The crystal structure described by MgTa2O6 is Rutile-derived structured and crystallizes in the tetragonal P4_2/mnm space group. Mg(1) is bonded to two equivalent O(2) and four equivalent O(1) atoms to form MgO6 octahedra that share corners with eight equivalent Ta(1)O6 octahedra and edges with two equivalent Ta(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 51-52°. Ta(1) is bonded to two equivalent O(2) and four equivalent O(1) atoms to form TaO6 octahedra that share corners with four equivalent Mg(1)O6 octahedra, corners with four equivalent Ta(1)O6 octahedra,  an edgeedge with one Mg(1)O6 octahedra, and  an edgeedge with one Ta(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 45-52°. There are two inequivalent O sites. In the first O site, O(2) is bonded in a trigonal planar geometry to one Mg(1) and two equivalent Ta(1) atoms. In the second O site, O(1) is bonded in a distorted trigonal planar geometry to one Mg(1) and two equivalent Ta(1) atoms. is represented by the CIF card [CIF]
data_MgTa2O6
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.727
_cell_length_b   4.727
_cell_length_c   9.208
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   205.704
_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
  Mg  Mg0  1  0.000  0.000  0.000  1.0
  Mg  Mg1  1  0.500  0.500  0.500  1.0
  Ta  Ta2  1  0.500  0.500  0.832  1.0
  Ta  Ta3  1  0.000  0.000  0.332  1.0
  Ta  Ta4  1  0.500  0.500  0.168  1.0
  Ta  Ta5  1  0.000  0.000  0.668  1.0
  O  O6  1  0.702  0.702  0.676  1.0
  O  O7  1  0.298  0.298  0.676  1.0
  O  O8  1  0.702  0.702  0.324  1.0
  O  O9  1  0.202  0.798  0.176  1.0
  O  O10  1  0.798  0.202  0.176  1.0
  O  O11  1  0.798  0.202  0.824  1.0
  O  O12  1  0.310  0.310  0.000  1.0
  O  O13  1  0.190  0.810  0.500  1.0
  O  O14  1  0.810  0.190  0.500  1.0
  O  O15  1  0.690  0.690  0.000  1.0
  O  O16  1  0.298  0.298  0.324  1.0
  O  O17  1  0.202  0.798  0.824  1.0
[/CIF]
.
The crystal structure described by MgTa2O6 is Rutile-derived structured and crystallizes in the tetragonal P4_2/mnm space group. Mg(1) is bonded to two equivalent O(2) and four equivalent O(1) atoms to form MgO6 octahedra that share corners with eight equivalent Ta(1)O6 octahedra and edges with two equivalent Ta(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 51-52°. Ta(1) is bonded to two equivalent O(2) and four equivalent O(1) atoms to form TaO6 octahedra that share corners with four equivalent Mg(1)O6 octahedra, corners with four equivalent Ta(1)O6 octahedra,  an edgeedge with one Mg(1)O6 octahedra, and  an edgeedge with one Ta(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 45-52°. There are two inequivalent O sites. In the first O site, O(2) is bonded in a trigonal planar geometry to one Mg(1) and two equivalent Ta(1) atoms. In the second O site, O(1) is bonded in a distorted trigonal planar geometry to one Mg(1) and two equivalent Ta(1) atoms. is represented by the CIF card [CIF]
data_MgTa2O6
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.727
_cell_length_b   4.727
_cell_length_c   9.208
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   205.704
_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
  Mg  Mg0  1  0.000  0.000  0.000  1.0
  Mg  Mg1  1  0.500  0.500  0.500  1.0
  Ta  Ta2  1  0.500  0.500  0.832  1.0
  Ta  Ta3  1  0.000  0.000  0.332  1.0
  Ta  Ta4  1  0.500  0.500  0.168  1.0
  Ta  Ta5  1  0.000  0.000  0.668  1.0
  O  O6  1  0.702  0.702  0.676  1.0
  O  O7  1  0.298  0.298  0.676  1.0
  O  O8  1  0.702  0.702  0.324  1.0
  O  O9  1  0.202  0.798  0.176  1.0
  O  O10  1  0.798  0.202  0.176  1.0
  O  O11  1  0.798  0.202  0.824  1.0
  O  O12  1  0.310  0.310  0.000  1.0
  O  O13  1  0.190  0.810  0.500  1.0
  O  O14  1  0.810  0.190  0.500  1.0
  O  O15  1  0.690  0.690  0.000  1.0
  O  O16  1  0.298  0.298  0.324  1.0
  O  O17  1  0.202  0.798  0.824  1.0
[/CIF]
.