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Na2CrCuF7

Alexandria ALEX

Alex-ID: agm006227399 · Space group: Pnma (#62)

Basic Information

Formula
Na2CrCuF7
Alex-ID
agm006227399
Elements
4
Sites
44
Space group
Pnma (#62)
Crystal system
orthorhombic
Volume
576.77
ų
Cell a
7.1962
Å
Cell b
7.6446
Å
Cell c
10.4843
Å
α angle
90.00
°
β angle
90.00
°
γ angle
90.00
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
Na2CrCuF7
Na
8.00 · 18.2%
Cr
4.00 · 9.1%
Cu
4.00 · 9.1%
F
28.00 · 63.6%

Energy & Stability

Energy above hull
0.0099
eV/atom
Formation energy
-2.7222
eV/atom
Corrected total energy
-225.2382
eV
Raw total energy
-217.1862
eV

Electronic Structure

Indirect band gap
0.0982
eV
Direct band gap
0.1075
eV
DOS at Fermi level
12.3016
Total magnetisation
16.0064
μB

Additional Information

Prototype ID

ABC2D7_87_spg62

Decomposition

NaCrF4 Na3CrF6 CuF2

Computed at

2024-08-25 00:12:23.277325

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: agm006227399).

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 agm006227399
data_agm006227399
_cell_length_a     7.19624
_cell_length_b     7.64465
_cell_length_c     10.48428
_cell_angle_alpha  90.00000
_cell_angle_beta   90.00000
_cell_angle_gamma  90.00000
_cell_volume       576.76910
_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 0.50000 0.00000 1.00000
  Na2 Na 0.50000 0.50000 0.00000 1.00000
  Na3 Na 0.00000 0.00000 0.50000 1.00000
  Na4 Na 0.50000 0.00000 0.50000 1.00000
  Na5 Na 0.25000 0.21662 0.75452 1.00000
  Na6 Na 0.75000 0.78338 0.24548 1.00000
  Na7 Na 0.75000 0.71662 0.74548 1.00000
  Na8 Na 0.25000 0.28338 0.25452 1.00000
  Cr1 Cr 0.25000 0.71389 0.76219 1.00000
  Cr2 Cr 0.75000 0.28611 0.23781 1.00000
  Cr3 Cr 0.75000 0.21389 0.73781 1.00000
  Cr4 Cr 0.25000 0.78611 0.26219 1.00000
  Cu1 Cu 0.00000 0.00000 0.00000 1.00000
  Cu2 Cu 0.50000 0.00000 0.00000 1.00000
  Cu3 Cu 0.00000 0.50000 0.50000 1.00000
  Cu4 Cu 0.50000 0.50000 0.50000 1.00000
  F1 F 0.25000 0.09290 0.98990 1.00000
  F2 F 0.75000 0.90710 0.01010 1.00000
  F3 F 0.75000 0.59290 0.51010 1.00000
  F4 F 0.25000 0.40710 0.48990 1.00000
  F5 F 0.25000 0.93972 0.67195 1.00000
  F6 F 0.75000 0.06028 0.32805 1.00000
  F7 F 0.75000 0.43972 0.82805 1.00000
  F8 F 0.25000 0.56028 0.17195 1.00000
  F9 F 0.25000 0.48432 0.84793 1.00000
  F10 F 0.75000 0.51568 0.15207 1.00000
  F11 F 0.75000 0.98432 0.65207 1.00000
  F12 F 0.25000 0.01568 0.34793 1.00000
  F13 F 0.95216 0.14758 0.85309 1.00000
  F14 F 0.45216 0.85242 0.14691 1.00000
  F15 F 0.04784 0.64758 0.64691 1.00000
  F16 F 0.54784 0.35242 0.35309 1.00000
  F17 F 0.04784 0.85242 0.14691 1.00000
  F18 F 0.54784 0.14758 0.85309 1.00000
  F19 F 0.95216 0.35242 0.35309 1.00000
  F20 F 0.45216 0.64758 0.64691 1.00000
  F21 F 0.04721 0.76800 0.87729 1.00000
  F22 F 0.54721 0.23200 0.12271 1.00000
  F23 F 0.95279 0.26800 0.62271 1.00000
  F24 F 0.45279 0.73200 0.37729 1.00000
  F25 F 0.95279 0.23200 0.12271 1.00000
  F26 F 0.45279 0.76800 0.87729 1.00000
  F27 F 0.04721 0.73200 0.37729 1.00000
  F28 F 0.54721 0.26800 0.62271 1.00000
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