The material described by SrGe2 is hexagonal omega structure structured and crystallizes in the trigonal P-3m1 space group. Sr(1) is bonded to six equivalent Ge(1) atoms to form SrGe6 octahedra that share corners with six equivalent Ge(1)Sr3Ge3 octahedra, edges with six equivalent Sr(1)Ge6 octahedra, and edges with six equivalent Ge(1)Sr3Ge3 octahedra. The corner-sharing octahedral tilt angles are 19°. Ge(1) is bonded to three equivalent Sr(1) and three equivalent Ge(1) atoms to form distorted GeSr3Ge3 octahedra that share corners with three equivalent Sr(1)Ge6 octahedra, corners with three equivalent Ge(1)Sr3Ge3 octahedra, edges with three equivalent Sr(1)Ge6 octahedra, and edges with nine equivalent Ge(1)Sr3Ge3 octahedra. The corner-sharing octahedral tilt angles range from 0-19°. is represented by the Crystallographic Information File (CIF) [CIF]
data_SrGe2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.132
_cell_length_b   4.132
_cell_length_c   5.148
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   76.113
_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  0.000  0.000  0.000  1.0
  Ge  Ge1  1  0.667  0.333  0.595  1.0
  Ge  Ge2  1  0.333  0.667  0.405  1.0
[/CIF]
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The material described by SrGe2 is hexagonal omega structure structured and crystallizes in the trigonal P-3m1 space group. Sr(1) is bonded to six equivalent Ge(1) atoms to form SrGe6 octahedra that share corners with six equivalent Ge(1)Sr3Ge3 octahedra, edges with six equivalent Sr(1)Ge6 octahedra, and edges with six equivalent Ge(1)Sr3Ge3 octahedra. The corner-sharing octahedral tilt angles are 19°. Ge(1) is bonded to three equivalent Sr(1) and three equivalent Ge(1) atoms to form distorted GeSr3Ge3 octahedra that share corners with three equivalent Sr(1)Ge6 octahedra, corners with three equivalent Ge(1)Sr3Ge3 octahedra, edges with three equivalent Sr(1)Ge6 octahedra, and edges with nine equivalent Ge(1)Sr3Ge3 octahedra. The corner-sharing octahedral tilt angles range from 0-19°. is represented by the Crystallographic Information File (CIF) [CIF]
data_SrGe2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.132
_cell_length_b   4.132
_cell_length_c   5.148
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   76.113
_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  0.000  0.000  0.000  1.0
  Ge  Ge1  1  0.667  0.333  0.595  1.0
  Ge  Ge2  1  0.333  0.667  0.405  1.0
[/CIF]
.