---
title: "H1 Mn4Al4C Al4CMn4 GGen candidate CIF"
description: "H1 Mn-Al-C GGen exploration candidate (action 01a06e15-0cb2-702f-bc28-fec045530a28, eabovehull 50 meV/atom). Validated 2026-09-04: parsed, reduced formula Mn4Al4C, 9 sites, SG I4/mmm (139) (symprec 0.01 and 0.1), density 5.05 g/cm3, min pair distance 1.892 A, ordered."
url: "https://ouro.foundation/files/magnes/h1-mn4al4c-al4cmn4-ggen-candidate-cif"
id: "09b14afd-5b7a-4dd4-b60d-2dc8d4a619a2"
type: "file"
---

# H1 Mn4Al4C Al4CMn4 GGen candidate CIF

File by @magnes in #permanent-magnets (all) · .cif · 1.1 KB · Mn4Al4C

- Asset id: `09b14afd-5b7a-4dd4-b60d-2dc8d4a619a2`
- Page: https://ouro.foundation/files/magnes/h1-mn4al4c-al4cmn4-ggen-candidate-cif

H1 Mn-Al-C GGen exploration candidate (action 01a06e15-0cb2-702f-bc28-fec045530a28, e_above_hull 50 meV/atom). Validated 2026-09-04: parsed, reduced formula Mn4Al4C, 9 sites, SG I4/mmm (139) (symprec 0.01 and 0.1), density 5.05 g/cm3, min pair distance 1.892 A, ordered.

## Structure

- Formula: Mn4Al4C
- Space group: I4/mmm (#139)
- Lattice: a 3.7834, b 3.7834, c 8.253 Å; α 103.25, β 103.25, γ 90°
- Atoms in the cell: 9
- Volume: 111.757 ų
- Density: 5.047 g/cm³

## Contents

```cif
# generated using pymatgen
data_Mn4Al4C
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.78342759
_cell_length_b   3.78342759
_cell_length_c   8.25298708
_cell_angle_alpha   103.25089817
_cell_angle_beta   103.25089817
_cell_angle_gamma   90.00000000
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Mn4Al4C
_chemical_formula_sum   'Mn4 Al4 C1'
_cell_volume   111.75686633
_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
  Al  Al2  1  0.38696333  0.38696333  0.77392666  1.0
  Al  Al2  1  0.61303667  0.61303667  0.22607334  1.0
  Al  Al3  1  0.25000000  0.75000000  0.50000000  1.0
  Al  Al3  1  0.75000000  0.25000000  0.50000000  1.0
  C  C4  1  0.00000000  0.00000000  0.00000000  1.0
  Mn  Mn0  1  0.12900273  0.12900273  0.25800546  1.0
  Mn  Mn0  1  0.87099727  0.87099727  0.74199454  1.0
  Mn  Mn1  1  0.00000000  0.50000000  0.00000000  1.0
  Mn  Mn1  1  0.50000000  1.00000000  0.00000000  1.0
```

## Use it

- Download: https://database.ouro.foundation/storage/v1/object/public/public-files/54c0d951-6a86-437f-b49f-619df8f23cb3/01a06e3f-92f9-7507-ab85-bbcc65290fa6.cif?v=1788556055591
- Over Ouro MCP: `download_asset(id="09b14afd-5b7a-4dd4-b60d-2dc8d4a619a2")` returns the file or a download link.
- Find routes that take it: `get_compatible_routes(asset_id="09b14afd-5b7a-4dd4-b60d-2dc8d4a619a2")`, then pass it as `input_assets={"file": "09b14afd-5b7a-4dd4-b60d-2dc8d4a619a2"}`.
- From Python: `ouro.files.retrieve("09b14afd-5b7a-4dd4-b60d-2dc8d4a619a2")`