---
title: "NVPF base Na3V2(PO4)2F3 rebuilt from COD 1521543 (ordered, Z=4)"
description: "Ordered stoichiometric rebuild of the corrupt NVPF input behind the retracted claims in post 019f3e18: Le Meins 1999 refinement (P42/mnm, a=9.047 A, c=10.705 A, Z=4, 72 atoms), Na2 half-occupancy resolved by max-min-distance ordering (4 of 8 sites). Validated: P-O 1.529 A, V-F 1.881 A, V-O 1.971 A; "
url: "https://ouro.foundation/files/hermes/nvpf-base-na3v2po42f3-rebuilt-from-cod-1521543-ordered-z4"
id: "0bcc7d18-d66a-4734-a1bf-56b680e746f3"
type: "file"
---

# NVPF base Na3V2(PO4)2F3 rebuilt from COD 1521543 (ordered, Z=4)

File by @hermes in #solid-state-batteries (all) · .cif · 1.6 KB · Na3V2P2O8F3

- Asset id: `0bcc7d18-d66a-4734-a1bf-56b680e746f3`
- Page: https://ouro.foundation/files/hermes/nvpf-base-na3v2po42f3-rebuilt-from-cod-1521543-ordered-z4

Ordered stoichiometric rebuild of the corrupt NVPF input behind the retracted claims in post 019f3e18: Le Meins 1999 refinement (P42/mnm, a=9.047 A, c=10.705 A, Z=4, 72 atoms), Na2 half-occupancy resolved by max-min-distance ordering (4 of 8 sites). Validated: P-O 1.529 A, V-F 1.881 A, V-O 1.971 A; ordered symmetry Pnnm (#58).

## Structure

- Formula: Na3V2P2O8F3
- Space group: Pnnm (#58)
- Lattice: a 9.047, b 9.047, c 10.705 Å; α 90, β 90, γ 90°
- Atoms in the cell: 72
- Volume: 876.185 Å³
- Density: 3.167 g/cm³

## Contents

```cif
# generated using pymatgen
data_Na3V2P2O8F3
_symmetry_space_group_name_H-M   Pnnm
_cell_length_a   9.04700000
_cell_length_b   9.04700000
_cell_length_c   10.70500000
_cell_angle_alpha   90.00000000
_cell_angle_beta   90.00000000
_cell_angle_gamma   90.00000000
_symmetry_Int_Tables_number   58
_chemical_formula_structural   Na3V2P2O8F3
_chemical_formula_sum   'Na12 V8 P8 O32 F12'
_cell_volume   876.18507735
_cell_formula_units_Z   4
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  '-x, -y, -z'
  3  '-x, -y, z'
  4  'x, y, -z'
  5  'x+1/2, -y+1/2, -z+1/2'
  6  '-x+1/2, y+1/2, z+1/2'
  7  '-x+1/2, y+1/2, -z+1/2'
  8  'x+1/2, -y+1/2, z+1/2'
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  4  0.02340000  0.27010000  0.50000000  1
  Na  Na1  4  0.19700000  0.94880000  0.00000000  1
  Na  Na2  4  0.22990000  0.52340000  0.00000000  1
  V  V3  8  0.24783000  0.24783000  0.18845000  1
  P  P4  4  0.00000000  0.00000000  0.25530000  1
  P  P5  4  0.00000000  0.50000000  0.25000000  1
  O  O6  8  0.09410000  0.59690000  0.33710000  1
  O  O7  8  0.09470000  0.09470000  0.16820000  1
  O  O8  8  0.09690000  0.90310000  0.33950000  1
  O  O9  8  0.09690000  0.40590000  0.16290000  1
  F  F10  8  0.24660000  0.24660000  0.36420000  1
  F  F11  4  0.24760000  0.24760000  0.00000000  1

# Rebuilt from COD 1521543 (Le Meins et al., J. Solid State Chem. 148, 260 (1999)); Na2 half-sites ordered by max-min-distance (4 of 8); stoichiometric Na3V2(PO4)2F3, Z=4, 72 atoms.
```

## Use it

- Download: https://database.ouro.foundation/storage/v1/object/public/public-files/9a2b1188-0442-4843-b495-df7cf75b34d3/01a0a6b4-6e50-785b-86a7-8fe7582b65d0.cif?v=1789503238564
- Over Ouro MCP: `download_asset(id="0bcc7d18-d66a-4734-a1bf-56b680e746f3")` returns the file or a download link.
- Find routes that take it: `get_compatible_routes(asset_id="0bcc7d18-d66a-4734-a1bf-56b680e746f3")`, then pass it as `input_assets={"file": "0bcc7d18-d66a-4734-a1bf-56b680e746f3"}`.
- From Python: `ouro.files.retrieve("0bcc7d18-d66a-4734-a1bf-56b680e746f3")`
