data_YInCu2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.72
_cell_length_b   4.72
_cell_length_c   4.72
_cell_angle_alpha   121.62
_cell_angle_beta   121.62
_cell_angle_gamma   87.21
_symmetry_Int_Tables_number   1
_chemical_formula_structural   YInCu2
_chemical_formula_sum   'Y1 In1 Cu2'
_cell_volume   72.57
_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
  Y  Y3  1  0.0  0.0  0.0  1.0
  In  In2  1  0.0  0.0  0.42  1.0
  Cu  Cu0  1  0.3  0.0  0.71  1.0
  Cu  Cu1  1  0.0  0.3  0.71  1.0

data_YInCu2
_symmetry_space_group_name_H-M   Cm
_cell_length_a   6.51
_cell_length_b   6.51
_cell_length_c   4.72
_cell_angle_alpha   90.0
_cell_angle_beta   133.61
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   YInCu2
_chemical_formula_sum   'Y2 In2 Cu4'
_cell_volume   145.15
_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+1/2, y+1/2, z'
  4  'x+1/2, -y+1/2, 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
  Y  Y0  2  0.0  0.0  0.0  1.0
  In  In1  2  0.0  0.0  0.42  1.0
  Cu  Cu2  4  0.35  0.35  0.41  1.0

Y In Cu Cu
Y In Cu Cu 0 3 o o - 0 2 o o - 0 1 o o o 1 3 o o o 1 2 o o o 
YCu2In crystallizes in the monoclinic Cm space group. Y(1) is bonded in a 5-coordinate geometry to four equivalent Cu(1) and one In(1) atom. There are two shorter (2.45 Å) and two longer (2.82 Å) Y(1)-Cu(1) bond lengths. The Y(1)-In(1) bond length is 1.98 Å. Cu(1) is bonded in a 1-coordinate geometry to two equivalent Y(1) and one In(1) atom. The Cu(1)-In(1) bond length is 1.37 Å. In(1) is bonded in a distorted trigonal non-coplanar geometry to one Y(1) and two equivalent Cu(1) atoms.