 Al 0.84419 0.84419 0.84419 1.00000
  Al4 Al 0.34419 0.34419 0.34419 1.00000
  F1 F 0.74913 0.90231 0.04761 1.00000
  F2 F 0.09769 0.95239 0.25087 1.00000
  F3 F 0.25000 0.38227 0.11773 1.00000
  F4 F 0.59769 0.75087 0.45239 1.00000
  F5 F 0.61773 0.88227 0.75000 1.00000
  F6 F 0.88227 0.75000 0.61773 1.00000
  F7 F 0.24913 0.54761 0.40231 1.00000
  F8 F 0.54761 0.40231 0.24913 1.00000
  F9 F 0.95239 0.25087 0.09769 1.00000
  F10 F 0.04761 0.74913 0.90231 1.00000
  F11 F 0.45239 0.59769 0.75087 1.00000
  F12 F 0.38227 0.11773 0.25000 1.00000
  F13 F 0.75087 0.45239 0.59769 1.00000
  F14 F 0.11773 0.25000 0.38227 1.00000
  F15 F 0.40231 0.24913 0.54761 1.00000
  F16 F 0.75000 0.61773 0.88227 1.00000
  F17 F 0.90231 0.04761 0.74913 1.00000
  F18 F 0.25087 0.09769 0.95239 1.00000
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