The material described by MgAu4Se4(O3Cl)4 crystallizes in the triclinic P1 space group. Mg(1) is bonded in a 5-coordinate geometry to one O(10), one O(3), one O(5), one O(6), and one O(7) atom. There are four inequivalent Au sites. In the first Au site, Au(1) is bonded in a distorted bent 150 degrees geometry to one Cl(3) and two equivalent Cl(2) atoms. In the second Au site, Au(2) is bonded in a rectangular see-saw-like geometry to one O(1), one O(11), one O(4), and one O(6) atom. In the third Au site, Au(3) is bonded in a rectangular see-saw-like geometry to one O(10), one O(2), one O(8), and one Cl(1) atom. In the fourth Au site, Au(4) is bonded in a square co-planar geometry to one O(12), one O(9), one Cl(3), and one Cl(4) atom. There are four inequivalent Se sites. In the first Se site, Se(1) is bonded in a trigonal non-coplanar geometry to one O(1), one O(3), and one O(9) atom. In the second Se site, Se(2) is bonded in a 3-coordinate geometry to one O(10), one O(6), 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(4), and one O(5) atom. In the fourth Se site, Se(4) is bonded in a distorted trigonal non-coplanar geometry to one O(11), one O(12), and one O(8) atom. There are twelve inequivalent O sites. In the first O site, O(1) is bonded in a bent 120 degrees geometry to one Au(2) and one Se(1) atom. In the second O site, O(2) is bonded in a bent 120 degrees geometry to one Au(3) and one Se(3) atom. In the third O site, O(3) is bonded in a bent 120 degrees geometry to one Mg(1) and one Se(1) atom. In the fourth O site, O(4) is bonded in a bent 120 degrees geometry to one Au(2) and one Se(3) atom. In the fifth O site, O(5) is bonded in a bent 120 degrees geometry to one Mg(1) and one Se(3) atom. In the sixth O site, O(6) is bonded in a distorted trigonal planar geometry to one Mg(1), one Au(2), and one Se(2) atom. In the seventh O site, O(7) is bonded in a distorted bent 120 degrees geometry to one Mg(1) and one Se(2) atom. In the eighth O site, O(8) is bonded in a bent 120 degrees geometry to one Au(3) and one Se(4) atom. In the ninth O site, O(9) is bonded in a bent 120 degrees geometry to one Au(4) and one Se(1) atom. In the tenth O site, O(10) is bonded in a distorted trigonal planar geometry to one Mg(1), one Au(3), and one Se(2) atom. In the eleventh O site, O(11) is bonded in a bent 120 degrees geometry to one Au(2) and one Se(4) atom. In the twelfth O site, O(12) is bonded in a bent 120 degrees geometry to one Au(4) and one Se(4) atom. There are four inequivalent Cl sites. In the first Cl site, Cl(1) is bonded in a single-bond geometry to one Au(3) atom. In the second Cl site, Cl(2) is bonded in a bent 150 degrees geometry to two equivalent Au(1) atoms. In the third Cl site, Cl(3) is bonded in a distorted single-bond geometry to one Au(1) and one Au(4) atom. In the fourth Cl site, Cl(4) is bonded in a single-bond geometry to one Au(4) atom. is represented by the CIF file [CIF]
data_MgAu4Se4(ClO3)4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.568
_cell_length_b   9.862
_cell_length_c   11.322
_cell_angle_alpha   86.697
_cell_angle_beta   92.209
_cell_angle_gamma   85.761
_symmetry_Int_Tables_number   1
_cell_volume   507.297
_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  0.835  0.640  0.068  1.0
  Au  Au1  1  0.024  0.486  0.400  1.0
  Au  Au2  1  0.015  0.020  0.995  1.0
  Au  Au3  1  0.980  0.417  0.818  1.0
  Au  Au4  1  0.027  0.993  0.489  1.0
  Se  Se5  1  0.725  0.898  0.243  1.0
  Se  Se6  1  0.230  0.724  0.884  1.0
  Se  Se7  1  0.767  0.311  0.077  1.0
  Se  Se8  1  0.264  0.124  0.732  1.0
  Cl  Cl9  1  0.307  0.486  0.682  1.0
  Cl  Cl10  1  0.514  0.524  0.356  1.0
  Cl  Cl11  1  0.264  0.192  0.462  1.0
  Cl  Cl12  1  0.757  0.805  0.514  1.0
  O  O13  1  0.688  0.004  0.110  1.0
  O  O14  1  0.656  0.362  0.929  1.0
  O  O15  1  0.908  0.755  0.201  1.0
  O  O16  1  0.089  0.205  0.054  1.0
  O  O17  1  0.940  0.446  0.123  1.0
  O  O18  1  0.941  0.833  0.937  1.0
  O  O19  1  0.405  0.675  0.016  1.0
  O  O20  1  0.948  0.233  0.751  1.0
  O  O21  1  0.014  0.981  0.311  1.0
  O  O22  1  0.956  0.603  0.889  1.0
  O  O23  1  0.332  0.041  0.873  1.0
  O  O24  1  0.067  0.999  0.669  1.0
[/CIF]
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The material described by MgAu4Se4(O3Cl)4 crystallizes in the triclinic P1 space group. Mg(1) is bonded in a 5-coordinate geometry to one O(10), one O(3), one O(5), one O(6), and one O(7) atom. There are four inequivalent Au sites. In the first Au site, Au(1) is bonded in a distorted bent 150 degrees geometry to one Cl(3) and two equivalent Cl(2) atoms. In the second Au site, Au(2) is bonded in a rectangular see-saw-like geometry to one O(1), one O(11), one O(4), and one O(6) atom. In the third Au site, Au(3) is bonded in a rectangular see-saw-like geometry to one O(10), one O(2), one O(8), and one Cl(1) atom. In the fourth Au site, Au(4) is bonded in a square co-planar geometry to one O(12), one O(9), one Cl(3), and one Cl(4) atom. There are four inequivalent Se sites. In the first Se site, Se(1) is bonded in a trigonal non-coplanar geometry to one O(1), one O(3), and one O(9) atom. In the second Se site, Se(2) is bonded in a 3-coordinate geometry to one O(10), one O(6), 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(4), and one O(5) atom. In the fourth Se site, Se(4) is bonded in a distorted trigonal non-coplanar geometry to one O(11), one O(12), and one O(8) atom. There are twelve inequivalent O sites. In the first O site, O(1) is bonded in a bent 120 degrees geometry to one Au(2) and one Se(1) atom. In the second O site, O(2) is bonded in a bent 120 degrees geometry to one Au(3) and one Se(3) atom. In the third O site, O(3) is bonded in a bent 120 degrees geometry to one Mg(1) and one Se(1) atom. In the fourth O site, O(4) is bonded in a bent 120 degrees geometry to one Au(2) and one Se(3) atom. In the fifth O site, O(5) is bonded in a bent 120 degrees geometry to one Mg(1) and one Se(3) atom. In the sixth O site, O(6) is bonded in a distorted trigonal planar geometry to one Mg(1), one Au(2), and one Se(2) atom. In the seventh O site, O(7) is bonded in a distorted bent 120 degrees geometry to one Mg(1) and one Se(2) atom. In the eighth O site, O(8) is bonded in a bent 120 degrees geometry to one Au(3) and one Se(4) atom. In the ninth O site, O(9) is bonded in a bent 120 degrees geometry to one Au(4) and one Se(1) atom. In the tenth O site, O(10) is bonded in a distorted trigonal planar geometry to one Mg(1), one Au(3), and one Se(2) atom. In the eleventh O site, O(11) is bonded in a bent 120 degrees geometry to one Au(2) and one Se(4) atom. In the twelfth O site, O(12) is bonded in a bent 120 degrees geometry to one Au(4) and one Se(4) atom. There are four inequivalent Cl sites. In the first Cl site, Cl(1) is bonded in a single-bond geometry to one Au(3) atom. In the second Cl site, Cl(2) is bonded in a bent 150 degrees geometry to two equivalent Au(1) atoms. In the third Cl site, Cl(3) is bonded in a distorted single-bond geometry to one Au(1) and one Au(4) atom. In the fourth Cl site, Cl(4) is bonded in a single-bond geometry to one Au(4) atom. is represented by the CIF file [CIF]
data_MgAu4Se4(ClO3)4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.568
_cell_length_b   9.862
_cell_length_c   11.322
_cell_angle_alpha   86.697
_cell_angle_beta   92.209
_cell_angle_gamma   85.761
_symmetry_Int_Tables_number   1
_cell_volume   507.297
_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  0.835  0.640  0.068  1.0
  Au  Au1  1  0.024  0.486  0.400  1.0
  Au  Au2  1  0.015  0.020  0.995  1.0
  Au  Au3  1  0.980  0.417  0.818  1.0
  Au  Au4  1  0.027  0.993  0.489  1.0
  Se  Se5  1  0.725  0.898  0.243  1.0
  Se  Se6  1  0.230  0.724  0.884  1.0
  Se  Se7  1  0.767  0.311  0.077  1.0
  Se  Se8  1  0.264  0.124  0.732  1.0
  Cl  Cl9  1  0.307  0.486  0.682  1.0
  Cl  Cl10  1  0.514  0.524  0.356  1.0
  Cl  Cl11  1  0.264  0.192  0.462  1.0
  Cl  Cl12  1  0.757  0.805  0.514  1.0
  O  O13  1  0.688  0.004  0.110  1.0
  O  O14  1  0.656  0.362  0.929  1.0
  O  O15  1  0.908  0.755  0.201  1.0
  O  O16  1  0.089  0.205  0.054  1.0
  O  O17  1  0.940  0.446  0.123  1.0
  O  O18  1  0.941  0.833  0.937  1.0
  O  O19  1  0.405  0.675  0.016  1.0
  O  O20  1  0.948  0.233  0.751  1.0
  O  O21  1  0.014  0.981  0.311  1.0
  O  O22  1  0.956  0.603  0.889  1.0
  O  O23  1  0.332  0.041  0.873  1.0
  O  O24  1  0.067  0.999  0.669  1.0
[/CIF]
.