data_[Tm4Co2Cu2Si8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Tm  1.2500  1.7500  1.0950
  Co  1.8800  1.3500  0.7683
  Cu  1.9000  1.3500  0.8200
  Si  1.9000  1.1000  0.5400
]
_symmetry_space_group_name_H-M [Amm2]
_cell_length_a [3.9449]
_cell_length_b [3.9478]
_cell_length_c [16.5456]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [38]
_chemical_formula_structural [Tm2CoCuSi4]
_chemical_formula_sum '[Tm4 Co2 Cu2 Si8]'
_cell_volume [257.6751]
_cell_formula_units_Z [2]
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
[
  Tm  Tm0  2  0.0000  0.0000  0.6092  1
  Tm  Tm1  2  0.5000  0.0000  0.3978  1
  Co  Co2  2  0.0000  0.0000  0.8215  1
  Si  Si3  2  0.0000  0.0000  0.2549  1
  Si  Si4  2  0.0000  0.0000  0.9558  1
  Si  Si5  2  0.5000  0.0000  0.0345  1
  Cu  Cu6  2  0.5000  0.0000  0.1711  1
  Si  Si7  2  0.5000  0.0000  0.7552  1
]