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Li2V5CoO12

High-Entropy Materials HEA

MP-ID: mp-755221 · Space group: C2 (#5)

Basic Information

Formula
Li2V5CoO12
MP-ID
mp-755221
Elements
4
Sites
20
Density
3.4631
g/cm³
Volume
249.10
ų
Cell a
6.9178
Å
Cell b
6.9178
Å
Cell c
5.7005
Å
α Angle
73.32
°
β Angle
106.68
°
γ Angle
99.98
°
Space Group
C2
Point Group
2
Crystal System
Monoclinic
Bravais Lattice
Monoclinic C
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
13.43 6.5942 15.0 (1,0,0)
13.43 6.5942 15.0 (0,1,0)
18.06 4.9125 7.5 (1,-1,0)
18.69 4.7477 21.0 (1,0,-1)
19.96 4.4477 22.7 (1,1,0)
24.08 3.6954 13.6 (1,0,1)
26.19 3.4031 15.3 (1,1,1)
27.99 3.1883 4.4 (2,-1,-1)
28.06 3.1794 100.0 (2,0,-1)
29.05 3.0733 26.5 (2,-1,0)
29.05 3.0733 26.5 (1,-2,0)
31.52 2.8387 2.7 (2,1,0)
31.88 2.8071 2.7 (1,-1,-2)
33.92 2.6426 41.6 (0,0,2)
34.20 2.6219 4.9 (2,1,-1)
35.53 2.5266 21.6 (2,0,1)
36.21 2.4808 3.9 (2,-1,-2)
36.58 2.4562 1.1 (2,-2,0)
37.55 2.3951 2.6 (2,1,1)
37.90 2.3738 1.5 (2,0,-2)
38.73 2.3252 2.0 (2,-1,1)
39.65 2.2733 4.6 (2,-2,-2)
39.81 2.2642 11.9 (1,0,2)
40.28 2.2390 4.3 (3,0,-1)
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Energy Properties

Formation Energy/atom
-2.28814
eV/atom
Energy/atom
-8.07545
eV/atom
Energy above Hull
0.1663
eV/atom
Uncorrected Energy
-7.1564
eV/atom
Volume/atom
12.46
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
8.0000
μB
Mag. Ordering
FM
Mag. Sites
6
Magnetization/Volume
0.032120
μB/ų

Elastic Properties

Elastic data not available

Feature Analysis

Composition Overview

Element Composition (atomic fraction)
Composition Info
Major / Matrix Element
O · 0.600
Element Family
Metalloid-Nonmetal
Solute Fraction
0.400
Interstitial Fraction
0.000

High-Entropy Alloy Features

Composite Radar (normalized)
Element-Class Share
Mix Entropy ΔS/R
1.0331
HEA criterion (>1.0 = high entropy)
Mix Entropy ΔS
8.5893
J/mol·K
Ω Parameter
1.9667
Ω > 1.1 favors solid solution
Atomic Size Mismatch δr
42.138%
δr < 6.6% favors single-phase solid solution
Electronegativity Diff Δχ
0.9710
smaller = more stable mixing
VEC
4.200
valence electron concentration, affects phase stability
Mix Enthalpy ΔH_mix
-3.111
kJ/mol; negative = exothermic mixing
Entropy Norm
0.7452
SS Former
0
Phase Tendency
IM

Related Tasks

Related computation task IDs (2)

Citation & References

Materials Project Page
https://materialsproject.org/materials/mp-755221
Reference Citation

The crystal structure and related material properties of Li2V5CoO12 were obtained from the Materials Project database (MP-ID: mp-755221, 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_Li2V5CoO12
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.91783256
_cell_length_b   6.91783234
_cell_length_c   5.70045618
_cell_angle_alpha   73.32229206
_cell_angle_beta   106.67770449
_cell_angle_gamma   99.97750044
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Li2V5CoO12
_chemical_formula_sum   'Li2 V5 Co1 O12'
_cell_volume   249.10348184
_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
  Li  Li0  1  0.27116100  0.27116100  0.25000000  1.0
  Li  Li1  1  0.74489700  0.74489700  0.75000000  1.0
  V  V2  1  0.92052600  0.92052600  0.25000000  1.0
  V  V3  1  0.19544800  0.61334600  0.75783300  1.0
  V  V4  1  0.38937100  0.81820600  0.24186700  1.0
  V  V5  1  0.61334600  0.19544800  0.74216700  1.0
  V  V6  1  0.81820600  0.38937100  0.25813300  1.0
  Co  Co7  1  0.08871300  0.08871300  0.75000000  1.0
  O  O8  1  0.02244700  0.79818500  0.65015000  1.0
  O  O9  1  0.06486800  0.37977800  0.74326400  1.0
  O  O10  1  0.19249400  0.99696300  0.14822900  1.0
  O  O11  1  0.37350200  0.66883500  0.57781200  1.0
  O  O12  1  0.37977800  0.06486800  0.75673600  1.0
  O  O13  1  0.31610000  0.59543200  0.08050000  1.0
  O  O14  1  0.66883500  0.37350200  0.92218800  1.0
  O  O15  1  0.65454000  0.89518800  0.32006800  1.0
  O  O16  1  0.59543200  0.31610000  0.41950000  1.0
  O  O17  1  0.79818500  0.02244700  0.84985000  1.0
  O  O18  1  0.89518800  0.65454000  0.17993200  1.0
  O  O19  1  0.99696300  0.19249400  0.35177100  1.0
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