The material structure described by NpPr3 is Uranium Silicide structured and crystallizes in the cubic Pm-3m space group. Np(1) is bonded to twelve equivalent Pr(1) atoms to form NpPr12 cuboctahedra that share corners with twelve equivalent Np(1)Pr12 cuboctahedra, edges with twenty-four equivalent Pr(1)Pr8Np4 cuboctahedra, faces with six equivalent Np(1)Pr12 cuboctahedra, and faces with twelve equivalent Pr(1)Pr8Np4 cuboctahedra. Pr(1) is bonded to four equivalent Np(1) and eight equivalent Pr(1) atoms to form PrPr8Np4 cuboctahedra that share corners with twelve equivalent Pr(1)Pr8Np4 cuboctahedra, edges with eight equivalent Np(1)Pr12 cuboctahedra, edges with sixteen equivalent Pr(1)Pr8Np4 cuboctahedra, faces with four equivalent Np(1)Pr12 cuboctahedra, and faces with fourteen equivalent Pr(1)Pr8Np4 cuboctahedra. is represented by the CIF card [CIF]
data_Pr3Np
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.143
_cell_length_b   5.143
_cell_length_c   5.143
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   136.029
_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
  Pr  Pr0  1  0.000  0.500  0.500  1.0
  Pr  Pr1  1  0.500  0.000  0.500  1.0
  Pr  Pr2  1  0.500  0.500  0.000  1.0
  Np  Np3  1  0.000  0.000  0.000  1.0
[/CIF]
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The material structure described by NpPr3 is Uranium Silicide structured and crystallizes in the cubic Pm-3m space group. Np(1) is bonded to twelve equivalent Pr(1) atoms to form NpPr12 cuboctahedra that share corners with twelve equivalent Np(1)Pr12 cuboctahedra, edges with twenty-four equivalent Pr(1)Pr8Np4 cuboctahedra, faces with six equivalent Np(1)Pr12 cuboctahedra, and faces with twelve equivalent Pr(1)Pr8Np4 cuboctahedra. Pr(1) is bonded to four equivalent Np(1) and eight equivalent Pr(1) atoms to form PrPr8Np4 cuboctahedra that share corners with twelve equivalent Pr(1)Pr8Np4 cuboctahedra, edges with eight equivalent Np(1)Pr12 cuboctahedra, edges with sixteen equivalent Pr(1)Pr8Np4 cuboctahedra, faces with four equivalent Np(1)Pr12 cuboctahedra, and faces with fourteen equivalent Pr(1)Pr8Np4 cuboctahedra. is represented by the CIF card [CIF]
data_Pr3Np
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.143
_cell_length_b   5.143
_cell_length_c   5.143
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   136.029
_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
  Pr  Pr0  1  0.000  0.500  0.500  1.0
  Pr  Pr1  1  0.500  0.000  0.500  1.0
  Pr  Pr2  1  0.500  0.500  0.000  1.0
  Np  Np3  1  0.000  0.000  0.000  1.0
[/CIF]
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