The material structure described by BaNp(PO4)2 crystallizes in the monoclinic C2/c space group. Ba(1) is bonded in a 10-coordinate geometry to two equivalent O(2), two equivalent O(3), two equivalent O(4), and four equivalent O(1) atoms. Np(1) is bonded in a 8-coordinate geometry to two equivalent O(1), two equivalent O(2), two equivalent O(3), and two equivalent O(4) atoms. P(1) is bonded in a tetrahedral geometry to one O(1), one O(2), one O(3), and one O(4) atom. There are four inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to two equivalent Ba(1), one Np(1), and one P(1) atom. In the second O site, O(2) is bonded in a 2-coordinate geometry to one Ba(1), one Np(1), and one P(1) atom. In the third O site, O(3) is bonded in a distorted single-bond geometry to one Ba(1), one Np(1), and one P(1) atom. In the fourth O site, O(4) is bonded in a 1-coordinate geometry to one Ba(1), one Np(1), and one P(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_BaNp(PO4)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.961
_cell_length_b   6.961
_cell_length_c   9.537
_cell_angle_alpha   78.288
_cell_angle_beta   78.288
_cell_angle_gamma   45.970
_symmetry_Int_Tables_number   1
_cell_volume   324.073
_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
  Ba  Ba0  1  0.000  0.500  0.000  1.0
  Ba  Ba1  1  0.500  0.000  0.500  1.0
  Np  Np2  1  0.182  0.818  0.250  1.0
  Np  Np3  1  0.818  0.182  0.750  1.0
  P  P4  1  0.648  0.176  0.111  1.0
  P  P5  1  0.824  0.352  0.389  1.0
  P  P6  1  0.352  0.824  0.889  1.0
  P  P7  1  0.176  0.648  0.611  1.0
  O  O8  1  0.792  0.905  0.206  1.0
  O  O9  1  0.095  0.208  0.294  1.0
  O  O10  1  0.208  0.095  0.794  1.0
  O  O11  1  0.905  0.792  0.706  1.0
  O  O12  1  0.372  0.412  0.184  1.0
  O  O13  1  0.588  0.628  0.316  1.0
  O  O14  1  0.628  0.588  0.816  1.0
  O  O15  1  0.412  0.372  0.684  1.0
  O  O16  1  0.846  0.216  0.090  1.0
  O  O17  1  0.784  0.154  0.410  1.0
  O  O18  1  0.154  0.784  0.910  1.0
  O  O19  1  0.216  0.846  0.590  1.0
  O  O20  1  0.596  0.160  0.964  1.0
  O  O21  1  0.840  0.404  0.536  1.0
  O  O22  1  0.404  0.840  0.036  1.0
  O  O23  1  0.160  0.596  0.464  1.0
[/CIF]
.
The material structure described by BaNp(PO4)2 crystallizes in the monoclinic C2/c space group. Ba(1) is bonded in a 10-coordinate geometry to two equivalent O(2), two equivalent O(3), two equivalent O(4), and four equivalent O(1) atoms. Np(1) is bonded in a 8-coordinate geometry to two equivalent O(1), two equivalent O(2), two equivalent O(3), and two equivalent O(4) atoms. P(1) is bonded in a tetrahedral geometry to one O(1), one O(2), one O(3), and one O(4) atom. There are four inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to two equivalent Ba(1), one Np(1), and one P(1) atom. In the second O site, O(2) is bonded in a 2-coordinate geometry to one Ba(1), one Np(1), and one P(1) atom. In the third O site, O(3) is bonded in a distorted single-bond geometry to one Ba(1), one Np(1), and one P(1) atom. In the fourth O site, O(4) is bonded in a 1-coordinate geometry to one Ba(1), one Np(1), and one P(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_BaNp(PO4)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.961
_cell_length_b   6.961
_cell_length_c   9.537
_cell_angle_alpha   78.288
_cell_angle_beta   78.288
_cell_angle_gamma   45.970
_symmetry_Int_Tables_number   1
_cell_volume   324.073
_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
  Ba  Ba0  1  0.000  0.500  0.000  1.0
  Ba  Ba1  1  0.500  0.000  0.500  1.0
  Np  Np2  1  0.182  0.818  0.250  1.0
  Np  Np3  1  0.818  0.182  0.750  1.0
  P  P4  1  0.648  0.176  0.111  1.0
  P  P5  1  0.824  0.352  0.389  1.0
  P  P6  1  0.352  0.824  0.889  1.0
  P  P7  1  0.176  0.648  0.611  1.0
  O  O8  1  0.792  0.905  0.206  1.0
  O  O9  1  0.095  0.208  0.294  1.0
  O  O10  1  0.208  0.095  0.794  1.0
  O  O11  1  0.905  0.792  0.706  1.0
  O  O12  1  0.372  0.412  0.184  1.0
  O  O13  1  0.588  0.628  0.316  1.0
  O  O14  1  0.628  0.588  0.816  1.0
  O  O15  1  0.412  0.372  0.684  1.0
  O  O16  1  0.846  0.216  0.090  1.0
  O  O17  1  0.784  0.154  0.410  1.0
  O  O18  1  0.154  0.784  0.910  1.0
  O  O19  1  0.216  0.846  0.590  1.0
  O  O20  1  0.596  0.160  0.964  1.0
  O  O21  1  0.840  0.404  0.536  1.0
  O  O22  1  0.404  0.840  0.036  1.0
  O  O23  1  0.160  0.596  0.464  1.0
[/CIF]
.