Navigation

HEAS Data Platform · Materials Science Database

K3Np(H3O4)2

Alexandria ALEX

Alex-ID: agm005287525 · Space group: P2_1/c (#14)

Basic Information

Formula
K3Np(H3O4)2
Alex-ID
agm005287525
Elements
4
Sites
36
Space group
P2_1/c (#14)
Crystal system
monoclinic
Volume
459.25
ų
Cell a
7.7739
Å
Cell b
7.9549
Å
Cell c
8.4448
Å
α angle
90.00
°
β angle
90.00
°
γ angle
118.43
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
K3Np(H3O4)2
K
6.00 · 16.7%
Np
2.00 · 5.6%
H
12.00 · 33.3%
O
16.00 · 44.4%

Energy & Stability

Energy above hull
0.0000
eV/atom
Formation energy
-2.0325
eV/atom
Corrected total energy
-223.8714
eV
Raw total energy
-212.6348
eV

Electronic Structure

Indirect band gap
1.5369
eV
Direct band gap
1.5374
eV
DOS at Fermi level
-0.0001
Total magnetisation
0.0000
μB

Additional Information

Prototype ID

AB3C6D8_3_spg14

Decomposition

K3Np(H3O4)2

Computed at

2024-10-18 15:13:14

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: agm005287525).

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 agm005287525
data_agm005287525
_cell_length_a     7.77394
_cell_length_b     7.95491
_cell_length_c     8.44480
_cell_angle_alpha  90.00000
_cell_angle_beta   90.00000
_cell_angle_gamma  118.43107
_cell_volume       459.24871
_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
  K1 K 0.50000 0.50000 0.00000 1.00000
  K2 K 0.00000 0.50000 0.50000 1.00000
  K3 K 0.55389 0.09766 0.19180 1.00000
  K4 K 0.94611 0.90234 0.69180 1.00000
  K5 K 0.44611 0.90234 0.80820 1.00000
  K6 K 0.05389 0.09766 0.30820 1.00000
  Np1 Np 0.00000 0.50000 0.00000 1.00000
  Np2 Np 0.50000 0.50000 0.50000 1.00000
  H1 H 0.13947 0.30450 0.78699 1.00000
  H2 H 0.36053 0.69550 0.28699 1.00000
  H3 H 0.86053 0.69550 0.21301 1.00000
  H4 H 0.63947 0.30450 0.71301 1.00000
  H5 H 0.12308 0.92745 0.04013 1.00000
  H6 H 0.37692 0.07255 0.54013 1.00000
  H7 H 0.87692 0.07255 0.95987 1.00000
  H8 H 0.62308 0.92745 0.45987 1.00000
  H9 H 0.18280 0.13345 0.96254 1.00000
  H10 H 0.31720 0.86655 0.46254 1.00000
  H11 H 0.81720 0.86655 0.03746 1.00000
  H12 H 0.68280 0.13345 0.53746 1.00000
  O1 O 0.73560 0.33654 0.93071 1.00000
  O2 O 0.76440 0.66346 0.43071 1.00000
  O3 O 0.26440 0.66346 0.06929 1.00000
  O4 O 0.23560 0.33654 0.56929 1.00000
  O5 O 0.94211 0.36725 0.19568 1.00000
  O6 O 0.55789 0.63275 0.69568 1.00000
  O7 O 0.05789 0.63275 0.80432 1.00000
  O8 O 0.44211 0.36725 0.30432 1.00000
  O9 O 0.09654 0.27494 0.89843 1.00000
  O10 O 0.40346 0.72506 0.39843 1.00000
  O11 O 0.90346 0.72506 0.10157 1.00000
  O12 O 0.59654 0.27494 0.60157 1.00000
  O13 O 0.23711 0.04799 0.00226 1.00000
  O14 O 0.26289 0.95201 0.50226 1.00000
  O15 O 0.76289 0.95201 0.99774 1.00000
  O16 O 0.73711 0.04799 0.49774 1.00000
Get direct link