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Hg2Ge(As2O7)2

Alexandria ALEX

Alex-ID: agm020025112 · Space group: C2/c (#15)

Basic Information

Formula
Hg2Ge(As2O7)2
Alex-ID
agm020025112
Elements
4
Sites
42
Space group
C2/c (#15)
Crystal system
monoclinic
Volume
716.50
ų
Cell a
9.7256
Å
Cell b
9.7256
Å
Cell c
13.9520
Å
α angle
77.75
°
β angle
102.25
°
γ angle
146.17
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
Hg2Ge(As2O7)2
Hg
4.00 · 9.5%
Ge
2.00 · 4.8%
As
8.00 · 19.0%
O
28.00 · 66.7%

Energy & Stability

Energy above hull
0.0655
eV/atom
Formation energy
-1.4883
eV/atom
Corrected total energy
-249.2144
eV
Raw total energy
-229.5503
eV

Electronic Structure

Indirect band gap
1.7868
eV
Direct band gap
1.7868
eV
DOS at Fermi level
0.0000
Total magnetisation
0.0001
μB

Additional Information

Prototype ID

AB2C4D14_1_spg15

Decomposition

Hg(AsO3)2 GeO2

Computed at

2025-04-02 14:46:57

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: agm020025112).

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 agm020025112
data_agm020025112
_cell_length_a     9.72562
_cell_length_b     9.72562
_cell_length_c     13.95200
_cell_angle_alpha  77.74951
_cell_angle_beta   102.25049
_cell_angle_gamma  146.16543
_cell_volume       716.49847
_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
  Hg1 Hg 0.37264 0.89753 0.62567 1.00000
  Hg2 Hg 0.89753 0.37264 0.87433 1.00000
  Hg3 Hg 0.10247 0.62736 0.12567 1.00000
  Hg4 Hg 0.62736 0.10247 0.37433 1.00000
  Ge1 Ge 0.39248 0.39248 0.75000 1.00000
  Ge2 Ge 0.60752 0.60752 0.25000 1.00000
  As1 As 0.12739 0.39253 0.57675 1.00000
  As2 As 0.45531 0.69863 0.86166 1.00000
  As3 As 0.60747 0.87261 0.07675 1.00000
  As4 As 0.30137 0.54469 0.36166 1.00000
  As5 As 0.69863 0.45531 0.63834 1.00000
  As6 As 0.39253 0.12739 0.92325 1.00000
  As7 As 0.54469 0.30137 0.13834 1.00000
  As8 As 0.87261 0.60747 0.42325 1.00000
  O1 O 0.12767 0.23953 0.67141 1.00000
  O2 O 0.56242 0.64496 0.81605 1.00000
  O3 O 0.37868 0.69030 0.61154 1.00000
  O4 O 0.60557 0.77114 0.98185 1.00000
  O5 O 0.76047 0.87233 0.17141 1.00000
  O6 O 0.35504 0.43758 0.31605 1.00000
  O7 O 0.14294 0.41233 0.86432 1.00000
  O8 O 0.84786 0.23446 0.54992 1.00000
  O9 O 0.55340 0.93830 0.80530 1.00000
  O10 O 0.30970 0.62132 0.11154 1.00000
  O11 O 0.22886 0.39443 0.48185 1.00000
  O12 O 0.58767 0.85706 0.36432 1.00000
  O13 O 0.76554 0.15214 0.04992 1.00000
  O14 O 0.06170 0.44660 0.30530 1.00000
  O15 O 0.93830 0.55340 0.69470 1.00000
  O16 O 0.23446 0.84786 0.95008 1.00000
  O17 O 0.41233 0.14294 0.63568 1.00000
  O18 O 0.77114 0.60557 0.51815 1.00000
  O19 O 0.69030 0.37868 0.88846 1.00000
  O20 O 0.44660 0.06170 0.19470 1.00000
  O21 O 0.15214 0.76554 0.45008 1.00000
  O22 O 0.85706 0.58767 0.13568 1.00000
  O23 O 0.64496 0.56242 0.68395 1.00000
  O24 O 0.23953 0.12767 0.82859 1.00000
  O25 O 0.39443 0.22886 0.01815 1.00000
  O26 O 0.62132 0.30970 0.38846 1.00000
  O27 O 0.43758 0.35504 0.18395 1.00000
  O28 O 0.87233 0.76047 0.32859 1.00000
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