The compound described by NaH(ZnPO4)2 crystallizes in the triclinic P-1 space group. Na(1) is bonded to one O(1), one O(2), one O(3), one O(4), one O(6), and one O(7) atom to form distorted NaO6 octahedra that share  a cornercorner with one P(1)O4 tetrahedra, corners with two equivalent Zn(2)O4 tetrahedra, corners with three equivalent Zn(1)O4 tetrahedra, corners with three equivalent P(2)O4 tetrahedra, and  an edgeedge with one P(1)O4 tetrahedra. There are two inequivalent Zn sites. In the first Zn site, Zn(1) is bonded to one O(3), one O(4), one O(7), and one O(8) atom to form ZnO4 tetrahedra that share corners with three equivalent Na(1)O6 octahedra,  a cornercorner with one Zn(2)O4 tetrahedra, corners with two equivalent P(1)O4 tetrahedra, and corners with two equivalent P(2)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 64-68°. In the second Zn site, Zn(2) is bonded to one O(1), one O(2), one O(5), and one O(8) atom to form ZnO4 tetrahedra that share corners with two equivalent Na(1)O6 octahedra,  a cornercorner with one Zn(1)O4 tetrahedra,  a cornercorner with one P(2)O4 tetrahedra, and corners with three equivalent P(1)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 47-73°. There are two inequivalent P sites. In the first P site, P(1) is bonded to one O(1), one O(2), one O(3), and one O(8) atom to form PO4 tetrahedra that share  a cornercorner with one Na(1)O6 octahedra, corners with two equivalent Zn(1)O4 tetrahedra, corners with three equivalent Zn(2)O4 tetrahedra, and  an edgeedge with one Na(1)O6 octahedra. The corner-sharing octahedral tilt angles are 62°. In the second P site, P(2) is bonded to one O(4), one O(5), one O(6), and one O(7) atom to form PO4 tetrahedra that share corners with three equivalent Na(1)O6 octahedra,  a cornercorner with one Zn(2)O4 tetrahedra, and corners with two equivalent Zn(1)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 51-56°. H(1) is bonded in a distorted linear geometry to one O(5) and one O(6) atom. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to one Na(1), one Zn(2), and one P(1) atom. In the second O site, O(2) is bonded in a 3-coordinate geometry to one Na(1), one Zn(2), and one P(1) atom. In the third O site, O(3) is bonded in a 3-coordinate geometry to one Na(1), one Zn(1), and one P(1) atom. In the fourth O site, O(4) is bonded in a trigonal planar geometry to one Na(1), one Zn(1), and one P(2) atom. In the fifth O site, O(5) is bonded in a distorted trigonal planar geometry to one Zn(2), one P(2), and one H(1) atom. In the sixth O site, O(6) is bonded in a distorted trigonal planar geometry to one Na(1), one P(2), and one H(1) atom. In the seventh O site, O(7) is bonded in a distorted trigonal planar geometry to one Na(1), one Zn(1), and one P(2) atom. In the eighth O site, O(8) is bonded in a distorted trigonal planar geometry to one Zn(1), one Zn(2), and one P(1) atom. is represented by the CIF file [CIF]
data_NaZn2P2HO8
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.182
_cell_length_b   8.738
_cell_length_c   8.970
_cell_angle_alpha   96.989
_cell_angle_beta   100.248
_cell_angle_gamma   106.337
_symmetry_Int_Tables_number   1
_cell_volume   377.210
_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
  Na  Na0  1  0.408  0.187  0.688  1.0
  Na  Na1  1  0.592  0.813  0.312  1.0
  Zn  Zn2  1  0.778  0.887  0.742  1.0
  Zn  Zn3  1  0.222  0.113  0.258  1.0
  Zn  Zn4  1  0.324  0.618  0.892  1.0
  Zn  Zn5  1  0.676  0.382  0.108  1.0
  P  P6  1  0.907  0.749  0.060  1.0
  P  P7  1  0.842  0.246  0.417  1.0
  P  P8  1  0.093  0.251  0.940  1.0
  P  P9  1  0.158  0.754  0.583  1.0
  H  H10  1  0.922  0.431  0.621  1.0
  H  H11  1  0.078  0.569  0.379  1.0
  O  O12  1  0.189  0.729  0.049  1.0
  O  O13  1  0.811  0.271  0.951  1.0
  O  O14  1  0.726  0.615  0.129  1.0
  O  O15  1  0.274  0.385  0.871  1.0
  O  O16  1  0.940  0.911  0.164  1.0
  O  O17  1  0.060  0.089  0.836  1.0
  O  O18  1  0.412  0.903  0.654  1.0
  O  O19  1  0.588  0.097  0.346  1.0
  O  O20  1  0.867  0.383  0.321  1.0
  O  O21  1  0.133  0.617  0.679  1.0
  O  O22  1  0.798  0.315  0.580  1.0
  O  O23  1  0.202  0.685  0.420  1.0
  O  O24  1  0.107  0.197  0.443  1.0
  O  O25  1  0.893  0.803  0.557  1.0
  O  O26  1  0.275  0.262  0.105  1.0
  O  O27  1  0.725  0.738  0.895  1.0
[/CIF]
.
The compound described by NaH(ZnPO4)2 crystallizes in the triclinic P-1 space group. Na(1) is bonded to one O(1), one O(2), one O(3), one O(4), one O(6), and one O(7) atom to form distorted NaO6 octahedra that share  a cornercorner with one P(1)O4 tetrahedra, corners with two equivalent Zn(2)O4 tetrahedra, corners with three equivalent Zn(1)O4 tetrahedra, corners with three equivalent P(2)O4 tetrahedra, and  an edgeedge with one P(1)O4 tetrahedra. There are two inequivalent Zn sites. In the first Zn site, Zn(1) is bonded to one O(3), one O(4), one O(7), and one O(8) atom to form ZnO4 tetrahedra that share corners with three equivalent Na(1)O6 octahedra,  a cornercorner with one Zn(2)O4 tetrahedra, corners with two equivalent P(1)O4 tetrahedra, and corners with two equivalent P(2)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 64-68°. In the second Zn site, Zn(2) is bonded to one O(1), one O(2), one O(5), and one O(8) atom to form ZnO4 tetrahedra that share corners with two equivalent Na(1)O6 octahedra,  a cornercorner with one Zn(1)O4 tetrahedra,  a cornercorner with one P(2)O4 tetrahedra, and corners with three equivalent P(1)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 47-73°. There are two inequivalent P sites. In the first P site, P(1) is bonded to one O(1), one O(2), one O(3), and one O(8) atom to form PO4 tetrahedra that share  a cornercorner with one Na(1)O6 octahedra, corners with two equivalent Zn(1)O4 tetrahedra, corners with three equivalent Zn(2)O4 tetrahedra, and  an edgeedge with one Na(1)O6 octahedra. The corner-sharing octahedral tilt angles are 62°. In the second P site, P(2) is bonded to one O(4), one O(5), one O(6), and one O(7) atom to form PO4 tetrahedra that share corners with three equivalent Na(1)O6 octahedra,  a cornercorner with one Zn(2)O4 tetrahedra, and corners with two equivalent Zn(1)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 51-56°. H(1) is bonded in a distorted linear geometry to one O(5) and one O(6) atom. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to one Na(1), one Zn(2), and one P(1) atom. In the second O site, O(2) is bonded in a 3-coordinate geometry to one Na(1), one Zn(2), and one P(1) atom. In the third O site, O(3) is bonded in a 3-coordinate geometry to one Na(1), one Zn(1), and one P(1) atom. In the fourth O site, O(4) is bonded in a trigonal planar geometry to one Na(1), one Zn(1), and one P(2) atom. In the fifth O site, O(5) is bonded in a distorted trigonal planar geometry to one Zn(2), one P(2), and one H(1) atom. In the sixth O site, O(6) is bonded in a distorted trigonal planar geometry to one Na(1), one P(2), and one H(1) atom. In the seventh O site, O(7) is bonded in a distorted trigonal planar geometry to one Na(1), one Zn(1), and one P(2) atom. In the eighth O site, O(8) is bonded in a distorted trigonal planar geometry to one Zn(1), one Zn(2), and one P(1) atom. is represented by the CIF file [CIF]
data_NaZn2P2HO8
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.182
_cell_length_b   8.738
_cell_length_c   8.970
_cell_angle_alpha   96.989
_cell_angle_beta   100.248
_cell_angle_gamma   106.337
_symmetry_Int_Tables_number   1
_cell_volume   377.210
_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
  Na  Na0  1  0.408  0.187  0.688  1.0
  Na  Na1  1  0.592  0.813  0.312  1.0
  Zn  Zn2  1  0.778  0.887  0.742  1.0
  Zn  Zn3  1  0.222  0.113  0.258  1.0
  Zn  Zn4  1  0.324  0.618  0.892  1.0
  Zn  Zn5  1  0.676  0.382  0.108  1.0
  P  P6  1  0.907  0.749  0.060  1.0
  P  P7  1  0.842  0.246  0.417  1.0
  P  P8  1  0.093  0.251  0.940  1.0
  P  P9  1  0.158  0.754  0.583  1.0
  H  H10  1  0.922  0.431  0.621  1.0
  H  H11  1  0.078  0.569  0.379  1.0
  O  O12  1  0.189  0.729  0.049  1.0
  O  O13  1  0.811  0.271  0.951  1.0
  O  O14  1  0.726  0.615  0.129  1.0
  O  O15  1  0.274  0.385  0.871  1.0
  O  O16  1  0.940  0.911  0.164  1.0
  O  O17  1  0.060  0.089  0.836  1.0
  O  O18  1  0.412  0.903  0.654  1.0
  O  O19  1  0.588  0.097  0.346  1.0
  O  O20  1  0.867  0.383  0.321  1.0
  O  O21  1  0.133  0.617  0.679  1.0
  O  O22  1  0.798  0.315  0.580  1.0
  O  O23  1  0.202  0.685  0.420  1.0
  O  O24  1  0.107  0.197  0.443  1.0
  O  O25  1  0.893  0.803  0.557  1.0
  O  O26  1  0.275  0.262  0.105  1.0
  O  O27  1  0.725  0.738  0.895  1.0
[/CIF]
.