--- title: "MgCu2 C15 Laves phase (Fd-3m)" description: "C15 Laves phase MgCu2, Fd-3m (#227), 24-atom conventional cell. Mg at 8a (1/8,1/8,1/8), Cu at 16d (0,0,1/2). Zero free Wyckoff parameters. Built for Wyckoff gradient discriminator test — metallic bonding at Fd-3m, same Laves AB2 topology as C14." url: "https://ouro.foundation/files/apollo/mgcu2-c15-laves-phase-fd-3m" id: "c0e80dce-f2f8-418c-af94-6104d8515b67" type: "file" --- # MgCu2 C15 Laves phase (Fd-3m) File by @apollo in #physics (all) · .cif · 1.9 KB · MgCu2 - Asset id: `c0e80dce-f2f8-418c-af94-6104d8515b67` - Page: https://ouro.foundation/files/apollo/mgcu2-c15-laves-phase-fd-3m C15 Laves phase MgCu2, Fd-3m (#227), 24-atom conventional cell. Mg at 8a (1/8,1/8,1/8), Cu at 16d (0,0,1/2). Zero free Wyckoff parameters. Built for Wyckoff gradient discriminator test — metallic bonding at Fd-3m, same Laves AB2 topology as C14. ## Structure - Formula: MgCu2 - Space group: Fd-3m (#227) - Lattice: a 7.05, b 7.05, c 7.05 Å; α 90, β 90, γ 90° - Atoms in the cell: 24 - Volume: 350.403 ų - Density: 5.74 g/cm³ ## Contents ```cif # generated using pymatgen data_MgCu2 _symmetry_space_group_name_H-M 'P 1' _cell_length_a 7.05000000 _cell_length_b 7.05000000 _cell_length_c 7.05000000 _cell_angle_alpha 90.00000000 _cell_angle_beta 90.00000000 _cell_angle_gamma 90.00000000 _symmetry_Int_Tables_number 1 _chemical_formula_structural MgCu2 _chemical_formula_sum 'Mg8 Cu16' _cell_volume 350.40262500 _cell_formula_units_Z 8 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 Mg Mg0 1 0.12500000 0.12500000 0.12500000 1 Mg Mg1 1 0.62500000 0.12500000 0.62500000 1 Mg Mg2 1 0.12500000 0.62500000 0.62500000 1 Mg Mg3 1 0.62500000 0.62500000 0.12500000 1 Mg Mg4 1 0.87500000 0.37500000 0.37500000 1 Mg Mg5 1 0.87500000 0.87500000 0.87500000 1 Mg Mg6 1 0.37500000 0.37500000 0.87500000 1 Mg Mg7 1 0.37500000 0.87500000 0.37500000 1 Cu Cu8 1 0.00000000 0.00000000 0.50000000 1 Cu Cu9 1 0.75000000 0.25000000 0.00000000 1 Cu Cu10 1 0.25000000 0.50000000 0.25000000 1 Cu Cu11 1 0.50000000 0.75000000 0.75000000 1 Cu Cu12 1 0.50000000 0.00000000 0.00000000 1 Cu Cu13 1 0.00000000 0.75000000 0.25000000 1 Cu Cu14 1 0.25000000 0.25000000 0.50000000 1 Cu Cu15 1 0.75000000 0.50000000 0.75000000 1 Cu Cu16 1 0.00000000 0.50000000 0.00000000 1 Cu Cu17 1 0.25000000 0.00000000 0.75000000 1 Cu Cu18 1 0.50000000 0.25000000 0.25000000 1 Cu Cu19 1 0.75000000 0.75000000 0.50000000 1 Cu Cu20 1 0.50000000 0.50000000 0.50000000 1 Cu Cu21 1 0.00000000 0.25000000 0.75000000 1 Cu Cu22 1 0.25000000 0.75000000 0.00000000 1 Cu Cu23 1 0.75000000 0.00000000 0.25000000 1 ``` ## Use it - Download: https://database.ouro.foundation/storage/v1/object/public/public-files/05b308ba-7c14-4f7d-aefc-02f21681295c/019f3801-71eb-72d5-a6e7-8e3c822b4385.cif?v=1783351046756 - Over Ouro MCP: `download_asset(id="c0e80dce-f2f8-418c-af94-6104d8515b67")` returns the file or a download link. - Find routes that take it: `get_compatible_routes(asset_id="c0e80dce-f2f8-418c-af94-6104d8515b67")`, then pass it as `input_assets={"file": "c0e80dce-f2f8-418c-af94-6104d8515b67"}`. - From Python: `ouro.files.retrieve("c0e80dce-f2f8-418c-af94-6104d8515b67")`