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NiP3NO9

High-Entropy Materials HEA

MP-ID: mp-720476 · Space group: R32 (#155)

Basic Information

Formula
NiP3NO9
MP-ID
mp-720476
Elements
4
Sites
14
Density
2.3323
g/cm³
Volume
220.44
ų
Cell a
6.3625
Å
Cell b
6.3625
Å
Cell c
6.3625
Å
α Angle
105.93
°
β Angle
105.93
°
γ Angle
105.93
°
Space Group
R32
Point Group
32
Crystal System
Trigonal
Bravais Lattice
Trigonal R
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
15.65 5.6631 100.0 (1,0,0)
17.46 5.0791 57.5 (1,0,-1)
23.53 3.7811 6.7 (1,1,-1)
29.45 3.0330 21.8 (2,0,-1)
30.48 2.9324 13.6 (2,-1,-1)
31.60 2.8315 44.0 (2,0,0)
35.34 2.5395 7.6 (2,0,-2)
36.33 2.4732 6.0 (2,1,-1)
36.42 2.4668 2.0 (1,1,1)
38.86 2.3172 6.2 (2,1,-2)
40.66 2.2189 2.6 (2,1,0)
42.90 2.1082 2.1 (3,-1,-1)
44.48 2.0369 14.5 (3,0,-1)
46.65 1.9471 2.5 (3,0,-2)
48.21 1.8877 10.4 (2,2,-1)
51.58 1.7718 1.6 (3,1,-2)
51.58 1.7718 3.3 (3,-2,1)
53.75 1.7054 7.3 (2,2,0)
54.17 1.6930 5.9 (3,0,-3)
56.75 1.6221 3.4 (3,1,-3)
56.96 1.6167 2.1 (3,1,0)
58.05 1.5890 6.4 (4,-1,-1)
59.86 1.5452 1.2 (2,1,-4)
59.86 1.5452 2.5 (4,-1,-2)
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Energy Properties

Formation Energy/atom
-1.74383
eV/atom
Energy/atom
-7.09358
eV/atom
Energy above Hull
0.4442
eV/atom
Uncorrected Energy
-6.4704
eV/atom
Volume/atom
15.75
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
4.0015
μB
Mag. Ordering
FM
Mag. Sites
2
Magnetization/Volume
0.018150
μB/ų

Elastic Properties

Elastic data not available

Feature Analysis

Composition Overview

Element Composition (atomic fraction)
Composition Info
Major / Matrix Element
O · 0.643
Element Family
Metalloid-Nonmetal
Solute Fraction
0.357
Interstitial Fraction
0.286

High-Entropy Alloy Features

Composite Radar (normalized)
Element-Class Share
Mix Entropy ΔS/R
0.9911
HEA criterion (>1.0 = high entropy)
Mix Entropy ΔS
8.2403
J/mol·K
Ω Parameter
0.7359
Ω > 1.1 favors solid solution
Atomic Size Mismatch δr
31.453%
δr < 6.6% favors single-phase solid solution
Electronegativity Diff Δχ
0.5906
smaller = more stable mixing
VEC
4.714
valence electron concentration, affects phase stability
Mix Enthalpy ΔH_mix
-2.589
kJ/mol; negative = exothermic mixing
Entropy Norm
0.7150
SS Former
0
Phase Tendency
IM

Related Tasks

Related computation task IDs (2)

Citation & References

Materials Project Page
https://materialsproject.org/materials/mp-720476
Reference Citation

The crystal structure and related material properties of NiP3NO9 were obtained from the Materials Project database (MP-ID: mp-720476, 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_NiP3NO9
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.36246398
_cell_length_b   6.36246398
_cell_length_c   6.36246400
_cell_angle_alpha   105.93399027
_cell_angle_beta   105.93399027
_cell_angle_gamma   105.93398614
_symmetry_Int_Tables_number   1
_chemical_formula_structural   NiP3NO9
_chemical_formula_sum   'Ni1 P3 N1 O9'
_cell_volume   220.43758543
_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
  Ni  Ni0  1  0.00000000  0.00000000  0.00000000  1.0
  P  P1  1  0.07149100  0.92850900  0.50000000  1.0
  P  P2  1  0.50000000  0.07149100  0.92850900  1.0
  P  P3  1  0.92850900  0.50000000  0.07149100  1.0
  N  N4  1  0.50000000  0.50000000  0.50000000  1.0
  O  O5  1  0.06784300  0.34534200  0.05352900  1.0
  O  O6  1  0.05352900  0.06784300  0.34534200  1.0
  O  O7  1  0.34534200  0.05352900  0.06784300  1.0
  O  O8  1  0.65465800  0.93215700  0.94647100  1.0
  O  O9  1  0.93215700  0.94647100  0.65465800  1.0
  O  O10  1  0.94647100  0.65465800  0.93215700  1.0
  O  O11  1  0.65291100  0.34708900  0.00000000  1.0
  O  O12  1  0.00000000  0.65291100  0.34708900  1.0
  O  O13  1  0.34708900  0.00000000  0.65291100  1.0
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