data_SrMgSi
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.55
_cell_length_b   4.55
_cell_length_c   4.7
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   SrMgSi
_chemical_formula_sum   'Sr1 Mg1 Si1'
_cell_volume   84.18
_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  Sr2  1  0.27  0.31  0.1  1.0
  Mg  Mg0  1  0.0  0.0  0.76  1.0
  Si  Si1  1  0.0  0.63  0.84  1.0

data_SrMgSi
_symmetry_space_group_name_H-M   P1
_cell_length_a   4.55
_cell_length_b   4.55
_cell_length_c   4.7
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   SrMgSi
_chemical_formula_sum   'Sr1 Mg1 Si1'
_cell_volume   84.18
_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  0.27  0.31  0.1  1.0
  Mg  Mg1  1  0.0  0.0  0.76  1.0
  Si  Si2  1  0.0  0.63  0.84  1.0

Sr Mg Si
Sr Mg Si 0 1 o o - 1 2 o - o 
MgSrSi crystallizes in the triclinic P1 space group. Sr(1) is bonded in a 4-coordinate geometry to two equivalent Mg(1) and two equivalent Si(1) atoms. There is one shorter (2.08 Å) and one longer (3.39 Å) Sr(1)-Mg(1) bond length. There is one shorter (2.63 Å) and one longer (3.12 Å) Sr(1)-Si(1) bond length. Mg(1) is bonded in a 2-coordinate geometry to two equivalent Sr(1) and one Si(1) atom. The Mg(1)-Si(1) bond length is 1.73 Å. Si(1) is bonded in a 1-coordinate geometry to two equivalent Sr(1) and one Mg(1) atom.