data_Sr2ZrSc
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.51
_cell_length_b   3.51
_cell_length_c   10.9
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Sr2ZrSc
_chemical_formula_sum   'Sr2 Zr1 Sc1'
_cell_volume   134.27
_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  Sr1  1  0.75  0.75  0.81  1.0
  Sr  Sr2  1  0.75  0.75  0.1  1.0
  Zr  Zr3  1  0.0  0.0  0.45  1.0
  Sc  Sc0  1  0.0  0.0  0.0  1.0

data_Sr2ZrSc
_symmetry_space_group_name_H-M   Cm
_cell_length_a   4.96
_cell_length_b   4.96
_cell_length_c   10.9
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   Sr2ZrSc
_chemical_formula_sum   'Sr4 Zr2 Sc2'
_cell_volume   268.54
_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  0.25  0.5  0.1  1.0
  Sr  Sr1  2  0.25  0.5  0.81  1.0
  Zr  Zr2  2  0.0  0.0  0.45  1.0
  Sc  Sc3  2  0.0  0.0  0.0  1.0

Sr Sr Zr Sc
Sr2ScZr 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 Sc(1) and one Zr(1) atom. The Sr(1)-Sc(1) bond length is 2.44 Å. The Sr(1)-Zr(1) bond length is 4.05 Å. In the second Sr site, Sr(2) is bonded in a single-bond geometry to one Sc(1) and one Zr(1) atom. The Sr(2)-Sc(1) bond length is 1.61 Å. The Sr(2)-Zr(1) bond length is 4.05 Å. Sc(1) is bonded in a 1-coordinate geometry to one Sr(1) and one Sr(2) atom. Zr(1) is bonded to one Sr(1), one Sr(2), and four equivalent Zr(1) atoms to form a mixture of corner and edge-sharing ZrSr2Zr4 octahedra. The corner-sharing octahedra are not tilted. All Zr(1)-Zr(1) bond lengths are 3.51 Å.