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Zn2Cu2CNCl7

High-Entropy Materials HEA

MP-ID: mp-731109 · Space group: Pc (#7)

Basic Information

Formula
Zn2Cu2CNCl7
MP-ID
mp-731109
Elements
5
Sites
26
Density
2.6964
g/cm³
Volume
655.37
ų
Cell a
6.6781
Å
Cell b
6.3141
Å
Cell c
16.7209
Å
α Angle
68.36
°
β Angle
90.00
°
γ Angle
90.00
°
Space Group
Pc
Point Group
m
Crystal System
Monoclinic
Bravais Lattice
Monoclinic 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
11.39 7.7713 100.0 (0,0,2)
14.44 6.1357 65.6 (1,0,1)
15.10 5.8692 32.4 (0,1,0)
15.20 5.8302 38.2 (0,1,2)
17.51 5.0649 16.9 (1,0,2)
19.35 4.5879 2.4 (1,1,1)
20.14 4.4085 7.6 (1,1,0)
20.22 4.3920 10.0 (1,1,2)
21.71 4.0934 14.4 (1,0,3)
22.09 4.0240 12.1 (0,1,-2)
22.30 3.9865 9.5 (0,1,4)
22.44 3.9629 39.9 (1,1,-1)
22.57 3.9389 44.1 (1,1,3)
25.85 3.4466 3.6 (1,1,-2)
26.03 3.4230 4.1 (1,1,4)
26.54 3.3585 81.1 (1,0,4)
26.70 3.3390 67.7 (2,0,0)
27.32 3.2646 4.6 (2,0,1)
28.27 3.1569 90.7 (0,2,2)
29.11 3.0679 8.7 (2,0,2)
30.03 2.9753 30.7 (1,1,-3)
30.25 2.9550 29.0 (1,1,5)
30.28 2.9517 23.9 (2,1,1)
30.46 2.9346 7.4 (0,2,0)
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Energy Properties

Formation Energy/atom
-0.69460
eV/atom
Energy/atom
-3.86590
eV/atom
Energy above Hull
0.3413
eV/atom
Uncorrected Energy
-3.5353
eV/atom
Volume/atom
25.21
ų
c/a Ratio
-

Electronic Properties

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

Magnetic Properties

Magnetic
Yes
Total Mag. Moment
4.0233
μB
Mag. Ordering
FM
Mag. Sites
6
Magnetization/Volume
0.006140
μB/ų

Elastic Properties

Elastic data not available

Feature Analysis

Composition Overview

Element Composition (atomic fraction)
Composition Info
Major / Matrix Element
Cl · 0.538
Element Family
Metalloid-Nonmetal
Solute Fraction
0.462
Interstitial Fraction
0.154

High-Entropy Alloy Features

Composite Radar (normalized)
Element-Class Share
Mix Entropy ΔS/R
1.3039
HEA criterion (>1.0 = high entropy)
Mix Entropy ΔS
10.8404
J/mol·K
Ω Parameter
1.0784
Ω > 1.1 favors solid solution
Atomic Size Mismatch δr
17.752%
δr < 6.6% favors single-phase solid solution
Electronegativity Diff Δχ
0.6262
smaller = more stable mixing
VEC
6.923
valence electron concentration, affects phase stability
Mix Enthalpy ΔH_mix
-7.105
kJ/mol; negative = exothermic mixing
Entropy Norm
0.8101
SS Former
0
Phase Tendency
IM

Related Tasks

Related computation task IDs (3)

Citation & References

Materials Project Page
https://materialsproject.org/materials/mp-731109
Reference Citation

The crystal structure and related material properties of Zn2Cu2CNCl7 were obtained from the Materials Project database (MP-ID: mp-731109, 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_Zn2Cu2CNCl7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.67807400
_cell_length_b   6.31410800
_cell_length_c   16.72086604
_cell_angle_alpha   68.36202550
_cell_angle_beta   90.00000000
_cell_angle_gamma   90.00000000
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Zn2Cu2CNCl7
_chemical_formula_sum   'Zn4 Cu4 C2 N2 Cl14'
_cell_volume   655.36988979
_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
  Zn  Zn0  1  0.69231900  0.86810400  0.08606800  1.0
  Zn  Zn1  1  0.30768100  0.86810400  0.58606800  1.0
  Zn  Zn2  1  0.83777800  0.22464500  0.21714800  1.0
  Zn  Zn3  1  0.16222200  0.22464500  0.71714800  1.0
  Cu  Cu4  1  0.30665600  0.36513000  0.08698200  1.0
  Cu  Cu5  1  0.69334400  0.36513000  0.58698200  1.0
  Cu  Cu6  1  0.17879400  0.97076700  0.95819100  1.0
  Cu  Cu7  1  0.82120600  0.97076700  0.45819100  1.0
  C  C8  1  0.68753600  0.61794600  0.87618800  1.0
  C  C9  1  0.31246400  0.61794600  0.37618800  1.0
  N  N10  1  0.66073600  0.73833700  0.80426600  1.0
  N  N11  1  0.33926400  0.73833700  0.30426600  1.0
  Cl  Cl12  1  0.20531400  0.61745300  0.96406100  1.0
  Cl  Cl13  1  0.79468600  0.61745300  0.46406100  1.0
  Cl  Cl14  1  0.84996700  0.06517400  0.96224300  1.0
  Cl  Cl15  1  0.15003300  0.06517400  0.46224300  1.0
  Cl  Cl16  1  0.35815200  0.00863900  0.07566100  1.0
  Cl  Cl17  1  0.64184800  0.00863900  0.57566100  1.0
  Cl  Cl18  1  0.31877500  0.22118900  0.83714600  1.0
  Cl  Cl19  1  0.68122500  0.22118900  0.33714600  1.0
  Cl  Cl20  1  0.82208000  0.87002500  0.21008900  1.0
  Cl  Cl21  1  0.17792000  0.87002500  0.71008900  1.0
  Cl  Cl22  1  0.66059800  0.48438900  0.09804900  1.0
  Cl  Cl23  1  0.33940200  0.48438900  0.59804900  1.0
  Cl  Cl24  1  0.15844600  0.34140000  0.20927800  1.0
  Cl  Cl25  1  0.84155400  0.34140000  0.70927800  1.0
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