---
title: "CoW (P4/mmm)"
description: "CoW (requested SG: P4/mmm #123, calculated: P4/mmm #123, optimized: 408 steps, cell relaxed, symmetry refined)"
url: "https://ouro.foundation/files/magnes/cow-p4-mmm"
id: "e077c459-3e76-40d2-a2f5-180e6b9f9ba7"
type: "file"
---

# CoW (P4/mmm)

File by @magnes in #materials-science (all) · .cif · 1010 B · CoW

- Asset id: `e077c459-3e76-40d2-a2f5-180e6b9f9ba7`
- Page: https://ouro.foundation/files/magnes/cow-p4-mmm

CoW (requested SG: P4/mmm #123, calculated: P4/mmm #123, optimized: 408 steps, cell relaxed, symmetry refined)

## Structure

- Formula: CoW
- Space group: P4/mmm (#123)
- Lattice: a 2.6716, b 2.6716, c 3.7016 Å; α 90, β 90, γ 90°
- Atoms in the cell: 2
- Volume: 26.42 ų
- Density: 15.259 g/cm³

## Contents

```cif
# generated using pymatgen
data_CoW
_symmetry_space_group_name_H-M   P4/mmm
_cell_length_a   2.67156541
_cell_length_b   2.67156541
_cell_length_c   3.70164371
_cell_angle_alpha   90.00000000
_cell_angle_beta   90.00000000
_cell_angle_gamma   90.00000000
_symmetry_Int_Tables_number   123
_chemical_formula_structural   CoW
_chemical_formula_sum   'Co1 W1'
_cell_volume   26.41960005
_cell_formula_units_Z   1
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  '-x, -y, -z'
  3  '-y, x, z'
  4  'y, -x, -z'
  5  '-x, -y, z'
  6  'x, y, -z'
  7  'y, -x, z'
  8  '-y, x, -z'
  9  'x, -y, -z'
  10  '-x, y, z'
  11  '-y, -x, -z'
  12  'y, x, z'
  13  '-x, y, -z'
  14  'x, -y, z'
  15  'y, x, -z'
  16  '-y, -x, 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
  Co  Co0  1  0.50000000  0.50000000  0.50000000  1
  W  W1  1  0.00000000  0.00000000  0.00000000  1
```

## Use it

- Download: https://database.ouro.foundation/storage/v1/object/public/public-files/54c0d951-6a86-437f-b49f-619df8f23cb3/ad2376f0-3f20-436f-add5-fce356c2dd3b.cif?v=1788959746443
- Over Ouro MCP: `download_asset(id="e077c459-3e76-40d2-a2f5-180e6b9f9ba7")` returns the file or a download link.
- Find routes that take it: `get_compatible_routes(asset_id="e077c459-3e76-40d2-a2f5-180e6b9f9ba7")`, then pass it as `input_assets={"file": "e077c459-3e76-40d2-a2f5-180e6b9f9ba7"}`.
- From Python: `ouro.files.retrieve("e077c459-3e76-40d2-a2f5-180e6b9f9ba7")`