The structure described by ZnBi3P3O13 crystallizes in the monoclinic P2_1/m space group. Zn(1) is bonded in a distorted trigonal non-coplanar geometry to one O(9) and two equivalent O(8) atoms. There are three inequivalent Bi sites. In the first Bi site, Bi(1) is bonded in a 5-coordinate geometry to one O(1), one O(5), one O(6), and two equivalent O(8) atoms. In the second Bi site, Bi(2) is bonded to one O(1), one O(3), one O(7), and two equivalent O(2) atoms to form distorted BiO5 trigonal bipyramids that share  a cornercorner with one P(2)O4 tetrahedra,  a cornercorner with one P(3)O4 tetrahedra, and corners with three equivalent P(1)O4 tetrahedra. In the third Bi site, Bi(3) is bonded to two equivalent O(10), two equivalent O(4), and two equivalent O(6) atoms to form BiO6 octahedra that share corners with two equivalent P(2)O4 tetrahedra, corners with two equivalent P(3)O4 tetrahedra, and edges with two equivalent Bi(3)O6 octahedra. There are three inequivalent P sites. In the first P site, P(1) is bonded to one O(5), one O(7), and two equivalent O(2) atoms to form PO4 tetrahedra that share corners with three equivalent Bi(2)O5 trigonal bipyramids. In the second P site, P(2) is bonded to one O(10), one O(3), and two equivalent O(8) atoms to form PO4 tetrahedra that share corners with two equivalent Bi(3)O6 octahedra and  a cornercorner with one Bi(2)O5 trigonal bipyramid. The corner-sharing octahedral tilt angles are 50°. In the third P site, P(3) is bonded to one O(1), one O(9), and two equivalent O(4) atoms to form PO4 tetrahedra that share corners with two equivalent Bi(3)O6 octahedra and  a cornercorner with one Bi(2)O5 trigonal bipyramid. The corner-sharing octahedral tilt angles are 47°. There are ten inequivalent O sites. In the first O site, O(10) is bonded in a distorted single-bond geometry to two equivalent Bi(3) and one P(2) atom. In the second O site, O(1) is bonded in a distorted trigonal planar geometry to one Bi(1), one Bi(2), and one P(3) atom. In the third O site, O(2) is bonded in a distorted bent 120 degrees geometry to one Bi(2) and one P(1) atom. In the fourth O site, O(3) is bonded in a linear geometry to one Bi(2) and one P(2) atom. In the fifth O site, O(4) is bonded in a distorted single-bond geometry to one Bi(3) and one P(3) atom. In the sixth O site, O(5) is bonded in a distorted bent 150 degrees geometry to one Bi(1) and one P(1) atom. In the seventh O site, O(6) is bonded in a trigonal planar geometry to one Bi(1) and two equivalent Bi(3) atoms. In the eighth O site, O(7) is bonded in a bent 150 degrees geometry to one Bi(2) and one P(1) atom. In the ninth O site, O(8) is bonded in a 3-coordinate geometry to one Zn(1), one Bi(1), and one P(2) atom. In the tenth O site, O(9) is bonded in a bent 120 degrees geometry to one Zn(1) and one P(3) atom. is represented by the CIF file [CIF]
data_ZnBi3P3O13
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.141
_cell_length_b   8.476
_cell_length_c   11.003
_cell_angle_alpha   78.750
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   653.136
_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
  Zn  Zn0  1  0.750  0.438  0.158  1.0
  Zn  Zn1  1  0.250  0.562  0.842  1.0
  Bi  Bi2  1  0.250  0.643  0.233  1.0
  Bi  Bi3  1  0.750  0.357  0.767  1.0
  Bi  Bi4  1  0.250  0.199  0.433  1.0
  Bi  Bi5  1  0.500  0.000  0.000  1.0
  Bi  Bi6  1  0.750  0.801  0.567  1.0
  Bi  Bi7  1  0.000  0.000  0.000  1.0
  P  P8  1  0.250  0.771  0.525  1.0
  P  P9  1  0.750  0.229  0.475  1.0
  P  P10  1  0.250  0.279  0.760  1.0
  P  P11  1  0.750  0.721  0.240  1.0
  P  P12  1  0.750  0.675  0.901  1.0
  P  P13  1  0.250  0.325  0.099  1.0
  O  O14  1  0.750  0.644  0.764  1.0
  O  O15  1  0.575  0.249  0.390  1.0
  O  O16  1  0.250  0.236  0.633  1.0
  O  O17  1  0.567  0.764  0.920  1.0
  O  O18  1  0.750  0.357  0.560  1.0
  O  O19  1  0.750  0.123  0.889  1.0
  O  O20  1  0.250  0.643  0.440  1.0
  O  O21  1  0.067  0.236  0.080  1.0
  O  O22  1  0.250  0.939  0.434  1.0
  O  O23  1  0.750  0.061  0.566  1.0
  O  O24  1  0.082  0.390  0.782  1.0
  O  O25  1  0.250  0.877  0.111  1.0
  O  O26  1  0.582  0.610  0.218  1.0
  O  O27  1  0.750  0.497  0.978  1.0
  O  O28  1  0.750  0.764  0.367  1.0
  O  O29  1  0.433  0.236  0.080  1.0
  O  O30  1  0.925  0.249  0.390  1.0
  O  O31  1  0.425  0.751  0.610  1.0
  O  O32  1  0.418  0.390  0.782  1.0
  O  O33  1  0.250  0.356  0.236  1.0
  O  O34  1  0.750  0.880  0.140  1.0
  O  O35  1  0.250  0.120  0.860  1.0
  O  O36  1  0.918  0.610  0.218  1.0
  O  O37  1  0.933  0.764  0.920  1.0
  O  O38  1  0.075  0.751  0.610  1.0
  O  O39  1  0.250  0.503  0.022  1.0
[/CIF]
.
The structure described by ZnBi3P3O13 crystallizes in the monoclinic P2_1/m space group. Zn(1) is bonded in a distorted trigonal non-coplanar geometry to one O(9) and two equivalent O(8) atoms. There are three inequivalent Bi sites. In the first Bi site, Bi(1) is bonded in a 5-coordinate geometry to one O(1), one O(5), one O(6), and two equivalent O(8) atoms. In the second Bi site, Bi(2) is bonded to one O(1), one O(3), one O(7), and two equivalent O(2) atoms to form distorted BiO5 trigonal bipyramids that share  a cornercorner with one P(2)O4 tetrahedra,  a cornercorner with one P(3)O4 tetrahedra, and corners with three equivalent P(1)O4 tetrahedra. In the third Bi site, Bi(3) is bonded to two equivalent O(10), two equivalent O(4), and two equivalent O(6) atoms to form BiO6 octahedra that share corners with two equivalent P(2)O4 tetrahedra, corners with two equivalent P(3)O4 tetrahedra, and edges with two equivalent Bi(3)O6 octahedra. There are three inequivalent P sites. In the first P site, P(1) is bonded to one O(5), one O(7), and two equivalent O(2) atoms to form PO4 tetrahedra that share corners with three equivalent Bi(2)O5 trigonal bipyramids. In the second P site, P(2) is bonded to one O(10), one O(3), and two equivalent O(8) atoms to form PO4 tetrahedra that share corners with two equivalent Bi(3)O6 octahedra and  a cornercorner with one Bi(2)O5 trigonal bipyramid. The corner-sharing octahedral tilt angles are 50°. In the third P site, P(3) is bonded to one O(1), one O(9), and two equivalent O(4) atoms to form PO4 tetrahedra that share corners with two equivalent Bi(3)O6 octahedra and  a cornercorner with one Bi(2)O5 trigonal bipyramid. The corner-sharing octahedral tilt angles are 47°. There are ten inequivalent O sites. In the first O site, O(10) is bonded in a distorted single-bond geometry to two equivalent Bi(3) and one P(2) atom. In the second O site, O(1) is bonded in a distorted trigonal planar geometry to one Bi(1), one Bi(2), and one P(3) atom. In the third O site, O(2) is bonded in a distorted bent 120 degrees geometry to one Bi(2) and one P(1) atom. In the fourth O site, O(3) is bonded in a linear geometry to one Bi(2) and one P(2) atom. In the fifth O site, O(4) is bonded in a distorted single-bond geometry to one Bi(3) and one P(3) atom. In the sixth O site, O(5) is bonded in a distorted bent 150 degrees geometry to one Bi(1) and one P(1) atom. In the seventh O site, O(6) is bonded in a trigonal planar geometry to one Bi(1) and two equivalent Bi(3) atoms. In the eighth O site, O(7) is bonded in a bent 150 degrees geometry to one Bi(2) and one P(1) atom. In the ninth O site, O(8) is bonded in a 3-coordinate geometry to one Zn(1), one Bi(1), and one P(2) atom. In the tenth O site, O(9) is bonded in a bent 120 degrees geometry to one Zn(1) and one P(3) atom. is represented by the CIF file [CIF]
data_ZnBi3P3O13
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.141
_cell_length_b   8.476
_cell_length_c   11.003
_cell_angle_alpha   78.750
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   653.136
_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
  Zn  Zn0  1  0.750  0.438  0.158  1.0
  Zn  Zn1  1  0.250  0.562  0.842  1.0
  Bi  Bi2  1  0.250  0.643  0.233  1.0
  Bi  Bi3  1  0.750  0.357  0.767  1.0
  Bi  Bi4  1  0.250  0.199  0.433  1.0
  Bi  Bi5  1  0.500  0.000  0.000  1.0
  Bi  Bi6  1  0.750  0.801  0.567  1.0
  Bi  Bi7  1  0.000  0.000  0.000  1.0
  P  P8  1  0.250  0.771  0.525  1.0
  P  P9  1  0.750  0.229  0.475  1.0
  P  P10  1  0.250  0.279  0.760  1.0
  P  P11  1  0.750  0.721  0.240  1.0
  P  P12  1  0.750  0.675  0.901  1.0
  P  P13  1  0.250  0.325  0.099  1.0
  O  O14  1  0.750  0.644  0.764  1.0
  O  O15  1  0.575  0.249  0.390  1.0
  O  O16  1  0.250  0.236  0.633  1.0
  O  O17  1  0.567  0.764  0.920  1.0
  O  O18  1  0.750  0.357  0.560  1.0
  O  O19  1  0.750  0.123  0.889  1.0
  O  O20  1  0.250  0.643  0.440  1.0
  O  O21  1  0.067  0.236  0.080  1.0
  O  O22  1  0.250  0.939  0.434  1.0
  O  O23  1  0.750  0.061  0.566  1.0
  O  O24  1  0.082  0.390  0.782  1.0
  O  O25  1  0.250  0.877  0.111  1.0
  O  O26  1  0.582  0.610  0.218  1.0
  O  O27  1  0.750  0.497  0.978  1.0
  O  O28  1  0.750  0.764  0.367  1.0
  O  O29  1  0.433  0.236  0.080  1.0
  O  O30  1  0.925  0.249  0.390  1.0
  O  O31  1  0.425  0.751  0.610  1.0
  O  O32  1  0.418  0.390  0.782  1.0
  O  O33  1  0.250  0.356  0.236  1.0
  O  O34  1  0.750  0.880  0.140  1.0
  O  O35  1  0.250  0.120  0.860  1.0
  O  O36  1  0.918  0.610  0.218  1.0
  O  O37  1  0.933  0.764  0.920  1.0
  O  O38  1  0.075  0.751  0.610  1.0
  O  O39  1  0.250  0.503  0.022  1.0
[/CIF]
.