The structure described by NpGeO2 crystallizes in the tetragonal I4_1/amd space group. Np(1) is bonded to six equivalent O(1) atoms to form distorted edge-sharing NpO6 octahedra. Ge(1) is bonded in a square co-planar geometry to four equivalent O(1) atoms. O(1) is bonded in a 5-coordinate geometry to three equivalent Np(1) and two equivalent Ge(1) atoms. is represented by the CIF card [CIF]
data_NpGeO2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.384
_cell_length_b   7.384
_cell_length_c   7.384
_cell_angle_alpha   125.962
_cell_angle_beta   125.962
_cell_angle_gamma   79.950
_symmetry_Int_Tables_number   1
_cell_volume   254.691
_cell_formula_units_Z   4
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  0.875  0.625  0.250  1.0
  Np  Np1  1  0.375  0.625  0.750  1.0
  Np  Np2  1  0.375  0.625  0.250  1.0
  Np  Np3  1  0.375  0.125  0.750  1.0
  Ge  Ge4  1  0.375  0.125  0.250  1.0
  Ge  Ge5  1  0.875  0.125  0.750  1.0
  Ge  Ge6  1  0.875  0.125  0.250  1.0
  Ge  Ge7  1  0.875  0.625  0.750  1.0
  O  O8  1  0.173  0.443  0.270  1.0
  O  O9  1  0.173  0.903  0.730  1.0
  O  O10  1  0.193  0.423  0.770  1.0
  O  O11  1  0.577  0.807  0.230  1.0
  O  O12  1  0.653  0.423  0.230  1.0
  O  O13  1  0.577  0.347  0.770  1.0
  O  O14  1  0.557  0.827  0.730  1.0
  O  O15  1  0.097  0.827  0.270  1.0
[/CIF]
.
The structure described by NpGeO2 crystallizes in the tetragonal I4_1/amd space group. Np(1) is bonded to six equivalent O(1) atoms to form distorted edge-sharing NpO6 octahedra. Ge(1) is bonded in a square co-planar geometry to four equivalent O(1) atoms. O(1) is bonded in a 5-coordinate geometry to three equivalent Np(1) and two equivalent Ge(1) atoms. is represented by the CIF card [CIF]
data_NpGeO2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.384
_cell_length_b   7.384
_cell_length_c   7.384
_cell_angle_alpha   125.962
_cell_angle_beta   125.962
_cell_angle_gamma   79.950
_symmetry_Int_Tables_number   1
_cell_volume   254.691
_cell_formula_units_Z   4
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  0.875  0.625  0.250  1.0
  Np  Np1  1  0.375  0.625  0.750  1.0
  Np  Np2  1  0.375  0.625  0.250  1.0
  Np  Np3  1  0.375  0.125  0.750  1.0
  Ge  Ge4  1  0.375  0.125  0.250  1.0
  Ge  Ge5  1  0.875  0.125  0.750  1.0
  Ge  Ge6  1  0.875  0.125  0.250  1.0
  Ge  Ge7  1  0.875  0.625  0.750  1.0
  O  O8  1  0.173  0.443  0.270  1.0
  O  O9  1  0.173  0.903  0.730  1.0
  O  O10  1  0.193  0.423  0.770  1.0
  O  O11  1  0.577  0.807  0.230  1.0
  O  O12  1  0.653  0.423  0.230  1.0
  O  O13  1  0.577  0.347  0.770  1.0
  O  O14  1  0.557  0.827  0.730  1.0
  O  O15  1  0.097  0.827  0.270  1.0
[/CIF]
.