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NaPrO2

Elasticity Data ELA

MP-ID: mp-8470 · Space group: I4_1/amd (#141)

Basic Information

Formula
NaPrO2
MP-ID
mp-8470
Elements
3
Sites
8
Density
5.1334
g/cm³
Volume
126.74
ų
Cell a
4.7700
Å
Cell b
4.7700
Å
Cell c
6.5117
Å
α Angle
111.49
°
β Angle
111.49
°
γ Angle
90.00
°
Space Group
I4_1/amd
Point Group
4/mmm
Crystal System
Tetragonal
Bravais Lattice
Tetragonal I
Stability
Yes
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
20.25 4.3849 33.3 (0,1,-1)
20.25 4.3849 100.0 (1,0,-1)
30.51 2.9302 29.8 (1,0,-2)
31.00 2.8852 54.4 (1,1,-2)
31.00 2.8852 54.4 (1,-1,-1)
32.14 2.7851 49.5 (0,0,2)
37.72 2.3850 70.0 (2,0,-1)
43.18 2.0951 37.0 (2,1,-1)
44.90 2.0187 22.2 (1,0,-3)
49.26 1.8497 4.3 (1,-2,2)
49.26 1.8497 12.8 (2,1,-3)
50.37 1.8115 26.6 (2,0,-3)
50.37 1.8115 26.6 (2,0,1)
54.40 1.6864 22.8 (2,-2,0)
56.58 1.6266 19.6 (1,1,-4)
56.58 1.6266 6.5 (1,1,2)
58.65 1.5740 1.9 (0,3,-2)
58.65 1.5740 5.6 (3,0,-2)
60.04 1.5408 9.0 (2,1,-4)
60.04 1.5408 9.0 (2,-1,2)
61.42 1.5097 3.7 (1,0,-4)
63.66 1.4616 2.1 (3,0,-3)
63.66 1.4616 2.1 (3,0,0)
63.94 1.4560 22.3 (3,-1,-2)
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Energy Properties

Formation Energy/atom
-2.95014
eV/atom
Energy/atom
-6.95842
eV/atom
Energy above Hull
0.0000
eV/atom
Uncorrected Energy
-14.0898
eV/atom
Volume/atom
15.84
ų
c/a Ratio
1.3651

Electronic Properties

Metallic
Non-metal
Band Gap
3.197
eV
Direct Gap
No
CBM
N/A
eV

Magnetic Properties

Magnetic
Yes
Total Mag. Moment
0.0000
μB
Mag. Ordering
Unknown
Mag. Sites
0
Magnetization/Volume
0.000000
μB/ų

Elastic Properties

KVRH
84.293
GPa
GVRH
42.149
GPa
Young's Modulus E
108.382
GPa
Poisson Ratio ν
0.286
Pugh Ratio K/G
2.000
Vickers Hardness Est.
4.932
GPa
Ductility
Brittle
Anisotropy
1.009
Lame λ
56.194
GPa

Feature Analysis

Composition Overview

Element Composition (atomic fraction)
Composition Info
Major / Matrix Element
O · 0.500
Element Family
Metalloid-Nonmetal
Solute Fraction
0.500
Interstitial Fraction
0.000

Elasticity Features

Elastic Modulus Comparison (GPa)
Elastic Features
Elastic Anisotropy AU
1.0090
Homogeneous Poisson ν
0.2860
Debye Temperature
773.3
K
Sound Velocity
3,194.9
m/s
Homogeneity
0.2860

Related Tasks

Citation & References

Materials Project Page
https://materialsproject.org/materials/mp-8470
Reference Citation

The crystal structure and related material properties of NaPrO2 were obtained from the Materials Project database (MP-ID: mp-8470, 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_NaPrO2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.76997691
_cell_length_b   4.76997704
_cell_length_c   6.51172703
_cell_angle_alpha   111.48518420
_cell_angle_beta   111.48518179
_cell_angle_gamma   90.00000505
_symmetry_Int_Tables_number   1
_chemical_formula_structural   NaPrO2
_chemical_formula_sum   'Na2 Pr2 O4'
_cell_volume   126.73517071
_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
  Na  Na0  1  0.87500000  0.12500000  0.75000000  1.0
  Na  Na1  1  0.12500000  0.87500000  0.25000000  1.0
  Pr  Pr2  1  0.62500000  0.37500000  0.25000000  1.0
  Pr  Pr3  1  0.37500000  0.62500000  0.75000000  1.0
  O  O4  1  0.15663611  0.40663611  0.31327223  1.0
  O  O5  1  0.40663611  0.15663611  0.81327223  1.0
  O  O6  1  0.59336389  0.84336389  0.18672777  1.0
  O  O7  1  0.84336389  0.59336389  0.68672777  1.0
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