data_Sr2YCd
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.59
_cell_length_b   5.55
_cell_length_c   5.64
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Sr2YCd
_chemical_formula_sum   'Sr2 Y1 Cd1'
_cell_volume   143.67
_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
  Sr  Sr1  1  0.0  0.0  0.0  1.0
  Sr  Sr2  1  0.3  0.77  0.0  1.0
  Y  Y3  1  0.3  0.0  0.82  1.0
  Cd  Cd0  1  0.0  0.77  0.82  1.0

data_Sr2YCd
_symmetry_space_group_name_H-M   P1
_cell_length_a   4.59
_cell_length_b   5.55
_cell_length_c   5.64
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Sr2YCd
_chemical_formula_sum   'Sr2 Y1 Cd1'
_cell_volume   143.67
_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
  Sr  Sr0  1  0.0  0.0  0.0  1.0
  Sr  Sr1  1  0.3  0.77  -0.0  1.0
  Y  Y2  1  0.3  0.0  0.82  1.0
  Cd  Cd3  1  0.0  0.77  0.82  1.0

Sr Sr Y Cd
Sr Sr Y Cd 0 3 o - - 0 1 o - o 0 2 o o - 1 3 o o - 1 2 o + - 2 3 o - o 
Sr2YCd is alpha Po structured and crystallizes in the triclinic P1 space group. The structure is zero-dimensional and consists of one Sr2YCd cluster. There are two inequivalent Sr sites. In the first Sr site, Sr(1) is bonded in a 2-coordinate geometry to one Y(1) and one Cd(1) atom. The Sr(1)-Y(1) bond length is 1.71 Å. The Sr(1)-Cd(1) bond length is 1.62 Å. In the second Sr site, Sr(2) is bonded in a 2-coordinate geometry to one Y(1) and one Cd(1) atom. The Sr(2)-Y(1) bond length is 1.62 Å. The Sr(2)-Cd(1) bond length is 1.71 Å. Y(1) is bonded in a 3-coordinate geometry to one Sr(1), one Sr(2), and one Cd(1) atom. The Y(1)-Cd(1) bond length is 1.85 Å. Cd(1) is bonded in a 3-coordinate geometry to one Sr(1), one Sr(2), and one Y(1) atom.