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MgGa2As2(HO)18

Alexandria ALEX

Alex-ID: agm006288229 · Space group: P-1 (#2)

Basic Information

Formula
MgGa2As2(HO)18
Alex-ID
agm006288229
Elements
5
Sites
41
Space group
P-1 (#2)
Crystal system
triclinic
Volume
376.05
ų
Cell a
5.5094
Å
Cell b
7.2058
Å
Cell c
10.5667
Å
α angle
97.64
°
β angle
101.99
°
γ angle
109.97
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
MgGa2As2(HO)18
Mg
1.00 · 2.4%
Ga
2.00 · 4.9%
As
2.00 · 4.9%
H
18.00 · 43.9%
O
18.00 · 43.9%

Energy & Stability

Energy above hull
0.0139
eV/atom
Formation energy
-1.6305
eV/atom
Corrected total energy
-231.3644
eV
Raw total energy
-218.7232
eV

Electronic Structure

Indirect band gap
3.5087
eV
Direct band gap
3.5764
eV
DOS at Fermi level
0.0000
Total magnetisation
0.0000
μB

Additional Information

Prototype ID

AB2C2D18E18_1_spg2

Decomposition

MgGaAsO5 GaAsO4 H2O

Computed at

2025-02-26 12:20:18

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: agm006288229).

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 agm006288229
data_agm006288229
_cell_length_a     5.50936
_cell_length_b     7.20579
_cell_length_c     10.56675
_cell_angle_alpha  97.64296
_cell_angle_beta   101.99084
_cell_angle_gamma  109.97180
_cell_volume       376.05178
_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
  Mg1 Mg 0.00000 0.00000 0.00000 1.00000
  Ga1 Ga 0.50000 0.00000 0.50000 1.00000
  Ga2 Ga 0.50000 0.50000 0.50000 1.00000
  As1 As 0.97900 0.07366 0.32959 1.00000
  As2 As 0.02100 0.92634 0.67041 1.00000
  H1 H 0.94122 0.42480 0.74343 1.00000
  H2 H 0.05878 0.57520 0.25657 1.00000
  H3 H 0.10331 0.65248 0.82158 1.00000
  H4 H 0.89669 0.34752 0.17842 1.00000
  H5 H 0.52511 0.01421 0.12114 1.00000
  H6 H 0.68730 0.04561 0.79546 1.00000
  H7 H 0.18056 0.39105 0.94480 1.00000
  H8 H 0.81944 0.60895 0.05520 1.00000
  H9 H 0.30640 0.39939 0.09523 1.00000
  H10 H 0.69360 0.60061 0.90477 1.00000
  H11 H 0.66050 0.49974 0.27215 1.00000
  H12 H 0.33950 0.50026 0.72785 1.00000
  H13 H 0.58660 0.68769 0.32082 1.00000
  H14 H 0.41340 0.31231 0.67918 1.00000
  H15 H 0.82401 0.32702 0.48394 1.00000
  H16 H 0.17599 0.67298 0.51606 1.00000
  H17 H 0.47489 0.98579 0.87886 1.00000
  H18 H 0.31270 0.95439 0.20454 1.00000
  O1 O 0.22930 0.30984 0.00693 1.00000
  O2 O 0.66894 0.02964 0.88548 1.00000
  O3 O 0.33106 0.97036 0.11452 1.00000
  O4 O 0.88985 0.48598 0.19184 1.00000
  O5 O 0.11015 0.51402 0.80816 1.00000
  O6 O 0.48070 0.46583 0.69410 1.00000
  O7 O 0.64015 0.28784 0.49487 1.00000
  O8 O 0.35985 0.71216 0.50513 1.00000
  O9 O 0.69180 0.93166 0.36829 1.00000
  O10 O 0.30820 0.06834 0.63171 1.00000
  O11 O 0.11055 0.89993 0.83052 1.00000
  O12 O 0.88945 0.10007 0.16948 1.00000
  O13 O 0.88361 0.69149 0.56369 1.00000
  O14 O 0.11639 0.30851 0.43631 1.00000
  O15 O 0.81191 0.05885 0.65870 1.00000
  O16 O 0.18809 0.94115 0.34130 1.00000
  O17 O 0.77070 0.69016 0.99307 1.00000
  O18 O 0.51930 0.53417 0.30590 1.00000
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