data_YInCu2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.72
_cell_length_b   4.72
_cell_length_c   3.3
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.78
_symmetry_Int_Tables_number   1
_chemical_formula_structural   YInCu2
_chemical_formula_sum   'Y1 In1 Cu2'
_cell_volume   73.55
_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  0.31  0.0  0.0  1.0
  Cu  Cu0  1  0.66  0.68  0.65  1.0
  Cu  Cu1  1  0.66  0.32  0.65  1.0

data_YInCu2
_symmetry_space_group_name_H-M   Pm
_cell_length_a   3.3
_cell_length_b   4.72
_cell_length_c   4.72
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   6
_chemical_formula_structural   YInCu2
_chemical_formula_sum   'Y1 In1 Cu2'
_cell_volume   73.55
_cell_formula_units_Z   1
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  '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  Y0  1  0.0  0.0  0.0  1.0
  In  In1  1  -0.0  0.0  0.31  1.0
  Cu  Cu2  2  0.65  0.32  0.66  1.0

Y In Cu Cu
Y In Cu Cu 0 1 o o o 2 3 o o o 
YCu2In crystallizes in the monoclinic Pm space group. Y(1) is bonded in a 1-coordinate geometry to four equivalent Cu(1) and one In(1) atom. There are two shorter (2.50 Å) and two longer (3.09 Å) Y(1)-Cu(1) bond lengths. The Y(1)-In(1) bond length is 1.48 Å. Cu(1) is bonded in a 5-coordinate geometry to two equivalent Y(1), one Cu(1), and two equivalent In(1) atoms. The Cu(1)-Cu(1) bond length is 1.70 Å. There is one shorter (2.50 Å) and one longer (3.09 Å) Cu(1)-In(1) bond length. In(1) is bonded in a distorted single-bond geometry to one Y(1) and four equivalent Cu(1) atoms.