The material described by V2Zn3(P2O9)2 crystallizes in the monoclinic Cm space group. V(1) is bonded to one O(1), one O(3), one O(4), one O(5), and one O(9) atom to form distorted VO5 trigonal bipyramids that share  a cornercorner with one P(2)O4 tetrahedra,  a cornercorner with one P(3)O4 tetrahedra, corners with two equivalent P(1)O4 tetrahedra, and corners with two equivalent Zn(2)O5 trigonal bipyramids. There are two inequivalent Zn sites. In the first Zn site, Zn(1) is bonded in a 5-coordinate geometry to one O(6), two equivalent O(2), and two equivalent O(5) atoms. In the second Zn site, Zn(2) is bonded to one O(10), one O(4), one O(7), one O(8), and one O(9) atom to form distorted ZnO5 trigonal bipyramids that share  a cornercorner with one P(1)O4 tetrahedra,  a cornercorner with one P(2)O4 tetrahedra,  a cornercorner with one P(3)O4 tetrahedra, corners with two equivalent V(1)O5 trigonal bipyramids,  an edgeedge with one P(1)O4 tetrahedra, and  an edgeedge with one Zn(2)O5 trigonal bipyramid. There are three inequivalent P sites. In the first P site, P(1) is bonded to one O(2), one O(4), one O(8), and one O(9) atom to form PO4 tetrahedra that share  a cornercorner with one Zn(2)O5 trigonal bipyramid, corners with two equivalent V(1)O5 trigonal bipyramids, and  an edgeedge with one Zn(2)O5 trigonal bipyramid. In the second P site, P(2) is bonded to one O(10), one O(6), and two equivalent O(3) atoms to form PO4 tetrahedra that share corners with two equivalent V(1)O5 trigonal bipyramids and corners with two equivalent Zn(2)O5 trigonal bipyramids. In the third P site, P(3) is bonded to one O(11), one O(7), and two equivalent O(5) atoms to form PO4 tetrahedra that share corners with two equivalent V(1)O5 trigonal bipyramids and corners with two equivalent Zn(2)O5 trigonal bipyramids. There are eleven inequivalent O sites. In the first O site, O(10) is bonded in a distorted trigonal planar geometry to two equivalent Zn(2) and one P(2) atom. In the second O site, O(11) is bonded in a single-bond geometry to one P(3) atom. In the third O site, O(1) is bonded in a single-bond geometry to one V(1) atom. In the fourth O site, O(2) is bonded in a bent 120 degrees geometry to one Zn(1) and one P(1) atom. In the fifth O site, O(3) is bonded in a distorted bent 150 degrees geometry to one V(1) and one P(2) atom. In the sixth O site, O(4) is bonded in a 3-coordinate geometry to one V(1), one Zn(2), and one P(1) atom. In the seventh O site, O(5) is bonded in a 3-coordinate geometry to one V(1), one Zn(1), and one P(3) atom. In the eighth O site, O(6) is bonded in a linear geometry to one Zn(1) and one P(2) atom. In the ninth O site, O(7) is bonded in a distorted trigonal planar geometry to two equivalent Zn(2) and one P(3) atom. In the tenth O site, O(8) is bonded in a linear geometry to one Zn(2) and one P(1) atom. In the eleventh O site, O(9) is bonded in a 3-coordinate geometry to one V(1), one Zn(2), and one P(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_V2Zn3(P2O9)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.843
_cell_length_b   7.843
_cell_length_c   7.804
_cell_angle_alpha   68.854
_cell_angle_beta   68.854
_cell_angle_gamma   106.304
_symmetry_Int_Tables_number   1
_cell_volume   368.101
_cell_formula_units_Z   1
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
  V  V0  1  0.607  0.105  0.000  1.0
  V  V1  1  0.105  0.607  0.000  1.0
  Zn  Zn2  1  0.386  0.386  0.287  1.0
  Zn  Zn3  1  0.650  0.887  0.500  1.0
  Zn  Zn4  1  0.887  0.650  0.500  1.0
  P  P5  1  0.307  0.929  0.500  1.0
  P  P6  1  0.818  0.818  0.104  1.0
  P  P7  1  0.422  0.422  0.882  1.0
  P  P8  1  0.929  0.307  0.500  1.0
  O  O9  1  0.936  0.434  0.002  1.0
  O  O10  1  0.129  0.345  0.497  1.0
  O  O11  1  0.018  0.811  0.969  1.0
  O  O12  1  0.811  0.018  0.969  1.0
  O  O13  1  0.785  0.321  0.696  1.0
  O  O14  1  0.434  0.936  0.002  1.0
  O  O15  1  0.487  0.288  0.034  1.0
  O  O16  1  0.626  0.626  0.188  1.0
  O  O17  1  0.631  0.631  0.713  1.0
  O  O18  1  0.288  0.487  0.034  1.0
  O  O19  1  0.815  0.119  0.500  1.0
  O  O20  1  0.321  0.785  0.696  1.0
  O  O21  1  0.516  0.977  0.304  1.0
  O  O22  1  0.345  0.129  0.497  1.0
  O  O23  1  0.977  0.516  0.304  1.0
  O  O24  1  0.844  0.844  0.283  1.0
  O  O25  1  0.315  0.315  0.801  1.0
  O  O26  1  0.119  0.815  0.500  1.0
[/CIF]
.
The material described by V2Zn3(P2O9)2 crystallizes in the monoclinic Cm space group. V(1) is bonded to one O(1), one O(3), one O(4), one O(5), and one O(9) atom to form distorted VO5 trigonal bipyramids that share  a cornercorner with one P(2)O4 tetrahedra,  a cornercorner with one P(3)O4 tetrahedra, corners with two equivalent P(1)O4 tetrahedra, and corners with two equivalent Zn(2)O5 trigonal bipyramids. There are two inequivalent Zn sites. In the first Zn site, Zn(1) is bonded in a 5-coordinate geometry to one O(6), two equivalent O(2), and two equivalent O(5) atoms. In the second Zn site, Zn(2) is bonded to one O(10), one O(4), one O(7), one O(8), and one O(9) atom to form distorted ZnO5 trigonal bipyramids that share  a cornercorner with one P(1)O4 tetrahedra,  a cornercorner with one P(2)O4 tetrahedra,  a cornercorner with one P(3)O4 tetrahedra, corners with two equivalent V(1)O5 trigonal bipyramids,  an edgeedge with one P(1)O4 tetrahedra, and  an edgeedge with one Zn(2)O5 trigonal bipyramid. There are three inequivalent P sites. In the first P site, P(1) is bonded to one O(2), one O(4), one O(8), and one O(9) atom to form PO4 tetrahedra that share  a cornercorner with one Zn(2)O5 trigonal bipyramid, corners with two equivalent V(1)O5 trigonal bipyramids, and  an edgeedge with one Zn(2)O5 trigonal bipyramid. In the second P site, P(2) is bonded to one O(10), one O(6), and two equivalent O(3) atoms to form PO4 tetrahedra that share corners with two equivalent V(1)O5 trigonal bipyramids and corners with two equivalent Zn(2)O5 trigonal bipyramids. In the third P site, P(3) is bonded to one O(11), one O(7), and two equivalent O(5) atoms to form PO4 tetrahedra that share corners with two equivalent V(1)O5 trigonal bipyramids and corners with two equivalent Zn(2)O5 trigonal bipyramids. There are eleven inequivalent O sites. In the first O site, O(10) is bonded in a distorted trigonal planar geometry to two equivalent Zn(2) and one P(2) atom. In the second O site, O(11) is bonded in a single-bond geometry to one P(3) atom. In the third O site, O(1) is bonded in a single-bond geometry to one V(1) atom. In the fourth O site, O(2) is bonded in a bent 120 degrees geometry to one Zn(1) and one P(1) atom. In the fifth O site, O(3) is bonded in a distorted bent 150 degrees geometry to one V(1) and one P(2) atom. In the sixth O site, O(4) is bonded in a 3-coordinate geometry to one V(1), one Zn(2), and one P(1) atom. In the seventh O site, O(5) is bonded in a 3-coordinate geometry to one V(1), one Zn(1), and one P(3) atom. In the eighth O site, O(6) is bonded in a linear geometry to one Zn(1) and one P(2) atom. In the ninth O site, O(7) is bonded in a distorted trigonal planar geometry to two equivalent Zn(2) and one P(3) atom. In the tenth O site, O(8) is bonded in a linear geometry to one Zn(2) and one P(1) atom. In the eleventh O site, O(9) is bonded in a 3-coordinate geometry to one V(1), one Zn(2), and one P(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_V2Zn3(P2O9)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.843
_cell_length_b   7.843
_cell_length_c   7.804
_cell_angle_alpha   68.854
_cell_angle_beta   68.854
_cell_angle_gamma   106.304
_symmetry_Int_Tables_number   1
_cell_volume   368.101
_cell_formula_units_Z   1
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
  V  V0  1  0.607  0.105  0.000  1.0
  V  V1  1  0.105  0.607  0.000  1.0
  Zn  Zn2  1  0.386  0.386  0.287  1.0
  Zn  Zn3  1  0.650  0.887  0.500  1.0
  Zn  Zn4  1  0.887  0.650  0.500  1.0
  P  P5  1  0.307  0.929  0.500  1.0
  P  P6  1  0.818  0.818  0.104  1.0
  P  P7  1  0.422  0.422  0.882  1.0
  P  P8  1  0.929  0.307  0.500  1.0
  O  O9  1  0.936  0.434  0.002  1.0
  O  O10  1  0.129  0.345  0.497  1.0
  O  O11  1  0.018  0.811  0.969  1.0
  O  O12  1  0.811  0.018  0.969  1.0
  O  O13  1  0.785  0.321  0.696  1.0
  O  O14  1  0.434  0.936  0.002  1.0
  O  O15  1  0.487  0.288  0.034  1.0
  O  O16  1  0.626  0.626  0.188  1.0
  O  O17  1  0.631  0.631  0.713  1.0
  O  O18  1  0.288  0.487  0.034  1.0
  O  O19  1  0.815  0.119  0.500  1.0
  O  O20  1  0.321  0.785  0.696  1.0
  O  O21  1  0.516  0.977  0.304  1.0
  O  O22  1  0.345  0.129  0.497  1.0
  O  O23  1  0.977  0.516  0.304  1.0
  O  O24  1  0.844  0.844  0.283  1.0
  O  O25  1  0.315  0.315  0.801  1.0
  O  O26  1  0.119  0.815  0.500  1.0
[/CIF]
.