data_Sr2LaRh
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.66
_cell_length_b   3.66
_cell_length_c   10.25
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Sr2LaRh
_chemical_formula_sum   'Sr2 La1 Rh1'
_cell_volume   137.03
_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  0.83  0.83  0.78  1.0
  Sr  Sr3  1  0.83  0.83  0.47  1.0
  La  La0  1  0.0  0.0  0.12  1.0
  Rh  Rh1  1  0.0  0.0  0.0  1.0

data_Sr2LaRh
_symmetry_space_group_name_H-M   Cm
_cell_length_a   5.17
_cell_length_b   5.17
_cell_length_c   10.25
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   Sr2LaRh
_chemical_formula_sum   'Sr4 La2 Rh2'
_cell_volume   274.06
_cell_formula_units_Z   2
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  'x, -y, z'
  3  'x+1/2, y+1/2, z'
  4  'x+1/2, -y+1/2, 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  2  0.33  0.5  0.47  1.0
  Sr  Sr1  2  0.33  0.5  0.78  1.0
  La  La2  2  0.0  0.0  0.12  1.0
  Rh  Rh3  2  0.0  0.0  0.0  1.0

Sr Sr La Rh
Sr Sr La Rh 0 3 + + + 0 1 o o o 1 1 + o o 1 1 o + o 1 2 + + o 2 3 o o o 
Sr2LaRh crystallizes in the monoclinic Cm space group. There are two inequivalent Sr sites. In the first Sr site, Sr(1) is bonded in a single-bond geometry to one Sr(2) and one Rh(1) atom. The Sr(1)-Sr(2) bond length is 3.13 Å. The Sr(1)-Rh(1) bond length is 2.45 Å. In the second Sr site, Sr(2) is bonded to one Sr(1), four equivalent Sr(2), and one La(1) atom to form a mixture of distorted corner and edge-sharing SrSr5La octahedra. The corner-sharing octahedra are not tilted. All Sr(2)-Sr(2) bond lengths are 3.66 Å. The Sr(2)-La(1) bond length is 3.67 Å. La(1) is bonded in a single-bond geometry to one Sr(2) and one Rh(1) atom. The La(1)-Rh(1) bond length is 1.27 Å. Rh(1) is bonded in a distorted bent 150 degrees geometry to one Sr(1) and one La(1) atom.