The structure described by FeZn2P2(H2O3)4 crystallizes in the monoclinic P2_1/c space group. Fe(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms to form FeO6 octahedra that share corners with two equivalent P(1)O4 tetrahedra. Zn(1) is bonded to one O(4), one O(5), and two equivalent O(6) atoms to form ZnO4 tetrahedra that share corners with two equivalent Zn(1)O4 tetrahedra and corners with four equivalent P(1)O4 tetrahedra. P(1) is bonded to one O(3), one O(4), one O(5), and one O(6) atom to form PO4 tetrahedra that share  a cornercorner with one Fe(1)O6 octahedra and corners with four equivalent Zn(1)O4 tetrahedra. The corner-sharing octahedral tilt angles are 50°. There are four inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one O(1) atom. In the second H site, H(2) is bonded in a single-bond geometry to one O(1) and one O(3) atom. In the third H site, H(3) is bonded in a distorted single-bond geometry to one O(2) and one O(5) atom. In the fourth H site, H(4) is bonded in a single-bond geometry to one O(2) atom. There are six inequivalent O sites. In the first O site, O(3) is bonded in a 3-coordinate geometry to one Fe(1), one P(1), and one H(2) atom. In the second O site, O(4) is bonded in a distorted bent 150 degrees geometry to one Zn(1) and one P(1) atom. In the third O site, O(5) is bonded in a distorted trigonal planar geometry to one Zn(1), one P(1), and one H(3) atom. In the fourth O site, O(6) is bonded in a trigonal planar geometry to two equivalent Zn(1) and one P(1) atom. In the fifth O site, O(1) is bonded in a distorted water-like geometry to one Fe(1), one H(1), and one H(2) atom. In the sixth O site, O(2) is bonded in a distorted water-like geometry to one Fe(1), one H(3), and one H(4) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Zn2FeP2(H2O3)4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.126
_cell_length_b   10.444
_cell_length_c   10.740
_cell_angle_alpha   59.497
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   495.415
_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  0.805  0.500  0.856  1.0
  Zn  Zn1  1  0.305  0.500  0.644  1.0
  Zn  Zn2  1  0.195  0.500  0.144  1.0
  Zn  Zn3  1  0.695  0.500  0.356  1.0
  Fe  Fe4  1  0.500  0.000  0.500  1.0
  Fe  Fe5  1  0.000  0.000  0.000  1.0
  P  P6  1  0.784  0.309  0.692  1.0
  P  P7  1  0.284  0.691  0.808  1.0
  P  P8  1  0.216  0.691  0.308  1.0
  P  P9  1  0.716  0.309  0.192  1.0
  H  H10  1  0.784  0.045  0.703  1.0
  H  H11  1  0.284  0.955  0.797  1.0
  H  H12  1  0.216  0.955  0.297  1.0
  H  H13  1  0.716  0.045  0.203  1.0
  H  H14  1  0.950  0.941  0.662  1.0
  H  H15  1  0.450  0.059  0.838  1.0
  H  H16  1  0.050  0.059  0.338  1.0
  H  H17  1  0.550  0.941  0.162  1.0
  H  H18  1  0.887  0.760  0.966  1.0
  H  H19  1  0.387  0.240  0.534  1.0
  H  H20  1  0.113  0.240  0.034  1.0
  H  H21  1  0.613  0.760  0.466  1.0
  H  H22  1  0.612  0.818  0.991  1.0
  H  H23  1  0.112  0.182  0.509  1.0
  H  H24  1  0.388  0.182  0.009  1.0
  H  H25  1  0.888  0.818  0.491  1.0
  O  O26  1  0.801  0.012  0.632  1.0
  O  O27  1  0.301  0.988  0.868  1.0
  O  O28  1  0.199  0.988  0.368  1.0
  O  O29  1  0.699  0.012  0.132  1.0
  O  O30  1  0.800  0.817  0.006  1.0
  O  O31  1  0.300  0.183  0.494  1.0
  O  O32  1  0.200  0.183  0.994  1.0
  O  O33  1  0.700  0.817  0.506  1.0
  O  O34  1  0.754  0.143  0.809  1.0
  O  O35  1  0.254  0.857  0.691  1.0
  O  O36  1  0.246  0.857  0.191  1.0
  O  O37  1  0.746  0.143  0.309  1.0
  O  O38  1  0.571  0.650  0.844  1.0
  O  O39  1  0.071  0.350  0.656  1.0
  O  O40  1  0.429  0.350  0.156  1.0
  O  O41  1  0.929  0.650  0.344  1.0
  O  O42  1  0.629  0.338  0.555  1.0
  O  O43  1  0.129  0.662  0.945  1.0
  O  O44  1  0.371  0.662  0.445  1.0
  O  O45  1  0.871  0.338  0.055  1.0
  O  O46  1  0.650  0.412  0.744  1.0
  O  O47  1  0.150  0.588  0.756  1.0
  O  O48  1  0.350  0.588  0.256  1.0
  O  O49  1  0.850  0.412  0.244  1.0
[/CIF]
.
The structure described by FeZn2P2(H2O3)4 crystallizes in the monoclinic P2_1/c space group. Fe(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms to form FeO6 octahedra that share corners with two equivalent P(1)O4 tetrahedra. Zn(1) is bonded to one O(4), one O(5), and two equivalent O(6) atoms to form ZnO4 tetrahedra that share corners with two equivalent Zn(1)O4 tetrahedra and corners with four equivalent P(1)O4 tetrahedra. P(1) is bonded to one O(3), one O(4), one O(5), and one O(6) atom to form PO4 tetrahedra that share  a cornercorner with one Fe(1)O6 octahedra and corners with four equivalent Zn(1)O4 tetrahedra. The corner-sharing octahedral tilt angles are 50°. There are four inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one O(1) atom. In the second H site, H(2) is bonded in a single-bond geometry to one O(1) and one O(3) atom. In the third H site, H(3) is bonded in a distorted single-bond geometry to one O(2) and one O(5) atom. In the fourth H site, H(4) is bonded in a single-bond geometry to one O(2) atom. There are six inequivalent O sites. In the first O site, O(3) is bonded in a 3-coordinate geometry to one Fe(1), one P(1), and one H(2) atom. In the second O site, O(4) is bonded in a distorted bent 150 degrees geometry to one Zn(1) and one P(1) atom. In the third O site, O(5) is bonded in a distorted trigonal planar geometry to one Zn(1), one P(1), and one H(3) atom. In the fourth O site, O(6) is bonded in a trigonal planar geometry to two equivalent Zn(1) and one P(1) atom. In the fifth O site, O(1) is bonded in a distorted water-like geometry to one Fe(1), one H(1), and one H(2) atom. In the sixth O site, O(2) is bonded in a distorted water-like geometry to one Fe(1), one H(3), and one H(4) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Zn2FeP2(H2O3)4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.126
_cell_length_b   10.444
_cell_length_c   10.740
_cell_angle_alpha   59.497
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   495.415
_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  0.805  0.500  0.856  1.0
  Zn  Zn1  1  0.305  0.500  0.644  1.0
  Zn  Zn2  1  0.195  0.500  0.144  1.0
  Zn  Zn3  1  0.695  0.500  0.356  1.0
  Fe  Fe4  1  0.500  0.000  0.500  1.0
  Fe  Fe5  1  0.000  0.000  0.000  1.0
  P  P6  1  0.784  0.309  0.692  1.0
  P  P7  1  0.284  0.691  0.808  1.0
  P  P8  1  0.216  0.691  0.308  1.0
  P  P9  1  0.716  0.309  0.192  1.0
  H  H10  1  0.784  0.045  0.703  1.0
  H  H11  1  0.284  0.955  0.797  1.0
  H  H12  1  0.216  0.955  0.297  1.0
  H  H13  1  0.716  0.045  0.203  1.0
  H  H14  1  0.950  0.941  0.662  1.0
  H  H15  1  0.450  0.059  0.838  1.0
  H  H16  1  0.050  0.059  0.338  1.0
  H  H17  1  0.550  0.941  0.162  1.0
  H  H18  1  0.887  0.760  0.966  1.0
  H  H19  1  0.387  0.240  0.534  1.0
  H  H20  1  0.113  0.240  0.034  1.0
  H  H21  1  0.613  0.760  0.466  1.0
  H  H22  1  0.612  0.818  0.991  1.0
  H  H23  1  0.112  0.182  0.509  1.0
  H  H24  1  0.388  0.182  0.009  1.0
  H  H25  1  0.888  0.818  0.491  1.0
  O  O26  1  0.801  0.012  0.632  1.0
  O  O27  1  0.301  0.988  0.868  1.0
  O  O28  1  0.199  0.988  0.368  1.0
  O  O29  1  0.699  0.012  0.132  1.0
  O  O30  1  0.800  0.817  0.006  1.0
  O  O31  1  0.300  0.183  0.494  1.0
  O  O32  1  0.200  0.183  0.994  1.0
  O  O33  1  0.700  0.817  0.506  1.0
  O  O34  1  0.754  0.143  0.809  1.0
  O  O35  1  0.254  0.857  0.691  1.0
  O  O36  1  0.246  0.857  0.191  1.0
  O  O37  1  0.746  0.143  0.309  1.0
  O  O38  1  0.571  0.650  0.844  1.0
  O  O39  1  0.071  0.350  0.656  1.0
  O  O40  1  0.429  0.350  0.156  1.0
  O  O41  1  0.929  0.650  0.344  1.0
  O  O42  1  0.629  0.338  0.555  1.0
  O  O43  1  0.129  0.662  0.945  1.0
  O  O44  1  0.371  0.662  0.445  1.0
  O  O45  1  0.871  0.338  0.055  1.0
  O  O46  1  0.650  0.412  0.744  1.0
  O  O47  1  0.150  0.588  0.756  1.0
  O  O48  1  0.350  0.588  0.256  1.0
  O  O49  1  0.850  0.412  0.244  1.0
[/CIF]
.