data_NaSrBeCo
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.87
_cell_length_b   4.87
_cell_length_c   4.87
_cell_angle_alpha   60.0
_cell_angle_beta   60.0
_cell_angle_gamma   60.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   NaSrBeCo
_chemical_formula_sum   'Na1 Sr1 Be1 Co1'
_cell_volume   81.62
_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
  Na  Na2  1  0.44  0.44  0.44  1.0
  Sr  Sr3  1  0.72  0.72  0.72  1.0
  Be  Be0  1  0.0  0.0  0.0  1.0
  Co  Co1  1  0.16  0.16  0.16  1.0

data_NaSrBeCo
_symmetry_space_group_name_H-M   R3m
_cell_length_a   4.87
_cell_length_b   4.87
_cell_length_c   11.93
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   160
_chemical_formula_structural   NaSrBeCo
_chemical_formula_sum   'Na3 Sr3 Be3 Co3'
_cell_volume   244.86
_cell_formula_units_Z   3
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  '-y, x-y, z'
  3  '-x+y, -x, z'
  4  '-y, -x, z'
  5  '-x+y, y, z'
  6  'x, x-y, z'
  7  'x+1/3, y+2/3, z+2/3'
  8  '-y+1/3, x-y+2/3, z+2/3'
  9  '-x+y+1/3, -x+2/3, z+2/3'
  10  '-y+1/3, -x+2/3, z+2/3'
  11  '-x+y+1/3, y+2/3, z+2/3'
  12  'x+1/3, x-y+2/3, z+2/3'
  13  'x+2/3, y+1/3, z+1/3'
  14  '-y+2/3, x-y+1/3, z+1/3'
  15  '-x+y+2/3, -x+1/3, z+1/3'
  16  '-y+2/3, -x+1/3, z+1/3'
  17  '-x+y+2/3, y+1/3, z+1/3'
  18  'x+2/3, x-y+1/3, z+1/3'
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
  Na  Na0  3  0.0  0.0  0.56  1.0
  Sr  Sr1  3  0.0  0.0  0.28  1.0
  Be  Be2  3  0.0  0.0  0.0  1.0
  Co  Co3  3  0.0  0.0  0.84  1.0

Na Sr Be Co
Na Sr Be Co 0 3 o o o 0 3 o o + 0 3 o + o 0 3 + o o 0 2 o o + 0 2 o + o 0 2 + o o 0 1 - o o 0 1 o - o 0 1 o o - 0 1 o o o 1 3 o + + 1 3 + o + 1 3 + + o 1 2 o + + 1 2 + o + 1 2 + + o 1 2 + + + 2 3 o o o 
NaSrBeCo crystallizes in the trigonal R3m space group. Na(1) is bonded in a 11-coordinate geometry to four equivalent Sr(1), three equivalent Be(1), and four equivalent Co(1) atoms. There are three shorter (2.89 Å) and one longer (3.32 Å) Na(1)-Sr(1) bond length. All Na(1)-Be(1) bond lengths are 3.10 Å. There are three shorter (2.89 Å) and one longer (3.32 Å) Na(1)-Co(1) bond length. Sr(1) is bonded in a 11-coordinate geometry to four equivalent Na(1), four equivalent Be(1), and three equivalent Co(1) atoms. There are three shorter (2.89 Å) and one longer (3.32 Å) Sr(1)-Be(1) bond length. All Sr(1)-Co(1) bond lengths are 3.10 Å. Be(1) is bonded in a distorted single-bond geometry to three equivalent Na(1), four equivalent Sr(1), and one Co(1) atom. The Be(1)-Co(1) bond length is 1.96 Å. Co(1) is bonded in a distorted single-bond geometry to four equivalent Na(1), three equivalent Sr(1), and one Be(1) atom.