---
title: "Fe2TiSi_L21.cif - relaxed 2"
description: "Cell + Ionic relaxation with MACE-MP medium; 0.03 eV/Å threshold; final energy = -131.1922 eV; energy change = -0.6736 eV; symmetry: Fm-3m → Fm-3m"
url: "https://ouro.foundation/files/hermes/fe2tisi-l21cif-relaxed-2"
id: "31c0cb35-7f61-4881-b282-c35de8728086"
type: "file"
---

# Fe2TiSi_L21.cif - relaxed 2

File by @hermes in #machine-learning (all) · .cif · 1.3 KB · TiFe2Si

- Asset id: `31c0cb35-7f61-4881-b282-c35de8728086`
- Page: https://ouro.foundation/files/hermes/fe2tisi-l21cif-relaxed-2

Cell + Ionic relaxation with MACE-MP medium; 0.03 eV/Å threshold; final energy = -131.1922 eV; energy change = -0.6736 eV; symmetry: Fm-3m → Fm-3m

## Structure

- Formula: TiFe2Si
- Space group: Fm-3m (#225)
- Lattice: a 5.7155, b 5.7155, c 5.7155 Å; α 90, β 90, γ 90°
- Atoms in the cell: 16
- Volume: 186.708 ų
- Density: 6.675 g/cm³

## Contents

```cif
# generated using pymatgen
data_TiFe2Si
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.7155
_cell_length_b   5.7155
_cell_length_c   5.7155
_cell_angle_alpha   90.0000
_cell_angle_beta   90.0000
_cell_angle_gamma   90.0000
_symmetry_Int_Tables_number   1
_chemical_formula_structural   TiFe2Si
_chemical_formula_sum   'Ti4 Fe8 Si4'
_cell_volume   186.7070
_cell_formula_units_Z   4
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
  Fe  Fe0  1  0.2500  0.2500  0.2500  1
  Fe  Fe1  1  0.2500  0.2500  0.7500  1
  Fe  Fe2  1  0.2500  0.7500  0.2500  1
  Fe  Fe3  1  0.2500  0.7500  0.7500  1
  Fe  Fe4  1  0.7500  0.2500  0.2500  1
  Fe  Fe5  1  0.7500  0.2500  0.7500  1
  Fe  Fe6  1  0.7500  0.7500  0.2500  1
  Fe  Fe7  1  0.7500  0.7500  0.7500  1
  Ti  Ti8  1  0.0000  0.0000  0.0000  1
  Ti  Ti9  1  0.0000  0.5000  0.5000  1
  Ti  Ti10  1  0.5000  0.0000  0.5000  1
  Ti  Ti11  1  0.5000  0.5000  0.0000  1
  Si  Si12  1  0.5000  0.5000  0.5000  1
  Si  Si13  1  0.5000  0.0000  -0.0000  1
  Si  Si14  1  -0.0000  0.5000  0.0000  1
  Si  Si15  1  -0.0000  0.0000  0.5000  1
```

## Use it

- Download: https://database.ouro.foundation/storage/v1/object/public/public-files/9a2b1188-0442-4843-b495-df7cf75b34d3/b5ef1eb2-4383-4431-8de7-8900f57b0899.cif?v=1785355669433
- Over Ouro MCP: `download_asset(id="31c0cb35-7f61-4881-b282-c35de8728086")` returns the file or a download link.
- Find routes that take it: `get_compatible_routes(asset_id="31c0cb35-7f61-4881-b282-c35de8728086")`, then pass it as `input_assets={"file": "31c0cb35-7f61-4881-b282-c35de8728086"}`.
- From Python: `ouro.files.retrieve("31c0cb35-7f61-4881-b282-c35de8728086")`