data_CaMg2W
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.6
_cell_length_b   4.6
_cell_length_c   4.08
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   CaMg2W
_chemical_formula_sum   'Ca1 Mg2 W1'
_cell_volume   86.12
_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
  Ca  Ca0  1  0.0  0.0  0.0  1.0
  Mg  Mg1  1  0.0  0.3  0.04  1.0
  Mg  Mg2  1  0.3  0.0  0.04  1.0
  W  W3  1  0.3  0.3  0.0  1.0

data_CaMg2W
_symmetry_space_group_name_H-M   Cm
_cell_length_a   6.5
_cell_length_b   6.5
_cell_length_c   4.08
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   CaMg2W
_chemical_formula_sum   'Ca2 Mg4 W2'
_cell_volume   172.24
_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
  Ca  Ca0  2  0.0  0.0  0.0  1.0
  Mg  Mg1  4  0.15  0.15  0.04  1.0
  W  W2  2  0.3  0.0  0.0  1.0

Ca Mg Mg W
Ca Mg Mg W 0 2 o o o 0 1 o o o 1 3 o o o 2 3 o o o 
CaMg2W is alpha Po structured and crystallizes in the monoclinic Cm space group. The structure is zero-dimensional and consists of two CaMg2W clusters. Ca(1) is bonded in an L-shaped geometry to two equivalent Mg(1) atoms. Both Ca(1)-Mg(1) bond lengths are 1.38 Å. Mg(1) is bonded in a distorted L-shaped geometry to one Ca(1) and one W(1) atom. The Mg(1)-W(1) bond length is 1.38 Å. W(1) is bonded in an L-shaped geometry to two equivalent Mg(1) atoms.