The structure described by Np1.0Mo6Se8 crystallizes in the trigonal R-3 space group. Np(1) is bonded in a body-centered cubic geometry to two equivalent Se(1) and six equivalent Se(2) atoms. Mo(1) is bonded in a 5-coordinate geometry to one Se(1) and four equivalent Se(2) atoms. There are two inequivalent Se sites. In the first Se site, Se(1) is bonded in a 4-coordinate geometry to one Np(1) and three equivalent Mo(1) atoms. In the second Se site, Se(2) is bonded in a 5-coordinate geometry to one Np(1) and four equivalent Mo(1) atoms. is represented by the CIF card [CIF]
data_Np(Mo3Se4)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.781
_cell_length_b   6.781
_cell_length_c   6.781
_cell_angle_alpha   89.064
_cell_angle_beta   89.064
_cell_angle_gamma   89.064
_symmetry_Int_Tables_number   1
_cell_volume   311.680
_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
  Mo  Mo1  1  0.766  0.576  0.440  1.0
  Mo  Mo2  1  0.440  0.766  0.576  1.0
  Mo  Mo3  1  0.576  0.440  0.766  1.0
  Mo  Mo4  1  0.234  0.424  0.560  1.0
  Mo  Mo5  1  0.560  0.234  0.424  1.0
  Mo  Mo6  1  0.424  0.560  0.234  1.0
  Se  Se7  1  0.761  0.761  0.761  1.0
  Se  Se8  1  0.239  0.239  0.239  1.0
  Se  Se9  1  0.242  0.630  0.879  1.0
  Se  Se10  1  0.879  0.242  0.630  1.0
  Se  Se11  1  0.630  0.879  0.242  1.0
  Se  Se12  1  0.758  0.370  0.121  1.0
  Se  Se13  1  0.121  0.758  0.370  1.0
  Se  Se14  1  0.370  0.121  0.758  1.0
[/CIF]
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The structure described by Np1.0Mo6Se8 crystallizes in the trigonal R-3 space group. Np(1) is bonded in a body-centered cubic geometry to two equivalent Se(1) and six equivalent Se(2) atoms. Mo(1) is bonded in a 5-coordinate geometry to one Se(1) and four equivalent Se(2) atoms. There are two inequivalent Se sites. In the first Se site, Se(1) is bonded in a 4-coordinate geometry to one Np(1) and three equivalent Mo(1) atoms. In the second Se site, Se(2) is bonded in a 5-coordinate geometry to one Np(1) and four equivalent Mo(1) atoms. is represented by the CIF card [CIF]
data_Np(Mo3Se4)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.781
_cell_length_b   6.781
_cell_length_c   6.781
_cell_angle_alpha   89.064
_cell_angle_beta   89.064
_cell_angle_gamma   89.064
_symmetry_Int_Tables_number   1
_cell_volume   311.680
_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
  Mo  Mo1  1  0.766  0.576  0.440  1.0
  Mo  Mo2  1  0.440  0.766  0.576  1.0
  Mo  Mo3  1  0.576  0.440  0.766  1.0
  Mo  Mo4  1  0.234  0.424  0.560  1.0
  Mo  Mo5  1  0.560  0.234  0.424  1.0
  Mo  Mo6  1  0.424  0.560  0.234  1.0
  Se  Se7  1  0.761  0.761  0.761  1.0
  Se  Se8  1  0.239  0.239  0.239  1.0
  Se  Se9  1  0.242  0.630  0.879  1.0
  Se  Se10  1  0.879  0.242  0.630  1.0
  Se  Se11  1  0.630  0.879  0.242  1.0
  Se  Se12  1  0.758  0.370  0.121  1.0
  Se  Se13  1  0.121  0.758  0.370  1.0
  Se  Se14  1  0.370  0.121  0.758  1.0
[/CIF]
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