data_SrCaNbOs
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.99
_cell_length_b   4.99
_cell_length_c   4.99
_cell_angle_alpha   60.0
_cell_angle_beta   60.0
_cell_angle_gamma   60.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   SrCaNbOs
_chemical_formula_sum   'Sr1 Ca1 Nb1 Os1'
_cell_volume   87.73
_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  Sr3  1  0.29  0.29  0.29  1.0
  Ca  Ca0  1  0.0  0.0  0.0  1.0
  Nb  Nb1  1  0.53  0.53  0.53  1.0
  Os  Os2  1  0.76  0.76  0.76  1.0

data_SrCaNbOs
_symmetry_space_group_name_H-M   R3m
_cell_length_a   4.99
_cell_length_b   4.99
_cell_length_c   12.22
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   160
_chemical_formula_structural   SrCaNbOs
_chemical_formula_sum   'Sr3 Ca3 Nb3 Os3'
_cell_volume   263.2
_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
  Sr  Sr0  3  0.0  0.0  0.71  1.0
  Ca  Ca1  3  0.0  0.0  0.0  1.0
  Nb  Nb2  3  0.0  0.0  0.47  1.0
  Os  Os3  3  0.0  0.0  0.24  1.0

Sr Ca Nb Os
SrCaNbOs crystallizes in the trigonal R3m space group. Sr(1) is bonded in a 14-coordinate geometry to four equivalent Ca(1), four equivalent Nb(1), and six equivalent Os(1) atoms. There are three shorter (2.93 Å) and one longer (3.54 Å) Sr(1)-Ca(1) bond length. There is one shorter (2.89 Å) and three longer (3.11 Å) Sr(1)-Nb(1) bond lengths. There are three shorter (3.35 Å) and three longer (3.73 Å) Sr(1)-Os(1) bond lengths. Ca(1) is bonded in a 4-coordinate geometry to four equivalent Sr(1) and four equivalent Os(1) atoms. There is one shorter (2.89 Å) and three longer (3.11 Å) Ca(1)-Os(1) bond lengths. Nb(1) is bonded in a 8-coordinate geometry to four equivalent Sr(1) and four equivalent Os(1) atoms. There is one shorter (2.89 Å) and three longer (3.11 Å) Nb(1)-Os(1) bond lengths. Os(1) is bonded in a 11-coordinate geometry to six equivalent Sr(1), four equivalent Ca(1), and four equivalent Nb(1) atoms.