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CuPbO2

High-Entropy Materials HEA Traditional Materials TRA

MP-ID: mp-1097010 · Space group: Imma (#74)

Basic Information

Formula
CuPbO2
MP-ID
mp-1097010
Elements
3
Sites
8
Density
8.7076
g/cm³
Volume
115.47
ų
Cell a
5.6888
Å
Cell b
5.6888
Å
Cell c
5.6888
Å
α Angle
129.14
°
β Angle
123.20
°
γ Angle
79.70
°
Space Group
Imma
Point Group
mmm
Crystal System
Orthorhombic
Bravais Lattice
Orthorhombic I
Stability
No
Packing Fraction
0.6800

X-ray Diffraction

Diffraction Pattern
X-axis: 2θ (°); Y-axis: relative intensity; CuKa ; λ=1.5406 Å
Diffraction Peaks (Top 24)
2θd (Å)Ihkl
20.33 4.3673 13.2 (1,1,-1)
24.55 3.6264 23.0 (1,-1,0)
32.08 2.7900 100.0 (2,0,-1)
33.11 2.7059 17.8 (1,-1,1)
35.91 2.5011 1.2 (2,1,-2)
36.79 2.4427 13.3 (1,-1,-1)
39.16 2.3002 9.1 (0,2,-2)
41.35 2.1837 11.2 (2,2,-2)
42.40 2.1319 7.1 (2,0,-2)
48.67 1.8707 8.0 (2,2,-3)
50.32 1.8132 17.2 (2,-2,0)
53.96 1.6993 12.8 (1,3,-3)
54.20 1.6922 3.0 (2,-2,1)
54.82 1.6746 4.6 (3,-1,-1)
56.53 1.6280 11.0 (3,1,-3)
58.49 1.5779 18.1 (1,-3,2)
59.26 1.5594 2.2 (2,-2,-1)
63.33 1.4686 13.8 (3,-1,-2)
63.95 1.4558 1.3 (3,3,-3)
67.10 1.3950 10.8 (4,0,-2)
69.47 1.3529 3.2 (2,-2,2)
69.59 1.3510 10.8 (3,3,-4)
70.39 1.3376 2.9 (0,4,-3)
73.24 1.2924 1.1 (1,-3,3)
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Energy Properties

Formation Energy/atom
-1.15915
eV/atom
Energy/atom
-5.58610
eV/atom
Energy above Hull
0.0472
eV/atom
Uncorrected Energy
-5.2426
eV/atom
Volume/atom
14.43
ų
c/a Ratio
-

Electronic Properties

Metallic
Metal
Band Gap
0
eV
Direct Gap
No
CBM
N/A
eV

Magnetic Properties

Magnetic
No
Total Mag. Moment
0.0700
μB
Mag. Ordering
NM
Mag. Sites
0
Magnetization/Volume
0.000610
μB/ų

Elastic Properties

Elastic data not available

Feature Analysis

Composition Overview

Element Composition (atomic fraction)
Composition Info
Major / Matrix Element
O · 0.500
Element Family
Metalloid-Nonmetal
Solute Fraction
0.500
Interstitial Fraction
0.000

High-Entropy Alloy Features

Composite Radar (normalized)
Element-Class Share
Mix Entropy ΔS/R
1.0397
HEA criterion (>1.0 = high entropy)
Mix Entropy ΔS
8.6442
J/mol·K
Ω Parameter
2.9797
Ω > 1.1 favors solid solution
Atomic Size Mismatch δr
46.028%
δr < 6.6% favors single-phase solid solution
Electronegativity Diff Δχ
0.6797
smaller = more stable mixing
VEC
5.750
valence electron concentration, affects phase stability
Mix Enthalpy ΔH_mix
1.500
kJ/mol; negative = exothermic mixing
Entropy Norm
0.9464
SS Former
0
Phase Tendency
IM

Traditional Material Features

ROM Blended-Feature Radar
Rating & Classification
Tier
B
Score
0.477
Family
O-rich Multi-Component
Matrix Element
O · 0.500

Related Tasks

Citation & References

Materials Project Page
https://materialsproject.org/materials/mp-1097010
Reference Citation

The crystal structure and related material properties of CuPbO2 were obtained from the Materials Project database (MP-ID: mp-1097010, 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

BibTeX
@article{Horton2025,
  author  = {Horton, Matthew K. and Huck, Patrick and Yang, Ruo Xi and Munro, Jason M. and Dwaraknath, Shyam and Ganose, Alex M. and Kingsbury, Ryan S. and Wen, Mingjian and Shen, Jimmy X. and Mathis, Tyler S. and Kaplan, Aaron D. and Berket, Karlo and Riebesell, Janosh and George, Janine and Rosen, Andrew S. and Spotte-Smith, Evan W. C. and McDermott, Matthew J. and Cohen, Orion A. and Dunn, Alex and Kuner, Matthew C. and Rignanese, Gian-Marco and Petretto, Guido and Waroquiers, David and Griffin, Sinead M. and Neaton, Jeffrey B. and Chrzan, Daryl C. and Asta, Mark and Hautier, Geoffroy and Cholia, Shreyas and Ceder, Gerbrand and Ong, Shyue Ping and Jain, Anubhav and Persson, Kristin A.},
  title   = {Accelerated data-driven materials science with the Materials Project},
  journal = {Nature Materials},
  year    = {2025},
  volume  = {24},
  number  = {10},
  pages   = {1522--1532},
  month   = {oct},
  doi     = {10.1038/s41563-025-02272-0},
  issn    = {1476-4660},
  url     = {https://doi.org/10.1038/s41563-025-02272-0},
  abstract = {The Materials Project was launched formally in 2011 to drive materials discovery forwards through high-throughput computation and open data. More than a decade later, the Materials Project has become an indispensable tool used by more than 600,000 materials researchers around the world. This Perspective describes how the Materials Project, as a data platform and a software ecosystem, has helped to shape research in data-driven materials science. We cover how sustainable software and computational methods have accelerated materials design while becoming more open source and collaborative in nature. Next, we present cases where the Materials Project was used to understand and discover functional materials. We then describe our efforts to meet the needs of an expanding user base, through technical infrastructure updates ranging from data architecture and cloud resources to interactive web applications. Finally, we discuss opportunities to better aid the research community, with the vision that more accessible and easy-to-understand materials data will result in democratized materials knowledge and an increasingly collaborative community.}
}

3D Crystal Structure Rendering

Loading 3D structure…

Style: Ball & Stick
Raw CIF Data
# generated using pymatgen
data_CuPbO2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.68878807
_cell_length_b   5.68878807
_cell_length_c   5.68878807
_cell_angle_alpha   129.14206198
_cell_angle_beta   123.19661832
_cell_angle_gamma   79.70250587
_symmetry_Int_Tables_number   1
_chemical_formula_structural   CuPbO2
_chemical_formula_sum   'Cu2 Pb2 O4'
_cell_volume   115.46708780
_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
  Cu  Cu0  1  0.00000000  0.00000000  0.00000000  1.0
  Cu  Cu1  1  0.50000000  0.50000000  0.00000000  1.0
  Pb  Pb2  1  0.25000000  0.76179700  0.51179700  1.0
  Pb  Pb3  1  0.75000000  0.23820300  0.48820300  1.0
  O  O4  1  0.66618900  0.66618900  0.50000000  1.0
  O  O5  1  0.33381100  0.33381100  0.50000000  1.0
  O  O6  1  0.16618900  0.66618900  0.00000000  1.0
  O  O7  1  0.83381100  0.33381100  0.00000000  1.0
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