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CrN4Cl(O2F)2

High-Entropy Materials HEA

MP-ID: mp-1191764 · Space group: I4_1md (#109)

Basic Information

Formula
CrN4Cl(O2F)2
MP-ID
mp-1191764
Elements
5
Sites
24
Density
1.6712
g/cm³
Volume
487.82
ų
Cell a
10.1904
Å
Cell b
10.1904
Å
Cell c
10.1904
Å
α Angle
136.91
°
β Angle
136.91
°
γ Angle
62.58
°
Space Group
I4_1md
Point Group
4mm
Crystal System
Tetragonal
Bravais Lattice
Tetragonal I
Stability
No
Packing Fraction
0.7400

X-ray Diffraction

Diffraction Pattern
X-axis: 2θ (°); Y-axis: relative intensity; CuKa ; λ=1.5406 Å
Diffraction Peaks (Top 24)
2θd (Å)Ihkl
12.87 6.8765 4.7 (1,0,0)
19.35 4.5873 3.8 (2,1,-1)
19.63 4.5227 100.0 (1,1,0)
20.40 4.3542 12.9 (2,2,-2)
23.78 3.7423 26.3 (1,-1,1)
25.91 3.4382 3.7 (2,0,0)
27.13 3.2870 1.7 (1,0,1)
28.26 3.1581 9.9 (3,2,-2)
30.84 2.8998 3.7 (2,1,0)
31.52 2.8381 10.6 (3,1,-1)
35.26 2.5451 1.3 (3,3,-2)
37.26 2.4135 1.6 (3,2,-1)
38.02 2.3668 1.9 (1,-1,2)
39.28 2.2936 2.9 (4,2,-2)
39.31 2.2922 2.3 (3,0,0)
39.45 2.2840 7.4 (2,0,1)
39.87 2.2613 3.4 (2,2,0)
43.52 2.0795 2.8 (3,1,0)
44.68 2.0283 6.0 (4,1,-1)
45.42 1.9968 7.8 (4,3,-2)
48.66 1.8711 4.8 (2,-2,2)
49.70 1.8343 6.0 (4,2,-1)
50.55 1.8055 1.7 (2,-1,2)
51.23 1.7832 1.1 (3,2,0)
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Energy Properties

Formation Energy/atom
0.91747
eV/atom
Energy/atom
-4.78884
eV/atom
Energy above Hull
2.1129
eV/atom
Uncorrected Energy
-4.3163
eV/atom
Volume/atom
20.33
ų
c/a Ratio
1.0000

Electronic Properties

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

Magnetic Properties

Magnetic
Yes
Total Mag. Moment
13.9864
μB
Mag. Ordering
FiM
Mag. Sites
14
Magnetization/Volume
0.028670
μB/ų

Elastic Properties

Elastic data not available

Feature Analysis

Composition Overview

Element Composition (atomic fraction)
Composition Info
Major / Matrix Element
N · 0.333
Element Family
Metalloid-Nonmetal
Solute Fraction
0.667
Interstitial Fraction
0.333

High-Entropy Alloy Features

Composite Radar (normalized)
Element-Class Share
Mix Entropy ΔS/R
1.4452
HEA criterion (>1.0 = high entropy)
Mix Entropy ΔS
12.0153
J/mol·K
Ω Parameter
0.2934
Ω > 1.1 favors solid solution
Atomic Size Mismatch δr
29.594%
δr < 6.6% favors single-phase solid solution
Electronegativity Diff Δχ
0.5712
smaller = more stable mixing
VEC
4.750
valence electron concentration, affects phase stability
Mix Enthalpy ΔH_mix
-10.000
kJ/mol; negative = exothermic mixing
Entropy Norm
0.8979
SS Former
0
Phase Tendency
IM

Related Tasks

Citation & References

Materials Project Page
https://materialsproject.org/materials/mp-1191764
Reference Citation

The crystal structure and related material properties of CrN4Cl(O2F)2 were obtained from the Materials Project database (MP-ID: mp-1191764, 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_CrN4Cl(O2F)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   10.19036291
_cell_length_b   10.19036291
_cell_length_c   10.19036291
_cell_angle_alpha   136.90961244
_cell_angle_beta   136.90961244
_cell_angle_gamma   62.57715123
_symmetry_Int_Tables_number   1
_chemical_formula_structural   CrN4Cl(O2F)2
_chemical_formula_sum   'Cr2 N8 Cl2 O8 F4'
_cell_volume   487.82142911
_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
  Cr  Cr0  1  0.95978500  0.45978500  0.50000000  1.0
  Cr  Cr1  1  0.20978500  0.20978500  0.00000000  1.0
  N  N2  1  0.19917700  0.94537300  0.74619500  1.0
  N  N3  1  0.19917700  0.45298200  0.25380500  1.0
  N  N4  1  0.20298200  0.44917700  0.75380500  1.0
  N  N5  1  0.69537300  0.44917700  0.24619500  1.0
  N  N6  1  0.86593000  0.54175200  0.67582200  1.0
  N  N7  1  0.86593000  0.19010700  0.32417800  1.0
  N  N8  1  0.94010700  0.11593000  0.82417800  1.0
  N  N9  1  0.29175200  0.11593000  0.17582200  1.0
  Cl  Cl10  1  0.42008000  0.92008000  0.50000000  1.0
  Cl  Cl11  1  0.67008000  0.67008000  0.00000000  1.0
  O  O12  1  0.47589600  0.12671200  0.65081600  1.0
  O  O13  1  0.47589600  0.82508000  0.34918400  1.0
  O  O14  1  0.57508000  0.72589600  0.84918400  1.0
  O  O15  1  0.87671200  0.72589600  0.15081600  1.0
  O  O16  1  0.62472800  0.46550800  0.84078000  1.0
  O  O17  1  0.62472800  0.78394800  0.15922000  1.0
  O  O18  1  0.53394800  0.87472800  0.65922000  1.0
  O  O19  1  0.21550800  0.87472800  0.34078000  1.0
  F  F20  1  0.02218600  0.71209000  0.68990400  1.0
  F  F21  1  0.02218600  0.33228200  0.31009600  1.0
  F  F22  1  0.08228200  0.27218600  0.81009600  1.0
  F  F23  1  0.46209000  0.27218600  0.18990400  1.0
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