The compound described by MgMn2(SeO3)4 crystallizes in the triclinic P1 space group. Mg(1) is bonded in a distorted square co-planar geometry to one O(11), one O(6), one O(7), and one O(9) atom. There are two inequivalent Mn sites. In the first Mn site, Mn(1) is bonded in a distorted octahedral geometry to one O(1), one O(11), one O(3), one O(6), one O(7), and one O(9) atom. In the second Mn site, Mn(2) is bonded in an octahedral geometry to one O(10), one O(12), one O(2), one O(4), one O(5), and one O(8) atom. There are three inequivalent Se sites. In the first Se site, Se(1,4) is bonded in a distorted trigonal non-coplanar geometry to one O(12), one O(3), and one O(8) atom. In the second Se site, Se(2) is bonded in a trigonal non-coplanar geometry to one O(11), one O(4), and one O(7) atom. In the third Se site, Se(3) is bonded in a trigonal non-coplanar geometry to one O(2), one O(6), and one O(9) atom. There are twelve inequivalent O sites. In the first O site, O(1) is bonded in a bent 120 degrees geometry to one Mn(1) and one Se(1,4) atom. In the second O site, O(2) is bonded in a distorted bent 120 degrees geometry to one Mn(2) and one Se(3) atom. In the third O site, O(3) is bonded in a bent 120 degrees geometry to one Mn(1) and one Se(1,4) atom. In the fourth O site, O(4) is bonded in a distorted bent 120 degrees geometry to one Mn(2) and one Se(2) atom. In the fifth O site, O(5) is bonded in a bent 120 degrees geometry to one Mn(2) and one Se(1,4) atom. In the sixth O site, O(6) is bonded in a 3-coordinate geometry to one Mg(1), one Mn(1), and one Se(3) atom. In the seventh O site, O(7) is bonded in a trigonal non-coplanar geometry to one Mg(1), one Mn(1), and one Se(2) atom. In the eighth O site, O(8) is bonded in a bent 120 degrees geometry to one Mn(2) and one Se(1,4) atom. In the ninth O site, O(9) is bonded in a trigonal non-coplanar geometry to one Mg(1), one Mn(1), and one Se(3) atom. In the tenth O site, O(10) is bonded in a bent 120 degrees geometry to one Mn(2) and one Se(1,4) atom. In the eleventh O site, O(11) is bonded in a 3-coordinate geometry to one Mg(1), one Mn(1), and one Se(2) atom. In the twelfth O site, O(12) is bonded in a bent 120 degrees geometry to one Mn(2) and one Se(1,4) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_MgMn2(SeO3)4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.211
_cell_length_b   6.593
_cell_length_c   8.368
_cell_angle_alpha   97.768
_cell_angle_beta   94.300
_cell_angle_gamma   89.521
_symmetry_Int_Tables_number   1
_cell_volume   284.076
_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  0.499  1.000  0.500  1.0
  Mn  Mn1  1  0.500  0.500  0.500  1.0
  Mn  Mn2  1  0.000  0.000  0.000  1.0
  Se  Se3  1  0.528  0.190  0.172  1.0
  Se  Se4  1  0.016  0.718  0.323  1.0
  Se  Se5  1  0.984  0.282  0.677  1.0
  Se  Se6  1  0.472  0.811  0.828  1.0
  O  O7  1  0.554  0.569  0.733  1.0
  O  O8  1  0.900  0.060  0.741  1.0
  O  O9  1  0.446  0.431  0.267  1.0
  O  O10  1  0.101  0.940  0.259  1.0
  O  O11  1  0.197  0.755  0.916  1.0
  O  O12  1  0.248  0.224  0.567  1.0
  O  O13  1  0.262  0.733  0.492  1.0
  O  O14  1  0.305  0.173  0.005  1.0
  O  O15  1  0.737  0.267  0.508  1.0
  O  O16  1  0.696  0.828  0.995  1.0
  O  O17  1  0.751  0.776  0.433  1.0
  O  O18  1  0.803  0.245  0.085  1.0
[/CIF]
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The compound described by MgMn2(SeO3)4 crystallizes in the triclinic P1 space group. Mg(1) is bonded in a distorted square co-planar geometry to one O(11), one O(6), one O(7), and one O(9) atom. There are two inequivalent Mn sites. In the first Mn site, Mn(1) is bonded in a distorted octahedral geometry to one O(1), one O(11), one O(3), one O(6), one O(7), and one O(9) atom. In the second Mn site, Mn(2) is bonded in an octahedral geometry to one O(10), one O(12), one O(2), one O(4), one O(5), and one O(8) atom. There are three inequivalent Se sites. In the first Se site, Se(1,4) is bonded in a distorted trigonal non-coplanar geometry to one O(12), one O(3), and one O(8) atom. In the second Se site, Se(2) is bonded in a trigonal non-coplanar geometry to one O(11), one O(4), and one O(7) atom. In the third Se site, Se(3) is bonded in a trigonal non-coplanar geometry to one O(2), one O(6), and one O(9) atom. There are twelve inequivalent O sites. In the first O site, O(1) is bonded in a bent 120 degrees geometry to one Mn(1) and one Se(1,4) atom. In the second O site, O(2) is bonded in a distorted bent 120 degrees geometry to one Mn(2) and one Se(3) atom. In the third O site, O(3) is bonded in a bent 120 degrees geometry to one Mn(1) and one Se(1,4) atom. In the fourth O site, O(4) is bonded in a distorted bent 120 degrees geometry to one Mn(2) and one Se(2) atom. In the fifth O site, O(5) is bonded in a bent 120 degrees geometry to one Mn(2) and one Se(1,4) atom. In the sixth O site, O(6) is bonded in a 3-coordinate geometry to one Mg(1), one Mn(1), and one Se(3) atom. In the seventh O site, O(7) is bonded in a trigonal non-coplanar geometry to one Mg(1), one Mn(1), and one Se(2) atom. In the eighth O site, O(8) is bonded in a bent 120 degrees geometry to one Mn(2) and one Se(1,4) atom. In the ninth O site, O(9) is bonded in a trigonal non-coplanar geometry to one Mg(1), one Mn(1), and one Se(3) atom. In the tenth O site, O(10) is bonded in a bent 120 degrees geometry to one Mn(2) and one Se(1,4) atom. In the eleventh O site, O(11) is bonded in a 3-coordinate geometry to one Mg(1), one Mn(1), and one Se(2) atom. In the twelfth O site, O(12) is bonded in a bent 120 degrees geometry to one Mn(2) and one Se(1,4) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_MgMn2(SeO3)4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.211
_cell_length_b   6.593
_cell_length_c   8.368
_cell_angle_alpha   97.768
_cell_angle_beta   94.300
_cell_angle_gamma   89.521
_symmetry_Int_Tables_number   1
_cell_volume   284.076
_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  0.499  1.000  0.500  1.0
  Mn  Mn1  1  0.500  0.500  0.500  1.0
  Mn  Mn2  1  0.000  0.000  0.000  1.0
  Se  Se3  1  0.528  0.190  0.172  1.0
  Se  Se4  1  0.016  0.718  0.323  1.0
  Se  Se5  1  0.984  0.282  0.677  1.0
  Se  Se6  1  0.472  0.811  0.828  1.0
  O  O7  1  0.554  0.569  0.733  1.0
  O  O8  1  0.900  0.060  0.741  1.0
  O  O9  1  0.446  0.431  0.267  1.0
  O  O10  1  0.101  0.940  0.259  1.0
  O  O11  1  0.197  0.755  0.916  1.0
  O  O12  1  0.248  0.224  0.567  1.0
  O  O13  1  0.262  0.733  0.492  1.0
  O  O14  1  0.305  0.173  0.005  1.0
  O  O15  1  0.737  0.267  0.508  1.0
  O  O16  1  0.696  0.828  0.995  1.0
  O  O17  1  0.751  0.776  0.433  1.0
  O  O18  1  0.803  0.245  0.085  1.0
[/CIF]
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