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Mo6PbS8

High-Entropy Materials HEA Traditional Materials TRA

MP-ID: mp-1104554 · Space group: P-1 (#2)

Basic Information

Formula
Mo6PbS8
MP-ID
mp-1104554
Elements
3
Sites
15
Density
5.8991
g/cm³
Volume
292.57
ų
Cell a
6.5661
Å
Cell b
6.6606
Å
Cell c
6.6915
Å
α Angle
90.64
°
β Angle
90.29
°
γ Angle
91.06
°
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
13.23 6.6909 49.2 (0,0,1)
13.30 6.6590 48.9 (0,1,0)
13.49 6.5649 56.6 (1,0,0)
18.69 4.7467 95.9 (0,1,-1)
18.80 4.7190 99.3 (1,-1,0)
18.89 4.6984 85.8 (1,0,-1)
18.91 4.6935 83.9 (0,1,1)
18.99 4.6737 100.0 (1,0,1)
19.16 4.6322 86.3 (1,1,0)
23.02 3.8640 88.3 (1,-1,1)
23.11 3.8488 43.7 (1,-1,-1)
23.23 3.8293 42.1 (1,1,-1)
23.48 3.7881 39.5 (1,1,1)
26.65 3.3455 7.6 (0,0,2)
26.78 3.3295 7.6 (0,2,0)
27.17 3.2824 6.3 (2,0,0)
29.75 3.0030 18.0 (0,1,-2)
29.84 2.9943 17.2 (0,2,-1)
29.86 2.9919 17.1 (1,-2,0)
29.91 2.9871 19.2 (1,0,-2)
30.03 2.9760 78.2 (0,1,2)
30.04 2.9744 16.9 (1,0,2)
30.11 2.9675 19.7 (0,2,1)
30.13 2.9661 17.4 (2,-1,0)
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Energy Properties

Formation Energy/atom
-0.92825
eV/atom
Energy/atom
-7.72063
eV/atom
Energy above Hull
0.0338
eV/atom
Uncorrected Energy
-7.4524
eV/atom
Volume/atom
19.50
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
0.0001
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
S · 0.533
Element Family
Metalloid-Nonmetal
Solute Fraction
0.467
Interstitial Fraction
0.000

High-Entropy Alloy Features

Composite Radar (normalized)
Element-Class Share
Mix Entropy ΔS/R
0.8823
HEA criterion (>1.0 = high entropy)
Mix Entropy ΔS
7.3355
J/mol·K
Ω Parameter
3.8004
Ω > 1.1 favors solid solution
Atomic Size Mismatch δr
18.213%
δr < 6.6% favors single-phase solid solution
Electronegativity Diff Δχ
0.2016
smaller = more stable mixing
VEC
5.867
valence electron concentration, affects phase stability
Mix Enthalpy ΔH_mix
2.713
kJ/mol; negative = exothermic mixing
Entropy Norm
0.8031
SS Former
0
Phase Tendency
IM

Traditional Material Features

ROM Blended-Feature Radar
Rating & Classification
Tier
B
Score
0.550
Family
S-rich Multi-Component
Matrix Element
S · 0.533

Related Tasks

Citation & References

Materials Project Page
https://materialsproject.org/materials/mp-1104554
Reference Citation

The crystal structure and related material properties of Mo6PbS8 were obtained from the Materials Project database (MP-ID: mp-1104554, 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_Mo6PbS8
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.56606500
_cell_length_b   6.66054979
_cell_length_c   6.69145192
_cell_angle_alpha   90.64104087
_cell_angle_beta   90.29033962
_cell_angle_gamma   91.06091711
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Mo6PbS8
_chemical_formula_sum   'Mo6 Pb1 S8'
_cell_volume   292.56875027
_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
  Mo  Mo0  1  0.56262600  0.58070800  0.22742500  1.0
  Mo  Mo1  1  0.43737400  0.41929200  0.77257500  1.0
  Mo  Mo2  1  0.23573200  0.43886100  0.41994100  1.0
  Mo  Mo3  1  0.76426800  0.56113900  0.58005900  1.0
  Mo  Mo4  1  0.41784100  0.77193100  0.56160200  1.0
  Mo  Mo5  1  0.58215900  0.22806900  0.43839800  1.0
  Pb  Pb6  1  0.00000000  0.00000000  0.00000000  1.0
  S  S7  1  0.37985900  0.26165900  0.12684700  1.0
  S  S8  1  0.62014100  0.73834100  0.87315300  1.0
  S  S9  1  0.24918100  0.75743000  0.24503100  1.0
  S  S10  1  0.75081900  0.24257000  0.75496900  1.0
  S  S11  1  0.73563500  0.87284500  0.37651600  1.0
  S  S12  1  0.26436500  0.12715500  0.62348400  1.0
  S  S13  1  0.12792100  0.62101900  0.73847900  1.0
  S  S14  1  0.87207900  0.37898100  0.26152100  1.0
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