Navigation

HEAS Data Platform · Materials Science Database

Na2CrH7

Alexandria ALEX

Alex-ID: agm007299528 · Space group: C2/c (#15)

Basic Information

Formula
Na2CrH7
Alex-ID
agm007299528
Elements
3
Sites
20
Space group
C2/c (#15)
Crystal system
monoclinic
Volume
154.83
ų
Cell a
5.3894
Å
Cell b
5.3894
Å
Cell c
11.1476
Å
α angle
43.82
°
β angle
43.82
°
γ angle
60.87
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
Na2CrH7
Na
4.00 · 20.0%
Cr
2.00 · 10.0%
H
14.00 · 70.0%

Energy & Stability

Energy above hull
0.0179
eV/atom
Formation energy
-0.1654
eV/atom
Corrected total energy
-73.1874
eV
Raw total energy
-73.1874
eV

Electronic Structure

Indirect band gap
0.8503
eV
Direct band gap
1.1563
eV
DOS at Fermi level
-0.0957
Total magnetisation
2.0000
μB

Additional Information

Prototype ID

AB2C7_1695_spg15

Decomposition

Na3CrH8 NaH7 CrH

Computed at

2024-04-22 09:30:20.609322

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: agm007299528).

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 agm007299528
data_agm007299528
_cell_length_a     5.38938
_cell_length_b     5.38938
_cell_length_c     11.14757
_cell_angle_alpha  43.81771
_cell_angle_beta   43.81771
_cell_angle_gamma  60.87236
_cell_volume       154.82573
_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
  Na1 Na 0.80132 0.30370 0.02749 1.00000
  Na2 Na 0.30370 0.80132 0.52749 1.00000
  Na3 Na 0.69630 0.19868 0.47251 1.00000
  Na4 Na 0.19868 0.69630 0.97251 1.00000
  Cr1 Cr 0.23018 0.76982 0.25000 1.00000
  Cr2 Cr 0.76982 0.23018 0.75000 1.00000
  H1 H 0.26376 0.01444 0.27504 1.00000
  H2 H 0.01444 0.26376 0.77504 1.00000
  H3 H 0.18636 0.46558 0.48969 1.00000
  H4 H 0.31222 0.38878 0.29233 1.00000
  H5 H 0.92791 0.07209 0.25000 1.00000
  H6 H 0.46558 0.18636 0.98969 1.00000
  H7 H 0.61122 0.68778 0.20767 1.00000
  H8 H 0.38878 0.31222 0.79233 1.00000
  H9 H 0.53442 0.81364 0.01031 1.00000
  H10 H 0.07209 0.92791 0.75000 1.00000
  H11 H 0.68778 0.61122 0.70767 1.00000
  H12 H 0.81364 0.53442 0.51031 1.00000
  H13 H 0.98556 0.73624 0.22496 1.00000
  H14 H 0.73624 0.98556 0.72496 1.00000
Get direct link