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NpAg(H4Ir)2

Alexandria ALEX

Alex-ID: agm004875861 · Space group: C2/m (#12)

Basic Information

Formula
NpAg(H4Ir)2
Alex-ID
agm004875861
Elements
4
Sites
12
Space group
C2/m (#12)
Crystal system
monoclinic
Volume
106.29
ų
Cell a
4.3844
Å
Cell b
4.8456
Å
Cell c
6.3591
Å
α angle
63.76
°
β angle
69.83
°
γ angle
63.10
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
NpAg(H4Ir)2
Np
1.00 · 8.3%
Ag
1.00 · 8.3%
H
8.00 · 66.7%
Ir
2.00 · 16.7%

Energy & Stability

Energy above hull
0.1591
eV/atom
Formation energy
-0.0490
eV/atom
Corrected total energy
-60.0196
eV
Raw total energy
-60.0196
eV

Electronic Structure

Indirect band gap
0.0000
eV
Direct band gap
0.0297
eV
DOS at Fermi level
10.2416
Total magnetisation
4.1611
μB

Additional Information

Prototype ID

ABC2D8_697_spg12

Decomposition

Ag3H6Ir NpH6Ir Ir

Computed at

2023-01-01 22:26:57.802931

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: agm004875861).

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 agm004875861
data_agm004875861
_cell_length_a     4.38442
_cell_length_b     4.84561
_cell_length_c     6.35910
_cell_angle_alpha  63.76471
_cell_angle_beta   69.83431
_cell_angle_gamma  63.10146
_cell_volume       106.28837
_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
  Np1 Np 0.50000 0.50000 0.50000 1.00000
  Ag1 Ag 0.00000 0.00000 0.00000 1.00000
  H1 H 0.92582 0.49492 0.65344 1.00000
  H2 H 0.72611 0.42795 0.11983 1.00000
  H3 H 0.07418 0.50508 0.34656 1.00000
  H4 H 0.27389 0.57205 0.88017 1.00000
  H5 H 0.55867 0.04314 0.33841 1.00000
  H6 H 0.44133 0.95686 0.66159 1.00000
  H7 H 0.05978 0.04314 0.33841 1.00000
  H8 H 0.94022 0.95686 0.66159 1.00000
  Ir1 Ir 0.27537 0.29016 0.15911 1.00000
  Ir2 Ir 0.72463 0.70984 0.84089 1.00000
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