The material structure described by SrC2 crystallizes in the trigonal R-3m space group. Sr(1) is bonded to eight equivalent C(1) atoms to form SrC8 hexagonal bipyramids that share corners with eight equivalent C(1)Sr4C trigonal bipyramids and edges with twelve equivalent Sr(1)C8 hexagonal bipyramids. C(1) is bonded to four equivalent Sr(1) and one C(1) atom to form distorted CSr4C trigonal bipyramids that share corners with four equivalent Sr(1)C8 hexagonal bipyramids, corners with sixteen equivalent C(1)Sr4C trigonal bipyramids, and edges with six equivalent C(1)Sr4C trigonal bipyramids. is represented by the CIF card [CIF]
data_SrC2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.711
_cell_length_b   3.711
_cell_length_c   3.711
_cell_angle_alpha   85.434
_cell_angle_beta   85.434
_cell_angle_gamma   85.434
_symmetry_Int_Tables_number   1
_cell_volume   50.635
_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
  C  C1  1  0.592  0.592  0.592  1.0
  C  C2  1  0.408  0.408  0.408  1.0
[/CIF]
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The material structure described by SrC2 crystallizes in the trigonal R-3m space group. Sr(1) is bonded to eight equivalent C(1) atoms to form SrC8 hexagonal bipyramids that share corners with eight equivalent C(1)Sr4C trigonal bipyramids and edges with twelve equivalent Sr(1)C8 hexagonal bipyramids. C(1) is bonded to four equivalent Sr(1) and one C(1) atom to form distorted CSr4C trigonal bipyramids that share corners with four equivalent Sr(1)C8 hexagonal bipyramids, corners with sixteen equivalent C(1)Sr4C trigonal bipyramids, and edges with six equivalent C(1)Sr4C trigonal bipyramids. is represented by the CIF card [CIF]
data_SrC2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.711
_cell_length_b   3.711
_cell_length_c   3.711
_cell_angle_alpha   85.434
_cell_angle_beta   85.434
_cell_angle_gamma   85.434
_symmetry_Int_Tables_number   1
_cell_volume   50.635
_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
  C  C1  1  0.592  0.592  0.592  1.0
  C  C2  1  0.408  0.408  0.408  1.0
[/CIF]
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