data_Cu2ReSi
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.27
_cell_length_b   3.27
_cell_length_c   4.99
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Cu2ReSi
_chemical_formula_sum   'Cu2 Re1 Si1'
_cell_volume   53.33
_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
  Cu  Cu0  1  0.63  0.63  0.24  1.0
  Cu  Cu1  1  0.63  0.63  0.75  1.0
  Re  Re2  1  0.0  0.0  0.5  1.0
  Si  Si3  1  0.0  0.0  0.0  1.0

data_Cu2ReSi
_symmetry_space_group_name_H-M   Amm2
_cell_length_a   4.99
_cell_length_b   4.62
_cell_length_c   4.62
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   38
_chemical_formula_structural   Cu2ReSi
_chemical_formula_sum   'Cu4 Re2 Si2'
_cell_volume   106.67
_cell_formula_units_Z   2
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  '-x, -y, z'
  3  '-x, y, z'
  4  'x, -y, z'
  5  'x, y+1/2, z+1/2'
  6  '-x, -y+1/2, z+1/2'
  7  '-x, y+1/2, z+1/2'
  8  'x, -y+1/2, z+1/2'
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
  Cu  Cu0  4  0.25  0.0  0.63  1.0
  Re  Re1  2  0.0  0.0  0.0  1.0
  Si  Si2  2  0.5  0.0  0.0  1.0

Cu Cu Re Si
ReCu2Si crystallizes in the monoclinic Cm space group. Re(1) is bonded in a 2-coordinate geometry to one Cu(1), one Cu(2), and two equivalent Si(1) atoms. The Re(1)-Cu(1) bond length is 2.11 Å. The Re(1)-Cu(2) bond length is 2.11 Å. There is one shorter (2.48 Å) and one longer (2.52 Å) Re(1)-Si(1) bond length. There are two inequivalent Cu sites. In the first Cu site, Cu(1) is bonded in a 2-coordinate geometry to one Re(1) and three equivalent Si(1) atoms. There is one shorter (2.08 Å) and two longer (2.68 Å) Cu(1)-Si(1) bond lengths. In the second Cu site, Cu(2) is bonded in a 2-coordinate geometry to one Re(1) and three equivalent Si(1) atoms. There is one shorter (2.10 Å) and two longer (2.70 Å) Cu(2)-Si(1) bond lengths. Si(1) is bonded in a 8-coordinate geometry to two equivalent Re(1), three equivalent Cu(1), and three equivalent Cu(2) atoms.