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NaNpCrH6

Alexandria ALEX

Alex-ID: agm006934801 · Space group: P3m1 (#156)

Alexandria Database API

Basic Information

Formula
NaNpCrH6
Alex-ID
agm006934801
Elements
4
Sites
9
Space group
P3m1 (#156)
Crystal system
trigonal
Volume
79.77
ų
Cell a
4.8589
Å
Cell b
4.8589
Å
Cell c
3.9015
Å
α angle
90.00
°
β angle
90.00
°
γ angle
120.00
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
NaNpCrH6
Na
1.00 · 11.1%
Np
1.00 · 11.1%
Cr
1.00 · 11.1%
H
6.00 · 66.7%

Energy & Stability

Energy above hull
0.0782
eV/atom
Formation energy
-0.1856
eV/atom
Corrected total energy
-44.9922
eV
Raw total energy
-44.9922
eV

Electronic Structure

Indirect band gap
0.0000
eV
Direct band gap
0.0000
eV
DOS at Fermi level
6.8250
Total magnetisation
2.0003
μB

Additional Information

Prototype ID

ABCD6_14_spg149

Decomposition

Na3CrH7 NpH3 CrH

Computed at

2024-06-24 12:09:03.256754

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: agm006934801).

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 agm006934801
data_agm006934801
_cell_length_a     4.85888
_cell_length_b     4.85888
_cell_length_c     3.90149
_cell_angle_alpha  90.00000
_cell_angle_beta   90.00000
_cell_angle_gamma  120.00000
_cell_volume       79.76907
_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 0.00000 0.00000 0.28963 1.00000
  Np1 Np 0.66667 0.33333 0.80694 1.00000
  Cr1 Cr 0.33333 0.66667 0.54036 1.00000
  H1 H 0.96485 0.48242 0.32859 1.00000
  H2 H 0.16717 0.33434 0.79233 1.00000
  H3 H 0.66566 0.83283 0.79233 1.00000
  H4 H 0.16717 0.83283 0.79233 1.00000
  H5 H 0.51758 0.03515 0.32859 1.00000
  H6 H 0.51758 0.48242 0.32859 1.00000
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