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RbMg3H8

Alexandria ALEX

Alex-ID: agm007441547 · Space group: C2/m (#12)

Basic Information

Formula
RbMg3H8
Alex-ID
agm007441547
Elements
3
Sites
12
Space group
C2/m (#12)
Crystal system
monoclinic
Volume
160.50
ų
Cell a
4.9654
Å
Cell b
5.5733
Å
Cell c
6.8055
Å
α angle
105.89
°
β angle
90.67
°
γ angle
116.26
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
RbMg3H8
Rb
1.00 · 8.3%
Mg
3.00 · 25.0%
H
8.00 · 66.7%

Energy & Stability

Energy above hull
0.2068
eV/atom
Formation energy
-0.0729
eV/atom
Corrected total energy
-32.5443
eV
Raw total energy
-32.5443
eV

Electronic Structure

Indirect band gap
0.0000
eV
Direct band gap
0.0000
eV
DOS at Fermi level
0.9827
Total magnetisation
0.0000
μB

Additional Information

Prototype ID

AB3C8_174_spg2

Decomposition

MgH6 RbMgH3 MgH2

Computed at

2024-02-08 10:01:23

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: agm007441547).

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 agm007441547
data_agm007441547
_cell_length_a     4.96539
_cell_length_b     5.57327
_cell_length_c     6.80555
_cell_angle_alpha  105.89227
_cell_angle_beta   90.66616
_cell_angle_gamma  116.26363
_cell_volume       160.49845
_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 0.50000 0.00000 0.50000 1.00000
  Mg1 Mg 0.00000 0.00000 0.00000 1.00000
  Mg2 Mg 0.70566 0.40891 0.09301 1.00000
  Mg3 Mg 0.29434 0.59109 0.90699 1.00000
  H1 H 0.63916 0.74326 0.13172 1.00000
  H2 H 0.88459 0.24191 0.22276 1.00000
  H3 H 0.10536 0.74298 0.12952 1.00000
  H4 H 0.36084 0.25674 0.86828 1.00000
  H5 H 0.89464 0.25702 0.87048 1.00000
  H6 H 0.11541 0.75809 0.77724 1.00000
  H7 H 0.63729 0.75959 0.78001 1.00000
  H8 H 0.36271 0.24041 0.21999 1.00000
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