The compound described by MgFe3O7 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 Fe sites. In the first Fe site, Fe(1) is bonded to one O(4), two equivalent O(1), and two equivalent O(2) atoms to form a mixture of distorted corner and edge-sharing FeO5 trigonal bipyramids. In the second Fe site, Fe(2) is bonded to one O(3), two equivalent O(1), and two equivalent O(2) atoms to form a mixture of distorted corner and edge-sharing FeO5 trigonal bipyramids. There are four inequivalent O sites. In the first O site, O(3) is bonded in a bent 150 degrees geometry to one Mg(1) and one Fe(2) atom. In the second O site, O(4) is bonded in a bent 150 degrees geometry to one Mg(1) and one Fe(1) atom. In the third O site, O(1) is bonded to one Mg(1), one Fe(2), and two equivalent Fe(1) atoms to form a mixture of distorted corner and edge-sharing OMgFe3 trigonal pyramids. In the fourth O site, O(2) is bonded in a 4-coordinate geometry to one Mg(1), one Fe(2), and two equivalent Fe(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_MgFe3O7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.305
_cell_length_b   10.348
_cell_length_c   10.357
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   568.621
_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  0.342  0.092  0.250  1.0
  Mg  Mg1  1  0.842  0.408  0.750  1.0
  Mg  Mg2  1  0.658  0.908  0.750  1.0
  Mg  Mg3  1  0.158  0.592  0.250  1.0
  Fe  Fe4  1  0.700  0.682  0.973  1.0
  Fe  Fe5  1  0.200  0.818  0.027  1.0
  Fe  Fe6  1  0.300  0.318  0.473  1.0
  Fe  Fe7  1  0.800  0.182  0.527  1.0
  Fe  Fe8  1  0.685  0.775  0.250  1.0
  Fe  Fe9  1  0.185  0.725  0.750  1.0
  Fe  Fe10  1  0.315  0.225  0.750  1.0
  Fe  Fe11  1  0.815  0.275  0.250  1.0
  Fe  Fe12  1  0.200  0.818  0.473  1.0
  Fe  Fe13  1  0.700  0.682  0.527  1.0
  Fe  Fe14  1  0.800  0.182  0.973  1.0
  Fe  Fe15  1  0.300  0.318  0.027  1.0
  O  O16  1  0.061  0.282  0.877  1.0
  O  O17  1  0.561  0.218  0.123  1.0
  O  O18  1  0.939  0.718  0.377  1.0
  O  O19  1  0.439  0.782  0.623  1.0
  O  O20  1  0.939  0.718  0.123  1.0
  O  O21  1  0.439  0.782  0.877  1.0
  O  O22  1  0.061  0.282  0.623  1.0
  O  O23  1  0.561  0.218  0.377  1.0
  O  O24  1  0.549  0.292  0.881  1.0
  O  O25  1  0.049  0.208  0.119  1.0
  O  O26  1  0.451  0.708  0.381  1.0
  O  O27  1  0.951  0.792  0.619  1.0
  O  O28  1  0.451  0.708  0.119  1.0
  O  O29  1  0.951  0.792  0.881  1.0
  O  O30  1  0.549  0.292  0.619  1.0
  O  O31  1  0.049  0.208  0.381  1.0
  O  O32  1  0.879  0.449  0.250  1.0
  O  O33  1  0.379  0.051  0.750  1.0
  O  O34  1  0.121  0.551  0.750  1.0
  O  O35  1  0.621  0.949  0.250  1.0
  O  O36  1  0.755  0.027  0.603  1.0
  O  O37  1  0.255  0.473  0.397  1.0
  O  O38  1  0.245  0.973  0.103  1.0
  O  O39  1  0.745  0.527  0.897  1.0
  O  O40  1  0.245  0.973  0.397  1.0
  O  O41  1  0.745  0.527  0.603  1.0
  O  O42  1  0.755  0.027  0.897  1.0
  O  O43  1  0.255  0.473  0.103  1.0
[/CIF]
.
The compound described by MgFe3O7 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 Fe sites. In the first Fe site, Fe(1) is bonded to one O(4), two equivalent O(1), and two equivalent O(2) atoms to form a mixture of distorted corner and edge-sharing FeO5 trigonal bipyramids. In the second Fe site, Fe(2) is bonded to one O(3), two equivalent O(1), and two equivalent O(2) atoms to form a mixture of distorted corner and edge-sharing FeO5 trigonal bipyramids. There are four inequivalent O sites. In the first O site, O(3) is bonded in a bent 150 degrees geometry to one Mg(1) and one Fe(2) atom. In the second O site, O(4) is bonded in a bent 150 degrees geometry to one Mg(1) and one Fe(1) atom. In the third O site, O(1) is bonded to one Mg(1), one Fe(2), and two equivalent Fe(1) atoms to form a mixture of distorted corner and edge-sharing OMgFe3 trigonal pyramids. In the fourth O site, O(2) is bonded in a 4-coordinate geometry to one Mg(1), one Fe(2), and two equivalent Fe(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_MgFe3O7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.305
_cell_length_b   10.348
_cell_length_c   10.357
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   568.621
_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  0.342  0.092  0.250  1.0
  Mg  Mg1  1  0.842  0.408  0.750  1.0
  Mg  Mg2  1  0.658  0.908  0.750  1.0
  Mg  Mg3  1  0.158  0.592  0.250  1.0
  Fe  Fe4  1  0.700  0.682  0.973  1.0
  Fe  Fe5  1  0.200  0.818  0.027  1.0
  Fe  Fe6  1  0.300  0.318  0.473  1.0
  Fe  Fe7  1  0.800  0.182  0.527  1.0
  Fe  Fe8  1  0.685  0.775  0.250  1.0
  Fe  Fe9  1  0.185  0.725  0.750  1.0
  Fe  Fe10  1  0.315  0.225  0.750  1.0
  Fe  Fe11  1  0.815  0.275  0.250  1.0
  Fe  Fe12  1  0.200  0.818  0.473  1.0
  Fe  Fe13  1  0.700  0.682  0.527  1.0
  Fe  Fe14  1  0.800  0.182  0.973  1.0
  Fe  Fe15  1  0.300  0.318  0.027  1.0
  O  O16  1  0.061  0.282  0.877  1.0
  O  O17  1  0.561  0.218  0.123  1.0
  O  O18  1  0.939  0.718  0.377  1.0
  O  O19  1  0.439  0.782  0.623  1.0
  O  O20  1  0.939  0.718  0.123  1.0
  O  O21  1  0.439  0.782  0.877  1.0
  O  O22  1  0.061  0.282  0.623  1.0
  O  O23  1  0.561  0.218  0.377  1.0
  O  O24  1  0.549  0.292  0.881  1.0
  O  O25  1  0.049  0.208  0.119  1.0
  O  O26  1  0.451  0.708  0.381  1.0
  O  O27  1  0.951  0.792  0.619  1.0
  O  O28  1  0.451  0.708  0.119  1.0
  O  O29  1  0.951  0.792  0.881  1.0
  O  O30  1  0.549  0.292  0.619  1.0
  O  O31  1  0.049  0.208  0.381  1.0
  O  O32  1  0.879  0.449  0.250  1.0
  O  O33  1  0.379  0.051  0.750  1.0
  O  O34  1  0.121  0.551  0.750  1.0
  O  O35  1  0.621  0.949  0.250  1.0
  O  O36  1  0.755  0.027  0.603  1.0
  O  O37  1  0.255  0.473  0.397  1.0
  O  O38  1  0.245  0.973  0.103  1.0
  O  O39  1  0.745  0.527  0.897  1.0
  O  O40  1  0.245  0.973  0.397  1.0
  O  O41  1  0.745  0.527  0.603  1.0
  O  O42  1  0.755  0.027  0.897  1.0
  O  O43  1  0.255  0.473  0.103  1.0
[/CIF]
.