data_Y2MgMo
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.56
_cell_length_b   3.56
_cell_length_c   7.92
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Y2MgMo
_chemical_formula_sum   'Y2 Mg1 Mo1'
_cell_volume   100.54
_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  Y2  1  0.78  0.78  0.64  1.0
  Y  Y3  1  0.78  0.78  0.27  1.0
  Mg  Mg0  1  0.0  0.0  0.0  1.0
  Mo  Mo1  1  0.0  0.0  0.96  1.0

data_Y2MgMo
_symmetry_space_group_name_H-M   Cm
_cell_length_a   5.04
_cell_length_b   5.04
_cell_length_c   7.92
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   Y2MgMo
_chemical_formula_sum   'Y4 Mg2 Mo2'
_cell_volume   201.09
_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  0.28  0.5  0.27  1.0
  Y  Y1  2  0.28  0.5  0.64  1.0
  Mg  Mg2  2  0.0  0.0  0.0  1.0
  Mo  Mo3  2  0.0  0.0  0.96  1.0

Y Y Mg Mo
MgY2Mo crystallizes in the monoclinic Cm space group. The structure is zero-dimensional and consists of two MgY2Mo clusters. Mg(1) is bonded in a single-bond geometry to one Y(2) and one Mo(1) atom. The Mg(1)-Y(2) bond length is 2.43 Å. The Mg(1)-Mo(1) bond length is 0.33 Å. There are two inequivalent Y sites. In the first Y site, Y(1) is bonded in a distorted single-bond geometry to one Mo(1) atom. The Y(1)-Mo(1) bond length is 2.73 Å. In the second Y site, Y(2) is bonded in a distorted single-bond geometry to one Mg(1) atom. Mo(1) is bonded in a single-bond geometry to one Mg(1) and one Y(1) atom.