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HEAS Data Platform · Materials Science Database

K4NpC3O11

Alexandria ALEX

Alex-ID: agm010447463 · Space group: P-62c (#190)

Basic Information

Formula
K4NpC3O11
Alex-ID
agm010447463
Elements
4
Sites
38
Space group
P-62c (#190)
Crystal system
hexagonal
Volume
676.13
ų
Cell a
9.4402
Å
Cell b
9.4402
Å
Cell c
8.7606
Å
α angle
90.00
°
β angle
90.00
°
γ angle
120.00
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
K4NpC3O11
K
8.00 · 21.1%
Np
2.00 · 5.3%
C
6.00 · 15.8%
O
22.00 · 57.9%

Energy & Stability

Energy above hull
0.0121
eV/atom
Formation energy
-2.3814
eV/atom
Corrected total energy
-289.6149
eV
Raw total energy
-274.1645
eV

Electronic Structure

Indirect band gap
0.0000
eV
Direct band gap
0.0002
eV
DOS at Fermi level
17.3005
Total magnetisation
2.0000
μB

Additional Information

Prototype ID

AB3C4D11_28_spg190

Decomposition

K4NpC3O11

Computed at

2024-07-20 15:39:13.600631

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: agm010447463).

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 agm010447463
data_agm010447463
_cell_length_a     9.44023
_cell_length_b     9.44023
_cell_length_c     8.76061
_cell_angle_alpha  90.00000
_cell_angle_beta   90.00000
_cell_angle_gamma  120.00000
_cell_volume       676.13058
_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 0.69778 0.69778 0.50000 1.00000
  K2 K 0.69778 0.69778 0.00000 1.00000
  K3 K 0.00000 0.30222 0.50000 1.00000
  K4 K 0.30222 0.00000 0.00000 1.00000
  K5 K 0.00000 0.30222 0.00000 1.00000
  K6 K 0.30222 0.00000 0.50000 1.00000
  K7 K 0.66667 0.33333 0.25000 1.00000
  K8 K 0.33333 0.66667 0.75000 1.00000
  Np1 Np 0.66667 0.33333 0.75000 1.00000
  Np2 Np 0.33333 0.66667 0.25000 1.00000
  C1 C 0.36005 0.33642 0.75000 1.00000
  C2 C 0.63995 0.97636 0.25000 1.00000
  C3 C 0.66358 0.02364 0.75000 1.00000
  C4 C 0.33642 0.36005 0.25000 1.00000
  C5 C 0.02364 0.66358 0.25000 1.00000
  C6 C 0.97636 0.63995 0.75000 1.00000
  O1 O 0.50375 0.47220 0.75000 1.00000
  O2 O 0.77456 0.10933 0.25000 1.00000
  O3 O 0.33333 0.66667 0.04169 1.00000
  O4 O 0.16833 0.79785 0.25000 1.00000
  O5 O 0.66667 0.33333 0.54169 1.00000
  O6 O 0.03155 0.52780 0.25000 1.00000
  O7 O 0.83167 0.62952 0.75000 1.00000
  O8 O 0.10933 0.77456 0.75000 1.00000
  O9 O 0.20215 0.37048 0.25000 1.00000
  O10 O 0.52780 0.03155 0.75000 1.00000
  O11 O 0.47220 0.50375 0.25000 1.00000
  O12 O 0.79785 0.16833 0.75000 1.00000
  O13 O 0.49625 0.96845 0.25000 1.00000
  O14 O 0.37048 0.20215 0.75000 1.00000
  O15 O 0.33333 0.66667 0.45831 1.00000
  O16 O 0.66667 0.33333 0.95831 1.00000
  O17 O 0.96845 0.49625 0.75000 1.00000
  O18 O 0.62952 0.83167 0.25000 1.00000
  O19 O 0.33476 0.22544 0.25000 1.00000
  O20 O 0.22544 0.33476 0.75000 1.00000
  O21 O 0.89067 0.66524 0.25000 1.00000
  O22 O 0.66524 0.89067 0.75000 1.00000
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