The material described by NpCoGa5 crystallizes in the orthorhombic Pmmm space group. Np(1) is bonded to four equivalent Ga(1), four equivalent Ga(2), and four equivalent Ga(3) atoms to form NpGa12 cuboctahedra that share corners with four equivalent Np(1)Ga12 cuboctahedra, faces with four equivalent Np(1)Ga12 cuboctahedra, and faces with four equivalent Ga(3)Np4Ga8 cuboctahedra. Co(1) is bonded in a body-centered cubic geometry to four equivalent Ga(1) and four equivalent Ga(2) atoms. There are three inequivalent Ga sites. In the first Ga site, Ga(1) is bonded in a 11-coordinate geometry to two equivalent Np(1), two equivalent Co(1), one Ga(1), two equivalent Ga(3), and four equivalent Ga(2) atoms. In the second Ga site, Ga(2) is bonded in a 11-coordinate geometry to two equivalent Np(1), two equivalent Co(1), one Ga(2), two equivalent Ga(3), and four equivalent Ga(1) atoms. In the third Ga site, Ga(3) is bonded to four equivalent Np(1), four equivalent Ga(1), and four equivalent Ga(2) atoms to form distorted GaNp4Ga8 cuboctahedra that share corners with four equivalent Ga(3)Np4Ga8 cuboctahedra, faces with four equivalent Np(1)Ga12 cuboctahedra, and faces with four equivalent Ga(3)Np4Ga8 cuboctahedra. is represented by the CIF file [CIF]
data_NpGa5Co
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.191
_cell_length_b   4.211
_cell_length_c   6.823
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   120.402
_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
  Np  Np0  1  0.000  0.000  0.000  1.0
  Ga  Ga1  1  0.000  0.500  0.312  1.0
  Ga  Ga2  1  0.000  0.500  0.688  1.0
  Ga  Ga3  1  0.500  0.000  0.313  1.0
  Ga  Ga4  1  0.500  0.000  0.687  1.0
  Ga  Ga5  1  0.500  0.500  0.000  1.0
  Co  Co6  1  0.000  0.000  0.500  1.0
[/CIF]
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The material described by NpCoGa5 crystallizes in the orthorhombic Pmmm space group. Np(1) is bonded to four equivalent Ga(1), four equivalent Ga(2), and four equivalent Ga(3) atoms to form NpGa12 cuboctahedra that share corners with four equivalent Np(1)Ga12 cuboctahedra, faces with four equivalent Np(1)Ga12 cuboctahedra, and faces with four equivalent Ga(3)Np4Ga8 cuboctahedra. Co(1) is bonded in a body-centered cubic geometry to four equivalent Ga(1) and four equivalent Ga(2) atoms. There are three inequivalent Ga sites. In the first Ga site, Ga(1) is bonded in a 11-coordinate geometry to two equivalent Np(1), two equivalent Co(1), one Ga(1), two equivalent Ga(3), and four equivalent Ga(2) atoms. In the second Ga site, Ga(2) is bonded in a 11-coordinate geometry to two equivalent Np(1), two equivalent Co(1), one Ga(2), two equivalent Ga(3), and four equivalent Ga(1) atoms. In the third Ga site, Ga(3) is bonded to four equivalent Np(1), four equivalent Ga(1), and four equivalent Ga(2) atoms to form distorted GaNp4Ga8 cuboctahedra that share corners with four equivalent Ga(3)Np4Ga8 cuboctahedra, faces with four equivalent Np(1)Ga12 cuboctahedra, and faces with four equivalent Ga(3)Np4Ga8 cuboctahedra. is represented by the CIF file [CIF]
data_NpGa5Co
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.191
_cell_length_b   4.211
_cell_length_c   6.823
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   120.402
_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
  Np  Np0  1  0.000  0.000  0.000  1.0
  Ga  Ga1  1  0.000  0.500  0.312  1.0
  Ga  Ga2  1  0.000  0.500  0.688  1.0
  Ga  Ga3  1  0.500  0.000  0.313  1.0
  Ga  Ga4  1  0.500  0.000  0.687  1.0
  Ga  Ga5  1  0.500  0.500  0.000  1.0
  Co  Co6  1  0.000  0.000  0.500  1.0
[/CIF]
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