The structure described by MgTi2Zn2(PO5)2 crystallizes in the triclinic P1 space group. Mg(1) is bonded in a 6-coordinate geometry to one Zn(2), one O(4), one O(5), one O(6), one O(8), and one O(9) atom. There are two inequivalent Ti sites. In the first Ti site, Ti(1) is bonded to one O(10), one O(2), one O(4), one O(5), one O(7), and one O(9) atom to form distorted TiO6 octahedra that share corners with two equivalent Ti(2)O6 octahedra, corners with two equivalent P(1)O4 tetrahedra, corners with two equivalent P(2)O4 tetrahedra,  a cornercorner with one Zn(1)O4 trigonal pyramid, and  an edgeedge with one Zn(1)O4 trigonal pyramid. The corner-sharing octahedral tilt angles range from 19-47°. In the second Ti site, Ti(2) is bonded to one O(1), one O(10), one O(3), one O(6), one O(8), and one O(9) atom to form distorted TiO6 octahedra that share corners with two equivalent Ti(1)O6 octahedra, corners with two equivalent P(1)O4 tetrahedra, corners with two equivalent P(2)O4 tetrahedra, and corners with two equivalent Zn(1)O4 trigonal pyramids. The corner-sharing octahedral tilt angles range from 19-47°. There are two inequivalent Zn sites. In the first Zn site, Zn(1) is bonded to one O(1), one O(10), one O(4), and one O(7) atom to form ZnO4 trigonal pyramids that share  a cornercorner with one Ti(1)O6 octahedra, corners with two equivalent Ti(2)O6 octahedra,  a cornercorner with one P(2)O4 tetrahedra, corners with two equivalent P(1)O4 tetrahedra, and  an edgeedge with one Ti(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 54-77°. In the second Zn site, Zn(2) is bonded in a distorted water-like geometry to one Mg(1), one O(3), and one O(9) atom. There are two inequivalent P sites. In the first P site, P(1) is bonded to one O(1), one O(2), one O(7), and one O(8) atom to form PO4 tetrahedra that share corners with two equivalent Ti(1)O6 octahedra, corners with two equivalent Ti(2)O6 octahedra, and corners with two equivalent Zn(1)O4 trigonal pyramids. The corner-sharing octahedral tilt angles range from 37-59°. In the second P site, P(2) is bonded to one O(3), one O(4), one O(5), and one O(6) atom to form PO4 tetrahedra that share corners with two equivalent Ti(1)O6 octahedra, corners with two equivalent Ti(2)O6 octahedra, and  a cornercorner with one Zn(1)O4 trigonal pyramid. The corner-sharing octahedral tilt angles range from 16-46°. There are ten inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal planar geometry to one Ti(2), one Zn(1), and one P(1) atom. In the second O site, O(2) is bonded in a bent 120 degrees geometry to one Ti(1) and one P(1) atom. In the third O site, O(3) is bonded in a distorted trigonal planar geometry to one Ti(2), one Zn(2), and one P(2) atom. In the fourth O site, O(4) is bonded in a rectangular see-saw-like geometry to one Mg(1), one Ti(1), one Zn(1), and one P(2) atom. In the fifth O site, O(5) is bonded in a 3-coordinate geometry to one Mg(1), one Ti(1), and one P(2) atom. In the sixth O site, O(6) is bonded in a distorted T-shaped geometry to one Mg(1), one Ti(2), and one P(2) atom. In the seventh O site, O(7) is bonded in a trigonal planar geometry to one Ti(1), one Zn(1), and one P(1) atom. In the eighth O site, O(8) is bonded in a 3-coordinate geometry to one Mg(1), one Ti(2), and one P(1) atom. In the ninth O site, O(9) is bonded in a distorted see-saw-like geometry to one Mg(1), one Ti(1), one Ti(2), and one Zn(2) atom. In the tenth O site, O(10) is bonded in a trigonal planar geometry to one Ti(1), one Ti(2), and one Zn(1) atom. is represented by the CIF file [CIF]
data_MgTi2Zn2(PO5)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.699
_cell_length_b   7.512
_cell_length_c   8.502
_cell_angle_alpha   88.470
_cell_angle_beta   39.620
_cell_angle_gamma   104.907
_symmetry_Int_Tables_number   1
_cell_volume   208.829
_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
  Mg  Mg0  1  0.065  0.815  0.081  1.0
  Ti  Ti1  1  0.423  0.463  0.553  1.0
  Ti  Ti2  1  0.497  0.994  0.511  1.0
  Zn  Zn3  1  0.390  0.280  0.253  1.0
  Zn  Zn4  1  0.736  0.825  0.637  1.0
  P  P5  1  0.520  0.275  0.829  1.0
  P  P6  1  0.460  0.728  0.178  1.0
  O  O7  1  0.768  0.217  0.580  1.0
  O  O8  1  0.401  0.428  0.808  1.0
  O  O9  1  0.300  0.847  0.367  1.0
  O  O10  1  0.527  0.566  0.245  1.0
  O  O11  1  0.162  0.633  0.198  1.0
  O  O12  1  0.901  0.873  0.901  1.0
  O  O13  1  0.769  0.353  0.858  1.0
  O  O14  1  0.130  0.091  0.089  1.0
  O  O15  1  0.557  0.736  0.491  1.0
  O  O16  1  0.465  0.230  0.437  1.0
[/CIF]
.
The structure described by MgTi2Zn2(PO5)2 crystallizes in the triclinic P1 space group. Mg(1) is bonded in a 6-coordinate geometry to one Zn(2), one O(4), one O(5), one O(6), one O(8), and one O(9) atom. There are two inequivalent Ti sites. In the first Ti site, Ti(1) is bonded to one O(10), one O(2), one O(4), one O(5), one O(7), and one O(9) atom to form distorted TiO6 octahedra that share corners with two equivalent Ti(2)O6 octahedra, corners with two equivalent P(1)O4 tetrahedra, corners with two equivalent P(2)O4 tetrahedra,  a cornercorner with one Zn(1)O4 trigonal pyramid, and  an edgeedge with one Zn(1)O4 trigonal pyramid. The corner-sharing octahedral tilt angles range from 19-47°. In the second Ti site, Ti(2) is bonded to one O(1), one O(10), one O(3), one O(6), one O(8), and one O(9) atom to form distorted TiO6 octahedra that share corners with two equivalent Ti(1)O6 octahedra, corners with two equivalent P(1)O4 tetrahedra, corners with two equivalent P(2)O4 tetrahedra, and corners with two equivalent Zn(1)O4 trigonal pyramids. The corner-sharing octahedral tilt angles range from 19-47°. There are two inequivalent Zn sites. In the first Zn site, Zn(1) is bonded to one O(1), one O(10), one O(4), and one O(7) atom to form ZnO4 trigonal pyramids that share  a cornercorner with one Ti(1)O6 octahedra, corners with two equivalent Ti(2)O6 octahedra,  a cornercorner with one P(2)O4 tetrahedra, corners with two equivalent P(1)O4 tetrahedra, and  an edgeedge with one Ti(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 54-77°. In the second Zn site, Zn(2) is bonded in a distorted water-like geometry to one Mg(1), one O(3), and one O(9) atom. There are two inequivalent P sites. In the first P site, P(1) is bonded to one O(1), one O(2), one O(7), and one O(8) atom to form PO4 tetrahedra that share corners with two equivalent Ti(1)O6 octahedra, corners with two equivalent Ti(2)O6 octahedra, and corners with two equivalent Zn(1)O4 trigonal pyramids. The corner-sharing octahedral tilt angles range from 37-59°. In the second P site, P(2) is bonded to one O(3), one O(4), one O(5), and one O(6) atom to form PO4 tetrahedra that share corners with two equivalent Ti(1)O6 octahedra, corners with two equivalent Ti(2)O6 octahedra, and  a cornercorner with one Zn(1)O4 trigonal pyramid. The corner-sharing octahedral tilt angles range from 16-46°. There are ten inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal planar geometry to one Ti(2), one Zn(1), and one P(1) atom. In the second O site, O(2) is bonded in a bent 120 degrees geometry to one Ti(1) and one P(1) atom. In the third O site, O(3) is bonded in a distorted trigonal planar geometry to one Ti(2), one Zn(2), and one P(2) atom. In the fourth O site, O(4) is bonded in a rectangular see-saw-like geometry to one Mg(1), one Ti(1), one Zn(1), and one P(2) atom. In the fifth O site, O(5) is bonded in a 3-coordinate geometry to one Mg(1), one Ti(1), and one P(2) atom. In the sixth O site, O(6) is bonded in a distorted T-shaped geometry to one Mg(1), one Ti(2), and one P(2) atom. In the seventh O site, O(7) is bonded in a trigonal planar geometry to one Ti(1), one Zn(1), and one P(1) atom. In the eighth O site, O(8) is bonded in a 3-coordinate geometry to one Mg(1), one Ti(2), and one P(1) atom. In the ninth O site, O(9) is bonded in a distorted see-saw-like geometry to one Mg(1), one Ti(1), one Ti(2), and one Zn(2) atom. In the tenth O site, O(10) is bonded in a trigonal planar geometry to one Ti(1), one Ti(2), and one Zn(1) atom. is represented by the CIF file [CIF]
data_MgTi2Zn2(PO5)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.699
_cell_length_b   7.512
_cell_length_c   8.502
_cell_angle_alpha   88.470
_cell_angle_beta   39.620
_cell_angle_gamma   104.907
_symmetry_Int_Tables_number   1
_cell_volume   208.829
_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
  Mg  Mg0  1  0.065  0.815  0.081  1.0
  Ti  Ti1  1  0.423  0.463  0.553  1.0
  Ti  Ti2  1  0.497  0.994  0.511  1.0
  Zn  Zn3  1  0.390  0.280  0.253  1.0
  Zn  Zn4  1  0.736  0.825  0.637  1.0
  P  P5  1  0.520  0.275  0.829  1.0
  P  P6  1  0.460  0.728  0.178  1.0
  O  O7  1  0.768  0.217  0.580  1.0
  O  O8  1  0.401  0.428  0.808  1.0
  O  O9  1  0.300  0.847  0.367  1.0
  O  O10  1  0.527  0.566  0.245  1.0
  O  O11  1  0.162  0.633  0.198  1.0
  O  O12  1  0.901  0.873  0.901  1.0
  O  O13  1  0.769  0.353  0.858  1.0
  O  O14  1  0.130  0.091  0.089  1.0
  O  O15  1  0.557  0.736  0.491  1.0
  O  O16  1  0.465  0.230  0.437  1.0
[/CIF]
.