The material structure described by MgSn3O7 crystallizes in the orthorhombic Pnma space group. Mg(1) is bonded in a 7-coordinate geometry to one O(3), two equivalent O(1), two equivalent O(2), and two equivalent O(4) atoms. There are two inequivalent Sn sites. In the first Sn site, Sn(1) is bonded in a 6-coordinate geometry to two equivalent O(1), two equivalent O(2), and two equivalent O(4) atoms. In the second Sn site, Sn(2) is bonded in a 5-coordinate geometry to one O(3), two equivalent O(1), and two equivalent O(2) atoms. There are four inequivalent O sites. In the first O site, O(3) is bonded in a distorted bent 120 degrees geometry to one Mg(1) and one Sn(2) atom. In the second O site, O(4) is bonded in a distorted trigonal non-coplanar geometry to one Mg(1) and two equivalent Sn(1) atoms. In the third O site, O(1) is bonded to one Mg(1), one Sn(2), and two equivalent Sn(1) atoms to form a mixture of edge and corner-sharing OMgSn3 tetrahedra. In the fourth O site, O(2) is bonded to one Mg(1), one Sn(2), and two equivalent Sn(1) atoms to form a mixture of distorted edge and corner-sharing OMgSn3 tetrahedra. is represented by the CIF file [CIF]
data_MgSn3O7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.235
_cell_length_b   10.235
_cell_length_c   10.319
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   552.902
_cell_formula_units_Z   4
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  0.331  0.137  0.250  1.0
  Mg  Mg1  1  0.831  0.363  0.750  1.0
  Mg  Mg2  1  0.669  0.863  0.750  1.0
  Mg  Mg3  1  0.169  0.637  0.250  1.0
  Sn  Sn4  1  0.647  0.639  0.016  1.0
  Sn  Sn5  1  0.147  0.861  0.984  1.0
  Sn  Sn6  1  0.353  0.361  0.516  1.0
  Sn  Sn7  1  0.853  0.139  0.484  1.0
  Sn  Sn8  1  0.686  0.855  0.250  1.0
  Sn  Sn9  1  0.186  0.645  0.750  1.0
  Sn  Sn10  1  0.314  0.145  0.750  1.0
  Sn  Sn11  1  0.814  0.355  0.250  1.0
  Sn  Sn12  1  0.147  0.861  0.516  1.0
  Sn  Sn13  1  0.647  0.639  0.484  1.0
  Sn  Sn14  1  0.853  0.139  0.016  1.0
  Sn  Sn15  1  0.353  0.361  0.984  1.0
  O  O16  1  0.075  0.244  0.878  1.0
  O  O17  1  0.575  0.256  0.122  1.0
  O  O18  1  0.925  0.756  0.378  1.0
  O  O19  1  0.425  0.744  0.622  1.0
  O  O20  1  0.925  0.756  0.122  1.0
  O  O21  1  0.425  0.744  0.878  1.0
  O  O22  1  0.075  0.244  0.622  1.0
  O  O23  1  0.575  0.256  0.378  1.0
  O  O24  1  0.573  0.219  0.878  1.0
  O  O25  1  0.073  0.281  0.122  1.0
  O  O26  1  0.427  0.781  0.378  1.0
  O  O27  1  0.927  0.719  0.622  1.0
  O  O28  1  0.427  0.781  0.122  1.0
  O  O29  1  0.927  0.719  0.878  1.0
  O  O30  1  0.573  0.219  0.622  1.0
  O  O31  1  0.073  0.281  0.378  1.0
  O  O32  1  0.800  0.545  0.250  1.0
  O  O33  1  0.300  0.955  0.750  1.0
  O  O34  1  0.200  0.455  0.750  1.0
  O  O35  1  0.700  0.045  0.250  1.0
  O  O36  1  0.817  0.968  0.584  1.0
  O  O37  1  0.317  0.532  0.416  1.0
  O  O38  1  0.183  0.032  0.084  1.0
  O  O39  1  0.683  0.468  0.916  1.0
  O  O40  1  0.183  0.032  0.416  1.0
  O  O41  1  0.683  0.468  0.584  1.0
  O  O42  1  0.817  0.968  0.916  1.0
  O  O43  1  0.317  0.532  0.084  1.0
[/CIF]
.
The material structure described by MgSn3O7 crystallizes in the orthorhombic Pnma space group. Mg(1) is bonded in a 7-coordinate geometry to one O(3), two equivalent O(1), two equivalent O(2), and two equivalent O(4) atoms. There are two inequivalent Sn sites. In the first Sn site, Sn(1) is bonded in a 6-coordinate geometry to two equivalent O(1), two equivalent O(2), and two equivalent O(4) atoms. In the second Sn site, Sn(2) is bonded in a 5-coordinate geometry to one O(3), two equivalent O(1), and two equivalent O(2) atoms. There are four inequivalent O sites. In the first O site, O(3) is bonded in a distorted bent 120 degrees geometry to one Mg(1) and one Sn(2) atom. In the second O site, O(4) is bonded in a distorted trigonal non-coplanar geometry to one Mg(1) and two equivalent Sn(1) atoms. In the third O site, O(1) is bonded to one Mg(1), one Sn(2), and two equivalent Sn(1) atoms to form a mixture of edge and corner-sharing OMgSn3 tetrahedra. In the fourth O site, O(2) is bonded to one Mg(1), one Sn(2), and two equivalent Sn(1) atoms to form a mixture of distorted edge and corner-sharing OMgSn3 tetrahedra. is represented by the CIF file [CIF]
data_MgSn3O7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.235
_cell_length_b   10.235
_cell_length_c   10.319
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   552.902
_cell_formula_units_Z   4
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  0.331  0.137  0.250  1.0
  Mg  Mg1  1  0.831  0.363  0.750  1.0
  Mg  Mg2  1  0.669  0.863  0.750  1.0
  Mg  Mg3  1  0.169  0.637  0.250  1.0
  Sn  Sn4  1  0.647  0.639  0.016  1.0
  Sn  Sn5  1  0.147  0.861  0.984  1.0
  Sn  Sn6  1  0.353  0.361  0.516  1.0
  Sn  Sn7  1  0.853  0.139  0.484  1.0
  Sn  Sn8  1  0.686  0.855  0.250  1.0
  Sn  Sn9  1  0.186  0.645  0.750  1.0
  Sn  Sn10  1  0.314  0.145  0.750  1.0
  Sn  Sn11  1  0.814  0.355  0.250  1.0
  Sn  Sn12  1  0.147  0.861  0.516  1.0
  Sn  Sn13  1  0.647  0.639  0.484  1.0
  Sn  Sn14  1  0.853  0.139  0.016  1.0
  Sn  Sn15  1  0.353  0.361  0.984  1.0
  O  O16  1  0.075  0.244  0.878  1.0
  O  O17  1  0.575  0.256  0.122  1.0
  O  O18  1  0.925  0.756  0.378  1.0
  O  O19  1  0.425  0.744  0.622  1.0
  O  O20  1  0.925  0.756  0.122  1.0
  O  O21  1  0.425  0.744  0.878  1.0
  O  O22  1  0.075  0.244  0.622  1.0
  O  O23  1  0.575  0.256  0.378  1.0
  O  O24  1  0.573  0.219  0.878  1.0
  O  O25  1  0.073  0.281  0.122  1.0
  O  O26  1  0.427  0.781  0.378  1.0
  O  O27  1  0.927  0.719  0.622  1.0
  O  O28  1  0.427  0.781  0.122  1.0
  O  O29  1  0.927  0.719  0.878  1.0
  O  O30  1  0.573  0.219  0.622  1.0
  O  O31  1  0.073  0.281  0.378  1.0
  O  O32  1  0.800  0.545  0.250  1.0
  O  O33  1  0.300  0.955  0.750  1.0
  O  O34  1  0.200  0.455  0.750  1.0
  O  O35  1  0.700  0.045  0.250  1.0
  O  O36  1  0.817  0.968  0.584  1.0
  O  O37  1  0.317  0.532  0.416  1.0
  O  O38  1  0.183  0.032  0.084  1.0
  O  O39  1  0.683  0.468  0.916  1.0
  O  O40  1  0.183  0.032  0.416  1.0
  O  O41  1  0.683  0.468  0.584  1.0
  O  O42  1  0.817  0.968  0.916  1.0
  O  O43  1  0.317  0.532  0.084  1.0
[/CIF]
.