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Na8B9C7

Alexandria ALEX

Alex-ID: agm006172385 · Space group: Fmm2 (#42)

Basic Information

Formula
Na8B9C7
Alex-ID
agm006172385
Elements
3
Sites
24
Space group
Fmm2 (#42)
Crystal system
orthorhombic
Volume
236.89
ų
Cell a
9.7884
Å
Cell b
8.9240
Å
Cell c
5.6870
Å
α angle
80.83
°
β angle
64.16
°
γ angle
35.00
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
Na8B9C7
Na
8.00 · 33.3%
C
7.00 · 29.2%
B
9.00 · 37.5%

Energy & Stability

Energy above hull
0.1201
eV/atom
Formation energy
0.0490
eV/atom
Corrected total energy
-134.0395
eV
Raw total energy
-134.0395
eV

Electronic Structure

Indirect band gap
0.0000
eV
Direct band gap
0.0092
eV
DOS at Fermi level
7.0365
Total magnetisation
0.1579
μB

Additional Information

Prototype ID

A7B8C9_5_spg42

Decomposition

NaB13C2 Na C

Computed at

2023-09-10 04:25:39

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: agm006172385).

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 agm006172385
data_agm006172385
_cell_length_a     9.78844
_cell_length_b     8.92396
_cell_length_c     5.68699
_cell_angle_alpha  80.83096
_cell_angle_beta   64.16223
_cell_angle_gamma  34.99812
_cell_volume       236.89309
_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 0.50039 0.50017 0.99951 1.00000
  Na2 Na 0.24982 0.24962 0.25007 1.00000
  Na3 Na 0.50040 0.50020 0.49981 1.00000
  Na4 Na 0.24981 0.24960 0.75040 1.00000
  Na5 Na 0.00152 0.00149 0.99852 1.00000
  Na6 Na 0.74850 0.74849 0.25152 1.00000
  Na7 Na 0.00007 0.00049 0.49983 1.00000
  Na8 Na 0.74951 0.74993 0.75039 1.00000
  C1 C 0.29164 0.95836 0.54164 1.00000
  C2 C 0.20819 0.54181 0.95838 1.00000
  C3 C 0.29194 0.95853 0.04147 1.00000
  C4 C 0.70837 0.04163 0.45822 1.00000
  C5 C 0.79147 0.45806 0.54194 1.00000
  C6 C 0.70835 0.04165 0.95835 1.00000
  C7 C 0.79164 0.45836 0.04164 1.00000
  B1 B 0.20826 0.54174 0.45831 1.00000
  B2 B 0.95825 0.29164 0.70836 1.00000
  B3 B 0.55436 0.19564 0.28535 1.00000
  B4 B 0.95836 0.29164 0.20836 1.00000
  B5 B 0.54167 0.20833 0.79167 1.00000
  B6 B 0.45836 0.79164 0.70836 1.00000
  B7 B 0.03539 0.71461 0.28533 1.00000
  B8 B 0.45836 0.79175 0.20825 1.00000
  B9 B 0.03540 0.71460 0.80434 1.00000
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