Basic Information
Formula
IrC
MP-ID
mp-1001789
Elements
2
Sites
2
Density
13.6245
g/cm³
Volume
24.89
ų
Cell a
3.2773
Å
Cell b
3.2773
Å
Cell c
3.2773
Å
α Angle
60.00
°
β Angle
60.00
°
γ Angle
60.00
°
Space Group
F-43m
Point Group
-43m
Crystal System
Cubic
Bravais Lattice
cF
Stability
No
Packing Fraction
0.7405
X-ray Diffraction
Diffraction Pattern
X-axis: 2θ (°); Y-axis: relative intensity; Cu Kα ; λ=1.5418 Å
Diffraction Peaks (Top 6)
| 2θ | d (Å) | I | hkl |
|---|---|---|---|
| 33.49 | 2.6759 | 100.0 | (1,1,1) |
| 38.86 | 2.3174 | 44.9 | (1,1,0) |
| 56.13 | 1.6387 | 38.1 | (2,1,1) |
| 66.96 | 1.3975 | 41.4 | (2,2,1) |
| 70.37 | 1.3380 | 11.0 | (2,2,2) |
| 83.41 | 1.1587 | 6.2 | (2,2,0) |
Energy Properties
Formation Energy/atom
0.53192
eV/atom
Energy/atom
-30.62137
eV/atom
Energy above Hull
0.5319
eV/atom
Uncorrected Energy
-8.5016
eV/atom
Volume/atom
12.45
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
0.0017
μB
Mag. Ordering
NM
Mag. Sites
0
Magnetization/Volume
0.000070
μB/ų
Elastic Properties
KVRH
274.838
GPa
GVRH
72.735
GPa
Young's Modulus E
200.516
GPa
Poisson Ratio ν
0.378
Pugh Ratio K/G
3.779
Vickers Hardness Est.
2.184
GPa
Ductility
Brittle
Anisotropy
0.794
Lame λ
226.348
GPa
Feature Analysis
Element Composition (atomic fraction)
Composition Info
Major / Matrix Element
Ir · 0.500
Element Family
5d-TM
Solute Fraction
0.500
Interstitial Fraction
0.500
Elastic Modulus Comparison (GPa)
Elastic Features
Elastic Anisotropy AU
0.7940
Homogeneous Poisson ν
0.3780
Debye Temperature
334.9
K
Sound Velocity
2,607.8
m/s
Homogeneity
0.3780
Related Tasks
Citation & References
Materials Project Page
https://materialsproject.org/materials/mp-1001789
Reference Citation
The crystal structure and related material properties of IrC were obtained from the Materials Project database (MP-ID: mp-1001789, 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_IrC
_symmetry_space_group_name_H-M 'P 1'
_cell_length_a 3.27732397
_cell_length_b 3.27732397
_cell_length_c 3.27732397
_cell_angle_alpha 60.00000000
_cell_angle_beta 60.00000000
_cell_angle_gamma 60.00000000
_symmetry_Int_Tables_number 1
_chemical_formula_structural IrC
_chemical_formula_sum 'Ir1 C1'
_cell_volume 24.89104463
_cell_formula_units_Z 1
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
Ir Ir0 1 0.00000000 0.00000000 0.00000000 1.0
C C1 1 0.25000000 0.25000000 0.25000000 1.0
