The material structure described by NpPa3 crystallizes in the hexagonal P6_3/mmc space group. Np(1) is bonded to twelve equivalent Pa(1) atoms to form NpPa12 cuboctahedra that share corners with six equivalent Np(1)Pa12 cuboctahedra, corners with twelve equivalent Pa(1)Np4Pa8 cuboctahedra, edges with eighteen equivalent Pa(1)Np4Pa8 cuboctahedra, faces with eight equivalent Np(1)Pa12 cuboctahedra, and faces with twelve equivalent Pa(1)Np4Pa8 cuboctahedra. Pa(1) is bonded to four equivalent Np(1) and eight equivalent Pa(1) atoms to form distorted PaNp4Pa8 cuboctahedra that share corners with four equivalent Np(1)Pa12 cuboctahedra, corners with fourteen equivalent Pa(1)Np4Pa8 cuboctahedra, edges with six equivalent Np(1)Pa12 cuboctahedra, edges with twelve equivalent Pa(1)Np4Pa8 cuboctahedra, faces with four equivalent Np(1)Pa12 cuboctahedra, and faces with sixteen equivalent Pa(1)Np4Pa8 cuboctahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_NpPa3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.186
_cell_length_b   6.186
_cell_length_c   5.603
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   185.687
_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
  Np  Np0  1  0.333  0.667  0.750  1.0
  Np  Np1  1  0.667  0.333  0.250  1.0
  Pa  Pa2  1  0.832  0.168  0.750  1.0
  Pa  Pa3  1  0.335  0.168  0.750  1.0
  Pa  Pa4  1  0.832  0.665  0.750  1.0
  Pa  Pa5  1  0.168  0.832  0.250  1.0
  Pa  Pa6  1  0.168  0.335  0.250  1.0
  Pa  Pa7  1  0.665  0.832  0.250  1.0
[/CIF]
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The material structure described by NpPa3 crystallizes in the hexagonal P6_3/mmc space group. Np(1) is bonded to twelve equivalent Pa(1) atoms to form NpPa12 cuboctahedra that share corners with six equivalent Np(1)Pa12 cuboctahedra, corners with twelve equivalent Pa(1)Np4Pa8 cuboctahedra, edges with eighteen equivalent Pa(1)Np4Pa8 cuboctahedra, faces with eight equivalent Np(1)Pa12 cuboctahedra, and faces with twelve equivalent Pa(1)Np4Pa8 cuboctahedra. Pa(1) is bonded to four equivalent Np(1) and eight equivalent Pa(1) atoms to form distorted PaNp4Pa8 cuboctahedra that share corners with four equivalent Np(1)Pa12 cuboctahedra, corners with fourteen equivalent Pa(1)Np4Pa8 cuboctahedra, edges with six equivalent Np(1)Pa12 cuboctahedra, edges with twelve equivalent Pa(1)Np4Pa8 cuboctahedra, faces with four equivalent Np(1)Pa12 cuboctahedra, and faces with sixteen equivalent Pa(1)Np4Pa8 cuboctahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_NpPa3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.186
_cell_length_b   6.186
_cell_length_c   5.603
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   185.687
_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
  Np  Np0  1  0.333  0.667  0.750  1.0
  Np  Np1  1  0.667  0.333  0.250  1.0
  Pa  Pa2  1  0.832  0.168  0.750  1.0
  Pa  Pa3  1  0.335  0.168  0.750  1.0
  Pa  Pa4  1  0.832  0.665  0.750  1.0
  Pa  Pa5  1  0.168  0.832  0.250  1.0
  Pa  Pa6  1  0.168  0.335  0.250  1.0
  Pa  Pa7  1  0.665  0.832  0.250  1.0
[/CIF]
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