data_YMgSn
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.71
_cell_length_b   6.71
_cell_length_c   6.71
_cell_angle_alpha   149.41
_cell_angle_beta   149.41
_cell_angle_gamma   43.81
_symmetry_Int_Tables_number   1
_chemical_formula_structural   YMgSn
_chemical_formula_sum   'Y1 Mg1 Sn1'
_cell_volume   78.07
_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  0.0  0.0  0.34  1.0
  Mg  Mg0  1  0.0  0.0  0.3  1.0
  Sn  Sn1  1  0.0  0.0  0.27  1.0

data_YMgSn
_symmetry_space_group_name_H-M   Cm
_cell_length_a   5.01
_cell_length_b   5.01
_cell_length_c   6.71
_cell_angle_alpha   90.0
_cell_angle_beta   111.91
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   YMgSn
_chemical_formula_sum   'Y2 Mg2 Sn2'
_cell_volume   156.14
_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  0.34  0.0  0.34  1.0
  Mg  Mg1  2  0.3  0.0  0.3  1.0
  Sn  Sn2  2  0.27  0.0  0.27  1.0

Y Mg Sn
MgSnY is Cyanogen Chloride-like structured and crystallizes in the monoclinic Cm space group. The structure is zero-dimensional and consists of two MgSnY clusters. Mg(1) is bonded in a linear geometry to one Y(1) and one Sn(1) atom. The Mg(1)-Y(1) bond length is 0.31 Å. The Mg(1)-Sn(1) bond length is 0.21 Å. Y(1) is bonded in a single-bond geometry to one Mg(1) atom. Sn(1) is bonded in a single-bond geometry to one Mg(1) atom.