The crystal structure described by Fe2Zn(AsO5)2(O2)2 crystallizes in the monoclinic P2_1/c space group. The structure consists of four hydrogen peroxide molecules inside a Fe2Zn(AsO5)2 framework. In the Fe2Zn(AsO5)2 framework, Fe(1) is bonded to one O(2), one O(4), two equivalent O(1), and two equivalent O(5) atoms to form FeO6 octahedra that share corners with two equivalent Fe(1)O6 octahedra, corners with four equivalent As(1)O4 tetrahedra, and  an edgeedge with one Fe(1)O6 octahedra. The corner-sharing octahedral tilt angles are 48°. Zn(1) is bonded in a linear geometry to two equivalent O(3) atoms. As(1) is bonded to one O(1), one O(2), one O(3), and one O(4) atom to form AsO4 tetrahedra that share corners with four equivalent Fe(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 55-63°. There are five inequivalent O sites. In the first O site, O(1) is bonded in a trigonal planar geometry to two equivalent Fe(1) and one As(1) atom. In the second O site, O(2) is bonded in a bent 120 degrees geometry to one Fe(1) and one As(1) atom. In the third O site, O(3) is bonded in a bent 120 degrees geometry to one Zn(1) and one As(1) atom. In the fourth O site, O(4) is bonded in a bent 120 degrees geometry to one Fe(1) and one As(1) atom. In the fifth O site, O(5) is bonded in a bent 120 degrees geometry to two equivalent Fe(1) atoms. is represented by the CIF card [CIF]
data_ZnFe2(AsO7)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.808
_cell_length_b   5.594
_cell_length_c   10.006
_cell_angle_alpha   89.084
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   548.914
_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  0.000  0.000  0.000  1.0
  Zn  Zn1  1  0.500  0.500  0.000  1.0
  Fe  Fe2  1  0.143  0.657  0.452  1.0
  Fe  Fe3  1  0.643  0.843  0.548  1.0
  Fe  Fe4  1  0.857  0.343  0.548  1.0
  Fe  Fe5  1  0.357  0.157  0.452  1.0
  As  As6  1  0.427  0.646  0.297  1.0
  As  As7  1  0.927  0.854  0.703  1.0
  As  As8  1  0.573  0.354  0.703  1.0
  As  As9  1  0.073  0.146  0.297  1.0
  O  O10  1  0.489  0.880  0.393  1.0
  O  O11  1  0.989  0.620  0.607  1.0
  O  O12  1  0.511  0.120  0.607  1.0
  O  O13  1  0.011  0.380  0.393  1.0
  O  O14  1  0.483  0.374  0.359  1.0
  O  O15  1  0.983  0.126  0.641  1.0
  O  O16  1  0.517  0.626  0.641  1.0
  O  O17  1  0.017  0.874  0.359  1.0
  O  O18  1  0.505  0.694  0.143  1.0
  O  O19  1  0.005  0.806  0.857  1.0
  O  O20  1  0.495  0.306  0.857  1.0
  O  O21  1  0.995  0.194  0.143  1.0
  O  O22  1  0.254  0.666  0.280  1.0
  O  O23  1  0.754  0.834  0.720  1.0
  O  O24  1  0.746  0.334  0.720  1.0
  O  O25  1  0.246  0.166  0.280  1.0
  O  O26  1  0.240  0.922  0.528  1.0
  O  O27  1  0.740  0.578  0.472  1.0
  O  O28  1  0.760  0.078  0.472  1.0
  O  O29  1  0.260  0.422  0.528  1.0
  O  O30  1  0.827  0.664  0.100  1.0
  O  O31  1  0.327  0.836  0.900  1.0
  O  O32  1  0.173  0.336  0.900  1.0
  O  O33  1  0.673  0.164  0.100  1.0
  O  O34  1  0.264  0.885  0.002  1.0
  O  O35  1  0.764  0.615  0.998  1.0
  O  O36  1  0.736  0.115  0.998  1.0
  O  O37  1  0.236  0.385  0.002  1.0
[/CIF]
.
The crystal structure described by Fe2Zn(AsO5)2(O2)2 crystallizes in the monoclinic P2_1/c space group. The structure consists of four hydrogen peroxide molecules inside a Fe2Zn(AsO5)2 framework. In the Fe2Zn(AsO5)2 framework, Fe(1) is bonded to one O(2), one O(4), two equivalent O(1), and two equivalent O(5) atoms to form FeO6 octahedra that share corners with two equivalent Fe(1)O6 octahedra, corners with four equivalent As(1)O4 tetrahedra, and  an edgeedge with one Fe(1)O6 octahedra. The corner-sharing octahedral tilt angles are 48°. Zn(1) is bonded in a linear geometry to two equivalent O(3) atoms. As(1) is bonded to one O(1), one O(2), one O(3), and one O(4) atom to form AsO4 tetrahedra that share corners with four equivalent Fe(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 55-63°. There are five inequivalent O sites. In the first O site, O(1) is bonded in a trigonal planar geometry to two equivalent Fe(1) and one As(1) atom. In the second O site, O(2) is bonded in a bent 120 degrees geometry to one Fe(1) and one As(1) atom. In the third O site, O(3) is bonded in a bent 120 degrees geometry to one Zn(1) and one As(1) atom. In the fourth O site, O(4) is bonded in a bent 120 degrees geometry to one Fe(1) and one As(1) atom. In the fifth O site, O(5) is bonded in a bent 120 degrees geometry to two equivalent Fe(1) atoms. is represented by the CIF card [CIF]
data_ZnFe2(AsO7)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.808
_cell_length_b   5.594
_cell_length_c   10.006
_cell_angle_alpha   89.084
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   548.914
_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  0.000  0.000  0.000  1.0
  Zn  Zn1  1  0.500  0.500  0.000  1.0
  Fe  Fe2  1  0.143  0.657  0.452  1.0
  Fe  Fe3  1  0.643  0.843  0.548  1.0
  Fe  Fe4  1  0.857  0.343  0.548  1.0
  Fe  Fe5  1  0.357  0.157  0.452  1.0
  As  As6  1  0.427  0.646  0.297  1.0
  As  As7  1  0.927  0.854  0.703  1.0
  As  As8  1  0.573  0.354  0.703  1.0
  As  As9  1  0.073  0.146  0.297  1.0
  O  O10  1  0.489  0.880  0.393  1.0
  O  O11  1  0.989  0.620  0.607  1.0
  O  O12  1  0.511  0.120  0.607  1.0
  O  O13  1  0.011  0.380  0.393  1.0
  O  O14  1  0.483  0.374  0.359  1.0
  O  O15  1  0.983  0.126  0.641  1.0
  O  O16  1  0.517  0.626  0.641  1.0
  O  O17  1  0.017  0.874  0.359  1.0
  O  O18  1  0.505  0.694  0.143  1.0
  O  O19  1  0.005  0.806  0.857  1.0
  O  O20  1  0.495  0.306  0.857  1.0
  O  O21  1  0.995  0.194  0.143  1.0
  O  O22  1  0.254  0.666  0.280  1.0
  O  O23  1  0.754  0.834  0.720  1.0
  O  O24  1  0.746  0.334  0.720  1.0
  O  O25  1  0.246  0.166  0.280  1.0
  O  O26  1  0.240  0.922  0.528  1.0
  O  O27  1  0.740  0.578  0.472  1.0
  O  O28  1  0.760  0.078  0.472  1.0
  O  O29  1  0.260  0.422  0.528  1.0
  O  O30  1  0.827  0.664  0.100  1.0
  O  O31  1  0.327  0.836  0.900  1.0
  O  O32  1  0.173  0.336  0.900  1.0
  O  O33  1  0.673  0.164  0.100  1.0
  O  O34  1  0.264  0.885  0.002  1.0
  O  O35  1  0.764  0.615  0.998  1.0
  O  O36  1  0.736  0.115  0.998  1.0
  O  O37  1  0.236  0.385  0.002  1.0
[/CIF]
.