The crystal structure described by BaNpPH2O7 crystallizes in the monoclinic P2_1/c space group. Ba(1) is bonded in a 8-coordinate geometry to one O(2), one O(7), two equivalent O(3), two equivalent O(4), and two equivalent O(6) atoms. Np(1) is bonded to one O(4), one O(5), one O(6), two equivalent O(1), and two equivalent O(2) atoms to form distorted NpO7 pentagonal bipyramids that share corners with three equivalent P(1)O4 tetrahedra, edges with two equivalent Np(1)O7 pentagonal bipyramids, and  an edgeedge with one P(1)O4 tetrahedra. P(1) is bonded to one O(1), one O(2), one O(3), and one O(5) atom to form PO4 tetrahedra that share corners with three equivalent Np(1)O7 pentagonal bipyramids and  an edgeedge with one Np(1)O7 pentagonal bipyramid. There are two inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one O(7) atom. In the second H site, H(2) is bonded in a single-bond geometry to one O(7) atom. There are seven inequivalent O sites. In the first O site, O(4) is bonded in a distorted single-bond geometry to two equivalent Ba(1) and one Np(1) atom. In the second O site, O(5) is bonded in a 2-coordinate geometry to one Np(1) and one P(1) atom. In the third O site, O(6) is bonded in a distorted single-bond geometry to two equivalent Ba(1) and one Np(1) atom. In the fourth O site, O(7) is bonded in a water-like geometry to one Ba(1), one H(1), and one H(2) atom. In the fifth O site, O(1) is bonded in a distorted single-bond geometry to two equivalent Np(1) and one P(1) atom. In the sixth O site, O(2) is bonded in a distorted single-bond geometry to one Ba(1), two equivalent Np(1), and one P(1) atom. In the seventh O site, O(3) is bonded in a distorted single-bond geometry to two equivalent Ba(1) and one P(1) atom. is represented by the CIF card [CIF]
data_BaNpPH2O7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.119
_cell_length_b   6.979
_cell_length_c   13.313
_cell_angle_alpha   77.765
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   646.371
_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
  Ba  Ba0  1  0.448  0.071  0.147  1.0
  Ba  Ba1  1  0.948  0.929  0.353  1.0
  Ba  Ba2  1  0.552  0.929  0.853  1.0
  Ba  Ba3  1  0.052  0.071  0.647  1.0
  Np  Np4  1  0.769  0.526  0.179  1.0
  Np  Np5  1  0.269  0.474  0.321  1.0
  Np  Np6  1  0.231  0.474  0.821  1.0
  Np  Np7  1  0.731  0.526  0.679  1.0
  P  P8  1  0.784  0.418  0.423  1.0
  P  P9  1  0.284  0.582  0.077  1.0
  P  P10  1  0.216  0.582  0.577  1.0
  P  P11  1  0.716  0.418  0.923  1.0
  H  H12  1  0.962  0.154  0.125  1.0
  H  H13  1  0.462  0.846  0.375  1.0
  H  H14  1  0.038  0.846  0.875  1.0
  H  H15  1  0.538  0.154  0.625  1.0
  H  H16  1  0.066  0.107  0.030  1.0
  H  H17  1  0.566  0.893  0.470  1.0
  H  H18  1  0.934  0.893  0.970  1.0
  H  H19  1  0.434  0.107  0.530  1.0
  O  O20  1  0.104  0.569  0.147  1.0
  O  O21  1  0.604  0.431  0.353  1.0
  O  O22  1  0.896  0.431  0.853  1.0
  O  O23  1  0.396  0.569  0.647  1.0
  O  O24  1  0.436  0.477  0.159  1.0
  O  O25  1  0.936  0.523  0.341  1.0
  O  O26  1  0.564  0.523  0.841  1.0
  O  O27  1  0.064  0.477  0.659  1.0
  O  O28  1  0.345  0.792  0.031  1.0
  O  O29  1  0.845  0.208  0.469  1.0
  O  O30  1  0.655  0.208  0.969  1.0
  O  O31  1  0.155  0.792  0.531  1.0
  O  O32  1  0.704  0.249  0.696  1.0
  O  O33  1  0.204  0.751  0.804  1.0
  O  O34  1  0.296  0.751  0.304  1.0
  O  O35  1  0.796  0.249  0.196  1.0
  O  O36  1  0.740  0.548  0.002  1.0
  O  O37  1  0.240  0.452  0.498  1.0
  O  O38  1  0.260  0.452  0.998  1.0
  O  O39  1  0.760  0.548  0.502  1.0
  O  O40  1  0.732  0.794  0.172  1.0
  O  O41  1  0.232  0.206  0.328  1.0
  O  O42  1  0.268  0.206  0.828  1.0
  O  O43  1  0.768  0.794  0.672  1.0
  O  O44  1  0.067  0.075  0.105  1.0
  O  O45  1  0.567  0.925  0.395  1.0
  O  O46  1  0.933  0.925  0.895  1.0
  O  O47  1  0.433  0.075  0.605  1.0
[/CIF]
.
The crystal structure described by BaNpPH2O7 crystallizes in the monoclinic P2_1/c space group. Ba(1) is bonded in a 8-coordinate geometry to one O(2), one O(7), two equivalent O(3), two equivalent O(4), and two equivalent O(6) atoms. Np(1) is bonded to one O(4), one O(5), one O(6), two equivalent O(1), and two equivalent O(2) atoms to form distorted NpO7 pentagonal bipyramids that share corners with three equivalent P(1)O4 tetrahedra, edges with two equivalent Np(1)O7 pentagonal bipyramids, and  an edgeedge with one P(1)O4 tetrahedra. P(1) is bonded to one O(1), one O(2), one O(3), and one O(5) atom to form PO4 tetrahedra that share corners with three equivalent Np(1)O7 pentagonal bipyramids and  an edgeedge with one Np(1)O7 pentagonal bipyramid. There are two inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one O(7) atom. In the second H site, H(2) is bonded in a single-bond geometry to one O(7) atom. There are seven inequivalent O sites. In the first O site, O(4) is bonded in a distorted single-bond geometry to two equivalent Ba(1) and one Np(1) atom. In the second O site, O(5) is bonded in a 2-coordinate geometry to one Np(1) and one P(1) atom. In the third O site, O(6) is bonded in a distorted single-bond geometry to two equivalent Ba(1) and one Np(1) atom. In the fourth O site, O(7) is bonded in a water-like geometry to one Ba(1), one H(1), and one H(2) atom. In the fifth O site, O(1) is bonded in a distorted single-bond geometry to two equivalent Np(1) and one P(1) atom. In the sixth O site, O(2) is bonded in a distorted single-bond geometry to one Ba(1), two equivalent Np(1), and one P(1) atom. In the seventh O site, O(3) is bonded in a distorted single-bond geometry to two equivalent Ba(1) and one P(1) atom. is represented by the CIF card [CIF]
data_BaNpPH2O7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.119
_cell_length_b   6.979
_cell_length_c   13.313
_cell_angle_alpha   77.765
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   646.371
_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
  Ba  Ba0  1  0.448  0.071  0.147  1.0
  Ba  Ba1  1  0.948  0.929  0.353  1.0
  Ba  Ba2  1  0.552  0.929  0.853  1.0
  Ba  Ba3  1  0.052  0.071  0.647  1.0
  Np  Np4  1  0.769  0.526  0.179  1.0
  Np  Np5  1  0.269  0.474  0.321  1.0
  Np  Np6  1  0.231  0.474  0.821  1.0
  Np  Np7  1  0.731  0.526  0.679  1.0
  P  P8  1  0.784  0.418  0.423  1.0
  P  P9  1  0.284  0.582  0.077  1.0
  P  P10  1  0.216  0.582  0.577  1.0
  P  P11  1  0.716  0.418  0.923  1.0
  H  H12  1  0.962  0.154  0.125  1.0
  H  H13  1  0.462  0.846  0.375  1.0
  H  H14  1  0.038  0.846  0.875  1.0
  H  H15  1  0.538  0.154  0.625  1.0
  H  H16  1  0.066  0.107  0.030  1.0
  H  H17  1  0.566  0.893  0.470  1.0
  H  H18  1  0.934  0.893  0.970  1.0
  H  H19  1  0.434  0.107  0.530  1.0
  O  O20  1  0.104  0.569  0.147  1.0
  O  O21  1  0.604  0.431  0.353  1.0
  O  O22  1  0.896  0.431  0.853  1.0
  O  O23  1  0.396  0.569  0.647  1.0
  O  O24  1  0.436  0.477  0.159  1.0
  O  O25  1  0.936  0.523  0.341  1.0
  O  O26  1  0.564  0.523  0.841  1.0
  O  O27  1  0.064  0.477  0.659  1.0
  O  O28  1  0.345  0.792  0.031  1.0
  O  O29  1  0.845  0.208  0.469  1.0
  O  O30  1  0.655  0.208  0.969  1.0
  O  O31  1  0.155  0.792  0.531  1.0
  O  O32  1  0.704  0.249  0.696  1.0
  O  O33  1  0.204  0.751  0.804  1.0
  O  O34  1  0.296  0.751  0.304  1.0
  O  O35  1  0.796  0.249  0.196  1.0
  O  O36  1  0.740  0.548  0.002  1.0
  O  O37  1  0.240  0.452  0.498  1.0
  O  O38  1  0.260  0.452  0.998  1.0
  O  O39  1  0.760  0.548  0.502  1.0
  O  O40  1  0.732  0.794  0.172  1.0
  O  O41  1  0.232  0.206  0.328  1.0
  O  O42  1  0.268  0.206  0.828  1.0
  O  O43  1  0.768  0.794  0.672  1.0
  O  O44  1  0.067  0.075  0.105  1.0
  O  O45  1  0.567  0.925  0.395  1.0
  O  O46  1  0.933  0.925  0.895  1.0
  O  O47  1  0.433  0.075  0.605  1.0
[/CIF]
.