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Ta(SiH2)2

Alexandria ALEX

Alex-ID: agm096132405 · Space group: Pmm2 (#25)

Alexandria Database API

Basic Information

Formula
Ta(SiH2)2
Alex-ID
agm096132405
Elements
3
Sites
7
Space group
Pmm2 (#25)
Crystal system
orthorhombic
Volume
68.18
ų
Cell a
2.9889
Å
Cell b
4.5754
Å
Cell c
4.9855
Å
α angle
90.00
°
β angle
89.78
°
γ angle
90.00
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
Ta(SiH2)2
Ta
1.00 · 14.3%
Si
2.00 · 28.6%
H
4.00 · 57.1%

Energy & Stability

Energy above hull
0.4735
eV/atom
Formation energy
0.2125
eV/atom
Corrected total energy
-34.1704
eV
Raw total energy
-34.1704
eV

Electronic Structure

Indirect band gap
0.0000
eV
Direct band gap
0.0000
eV
DOS at Fermi level
1.9275
Total magnetisation
0.0000
μB

Additional Information

Prototype ID

AB2C4_6182_spg47

Decomposition

Ta10Si6H SiH20 TaSi2

Computed at

2025-04-29 22:35:24

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: agm096132405).

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 agm096132405
data_agm096132405
_cell_length_a     2.98885
_cell_length_b     4.57542
_cell_length_c     4.98548
_cell_angle_alpha  90.00000
_cell_angle_beta   89.78222
_cell_angle_gamma  90.00000
_cell_volume       68.17715
_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
  Ta1 Ta 0.01531 0.00000 0.07211 1.00000
  Si1 Si 0.24433 0.50000 0.81841 1.00000
  Si2 Si 0.25380 0.50000 0.32167 1.00000
  H1 H 0.50547 0.00000 0.30499 1.00000
  H2 H 0.98770 0.00000 0.66763 1.00000
  H3 H 0.98532 0.00000 0.47556 1.00000
  H4 H 0.50808 0.00000 0.83963 1.00000
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