[CIF]
data_MgSiSe2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.63097170
_cell_length_b   3.74543536
_cell_length_c   7.28571898
_cell_angle_alpha   90.00000000
_cell_angle_beta   90.00000000
_cell_angle_gamma   90.00000000
_symmetry_Int_Tables_number   1
_chemical_formula_structural   MgSiSe2
_chemical_formula_sum   'Mg1 Si1 Se2'
_cell_volume   99.08264379
_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
  Mg  Mg0  1  0.00000000  0.00000000  0.00000000  1
  Se  Se1  1  1.81548585  0.00000000  3.64285949  1
  Se  Se2  1  1.81548585  1.87271768  0.00000000  1
  Si  Si3  1  0.00000000  1.87271768  3.64285949  1
[/CIF]
