The crystal structure described by Sm6Cu8P8O3 crystallizes in the orthorhombic C222 space group. There are two inequivalent Sm sites. In the first Sm site, Sm(1) is bonded in a 3-coordinate geometry to four equivalent P(1), one O(1), one O(2), and one O(3) atom. In the second Sm site, Sm(2) is bonded in a 16-coordinate geometry to two equivalent Cu(1), two equivalent Cu(2), two equivalent Cu(3), two equivalent Cu(4), and eight equivalent P(2) atoms. There are four inequivalent Cu sites. In the first Cu site, Cu(1) is bonded to two equivalent Sm(2), two equivalent P(1), and two equivalent P(2) atoms to form a mixture of distorted edge, corner, and face-sharing CuSm2P4 tetrahedra. In the second Cu site, Cu(2) is bonded to two equivalent Sm(2), two equivalent P(1), and two equivalent P(2) atoms to form a mixture of distorted edge, corner, and face-sharing CuSm2P4 tetrahedra. In the third Cu site, Cu(3) is bonded to two equivalent Sm(2), two equivalent P(1), and two equivalent P(2) atoms to form a mixture of distorted edge, corner, and face-sharing CuSm2P4 tetrahedra. In the fourth Cu site, Cu(4) is bonded to two equivalent Sm(2), two equivalent P(1), and two equivalent P(2) atoms to form a mixture of distorted edge, corner, and face-sharing CuSm2P4 tetrahedra. There are two inequivalent P sites. In the first P site, P(2) is bonded in a 9-coordinate geometry to four equivalent Sm(2), one Cu(1), one Cu(2), one Cu(3), one Cu(4), and one P(2) atom. In the second P site, P(1) is bonded in a 8-coordinate geometry to four equivalent Sm(1), one Cu(1), one Cu(2), one Cu(3), and one Cu(4) atom. There are three inequivalent O sites. In the first O site, O(1) is bonded to four equivalent Sm(1) atoms to form edge-sharing OSm4 tetrahedra. In the second O site, O(2) is bonded to four equivalent Sm(1) atoms to form a mixture of edge and corner-sharing OSm4 tetrahedra. In the third O site, O(3) is bonded to four equivalent Sm(1) atoms to form a mixture of edge and corner-sharing OSm4 tetrahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_Sm6Cu8P8O3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   13.431
_cell_length_b   13.431
_cell_length_c   5.557
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   156.146
_symmetry_Int_Tables_number   1
_cell_volume   405.373
_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  0.314  0.217  0.734  1.0
  Sm  Sm1  1  0.783  0.686  0.266  1.0
  Sm  Sm2  1  0.217  0.314  0.266  1.0
  Sm  Sm3  1  0.686  0.783  0.734  1.0
  Sm  Sm4  1  0.500  0.000  0.250  1.0
  Sm  Sm5  1  0.000  0.500  0.750  1.0
  Cu  Cu6  1  0.346  0.654  0.500  1.0
  Cu  Cu7  1  0.845  0.155  0.000  1.0
  Cu  Cu8  1  0.846  0.154  0.500  1.0
  Cu  Cu9  1  0.346  0.654  0.000  1.0
  Cu  Cu10  1  0.154  0.846  0.500  1.0
  Cu  Cu11  1  0.654  0.346  0.000  1.0
  Cu  Cu12  1  0.654  0.346  0.500  1.0
  Cu  Cu13  1  0.155  0.845  0.000  1.0
  P  P14  1  0.141  0.349  0.755  1.0
  P  P15  1  0.651  0.859  0.245  1.0
  P  P16  1  0.349  0.141  0.245  1.0
  P  P17  1  0.859  0.651  0.755  1.0
  P  P18  1  0.457  0.044  0.749  1.0
  P  P19  1  0.956  0.543  0.251  1.0
  P  P20  1  0.044  0.457  0.251  1.0
  P  P21  1  0.543  0.956  0.749  1.0
  O  O22  1  0.500  0.500  0.500  1.0
  O  O23  1  0.500  0.500  0.000  1.0
  O  O24  1  0.000  0.000  0.500  1.0
[/CIF]
.
The crystal structure described by Sm6Cu8P8O3 crystallizes in the orthorhombic C222 space group. There are two inequivalent Sm sites. In the first Sm site, Sm(1) is bonded in a 3-coordinate geometry to four equivalent P(1), one O(1), one O(2), and one O(3) atom. In the second Sm site, Sm(2) is bonded in a 16-coordinate geometry to two equivalent Cu(1), two equivalent Cu(2), two equivalent Cu(3), two equivalent Cu(4), and eight equivalent P(2) atoms. There are four inequivalent Cu sites. In the first Cu site, Cu(1) is bonded to two equivalent Sm(2), two equivalent P(1), and two equivalent P(2) atoms to form a mixture of distorted edge, corner, and face-sharing CuSm2P4 tetrahedra. In the second Cu site, Cu(2) is bonded to two equivalent Sm(2), two equivalent P(1), and two equivalent P(2) atoms to form a mixture of distorted edge, corner, and face-sharing CuSm2P4 tetrahedra. In the third Cu site, Cu(3) is bonded to two equivalent Sm(2), two equivalent P(1), and two equivalent P(2) atoms to form a mixture of distorted edge, corner, and face-sharing CuSm2P4 tetrahedra. In the fourth Cu site, Cu(4) is bonded to two equivalent Sm(2), two equivalent P(1), and two equivalent P(2) atoms to form a mixture of distorted edge, corner, and face-sharing CuSm2P4 tetrahedra. There are two inequivalent P sites. In the first P site, P(2) is bonded in a 9-coordinate geometry to four equivalent Sm(2), one Cu(1), one Cu(2), one Cu(3), one Cu(4), and one P(2) atom. In the second P site, P(1) is bonded in a 8-coordinate geometry to four equivalent Sm(1), one Cu(1), one Cu(2), one Cu(3), and one Cu(4) atom. There are three inequivalent O sites. In the first O site, O(1) is bonded to four equivalent Sm(1) atoms to form edge-sharing OSm4 tetrahedra. In the second O site, O(2) is bonded to four equivalent Sm(1) atoms to form a mixture of edge and corner-sharing OSm4 tetrahedra. In the third O site, O(3) is bonded to four equivalent Sm(1) atoms to form a mixture of edge and corner-sharing OSm4 tetrahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_Sm6Cu8P8O3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   13.431
_cell_length_b   13.431
_cell_length_c   5.557
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   156.146
_symmetry_Int_Tables_number   1
_cell_volume   405.373
_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  0.314  0.217  0.734  1.0
  Sm  Sm1  1  0.783  0.686  0.266  1.0
  Sm  Sm2  1  0.217  0.314  0.266  1.0
  Sm  Sm3  1  0.686  0.783  0.734  1.0
  Sm  Sm4  1  0.500  0.000  0.250  1.0
  Sm  Sm5  1  0.000  0.500  0.750  1.0
  Cu  Cu6  1  0.346  0.654  0.500  1.0
  Cu  Cu7  1  0.845  0.155  0.000  1.0
  Cu  Cu8  1  0.846  0.154  0.500  1.0
  Cu  Cu9  1  0.346  0.654  0.000  1.0
  Cu  Cu10  1  0.154  0.846  0.500  1.0
  Cu  Cu11  1  0.654  0.346  0.000  1.0
  Cu  Cu12  1  0.654  0.346  0.500  1.0
  Cu  Cu13  1  0.155  0.845  0.000  1.0
  P  P14  1  0.141  0.349  0.755  1.0
  P  P15  1  0.651  0.859  0.245  1.0
  P  P16  1  0.349  0.141  0.245  1.0
  P  P17  1  0.859  0.651  0.755  1.0
  P  P18  1  0.457  0.044  0.749  1.0
  P  P19  1  0.956  0.543  0.251  1.0
  P  P20  1  0.044  0.457  0.251  1.0
  P  P21  1  0.543  0.956  0.749  1.0
  O  O22  1  0.500  0.500  0.500  1.0
  O  O23  1  0.500  0.500  0.000  1.0
  O  O24  1  0.000  0.000  0.500  1.0
[/CIF]
.