The structure described by Sm4Fe3Co(AsO)4 crystallizes in the tetragonal P-4m2 space group. There are four inequivalent Sm sites. In the first Sm site, Sm(1) is bonded in a 4-coordinate geometry to four equivalent As(1), two equivalent O(1), and two equivalent O(2) atoms. In the second Sm site, Sm(2) is bonded in a 4-coordinate geometry to four equivalent As(2), two equivalent O(1), and two equivalent O(2) atoms. In the third Sm site, Sm(1) is bonded in a 4-coordinate geometry to four equivalent As(1), two equivalent O(1), and two equivalent O(2) atoms. In the fourth Sm site, Sm(2) is bonded in a 4-coordinate geometry to four equivalent As(2), two equivalent O(1), and two equivalent O(2) atoms. There are two inequivalent Fe sites. In the first Fe site, Fe(1,3) is bonded to four equivalent As(2) atoms to form a mixture of distorted corner and edge-sharing FeAs4 tetrahedra. In the second Fe site, Fe(2) is bonded to four equivalent As(1) atoms to form distorted corner-sharing FeAs4 tetrahedra. Co(1) is bonded in a 4-coordinate geometry to four equivalent As(1) atoms. There are two inequivalent As sites. In the first As site, As(1) is bonded in a 8-coordinate geometry to four equivalent Sm(1), two equivalent Fe(2), and two equivalent Co(1) atoms. In the second As site, As(2) is bonded in a 8-coordinate geometry to four equivalent Sm(2) and four equivalent Fe(1,3) atoms. There are two inequivalent O sites. In the first O site, O(1) is bonded to two equivalent Sm(1) and two equivalent Sm(2) atoms to form a mixture of corner and edge-sharing OSm4 tetrahedra. In the second O site, O(2) is bonded to two equivalent Sm(1) and two equivalent Sm(2) atoms to form a mixture of corner and edge-sharing OSm4 tetrahedra. is represented by the CIF file [CIF]
data_Sm4Fe3Co(AsO)4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.012
_cell_length_b   4.012
_cell_length_c   18.338
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   295.201
_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
  Sm  Sm0  1  0.500  0.000  0.186  1.0
  Sm  Sm1  1  0.500  0.000  0.689  1.0
  Sm  Sm2  1  0.000  0.500  0.814  1.0
  Sm  Sm3  1  0.000  0.500  0.311  1.0
  Fe  Fe4  1  0.500  0.500  0.500  1.0
  Fe  Fe5  1  0.000  0.000  0.000  1.0
  Fe  Fe6  1  0.000  0.000  0.500  1.0
  Co  Co7  1  0.500  0.500  0.000  1.0
  As  As8  1  0.500  0.000  0.912  1.0
  As  As9  1  0.500  0.000  0.409  1.0
  As  As10  1  0.000  0.500  0.088  1.0
  As  As11  1  0.000  0.500  0.591  1.0
  O  O12  1  0.500  0.500  0.751  1.0
  O  O13  1  0.500  0.500  0.249  1.0
  O  O14  1  0.000  0.000  0.751  1.0
  O  O15  1  0.000  0.000  0.249  1.0
[/CIF]
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The structure described by Sm4Fe3Co(AsO)4 crystallizes in the tetragonal P-4m2 space group. There are four inequivalent Sm sites. In the first Sm site, Sm(1) is bonded in a 4-coordinate geometry to four equivalent As(1), two equivalent O(1), and two equivalent O(2) atoms. In the second Sm site, Sm(2) is bonded in a 4-coordinate geometry to four equivalent As(2), two equivalent O(1), and two equivalent O(2) atoms. In the third Sm site, Sm(1) is bonded in a 4-coordinate geometry to four equivalent As(1), two equivalent O(1), and two equivalent O(2) atoms. In the fourth Sm site, Sm(2) is bonded in a 4-coordinate geometry to four equivalent As(2), two equivalent O(1), and two equivalent O(2) atoms. There are two inequivalent Fe sites. In the first Fe site, Fe(1,3) is bonded to four equivalent As(2) atoms to form a mixture of distorted corner and edge-sharing FeAs4 tetrahedra. In the second Fe site, Fe(2) is bonded to four equivalent As(1) atoms to form distorted corner-sharing FeAs4 tetrahedra. Co(1) is bonded in a 4-coordinate geometry to four equivalent As(1) atoms. There are two inequivalent As sites. In the first As site, As(1) is bonded in a 8-coordinate geometry to four equivalent Sm(1), two equivalent Fe(2), and two equivalent Co(1) atoms. In the second As site, As(2) is bonded in a 8-coordinate geometry to four equivalent Sm(2) and four equivalent Fe(1,3) atoms. There are two inequivalent O sites. In the first O site, O(1) is bonded to two equivalent Sm(1) and two equivalent Sm(2) atoms to form a mixture of corner and edge-sharing OSm4 tetrahedra. In the second O site, O(2) is bonded to two equivalent Sm(1) and two equivalent Sm(2) atoms to form a mixture of corner and edge-sharing OSm4 tetrahedra. is represented by the CIF file [CIF]
data_Sm4Fe3Co(AsO)4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.012
_cell_length_b   4.012
_cell_length_c   18.338
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   295.201
_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
  Sm  Sm0  1  0.500  0.000  0.186  1.0
  Sm  Sm1  1  0.500  0.000  0.689  1.0
  Sm  Sm2  1  0.000  0.500  0.814  1.0
  Sm  Sm3  1  0.000  0.500  0.311  1.0
  Fe  Fe4  1  0.500  0.500  0.500  1.0
  Fe  Fe5  1  0.000  0.000  0.000  1.0
  Fe  Fe6  1  0.000  0.000  0.500  1.0
  Co  Co7  1  0.500  0.500  0.000  1.0
  As  As8  1  0.500  0.000  0.912  1.0
  As  As9  1  0.500  0.000  0.409  1.0
  As  As10  1  0.000  0.500  0.088  1.0
  As  As11  1  0.000  0.500  0.591  1.0
  O  O12  1  0.500  0.500  0.751  1.0
  O  O13  1  0.500  0.500  0.249  1.0
  O  O14  1  0.000  0.000  0.751  1.0
  O  O15  1  0.000  0.000  0.249  1.0
[/CIF]
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