The material described by Sr2SnFeO6 is (Cubic) Perovskite-derived structured and crystallizes in the orthorhombic Cmcm space group. There are two inequivalent Sr sites. In the first Sr site, Sr(1) is bonded to two equivalent O(1), two equivalent O(2), two equivalent O(3), two equivalent O(4), two equivalent O(5), and two equivalent O(7) atoms to form SrO12 cuboctahedra that share corners with four equivalent Sr(1)O12 cuboctahedra; corners with eight equivalent Sr(2)O12 cuboctahedra; faces with two equivalent Sr(2)O12 cuboctahedra; faces with four equivalent Sr(1)O12 cuboctahedra; faces with two equivalent Fe(1)O6 octahedra; faces with two equivalent Fe(2)O6 octahedra; faces with two Sn(1,1)O6 octahedra; and faces with two equivalent Sn(2)O6 octahedra. In the second Sr site, Sr(2) is bonded to two equivalent O(1); two equivalent O(2); two equivalent O(3); two equivalent O(4); two O(6,6); and two equivalent O(8) atoms to form SrO12 cuboctahedra that share corners with four equivalent Sr(2)O12 cuboctahedra, corners with eight equivalent Sr(1)O12 cuboctahedra, faces with two equivalent Sr(1)O12 cuboctahedra, faces with four equivalent Sr(2)O12 cuboctahedra, faces with two equivalent Fe(1)O6 octahedra, faces with two equivalent Fe(2)O6 octahedra, faces with two equivalent Sn(1)O6 octahedra, and faces with two equivalent Sn(2)O6 octahedra. There are two inequivalent Fe sites. In the first Fe site, Fe(1) is bonded to one O(6), one O(7), two equivalent O(2), and two equivalent O(4) atoms to form FeO6 octahedra that share  a cornercorner with one Sn(1)O6 octahedra, corners with two equivalent Fe(2)O6 octahedra, corners with three equivalent Sn(2)O6 octahedra, faces with four equivalent Sr(1)O12 cuboctahedra, and faces with four equivalent Sr(2)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 0-1°. In the second Fe site, Fe(2) is bonded to one O(5), one O(8), two equivalent O(2), and two equivalent O(3) atoms to form FeO6 octahedra that share  a cornercorner with one Sn(2)O6 octahedra; corners with two equivalent Fe(1)O6 octahedra; corners with three Sn(1,1)O6 octahedra; faces with four equivalent Sr(1)O12 cuboctahedra; and faces with four equivalent Sr(2)O12 cuboctahedra. The corner-sharing octahedra are not tilted. There are three inequivalent Sn sites. In the first Sn site, Sn(1) is bonded to one O(5), one O(6), two equivalent O(1), and two equivalent O(3) atoms to form SnO6 octahedra that share  a cornercorner with one Fe(1)O6 octahedra, corners with two equivalent Sn(2)O6 octahedra, corners with three equivalent Fe(2)O6 octahedra, faces with four equivalent Sr(1)O12 cuboctahedra, and faces with four equivalent Sr(2)O12 cuboctahedra. The corner-sharing octahedra are not tilted. In the second Sn site, Sn(1) is bonded to one O(5), one O(6), two equivalent O(1), and two equivalent O(3) atoms to form SnO6 octahedra that share  a cornercorner with one Fe(1)O6 octahedra, corners with two equivalent Sn(2)O6 octahedra, corners with three equivalent Fe(2)O6 octahedra, faces with four equivalent Sr(1)O12 cuboctahedra, and faces with four equivalent Sr(2)O12 cuboctahedra. The corner-sharing octahedra are not tilted. In the third Sn site, Sn(2) is bonded to one O(7), one O(8), two equivalent O(1), and two equivalent O(4) atoms to form SnO6 octahedra that share  a cornercorner with one Fe(2)O6 octahedra, corners with two equivalent Sn(1)O6 octahedra, corners with three equivalent Fe(1)O6 octahedra, faces with four equivalent Sr(1)O12 cuboctahedra, and faces with four equivalent Sr(2)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 0-1°. There are eleven inequivalent O sites. In the first O site, O(1) is bonded to two equivalent Sr(1), two equivalent Sr(2), one Sn(1), and one Sn(2) atom to form distorted OSr4Sn2 octahedra that share corners with two equivalent O(7)Sr4FeSn octahedra, corners with two equivalent O(8)Sr4FeSn octahedra, corners with six equivalent O(1)Sr4Sn2 octahedra, edges with four equivalent O(2)Sr4Fe2 octahedra,  a faceface with one O(7)Sr4FeSn octahedra, and  a faceface with one O(8)Sr4FeSn octahedra. The corner-sharing octahedral tilt angles range from 0-61°. In the second O site, O(2) is bonded to two equivalent Sr(1), two equivalent Sr(2), one Fe(1), and one Fe(2) atom to form distorted OSr4Fe2 octahedra that share corners with two equivalent O(7)Sr4FeSn octahedra, corners with two equivalent O(8)Sr4FeSn octahedra, corners with six equivalent O(2)Sr4Fe2 octahedra, edges with four equivalent O(1)Sr4Sn2 octahedra,  a faceface with one O(7)Sr4FeSn octahedra, and  a faceface with one O(8)Sr4FeSn octahedra. The corner-sharing octahedral tilt angles range from 0-61°. In the third O site, O(3) is bonded in a distorted linear geometry to two equivalent Sr(1), two equivalent Sr(2), one Fe(2), and one Sn(1) atom. In the fourth O site, O(4) is bonded in a distorted linear geometry to two equivalent Sr(1), two equivalent Sr(2), one Fe(1), and one Sn(2) atom. In the fifth O site, O(8) is bonded to four equivalent Sr(2), one Fe(2), and one Sn(2) atom to form distorted OSr4FeSn octahedra that share  a cornercorner with one O(7)Sr4FeSn octahedra, corners with four equivalent O(2)Sr4Fe2 octahedra, corners with four equivalent O(8)Sr4FeSn octahedra, corners with four equivalent O(1)Sr4Sn2 octahedra, faces with two equivalent O(2)Sr4Fe2 octahedra, and faces with two equivalent O(1)Sr4Sn2 octahedra. The corner-sharing octahedral tilt angles range from 0-61°. In the sixth O site, O(5) is bonded in a distorted linear geometry to four equivalent Sr(1), one Fe(2), and one Sn(1) atom. In the seventh O site, O(6) is bonded in a distorted linear geometry to four equivalent Sr(2), one Fe(1), and one Sn(1) atom. In the eighth O site, O(7) is bonded to four equivalent Sr(1), one Fe(1), and one Sn(2) atom to form distorted OSr4FeSn octahedra that share  a cornercorner with one O(8)Sr4FeSn octahedra, corners with four equivalent O(2)Sr4Fe2 octahedra, corners with four equivalent O(1)Sr4Sn2 octahedra, edges with two equivalent O(7)Sr4FeSn octahedra, faces with two equivalent O(2)Sr4Fe2 octahedra, and faces with two equivalent O(1)Sr4Sn2 octahedra. The corner-sharing octahedral tilt angles range from 0-61°. In the ninth O site, O(8) is bonded to four equivalent Sr(2), one Fe(2), and one Sn(2) atom to form distorted OSr4FeSn octahedra that share  a cornercorner with one O(7)Sr4FeSn octahedra, corners with four equivalent O(2)Sr4Fe2 octahedra, corners with four equivalent O(8)Sr4FeSn octahedra, corners with four equivalent O(1)Sr4Sn2 octahedra, faces with two equivalent O(2)Sr4Fe2 octahedra, and faces with two equivalent O(1)Sr4Sn2 octahedra. The corner-sharing octahedral tilt angles range from 0-61°. In the tenth O site, O(8) is bonded to four equivalent Sr(2), one Fe(2), and one Sn(2) atom to form distorted OSr4FeSn octahedra that share  a cornercorner with one O(7)Sr4FeSn octahedra, corners with four equivalent O(2)Sr4Fe2 octahedra, corners with four equivalent O(8)Sr4FeSn octahedra, corners with four equivalent O(1)Sr4Sn2 octahedra, faces with two equivalent O(2)Sr4Fe2 octahedra, and faces with two equivalent O(1)Sr4Sn2 octahedra. The corner-sharing octahedral tilt angles range from 0-61°. In the eleventh O site, O(6) is bonded in a distorted linear geometry to four equivalent Sr(2), one Fe(1), and one Sn(1) atom. is represented by the CIF file [CIF]
data_Sr2FeSnO6
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.074
_cell_length_b   5.700
_cell_length_c   5.700
_cell_angle_alpha   90.021
_cell_angle_beta   89.967
_cell_angle_gamma   90.026
_symmetry_Int_Tables_number   1
_cell_volume   132.364
_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
  Fe  Fe0  1  0.500  0.000  0.500  1.0
  O  O1  1  0.000  0.500  0.000  1.0
  O  O2  1  1.000  1.000  0.500  1.0
  O  O3  1  0.500  0.245  0.745  1.0
  O  O4  1  0.500  0.755  0.255  1.0
  O  O5  1  0.500  0.245  0.255  1.0
  O  O6  1  0.500  0.755  0.745  1.0
  Sn  Sn7  1  0.500  0.500  0.000  1.0
  Sr  Sr8  1  0.000  1.000  1.000  1.0
  Sr  Sr9  1  0.000  0.500  0.500  1.0
[/CIF]
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The material described by Sr2SnFeO6 is (Cubic) Perovskite-derived structured and crystallizes in the orthorhombic Cmcm space group. There are two inequivalent Sr sites. In the first Sr site, Sr(1) is bonded to two equivalent O(1), two equivalent O(2), two equivalent O(3), two equivalent O(4), two equivalent O(5), and two equivalent O(7) atoms to form SrO12 cuboctahedra that share corners with four equivalent Sr(1)O12 cuboctahedra; corners with eight equivalent Sr(2)O12 cuboctahedra; faces with two equivalent Sr(2)O12 cuboctahedra; faces with four equivalent Sr(1)O12 cuboctahedra; faces with two equivalent Fe(1)O6 octahedra; faces with two equivalent Fe(2)O6 octahedra; faces with two Sn(1,1)O6 octahedra; and faces with two equivalent Sn(2)O6 octahedra. In the second Sr site, Sr(2) is bonded to two equivalent O(1); two equivalent O(2); two equivalent O(3); two equivalent O(4); two O(6,6); and two equivalent O(8) atoms to form SrO12 cuboctahedra that share corners with four equivalent Sr(2)O12 cuboctahedra, corners with eight equivalent Sr(1)O12 cuboctahedra, faces with two equivalent Sr(1)O12 cuboctahedra, faces with four equivalent Sr(2)O12 cuboctahedra, faces with two equivalent Fe(1)O6 octahedra, faces with two equivalent Fe(2)O6 octahedra, faces with two equivalent Sn(1)O6 octahedra, and faces with two equivalent Sn(2)O6 octahedra. There are two inequivalent Fe sites. In the first Fe site, Fe(1) is bonded to one O(6), one O(7), two equivalent O(2), and two equivalent O(4) atoms to form FeO6 octahedra that share  a cornercorner with one Sn(1)O6 octahedra, corners with two equivalent Fe(2)O6 octahedra, corners with three equivalent Sn(2)O6 octahedra, faces with four equivalent Sr(1)O12 cuboctahedra, and faces with four equivalent Sr(2)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 0-1°. In the second Fe site, Fe(2) is bonded to one O(5), one O(8), two equivalent O(2), and two equivalent O(3) atoms to form FeO6 octahedra that share  a cornercorner with one Sn(2)O6 octahedra; corners with two equivalent Fe(1)O6 octahedra; corners with three Sn(1,1)O6 octahedra; faces with four equivalent Sr(1)O12 cuboctahedra; and faces with four equivalent Sr(2)O12 cuboctahedra. The corner-sharing octahedra are not tilted. There are three inequivalent Sn sites. In the first Sn site, Sn(1) is bonded to one O(5), one O(6), two equivalent O(1), and two equivalent O(3) atoms to form SnO6 octahedra that share  a cornercorner with one Fe(1)O6 octahedra, corners with two equivalent Sn(2)O6 octahedra, corners with three equivalent Fe(2)O6 octahedra, faces with four equivalent Sr(1)O12 cuboctahedra, and faces with four equivalent Sr(2)O12 cuboctahedra. The corner-sharing octahedra are not tilted. In the second Sn site, Sn(1) is bonded to one O(5), one O(6), two equivalent O(1), and two equivalent O(3) atoms to form SnO6 octahedra that share  a cornercorner with one Fe(1)O6 octahedra, corners with two equivalent Sn(2)O6 octahedra, corners with three equivalent Fe(2)O6 octahedra, faces with four equivalent Sr(1)O12 cuboctahedra, and faces with four equivalent Sr(2)O12 cuboctahedra. The corner-sharing octahedra are not tilted. In the third Sn site, Sn(2) is bonded to one O(7), one O(8), two equivalent O(1), and two equivalent O(4) atoms to form SnO6 octahedra that share  a cornercorner with one Fe(2)O6 octahedra, corners with two equivalent Sn(1)O6 octahedra, corners with three equivalent Fe(1)O6 octahedra, faces with four equivalent Sr(1)O12 cuboctahedra, and faces with four equivalent Sr(2)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 0-1°. There are eleven inequivalent O sites. In the first O site, O(1) is bonded to two equivalent Sr(1), two equivalent Sr(2), one Sn(1), and one Sn(2) atom to form distorted OSr4Sn2 octahedra that share corners with two equivalent O(7)Sr4FeSn octahedra, corners with two equivalent O(8)Sr4FeSn octahedra, corners with six equivalent O(1)Sr4Sn2 octahedra, edges with four equivalent O(2)Sr4Fe2 octahedra,  a faceface with one O(7)Sr4FeSn octahedra, and  a faceface with one O(8)Sr4FeSn octahedra. The corner-sharing octahedral tilt angles range from 0-61°. In the second O site, O(2) is bonded to two equivalent Sr(1), two equivalent Sr(2), one Fe(1), and one Fe(2) atom to form distorted OSr4Fe2 octahedra that share corners with two equivalent O(7)Sr4FeSn octahedra, corners with two equivalent O(8)Sr4FeSn octahedra, corners with six equivalent O(2)Sr4Fe2 octahedra, edges with four equivalent O(1)Sr4Sn2 octahedra,  a faceface with one O(7)Sr4FeSn octahedra, and  a faceface with one O(8)Sr4FeSn octahedra. The corner-sharing octahedral tilt angles range from 0-61°. In the third O site, O(3) is bonded in a distorted linear geometry to two equivalent Sr(1), two equivalent Sr(2), one Fe(2), and one Sn(1) atom. In the fourth O site, O(4) is bonded in a distorted linear geometry to two equivalent Sr(1), two equivalent Sr(2), one Fe(1), and one Sn(2) atom. In the fifth O site, O(8) is bonded to four equivalent Sr(2), one Fe(2), and one Sn(2) atom to form distorted OSr4FeSn octahedra that share  a cornercorner with one O(7)Sr4FeSn octahedra, corners with four equivalent O(2)Sr4Fe2 octahedra, corners with four equivalent O(8)Sr4FeSn octahedra, corners with four equivalent O(1)Sr4Sn2 octahedra, faces with two equivalent O(2)Sr4Fe2 octahedra, and faces with two equivalent O(1)Sr4Sn2 octahedra. The corner-sharing octahedral tilt angles range from 0-61°. In the sixth O site, O(5) is bonded in a distorted linear geometry to four equivalent Sr(1), one Fe(2), and one Sn(1) atom. In the seventh O site, O(6) is bonded in a distorted linear geometry to four equivalent Sr(2), one Fe(1), and one Sn(1) atom. In the eighth O site, O(7) is bonded to four equivalent Sr(1), one Fe(1), and one Sn(2) atom to form distorted OSr4FeSn octahedra that share  a cornercorner with one O(8)Sr4FeSn octahedra, corners with four equivalent O(2)Sr4Fe2 octahedra, corners with four equivalent O(1)Sr4Sn2 octahedra, edges with two equivalent O(7)Sr4FeSn octahedra, faces with two equivalent O(2)Sr4Fe2 octahedra, and faces with two equivalent O(1)Sr4Sn2 octahedra. The corner-sharing octahedral tilt angles range from 0-61°. In the ninth O site, O(8) is bonded to four equivalent Sr(2), one Fe(2), and one Sn(2) atom to form distorted OSr4FeSn octahedra that share  a cornercorner with one O(7)Sr4FeSn octahedra, corners with four equivalent O(2)Sr4Fe2 octahedra, corners with four equivalent O(8)Sr4FeSn octahedra, corners with four equivalent O(1)Sr4Sn2 octahedra, faces with two equivalent O(2)Sr4Fe2 octahedra, and faces with two equivalent O(1)Sr4Sn2 octahedra. The corner-sharing octahedral tilt angles range from 0-61°. In the tenth O site, O(8) is bonded to four equivalent Sr(2), one Fe(2), and one Sn(2) atom to form distorted OSr4FeSn octahedra that share  a cornercorner with one O(7)Sr4FeSn octahedra, corners with four equivalent O(2)Sr4Fe2 octahedra, corners with four equivalent O(8)Sr4FeSn octahedra, corners with four equivalent O(1)Sr4Sn2 octahedra, faces with two equivalent O(2)Sr4Fe2 octahedra, and faces with two equivalent O(1)Sr4Sn2 octahedra. The corner-sharing octahedral tilt angles range from 0-61°. In the eleventh O site, O(6) is bonded in a distorted linear geometry to four equivalent Sr(2), one Fe(1), and one Sn(1) atom. is represented by the CIF file [CIF]
data_Sr2FeSnO6
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.074
_cell_length_b   5.700
_cell_length_c   5.700
_cell_angle_alpha   90.021
_cell_angle_beta   89.967
_cell_angle_gamma   90.026
_symmetry_Int_Tables_number   1
_cell_volume   132.364
_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
  Fe  Fe0  1  0.500  0.000  0.500  1.0
  O  O1  1  0.000  0.500  0.000  1.0
  O  O2  1  1.000  1.000  0.500  1.0
  O  O3  1  0.500  0.245  0.745  1.0
  O  O4  1  0.500  0.755  0.255  1.0
  O  O5  1  0.500  0.245  0.255  1.0
  O  O6  1  0.500  0.755  0.745  1.0
  Sn  Sn7  1  0.500  0.500  0.000  1.0
  Sr  Sr8  1  0.000  1.000  1.000  1.0
  Sr  Sr9  1  0.000  0.500  0.500  1.0
[/CIF]
.