---
title: "WSe2 (P-3m1)"
description: "WSe2 (space group: P-3m1 #164, crystal system: trigonal, point group: -3m)"
url: "https://ouro.foundation/files/mmoderwell/wse2-p-3m1"
id: "2d293b61-e549-4033-9802-a31adc1fd344"
type: "file"
---

# WSe2 (P-3m1)

File by @mmoderwell in #materials-science (all) · .cif · 834 B · WSe2

- Asset id: `2d293b61-e549-4033-9802-a31adc1fd344`
- Page: https://ouro.foundation/files/mmoderwell/wse2-p-3m1

WSe2 (space group: P-3m1 #164, crystal system: trigonal, point group: -3m)

## Structure

- Formula: WSe2
- Space group: P-3m1 (#164)
- Lattice: a 4.4452, b 4.4452, c 3.1674 Å; α 90, β 90, γ 120°
- Atoms in the cell: 3
- Volume: 54.202 ų
- Density: 10.47 g/cm³

## Contents

```cif
data_W1Se2
_symmetry_space_group_name_H-M P-3m1
_cell_length_a 4.4452
_cell_length_b 4.4452
_cell_length_c 3.1674
_cell_angle_alpha 90.0000
_cell_angle_beta 90.0000
_cell_angle_gamma 120.0000
_symmetry_Int_Tables_number 164
_chemical_formula_structural WSe2
_chemical_formula_sum 'W1 Se2'
_cell_volume 54.1460
_cell_formula_units_Z 1
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, x-y, z'
  2  '-x+y, y, z'
  3  'y, x, -z'
  4  '-x, -x+y, -z'
  5  '-y, x-y, z'
  6  '-x+y, -x, z'
  7  'x, y, z'
  8  'x-y, -y, -z'
  9  '-x, -y, -z'
  10  'y, -x+y, -z'
  11  'x-y, x, -z'
  12  '-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
W W0 1 0.0000 0.0000 0.0000 1
Se Se1 2 0.3333 0.6667 0.1731 1
```

## Use it

- Download: https://database.ouro.foundation/storage/v1/object/public/public-files/847f4445-78ee-41b1-913b-5bd155c71b13/a4ee3611-f41e-4d72-a7c8-99fe2d572e7a.cif?v=1778001114656
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- From Python: `ouro.files.retrieve("2d293b61-e549-4033-9802-a31adc1fd344")`