The crystal structure described by SmP5 crystallizes in the monoclinic P2_1/m space group. Sm(1) is bonded in a 8-coordinate geometry to two equivalent P(1), two equivalent P(2), and four equivalent P(3) atoms. There are three inequivalent P sites. In the first P site, P(3) is bonded to two equivalent Sm(1), one P(2), and one P(3) atom to form PSm2P2 tetrahedra that share corners with four equivalent P(3)Sm2P2 tetrahedra, corners with five equivalent P(1)Sm2P2 tetrahedra, corners with six equivalent P(2)SmP3 tetrahedra, and  an edgeedge with one P(3)Sm2P2 tetrahedra. In the second P site, P(1) is bonded to two equivalent Sm(1) and two equivalent P(2) atoms to form distorted PSm2P2 tetrahedra that share corners with two equivalent P(1)Sm2P2 tetrahedra, corners with six equivalent P(2)SmP3 tetrahedra, and corners with ten equivalent P(3)Sm2P2 tetrahedra. In the third P site, P(2) is bonded to one Sm(1), one P(1), one P(2), and one P(3) atom to form distorted PSmP3 tetrahedra that share corners with three equivalent P(1)Sm2P2 tetrahedra, corners with six equivalent P(3)Sm2P2 tetrahedra, and  an edgeedge with one P(2)SmP3 tetrahedra. is represented by the CIF card [CIF]
data_SmP5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.019
_cell_length_b   5.419
_cell_length_c   9.504
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   102.204
_symmetry_Int_Tables_number   1
_cell_volume   252.670
_cell_formula_units_Z   2
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  0.007  0.349  0.250  1.0
  Sm  Sm1  1  0.993  0.651  0.750  1.0
  P  P2  1  0.289  0.900  0.250  1.0
  P  P3  1  0.711  0.100  0.750  1.0
  P  P4  1  0.614  0.953  0.409  1.0
  P  P5  1  0.386  0.047  0.909  1.0
  P  P6  1  0.386  0.047  0.591  1.0
  P  P7  1  0.614  0.953  0.091  1.0
  P  P8  1  0.707  0.598  0.470  1.0
  P  P9  1  0.293  0.402  0.970  1.0
  P  P10  1  0.293  0.402  0.530  1.0
  P  P11  1  0.707  0.598  0.030  1.0
[/CIF]
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The crystal structure described by SmP5 crystallizes in the monoclinic P2_1/m space group. Sm(1) is bonded in a 8-coordinate geometry to two equivalent P(1), two equivalent P(2), and four equivalent P(3) atoms. There are three inequivalent P sites. In the first P site, P(3) is bonded to two equivalent Sm(1), one P(2), and one P(3) atom to form PSm2P2 tetrahedra that share corners with four equivalent P(3)Sm2P2 tetrahedra, corners with five equivalent P(1)Sm2P2 tetrahedra, corners with six equivalent P(2)SmP3 tetrahedra, and  an edgeedge with one P(3)Sm2P2 tetrahedra. In the second P site, P(1) is bonded to two equivalent Sm(1) and two equivalent P(2) atoms to form distorted PSm2P2 tetrahedra that share corners with two equivalent P(1)Sm2P2 tetrahedra, corners with six equivalent P(2)SmP3 tetrahedra, and corners with ten equivalent P(3)Sm2P2 tetrahedra. In the third P site, P(2) is bonded to one Sm(1), one P(1), one P(2), and one P(3) atom to form distorted PSmP3 tetrahedra that share corners with three equivalent P(1)Sm2P2 tetrahedra, corners with six equivalent P(3)Sm2P2 tetrahedra, and  an edgeedge with one P(2)SmP3 tetrahedra. is represented by the CIF card [CIF]
data_SmP5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.019
_cell_length_b   5.419
_cell_length_c   9.504
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   102.204
_symmetry_Int_Tables_number   1
_cell_volume   252.670
_cell_formula_units_Z   2
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  0.007  0.349  0.250  1.0
  Sm  Sm1  1  0.993  0.651  0.750  1.0
  P  P2  1  0.289  0.900  0.250  1.0
  P  P3  1  0.711  0.100  0.750  1.0
  P  P4  1  0.614  0.953  0.409  1.0
  P  P5  1  0.386  0.047  0.909  1.0
  P  P6  1  0.386  0.047  0.591  1.0
  P  P7  1  0.614  0.953  0.091  1.0
  P  P8  1  0.707  0.598  0.470  1.0
  P  P9  1  0.293  0.402  0.970  1.0
  P  P10  1  0.293  0.402  0.530  1.0
  P  P11  1  0.707  0.598  0.030  1.0
[/CIF]
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