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Cu9S5

Traditional Materials TRA

MP-ID: mp-684710 · Space group: P-1 (#2)

Basic Information

Formula
Cu9S5
MP-ID
mp-684710
Elements
2
Sites
28
Density
5.8553
g/cm³
Volume
415.32
ų
Cell a
6.7251
Å
Cell b
7.7690
Å
Cell c
8.7034
Å
α Angle
77.14
°
β Angle
75.03
°
γ Angle
73.30
°
Space Group
P-1
Point Group
-1
Crystal System
Triclinic
Bravais Lattice
Triclinic P
Stability
No
Packing Fraction
0.5240

X-ray Diffraction

Diffraction Pattern
X-axis: 2θ (°); Y-axis: relative intensity; CuKa ; λ=1.5406 Å
Diffraction Peaks (Top 24)
2θd (Å)Ihkl
14.77 5.9981 12.5 (0,1,1)
15.79 5.6122 10.5 (1,0,1)
16.14 5.4899 11.5 (1,1,0)
17.36 5.1089 8.4 (0,1,-1)
19.38 4.5800 6.8 (1,0,-1)
20.69 4.2923 8.1 (1,-1,0)
21.41 4.1496 7.0 (0,0,2)
22.64 3.9280 5.6 (1,1,2)
24.23 3.6725 4.3 (0,2,0)
24.26 3.6692 4.4 (1,2,1)
26.98 3.3051 3.5 (2,1,1)
28.10 3.1754 20.4 (0,2,-1)
28.10 3.1752 20.1 (1,0,-2)
28.13 3.1726 19.7 (1,2,2)
28.13 3.1724 19.8 (2,0,1)
28.33 3.1502 3.2 (2,0,0)
29.20 3.0579 2.6 (1,-1,2)
29.79 2.9990 2.8 (0,2,2)
29.80 2.9983 2.8 (1,2,-1)
30.67 2.9149 3.1 (1,1,-2)
30.68 2.9141 3.1 (1,-1,-2)
31.89 2.8061 3.3 (2,0,2)
32.53 2.7527 97.6 (1,0,3)
32.58 2.7483 97.5 (1,-2,-1)
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Energy Properties

Formation Energy/atom
-0.17755
eV/atom
Energy/atom
-10.01979
eV/atom
Energy above Hull
0.0497
eV/atom
Uncorrected Energy
-4.2102
eV/atom
Volume/atom
14.83
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
0.0002
μB
Mag. Ordering
NM
Mag. Sites
0
Magnetization/Volume
0.000000
μB/ų

Elastic Properties

Elastic data not available

Feature Analysis

Composition Overview

Element Composition (atomic fraction)
Composition Info
Major / Matrix Element
Cu · 0.643
Element Family
N/A
Solute Fraction
0.357
Interstitial Fraction
0.000

Traditional Material Features

ROM Blended-Feature Radar
Rating & Classification
Tier
A
Score
0.741
Family
Cu-based Alloy
Matrix Element
Cu · 0.643

Related Tasks

Related computation task IDs (2)

Citation & References

Materials Project Page
https://materialsproject.org/materials/mp-684710
Reference Citation

The crystal structure and related material properties of Cu9S5 were obtained from the Materials Project database (MP-ID: mp-684710, 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_Cu9S5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.72508400
_cell_length_b   7.76895151
_cell_length_c   8.70338600
_cell_angle_alpha   77.14160338
_cell_angle_beta   75.02882752
_cell_angle_gamma   73.29919110
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Cu9S5
_chemical_formula_sum   'Cu18 S10'
_cell_volume   415.31994909
_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  0.04636300  0.45440800  0.15008900  1.0
  Cu  Cu1  1  0.95383000  0.05204600  0.84988900  1.0
  Cu  Cu2  1  0.04617000  0.94795400  0.15011100  1.0
  Cu  Cu3  1  0.15148900  0.34935600  0.45349800  1.0
  Cu  Cu4  1  0.95363700  0.54559200  0.84991100  1.0
  Cu  Cu5  1  0.44574700  0.55484100  0.34757900  1.0
  Cu  Cu6  1  0.34769900  0.65194900  0.04360700  1.0
  Cu  Cu7  1  0.25629200  0.74938300  0.74465800  1.0
  Cu  Cu8  1  0.15085900  0.84894000  0.44879400  1.0
  Cu  Cu9  1  0.65047800  0.84888900  0.95419400  1.0
  Cu  Cu10  1  0.54600100  0.95345900  0.65080200  1.0
  Cu  Cu11  1  0.45399900  0.04654100  0.34919800  1.0
  Cu  Cu12  1  0.84914100  0.15106000  0.55120600  1.0
  Cu  Cu13  1  0.34952200  0.15111100  0.04580600  1.0
  Cu  Cu14  1  0.65230100  0.34805100  0.95639300  1.0
  Cu  Cu15  1  0.55425300  0.44515900  0.65242100  1.0
  Cu  Cu16  1  0.84851100  0.65064400  0.54650200  1.0
  Cu  Cu17  1  0.74370800  0.25061700  0.25534200  1.0
  S  S18  1  0.89874300  0.84999100  0.70063100  1.0
  S  S19  1  0.90256700  0.34968000  0.69954500  1.0
  S  S20  1  0.09743300  0.65032000  0.30045500  1.0
  S  S21  1  0.29945600  0.95302200  0.89959000  1.0
  S  S22  1  0.10125700  0.15000900  0.29936900  1.0
  S  S23  1  0.49764600  0.25012900  0.50168800  1.0
  S  S24  1  0.29865100  0.44810100  0.89902000  1.0
  S  S25  1  0.70134900  0.55189900  0.10098000  1.0
  S  S26  1  0.50235400  0.74987100  0.49831200  1.0
  S  S27  1  0.70054400  0.04697800  0.10041000  1.0
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