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SiHg2(P2O7)2

Alexandria ALEX

Alex-ID: agm020033726 · Space group: C2/c (#15)

Basic Information

Formula
SiHg2(P2O7)2
Alex-ID
agm020033726
Elements
4
Sites
42
Space group
C2/c (#15)
Crystal system
monoclinic
Volume
642.90
ų
Cell a
9.4402
Å
Cell b
9.4402
Å
Cell c
13.1497
Å
α angle
76.52
°
β angle
103.48
°
γ angle
145.55
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
SiHg2(P2O7)2
Si
2.00 · 4.8%
Hg
4.00 · 9.5%
P
8.00 · 19.0%
O
28.00 · 66.7%

Energy & Stability

Energy above hull
0.0100
eV/atom
Formation energy
-2.3453
eV/atom
Corrected total energy
-292.9002
eV
Raw total energy
-273.2361
eV

Electronic Structure

Indirect band gap
2.8216
eV
Direct band gap
2.8216
eV
DOS at Fermi level
0.0000
Total magnetisation
0.0000
μB

Additional Information

Prototype ID

AB2C4D14_1_spg15

Decomposition

Hg2P2O7 Hg(PO3)2 Si5P6O25

Computed at

2024-12-19 21:53:56

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: agm020033726).

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 agm020033726
data_agm020033726
_cell_length_a     9.44022
_cell_length_b     9.44022
_cell_length_c     13.14974
_cell_angle_alpha  76.51781
_cell_angle_beta   103.48219
_cell_angle_gamma  145.54761
_cell_volume       642.90196
_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
  Si1 Si 0.44020 0.44020 0.25000 1.00000
  Si2 Si 0.55980 0.55980 0.75000 1.00000
  Hg1 Hg 0.34771 0.88796 0.11964 1.00000
  Hg2 Hg 0.88796 0.34771 0.38036 1.00000
  Hg3 Hg 0.11204 0.65229 0.61964 1.00000
  Hg4 Hg 0.65229 0.11204 0.88036 1.00000
  P1 P 0.16639 0.41870 0.06808 1.00000
  P2 P 0.45811 0.70115 0.35444 1.00000
  P3 P 0.58130 0.83361 0.56808 1.00000
  P4 P 0.29885 0.54189 0.85444 1.00000
  P5 P 0.70115 0.45811 0.14556 1.00000
  P6 P 0.41870 0.16639 0.43192 1.00000
  P7 P 0.54189 0.29885 0.64556 1.00000
  P8 P 0.83361 0.58130 0.93192 1.00000
  O1 O 0.20941 0.31415 0.16270 1.00000
  O2 O 0.57080 0.67258 0.30413 1.00000
  O3 O 0.36821 0.69489 0.08254 1.00000
  O4 O 0.58037 0.74880 0.47287 1.00000
  O5 O 0.68585 0.79059 0.66270 1.00000
  O6 O 0.32742 0.42920 0.80413 1.00000
  O7 O 0.17476 0.44402 0.35015 1.00000
  O8 O 0.89650 0.24123 0.05199 1.00000
  O9 O 0.54886 0.92564 0.30523 1.00000
  O10 O 0.30511 0.63179 0.58254 1.00000
  O11 O 0.25120 0.41963 0.97287 1.00000
  O12 O 0.55598 0.82524 0.85015 1.00000
  O13 O 0.75877 0.10350 0.55199 1.00000
  O14 O 0.07436 0.45114 0.80523 1.00000
  O15 O 0.92564 0.54886 0.19477 1.00000
  O16 O 0.24123 0.89650 0.44801 1.00000
  O17 O 0.44402 0.17476 0.14985 1.00000
  O18 O 0.74880 0.58037 0.02713 1.00000
  O19 O 0.69489 0.36821 0.41746 1.00000
  O20 O 0.45114 0.07436 0.69477 1.00000
  O21 O 0.10350 0.75877 0.94801 1.00000
  O22 O 0.82524 0.55598 0.64985 1.00000
  O23 O 0.67258 0.57080 0.19587 1.00000
  O24 O 0.31415 0.20941 0.33730 1.00000
  O25 O 0.41963 0.25120 0.52713 1.00000
  O26 O 0.63179 0.30511 0.91746 1.00000
  O27 O 0.42920 0.32742 0.69587 1.00000
  O28 O 0.79059 0.68585 0.83730 1.00000
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