The crystal structure described by Eu2P3(HO3)3 crystallizes in the triclinic P-1 space group. There are two inequivalent Eu sites. In the first Eu site, Eu(1) is bonded in a 8-coordinate geometry to one O(1), one O(4), one O(5), one O(6), one O(7), one O(8), and two equivalent O(3) atoms. In the second Eu site, Eu(2) is bonded to one O(2), one O(4), one O(5), one O(6), one O(7), one O(8), and one O(9) atom to form distorted EuO7 pentagonal bipyramids that share corners with two equivalent P(3)HO3 tetrahedra, corners with three equivalent P(2)HO3 tetrahedra, and  an edgeedge with one P(1)HO3 tetrahedra. There are three inequivalent P sites. In the first P site, P(1) is bonded to one H(1), one O(1), one O(7), and one O(8) atom to form distorted PHO3 tetrahedra that share  an edgeedge with one Eu(2)O7 pentagonal bipyramid. In the second P site, P(2) is bonded to one H(2), one O(2), one O(4), and one O(5) atom to form distorted PHO3 tetrahedra that share corners with three equivalent Eu(2)O7 pentagonal bipyramids. In the third P site, P(3) is bonded to one H(3), one O(3), one O(6), and one O(9) atom to form distorted PHO3 tetrahedra that share corners with two equivalent Eu(2)O7 pentagonal bipyramids. There are three inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one P(1) atom. In the second H site, H(2) is bonded in a single-bond geometry to one P(2) atom. In the third H site, H(3) is bonded in a single-bond geometry to one P(3) atom. There are nine inequivalent O sites. In the first O site, O(9) is bonded in a bent 150 degrees geometry to one Eu(2) and one P(3) atom. In the second O site, O(1) is bonded in a distorted bent 150 degrees geometry to one Eu(1) and one P(1) atom. In the third O site, O(2) is bonded in a bent 150 degrees geometry to one Eu(2) and one P(2) atom. In the fourth O site, O(3) is bonded in a 3-coordinate geometry to two equivalent Eu(1) and one P(3) atom. In the fifth O site, O(4) is bonded in a 3-coordinate geometry to one Eu(1), one Eu(2), and one P(2) atom. In the sixth O site, O(5) is bonded in a 3-coordinate geometry to one Eu(1), one Eu(2), and one P(2) atom. In the seventh O site, O(6) is bonded in a 3-coordinate geometry to one Eu(1), one Eu(2), and one P(3) atom. In the eighth O site, O(7) is bonded in a 3-coordinate geometry to one Eu(1), one Eu(2), and one P(1) atom. In the ninth O site, O(8) is bonded in a 3-coordinate geometry to one Eu(1), one Eu(2), and one P(1) atom. is represented by the CIF file [CIF]
data_Eu2P3(HO3)3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.235
_cell_length_b   8.466
_cell_length_c   9.666
_cell_angle_alpha   89.159
_cell_angle_beta   68.281
_cell_angle_gamma   115.806
_symmetry_Int_Tables_number   1
_cell_volume   484.086
_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
  Eu  Eu0  1  0.929  0.772  0.906  1.0
  Eu  Eu1  1  0.071  0.228  0.094  1.0
  Eu  Eu2  1  0.530  0.753  0.682  1.0
  Eu  Eu3  1  0.470  0.247  0.318  1.0
  P  P4  1  0.662  0.284  0.961  1.0
  P  P5  1  0.338  0.716  0.039  1.0
  P  P6  1  0.121  0.792  0.547  1.0
  P  P7  1  0.879  0.208  0.453  1.0
  P  P8  1  0.231  0.269  0.727  1.0
  P  P9  1  0.769  0.731  0.273  1.0
  H  H10  1  0.650  0.168  0.859  1.0
  H  H11  1  0.350  0.832  0.141  1.0
  H  H12  1  0.067  0.630  0.497  1.0
  H  H13  1  0.933  0.370  0.503  1.0
  H  H14  1  0.042  0.262  0.712  1.0
  H  H15  1  0.958  0.738  0.288  1.0
  O  O16  1  0.803  0.477  0.869  1.0
  O  O17  1  0.197  0.523  0.131  1.0
  O  O18  1  0.267  0.940  0.404  1.0
  O  O19  1  0.733  0.060  0.596  1.0
  O  O20  1  0.137  0.101  0.850  1.0
  O  O21  1  0.863  0.899  0.150  1.0
  O  O22  1  0.897  0.792  0.648  1.0
  O  O23  1  0.235  0.795  0.655  1.0
  O  O24  1  0.103  0.208  0.352  1.0
  O  O25  1  0.765  0.205  0.345  1.0
  O  O26  1  0.324  0.434  0.796  1.0
  O  O27  1  0.676  0.566  0.204  1.0
  O  O28  1  0.417  0.239  0.070  1.0
  O  O29  1  0.761  0.241  0.064  1.0
  O  O30  1  0.583  0.761  0.930  1.0
  O  O31  1  0.239  0.759  0.936  1.0
  O  O32  1  0.396  0.279  0.569  1.0
  O  O33  1  0.604  0.721  0.431  1.0
[/CIF]
.
The crystal structure described by Eu2P3(HO3)3 crystallizes in the triclinic P-1 space group. There are two inequivalent Eu sites. In the first Eu site, Eu(1) is bonded in a 8-coordinate geometry to one O(1), one O(4), one O(5), one O(6), one O(7), one O(8), and two equivalent O(3) atoms. In the second Eu site, Eu(2) is bonded to one O(2), one O(4), one O(5), one O(6), one O(7), one O(8), and one O(9) atom to form distorted EuO7 pentagonal bipyramids that share corners with two equivalent P(3)HO3 tetrahedra, corners with three equivalent P(2)HO3 tetrahedra, and  an edgeedge with one P(1)HO3 tetrahedra. There are three inequivalent P sites. In the first P site, P(1) is bonded to one H(1), one O(1), one O(7), and one O(8) atom to form distorted PHO3 tetrahedra that share  an edgeedge with one Eu(2)O7 pentagonal bipyramid. In the second P site, P(2) is bonded to one H(2), one O(2), one O(4), and one O(5) atom to form distorted PHO3 tetrahedra that share corners with three equivalent Eu(2)O7 pentagonal bipyramids. In the third P site, P(3) is bonded to one H(3), one O(3), one O(6), and one O(9) atom to form distorted PHO3 tetrahedra that share corners with two equivalent Eu(2)O7 pentagonal bipyramids. There are three inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one P(1) atom. In the second H site, H(2) is bonded in a single-bond geometry to one P(2) atom. In the third H site, H(3) is bonded in a single-bond geometry to one P(3) atom. There are nine inequivalent O sites. In the first O site, O(9) is bonded in a bent 150 degrees geometry to one Eu(2) and one P(3) atom. In the second O site, O(1) is bonded in a distorted bent 150 degrees geometry to one Eu(1) and one P(1) atom. In the third O site, O(2) is bonded in a bent 150 degrees geometry to one Eu(2) and one P(2) atom. In the fourth O site, O(3) is bonded in a 3-coordinate geometry to two equivalent Eu(1) and one P(3) atom. In the fifth O site, O(4) is bonded in a 3-coordinate geometry to one Eu(1), one Eu(2), and one P(2) atom. In the sixth O site, O(5) is bonded in a 3-coordinate geometry to one Eu(1), one Eu(2), and one P(2) atom. In the seventh O site, O(6) is bonded in a 3-coordinate geometry to one Eu(1), one Eu(2), and one P(3) atom. In the eighth O site, O(7) is bonded in a 3-coordinate geometry to one Eu(1), one Eu(2), and one P(1) atom. In the ninth O site, O(8) is bonded in a 3-coordinate geometry to one Eu(1), one Eu(2), and one P(1) atom. is represented by the CIF file [CIF]
data_Eu2P3(HO3)3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.235
_cell_length_b   8.466
_cell_length_c   9.666
_cell_angle_alpha   89.159
_cell_angle_beta   68.281
_cell_angle_gamma   115.806
_symmetry_Int_Tables_number   1
_cell_volume   484.086
_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
  Eu  Eu0  1  0.929  0.772  0.906  1.0
  Eu  Eu1  1  0.071  0.228  0.094  1.0
  Eu  Eu2  1  0.530  0.753  0.682  1.0
  Eu  Eu3  1  0.470  0.247  0.318  1.0
  P  P4  1  0.662  0.284  0.961  1.0
  P  P5  1  0.338  0.716  0.039  1.0
  P  P6  1  0.121  0.792  0.547  1.0
  P  P7  1  0.879  0.208  0.453  1.0
  P  P8  1  0.231  0.269  0.727  1.0
  P  P9  1  0.769  0.731  0.273  1.0
  H  H10  1  0.650  0.168  0.859  1.0
  H  H11  1  0.350  0.832  0.141  1.0
  H  H12  1  0.067  0.630  0.497  1.0
  H  H13  1  0.933  0.370  0.503  1.0
  H  H14  1  0.042  0.262  0.712  1.0
  H  H15  1  0.958  0.738  0.288  1.0
  O  O16  1  0.803  0.477  0.869  1.0
  O  O17  1  0.197  0.523  0.131  1.0
  O  O18  1  0.267  0.940  0.404  1.0
  O  O19  1  0.733  0.060  0.596  1.0
  O  O20  1  0.137  0.101  0.850  1.0
  O  O21  1  0.863  0.899  0.150  1.0
  O  O22  1  0.897  0.792  0.648  1.0
  O  O23  1  0.235  0.795  0.655  1.0
  O  O24  1  0.103  0.208  0.352  1.0
  O  O25  1  0.765  0.205  0.345  1.0
  O  O26  1  0.324  0.434  0.796  1.0
  O  O27  1  0.676  0.566  0.204  1.0
  O  O28  1  0.417  0.239  0.070  1.0
  O  O29  1  0.761  0.241  0.064  1.0
  O  O30  1  0.583  0.761  0.930  1.0
  O  O31  1  0.239  0.759  0.936  1.0
  O  O32  1  0.396  0.279  0.569  1.0
  O  O33  1  0.604  0.721  0.431  1.0
[/CIF]
.