The crystal structure described by Sr4BiP3O13 crystallizes in the monoclinic P2_1/m space group. There are three inequivalent Sr sites. In the first Sr site, Sr(1) is bonded in a 9-coordinate geometry to one O(1), one O(2), one O(3), one O(4), one O(5), one O(6), one O(7), one O(8), and one O(9) atom. In the second Sr site, Sr(2) is bonded in a 7-coordinate geometry to one O(1), one O(10), one O(9), two equivalent O(4), and two equivalent O(5) atoms. In the third Sr site, Sr(3) is bonded to one O(10), one O(2), one O(7), two equivalent O(5), and two equivalent O(6) atoms to form distorted SrO7 pentagonal bipyramids that share  a cornercorner with one P(1)O4 tetrahedra, corners with three equivalent P(2)O4 tetrahedra, and  an edgeedge with one P(3)O4 tetrahedra. Bi(1) is bonded in a 6-coordinate geometry to one O(10), one O(3), two equivalent O(4), and two equivalent O(6) atoms. There are three inequivalent P sites. In the first P site, P(1) is bonded to one O(1), one O(7), and two equivalent O(4) atoms to form PO4 tetrahedra that share  a cornercorner with one Sr(3)O7 pentagonal bipyramid. In the second P site, P(2) is bonded to one O(2), one O(8), and two equivalent O(5) atoms to form PO4 tetrahedra that share corners with three equivalent Sr(3)O7 pentagonal bipyramids. In the third P site, P(3) is bonded to one O(3), one O(9), and two equivalent O(6) atoms to form PO4 tetrahedra that share  an edgeedge with one Sr(3)O7 pentagonal bipyramid. There are ten inequivalent O sites. In the first O site, O(7) is bonded in a distorted single-bond geometry to one Sr(3), two equivalent Sr(1), and one P(1) atom. In the second O site, O(8) is bonded in a 3-coordinate geometry to two equivalent Sr(1) and one P(2) atom. In the third O site, O(9) is bonded in a distorted single-bond geometry to one Sr(2), two equivalent Sr(1), and one P(3) atom. In the fourth O site, O(10) is bonded in a trigonal planar geometry to one Sr(2), one Sr(3), and one Bi(1) atom. In the fifth O site, O(1) is bonded in a distorted single-bond geometry to one Sr(2), two equivalent Sr(1), and one P(1) atom. In the sixth O site, O(2) is bonded in a distorted tetrahedral geometry to one Sr(3), two equivalent Sr(1), and one P(2) atom. In the seventh O site, O(3) is bonded in a distorted single-bond geometry to two equivalent Sr(1), one Bi(1), and one P(3) atom. In the eighth O site, O(4) is bonded in a distorted single-bond geometry to one Sr(1), one Sr(2), one Bi(1), and one P(1) atom. In the ninth O site, O(5) is bonded in a 1-coordinate geometry to one Sr(1), one Sr(2), one Sr(3), and one P(2) atom. In the tenth O site, O(6) is bonded in a distorted single-bond geometry to one Sr(1), one Sr(3), one Bi(1), and one P(3) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Sr4BiP3O13
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.348
_cell_length_b   9.767
_cell_length_c   9.898
_cell_angle_alpha   60.441
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   617.900
_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
  Sr  Sr0  1  0.499  0.342  0.327  1.0
  Sr  Sr1  1  0.999  0.658  0.673  1.0
  Sr  Sr2  1  0.501  0.658  0.673  1.0
  Sr  Sr3  1  0.001  0.342  0.327  1.0
  Sr  Sr4  1  0.250  0.006  0.763  1.0
  Sr  Sr5  1  0.250  0.238  0.011  1.0
  Sr  Sr6  1  0.750  0.994  0.237  1.0
  Sr  Sr7  1  0.750  0.762  0.989  1.0
  Bi  Bi8  1  0.250  0.775  0.232  1.0
  Bi  Bi9  1  0.750  0.225  0.768  1.0
  P  P10  1  0.250  0.968  0.401  1.0
  P  P11  1  0.250  0.630  0.966  1.0
  P  P12  1  0.250  0.396  0.632  1.0
  P  P13  1  0.750  0.032  0.599  1.0
  P  P14  1  0.750  0.370  0.034  1.0
  P  P15  1  0.750  0.604  0.368  1.0
  O  O16  1  0.250  0.881  0.581  1.0
  O  O17  1  0.250  0.534  0.879  1.0
  O  O18  1  0.250  0.579  0.546  1.0
  O  O19  1  0.750  0.119  0.419  1.0
  O  O20  1  0.750  0.466  0.121  1.0
  O  O21  1  0.750  0.421  0.454  1.0
  O  O22  1  0.419  0.912  0.343  1.0
  O  O23  1  0.422  0.736  0.915  1.0
  O  O24  1  0.421  0.337  0.740  1.0
  O  O25  1  0.919  0.088  0.657  1.0
  O  O26  1  0.922  0.264  0.085  1.0
  O  O27  1  0.921  0.663  0.260  1.0
  O  O28  1  0.581  0.088  0.657  1.0
  O  O29  1  0.578  0.264  0.085  1.0
  O  O30  1  0.579  0.663  0.260  1.0
  O  O31  1  0.081  0.912  0.343  1.0
  O  O32  1  0.078  0.736  0.915  1.0
  O  O33  1  0.079  0.337  0.740  1.0
  O  O34  1  0.250  0.149  0.331  1.0
  O  O35  1  0.250  0.517  0.145  1.0
  O  O36  1  0.250  0.330  0.517  1.0
  O  O37  1  0.750  0.851  0.669  1.0
  O  O38  1  0.750  0.483  0.855  1.0
  O  O39  1  0.750  0.670  0.483  1.0
  O  O40  1  0.250  0.982  0.022  1.0
  O  O41  1  0.750  0.018  0.978  1.0
[/CIF]
.
The crystal structure described by Sr4BiP3O13 crystallizes in the monoclinic P2_1/m space group. There are three inequivalent Sr sites. In the first Sr site, Sr(1) is bonded in a 9-coordinate geometry to one O(1), one O(2), one O(3), one O(4), one O(5), one O(6), one O(7), one O(8), and one O(9) atom. In the second Sr site, Sr(2) is bonded in a 7-coordinate geometry to one O(1), one O(10), one O(9), two equivalent O(4), and two equivalent O(5) atoms. In the third Sr site, Sr(3) is bonded to one O(10), one O(2), one O(7), two equivalent O(5), and two equivalent O(6) atoms to form distorted SrO7 pentagonal bipyramids that share  a cornercorner with one P(1)O4 tetrahedra, corners with three equivalent P(2)O4 tetrahedra, and  an edgeedge with one P(3)O4 tetrahedra. Bi(1) is bonded in a 6-coordinate geometry to one O(10), one O(3), two equivalent O(4), and two equivalent O(6) atoms. There are three inequivalent P sites. In the first P site, P(1) is bonded to one O(1), one O(7), and two equivalent O(4) atoms to form PO4 tetrahedra that share  a cornercorner with one Sr(3)O7 pentagonal bipyramid. In the second P site, P(2) is bonded to one O(2), one O(8), and two equivalent O(5) atoms to form PO4 tetrahedra that share corners with three equivalent Sr(3)O7 pentagonal bipyramids. In the third P site, P(3) is bonded to one O(3), one O(9), and two equivalent O(6) atoms to form PO4 tetrahedra that share  an edgeedge with one Sr(3)O7 pentagonal bipyramid. There are ten inequivalent O sites. In the first O site, O(7) is bonded in a distorted single-bond geometry to one Sr(3), two equivalent Sr(1), and one P(1) atom. In the second O site, O(8) is bonded in a 3-coordinate geometry to two equivalent Sr(1) and one P(2) atom. In the third O site, O(9) is bonded in a distorted single-bond geometry to one Sr(2), two equivalent Sr(1), and one P(3) atom. In the fourth O site, O(10) is bonded in a trigonal planar geometry to one Sr(2), one Sr(3), and one Bi(1) atom. In the fifth O site, O(1) is bonded in a distorted single-bond geometry to one Sr(2), two equivalent Sr(1), and one P(1) atom. In the sixth O site, O(2) is bonded in a distorted tetrahedral geometry to one Sr(3), two equivalent Sr(1), and one P(2) atom. In the seventh O site, O(3) is bonded in a distorted single-bond geometry to two equivalent Sr(1), one Bi(1), and one P(3) atom. In the eighth O site, O(4) is bonded in a distorted single-bond geometry to one Sr(1), one Sr(2), one Bi(1), and one P(1) atom. In the ninth O site, O(5) is bonded in a 1-coordinate geometry to one Sr(1), one Sr(2), one Sr(3), and one P(2) atom. In the tenth O site, O(6) is bonded in a distorted single-bond geometry to one Sr(1), one Sr(3), one Bi(1), and one P(3) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Sr4BiP3O13
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.348
_cell_length_b   9.767
_cell_length_c   9.898
_cell_angle_alpha   60.441
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   617.900
_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
  Sr  Sr0  1  0.499  0.342  0.327  1.0
  Sr  Sr1  1  0.999  0.658  0.673  1.0
  Sr  Sr2  1  0.501  0.658  0.673  1.0
  Sr  Sr3  1  0.001  0.342  0.327  1.0
  Sr  Sr4  1  0.250  0.006  0.763  1.0
  Sr  Sr5  1  0.250  0.238  0.011  1.0
  Sr  Sr6  1  0.750  0.994  0.237  1.0
  Sr  Sr7  1  0.750  0.762  0.989  1.0
  Bi  Bi8  1  0.250  0.775  0.232  1.0
  Bi  Bi9  1  0.750  0.225  0.768  1.0
  P  P10  1  0.250  0.968  0.401  1.0
  P  P11  1  0.250  0.630  0.966  1.0
  P  P12  1  0.250  0.396  0.632  1.0
  P  P13  1  0.750  0.032  0.599  1.0
  P  P14  1  0.750  0.370  0.034  1.0
  P  P15  1  0.750  0.604  0.368  1.0
  O  O16  1  0.250  0.881  0.581  1.0
  O  O17  1  0.250  0.534  0.879  1.0
  O  O18  1  0.250  0.579  0.546  1.0
  O  O19  1  0.750  0.119  0.419  1.0
  O  O20  1  0.750  0.466  0.121  1.0
  O  O21  1  0.750  0.421  0.454  1.0
  O  O22  1  0.419  0.912  0.343  1.0
  O  O23  1  0.422  0.736  0.915  1.0
  O  O24  1  0.421  0.337  0.740  1.0
  O  O25  1  0.919  0.088  0.657  1.0
  O  O26  1  0.922  0.264  0.085  1.0
  O  O27  1  0.921  0.663  0.260  1.0
  O  O28  1  0.581  0.088  0.657  1.0
  O  O29  1  0.578  0.264  0.085  1.0
  O  O30  1  0.579  0.663  0.260  1.0
  O  O31  1  0.081  0.912  0.343  1.0
  O  O32  1  0.078  0.736  0.915  1.0
  O  O33  1  0.079  0.337  0.740  1.0
  O  O34  1  0.250  0.149  0.331  1.0
  O  O35  1  0.250  0.517  0.145  1.0
  O  O36  1  0.250  0.330  0.517  1.0
  O  O37  1  0.750  0.851  0.669  1.0
  O  O38  1  0.750  0.483  0.855  1.0
  O  O39  1  0.750  0.670  0.483  1.0
  O  O40  1  0.250  0.982  0.022  1.0
  O  O41  1  0.750  0.018  0.978  1.0
[/CIF]
.