Navigation

HEAS Data Platform · Materials Science Database

K3Np(H3O4)2

Alexandria ALEX

Alex-ID: agm005234880 · Space group: P2_1/c (#14)

Basic Information

Formula
K3Np(H3O4)2
Alex-ID
agm005234880
Elements
4
Sites
36
Space group
P2_1/c (#14)
Crystal system
monoclinic
Volume
455.86
ų
Cell a
8.4413
Å
Cell b
7.6078
Å
Cell c
7.9437
Å
α angle
63.33
°
β angle
90.00
°
γ angle
90.00
°

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
0.0161
eV/atom
Formation energy
-2.0164
eV/atom
Corrected total energy
-223.2928
eV
Raw total energy
-212.0561
eV

Electronic Structure

Indirect band gap
1.3666
eV
Direct band gap
1.3682
eV
DOS at Fermi level
-0.0010
Total magnetisation
0.0000
μB

Additional Information

Prototype ID

AB3C6D8_3_spg14

Decomposition

K3Np(H3O4)2

Computed at

2024-10-18 15:23:54

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: agm005234880).

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 agm005234880
data_agm005234880
_cell_length_a     8.44134
_cell_length_b     7.60780
_cell_length_c     7.94372
_cell_angle_alpha  63.32828
_cell_angle_beta   90.00000
_cell_angle_gamma  90.00000
_cell_volume       455.86272
_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 0.00000 0.00000 0.50000 1.00000
  K2 K 0.18965 0.58611 0.45518 1.00000
  K3 K 0.81035 0.41389 0.54482 1.00000
  K4 K 0.68965 0.41389 0.04482 1.00000
  K5 K 0.50000 0.00000 0.00000 1.00000
  K6 K 0.31035 0.58611 0.95518 1.00000
  Np1 Np 0.50000 0.00000 0.50000 1.00000
  Np2 Np 0.00000 0.00000 0.00000 1.00000
  H1 H 0.20135 0.17120 0.67838 1.00000
  H2 H 0.02946 0.35400 0.17068 1.00000
  H3 H 0.70135 0.82880 0.82162 1.00000
  H4 H 0.79865 0.82880 0.32162 1.00000
  H5 H 0.47054 0.35400 0.67068 1.00000
  H6 H 0.97589 0.57260 0.12846 1.00000
  H7 H 0.52946 0.64600 0.32932 1.00000
  H8 H 0.29865 0.17120 0.17838 1.00000
  H9 H 0.97054 0.64600 0.82932 1.00000
  H10 H 0.47589 0.42740 0.37154 1.00000
  H11 H 0.02411 0.42740 0.87154 1.00000
  H12 H 0.52411 0.57260 0.62846 1.00000
  O1 O 0.58984 0.80784 0.79795 1.00000
  O2 O 0.41016 0.19216 0.20205 1.00000
  O3 O 0.42391 0.20113 0.57863 1.00000
  O4 O 0.69483 0.13458 0.42706 1.00000
  O5 O 0.08984 0.19216 0.70205 1.00000
  O6 O 0.57609 0.79887 0.42137 1.00000
  O7 O 0.50283 0.55916 0.26820 1.00000
  O8 O 0.07609 0.20113 0.07863 1.00000
  O9 O 0.19483 0.86542 0.07294 1.00000
  O10 O 0.92391 0.79887 0.92137 1.00000
  O11 O 0.91016 0.80784 0.29795 1.00000
  O12 O 0.30517 0.86542 0.57294 1.00000
  O13 O 0.49717 0.44084 0.73180 1.00000
  O14 O 0.80517 0.13458 0.92706 1.00000
  O15 O 0.00283 0.44084 0.23180 1.00000
  O16 O 0.99717 0.55916 0.76820 1.00000
Get direct link