The material structure described by BaSr2Np crystallizes in the cubic F-43m space group. Ba(1) is bonded in a distorted body-centered cubic geometry to four equivalent Sr(1) and four equivalent Np(1) atoms. There are two inequivalent Sr sites. In the first Sr site, Sr(1) is bonded in a distorted body-centered cubic geometry to four equivalent Ba(1) and four equivalent Sr(2) atoms. In the second Sr site, Sr(2) is bonded to four equivalent Sr(1) and four equivalent Np(1) atoms to form distorted edge-sharing SrSr4Np4 tetrahedra. Np(1) is bonded in a body-centered cubic geometry to four equivalent Ba(1) and four equivalent Sr(2) atoms. is represented by the CIF card [CIF]
data_BaSr2Np
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.524
_cell_length_b   6.524
_cell_length_c   6.524
_cell_angle_alpha   60.000
_cell_angle_beta   60.000
_cell_angle_gamma   60.000
_symmetry_Int_Tables_number   1
_cell_volume   196.323
_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
  Ba  Ba0  1  0.750  0.750  0.750  1.0
  Sr  Sr1  1  0.500  0.500  0.500  1.0
  Sr  Sr2  1  0.250  0.250  0.250  1.0
  Np  Np3  1  0.000  0.000  0.000  1.0
[/CIF]
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The material structure described by BaSr2Np crystallizes in the cubic F-43m space group. Ba(1) is bonded in a distorted body-centered cubic geometry to four equivalent Sr(1) and four equivalent Np(1) atoms. There are two inequivalent Sr sites. In the first Sr site, Sr(1) is bonded in a distorted body-centered cubic geometry to four equivalent Ba(1) and four equivalent Sr(2) atoms. In the second Sr site, Sr(2) is bonded to four equivalent Sr(1) and four equivalent Np(1) atoms to form distorted edge-sharing SrSr4Np4 tetrahedra. Np(1) is bonded in a body-centered cubic geometry to four equivalent Ba(1) and four equivalent Sr(2) atoms. is represented by the CIF card [CIF]
data_BaSr2Np
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.524
_cell_length_b   6.524
_cell_length_c   6.524
_cell_angle_alpha   60.000
_cell_angle_beta   60.000
_cell_angle_gamma   60.000
_symmetry_Int_Tables_number   1
_cell_volume   196.323
_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
  Ba  Ba0  1  0.750  0.750  0.750  1.0
  Sr  Sr1  1  0.500  0.500  0.500  1.0
  Sr  Sr2  1  0.250  0.250  0.250  1.0
  Np  Np3  1  0.000  0.000  0.000  1.0
[/CIF]
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