The material structure described by Na3Np(HO3)2 crystallizes in the orthorhombic Fdd2 space group. There are two inequivalent Na sites. In the first Na site, Na(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms to form distorted NaO6 octahedra that share corners with eight equivalent Na(2)O4 tetrahedra and edges with three equivalent Np(1)O6 octahedra. In the second Na site, Na(2) is bonded to one O(2), one O(3), and two equivalent O(1) atoms to form distorted NaO4 tetrahedra that share corners with four equivalent Na(1)O6 octahedra, corners with four equivalent Np(1)O6 octahedra, and corners with two equivalent Na(2)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 53-77°. Np(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms to form NpO6 octahedra that share corners with eight equivalent Na(2)O4 tetrahedra and edges with three equivalent Na(1)O6 octahedra. H(1) is bonded in a single-bond geometry to one O(3) atom. There are three inequivalent O sites. In the first O site, O(1) is bonded to one Na(1), two equivalent Na(2), and one Np(1) atom to form corner-sharing ONa3Np tetrahedra. In the second O site, O(2) is bonded in a distorted trigonal non-coplanar geometry to one Na(1), one Na(2), and one Np(1) atom. In the third O site, O(3) is bonded in a distorted single-bond geometry to one Na(1), one Na(2), one Np(1), and one H(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Na3Np(HO3)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   11.361
_cell_length_b   10.514
_cell_length_c   6.037
_cell_angle_alpha   81.886
_cell_angle_beta   66.372
_cell_angle_gamma   31.742
_symmetry_Int_Tables_number   1
_cell_volume   316.338
_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
  Na  Na0  1  0.631  0.869  0.631  1.0
  Na  Na1  1  0.231  0.094  0.358  1.0
  Na  Na2  1  0.156  0.019  0.933  1.0
  Na  Na3  1  0.381  0.619  0.381  1.0
  Na  Na4  1  0.933  0.892  0.156  1.0
  Na  Na5  1  0.358  0.317  0.231  1.0
  Np  Np6  1  0.971  0.529  0.971  1.0
  Np  Np7  1  0.721  0.279  0.721  1.0
  H  H8  1  0.773  0.516  0.817  1.0
  H  H9  1  0.734  0.477  0.356  1.0
  H  H10  1  0.356  0.433  0.734  1.0
  H  H11  1  0.817  0.894  0.773  1.0
  O  O12  1  0.202  0.186  0.996  1.0
  O  O13  1  0.657  0.726  0.283  1.0
  O  O14  1  0.897  0.481  0.728  1.0
  O  O15  1  0.769  0.353  0.356  1.0
  O  O16  1  0.524  0.593  0.916  1.0
  O  O17  1  0.064  0.048  0.634  1.0
  O  O18  1  0.634  0.254  0.064  1.0
  O  O19  1  0.916  0.967  0.524  1.0
  O  O20  1  0.356  0.522  0.769  1.0
  O  O21  1  0.728  0.894  0.897  1.0
  O  O22  1  0.283  0.334  0.657  1.0
  O  O23  1  0.996  0.616  0.202  1.0
[/CIF]
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The material structure described by Na3Np(HO3)2 crystallizes in the orthorhombic Fdd2 space group. There are two inequivalent Na sites. In the first Na site, Na(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms to form distorted NaO6 octahedra that share corners with eight equivalent Na(2)O4 tetrahedra and edges with three equivalent Np(1)O6 octahedra. In the second Na site, Na(2) is bonded to one O(2), one O(3), and two equivalent O(1) atoms to form distorted NaO4 tetrahedra that share corners with four equivalent Na(1)O6 octahedra, corners with four equivalent Np(1)O6 octahedra, and corners with two equivalent Na(2)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 53-77°. Np(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms to form NpO6 octahedra that share corners with eight equivalent Na(2)O4 tetrahedra and edges with three equivalent Na(1)O6 octahedra. H(1) is bonded in a single-bond geometry to one O(3) atom. There are three inequivalent O sites. In the first O site, O(1) is bonded to one Na(1), two equivalent Na(2), and one Np(1) atom to form corner-sharing ONa3Np tetrahedra. In the second O site, O(2) is bonded in a distorted trigonal non-coplanar geometry to one Na(1), one Na(2), and one Np(1) atom. In the third O site, O(3) is bonded in a distorted single-bond geometry to one Na(1), one Na(2), one Np(1), and one H(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Na3Np(HO3)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   11.361
_cell_length_b   10.514
_cell_length_c   6.037
_cell_angle_alpha   81.886
_cell_angle_beta   66.372
_cell_angle_gamma   31.742
_symmetry_Int_Tables_number   1
_cell_volume   316.338
_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
  Na  Na0  1  0.631  0.869  0.631  1.0
  Na  Na1  1  0.231  0.094  0.358  1.0
  Na  Na2  1  0.156  0.019  0.933  1.0
  Na  Na3  1  0.381  0.619  0.381  1.0
  Na  Na4  1  0.933  0.892  0.156  1.0
  Na  Na5  1  0.358  0.317  0.231  1.0
  Np  Np6  1  0.971  0.529  0.971  1.0
  Np  Np7  1  0.721  0.279  0.721  1.0
  H  H8  1  0.773  0.516  0.817  1.0
  H  H9  1  0.734  0.477  0.356  1.0
  H  H10  1  0.356  0.433  0.734  1.0
  H  H11  1  0.817  0.894  0.773  1.0
  O  O12  1  0.202  0.186  0.996  1.0
  O  O13  1  0.657  0.726  0.283  1.0
  O  O14  1  0.897  0.481  0.728  1.0
  O  O15  1  0.769  0.353  0.356  1.0
  O  O16  1  0.524  0.593  0.916  1.0
  O  O17  1  0.064  0.048  0.634  1.0
  O  O18  1  0.634  0.254  0.064  1.0
  O  O19  1  0.916  0.967  0.524  1.0
  O  O20  1  0.356  0.522  0.769  1.0
  O  O21  1  0.728  0.894  0.897  1.0
  O  O22  1  0.283  0.334  0.657  1.0
  O  O23  1  0.996  0.616  0.202  1.0
[/CIF]
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