Basic Information
Formula
RuC
MP-ID
mp-999259
Elements
2
Sites
4
Density
8.8920
g/cm³
Volume
42.23
ų
Cell a
6.4878
Å
Cell b
6.4878
Å
Cell c
6.4878
Å
α Angle
24.79
°
β Angle
24.79
°
γ Angle
24.79
°
Space Group
R-3m
Point Group
-3m
Crystal System
Trigonal
Bravais Lattice
hR
Stability
No
Packing Fraction
-
X-ray Diffraction
Diffraction Pattern
X-axis: 2θ (°); Y-axis: relative intensity; Cu Kα ; λ=1.5418 Å
Diffraction Peaks (Top 24)
| 2θ | d (Å) | I | hkl |
|---|---|---|---|
| 14.09 | 6.2854 | 66.6 | (1,1,1) |
| 28.40 | 3.1427 | 69.5 | (2,2,2) |
| 37.59 | 2.3928 | 7.3 | (1,0,0) |
| 37.59 | 2.3928 | 3.7 | (0,0,1) |
| 38.52 | 2.3370 | 100.0 | (1,0,1) |
| 38.52 | 2.3370 | 50.0 | (1,1,0) |
| 42.08 | 2.1475 | 85.3 | (2,1,1) |
| 42.08 | 2.1475 | 42.7 | (1,1,2) |
| 43.18 | 2.0951 | 36.4 | (3,3,3) |
| 44.59 | 2.0321 | 54.1 | (2,2,1) |
| 50.81 | 1.7971 | 37.3 | (3,2,2) |
| 50.81 | 1.7971 | 18.7 | (2,2,3) |
| 54.42 | 1.6859 | 15.2 | (3,3,2) |
| 62.52 | 1.4856 | 2.7 | (4,3,3) |
| 62.52 | 1.4856 | 1.4 | (3,3,4) |
| 66.97 | 1.3973 | 41.3 | (4,4,3) |
| 67.22 | 1.3928 | 14.1 | (1,-1,0) |
| 67.22 | 1.3928 | 28.2 | (1,0,-1) |
| 69.08 | 1.3598 | 2.4 | (2,0,1) |
| 69.08 | 1.3598 | 4.8 | (2,1,0) |
| 74.52 | 1.2733 | 8.5 | (3,1,2) |
| 74.52 | 1.2733 | 8.5 | (3,2,1) |
| 74.52 | 1.2733 | 8.5 | (2,1,3) |
| 75.65 | 1.2571 | 8.3 | (5,5,5) |
Energy Properties
Formation Energy/atom
0.36613
eV/atom
Energy/atom
-17.31975
eV/atom
Energy above Hull
0.3661
eV/atom
Uncorrected Energy
-8.8854
eV/atom
Volume/atom
10.56
ų
c/a Ratio
1.0000
Electronic Properties
Metallic
Metal
Band Gap
0
eV
Direct Gap
No
CBM
N/A
eV
Magnetic Properties
Magnetic
No
Total Mag. Moment
0.0000
μB
Mag. Ordering
NM
Mag. Sites
0
Magnetization/Volume
0.000000
μB/ų
Elastic Properties
KVRH
284.565
GPa
GVRH
160.065
GPa
Young's Modulus E
404.376
GPa
Poisson Ratio ν
0.263
Pugh Ratio K/G
1.778
Vickers Hardness Est.
-
GPa
Ductility
Brittle
Anisotropy
0.498
Lame λ
177.855
GPa
Feature Analysis
Element Composition (atomic fraction)
Composition Info
Major / Matrix Element
Ru · 0.500
Element Family
N/A
Solute Fraction
0.500
Interstitial Fraction
0.500
ROM Blended-Feature Radar
Rating & Classification
Tier
A
Score
0.424
Family
Binary Alloy
Matrix Element
Ru · 0.500
Related Tasks
Citation & References
Materials Project Page
https://materialsproject.org/materials/mp-999259
Reference Citation
The crystal structure and related material properties of RuC were obtained from the Materials Project database (MP-ID: mp-999259, database version v2026.04.13).
Literature Citation
Horton, M.K., Huck, P., Yang, R.X. et al. Accelerated data-driven materials science with the Materials Project. Nat. Mater. 24, 1522–1532 (2025). https://doi.org/10.1038/s41563-025-02272-0
3D Crystal Structure Rendering
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Raw CIF Data
# generated using pymatgen
data_RuC
_symmetry_space_group_name_H-M 'P 1'
_cell_length_a 6.48783009
_cell_length_b 6.48783009
_cell_length_c 6.48782950
_cell_angle_alpha 24.79257404
_cell_angle_beta 24.79257404
_cell_angle_gamma 24.79257970
_symmetry_Int_Tables_number 1
_chemical_formula_structural RuC
_chemical_formula_sum 'Ru2 C2'
_cell_volume 42.23473332
_cell_formula_units_Z 2
loop_
_symmetry_equiv_pos_site_id
_symmetry_equiv_pos_as_xyz
1 'x, y, z'
loop_
_atom_site_type_symbol
_atom_site_label
_atom_site_symmetry_multiplicity
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_occupancy
Ru Ru0 1 0.22894700 0.22894700 0.22894700 1.0
Ru Ru1 1 0.77105300 0.77105300 0.77105300 1.0
C C2 1 0.03712400 0.03712400 0.03712400 1.0
C C3 1 0.96287600 0.96287600 0.96287600 1.0
