The material structure described by Ba10MgAs6(O12Cl)2 crystallizes in the triclinic P1 space group. There are ten inequivalent Ba sites. In the first Ba site, Ba(1) is bonded in a 8-coordinate geometry to one O(12), one O(16), one O(18), one O(24), one O(3), one O(6), one O(7), and one O(9) atom. In the second Ba site, Ba(2) is bonded in a 9-coordinate geometry to one O(13), one O(19), one O(2), one O(21), one O(22), one O(23), one O(4), one O(5), and one O(8) atom. In the third Ba site, Ba(3) is bonded in a 4-coordinate geometry to one O(11), one O(12), one O(2), one O(5), one Cl(1), and one Cl(2) atom. In the fourth Ba site, Ba(4) is bonded in a 8-coordinate geometry to one O(11), one O(13), one O(19), one O(2), one O(20), one O(21), one O(4), and one O(8) atom. In the fifth Ba site, Ba(5) is bonded in a 9-coordinate geometry to one O(1), one O(10), one O(14), one O(15), one O(21), one O(23), one O(9), one Cl(1), and one Cl(2) atom. In the sixth Ba site, Ba(6) is bonded in a 7-coordinate geometry to one O(17), one O(20), one O(22), one O(24), one O(3), one Cl(1), and one Cl(2) atom. In the seventh Ba site, Ba(7) is bonded in a 8-coordinate geometry to one O(1), one O(10), one O(13), one O(18), one O(23), one O(7), one Cl(1), and one Cl(2) atom. In the eighth Ba site, Ba(8) is bonded in a 8-coordinate geometry to one O(14), one O(15), one O(20), one O(22), one O(6), one O(8), one Cl(1), and one Cl(2) atom. In the ninth Ba site, Ba(9) is bonded in a 7-coordinate geometry to one O(12), one O(14), one O(17), one O(24), one O(6), one O(7), and one O(9) atom. In the tenth Ba site, Ba(10) is bonded in a 8-coordinate geometry to one O(11), one O(16), one O(17), one O(3), one O(4), one O(5), one Cl(1), and one Cl(2) atom. Mg(1) is bonded to one O(10), one O(13), one O(16), one O(24), and one O(7) atom to form distorted MgO5 trigonal bipyramids that share  an edgeedge with one As(3)O4 tetrahedra and  an edgeedge with one As(6)O4 tetrahedra. There are six inequivalent As sites. In the first As site, As(1) is bonded in a tetrahedral geometry to one O(12), one O(14), one O(15), and one O(19) atom. In the second As site, As(2) is bonded in a tetrahedral geometry to one O(1), one O(23), one O(4), and one O(6) atom. In the third As site, As(3) is bonded to one O(13), one O(16), one O(20), and one O(22) atom to form AsO4 tetrahedra that share  an edgeedge with one Mg(1)O5 trigonal bipyramid. In the fourth As site, As(4) is bonded in a tetrahedral geometry to one O(17), one O(2), one O(3), and one O(9) atom. In the fifth As site, As(5) is bonded in a distorted trigonal non-coplanar geometry to one O(11), one O(5), and one O(8) atom. In the sixth As site, As(6) is bonded to one O(10), one O(18), one O(21), and one O(24) atom to form AsO4 tetrahedra that share  an edgeedge with one Mg(1)O5 trigonal bipyramid. There are twenty-four inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to one Ba(5), one Ba(7), and one As(2) atom. In the second O site, O(2) is bonded in a distorted rectangular see-saw-like geometry to one Ba(2), one Ba(3), one Ba(4), and one As(4) atom. In the third O site, O(3) is bonded in a distorted single-bond geometry to one Ba(1), one Ba(10), one Ba(6), and one As(4) atom. In the fourth O site, O(4) is bonded in a 4-coordinate geometry to one Ba(10), one Ba(2), one Ba(4), and one As(2) atom. In the fifth O site, O(5) is bonded in a 4-coordinate geometry to one Ba(10), one Ba(2), one Ba(3), and one As(5) atom. In the sixth O site, O(6) is bonded in a 4-coordinate geometry to one Ba(1), one Ba(8), one Ba(9), and one As(2) atom. In the seventh O site, O(7) is bonded in a 4-coordinate geometry to one Ba(1), one Ba(7), one Ba(9), and one Mg(1) atom. In the eighth O site, O(8) is bonded to one Ba(2), one Ba(4), one Ba(8), and one As(5) atom to form OBa3As tetrahedra that share  a cornercorner with one Cl(1)Ba6 octahedra and  a cornercorner with one Cl(2)Ba6 octahedra. The corner-sharing octahedral tilt angles range from 51-52°. In the ninth O site, O(9) is bonded in a 4-coordinate geometry to one Ba(1), one Ba(5), one Ba(9), and one As(4) atom. In the tenth O site, O(10) is bonded in a 2-coordinate geometry to one Ba(5), one Ba(7), one Mg(1), and one As(6) atom. In the eleventh O site, O(11) is bonded in a 4-coordinate geometry to one Ba(10), one Ba(3), one Ba(4), and one As(5) atom. In the twelfth O site, O(12) is bonded to one Ba(1), one Ba(3), one Ba(9), and one As(1) atom to form distorted OBa3As tetrahedra that share  a cornercorner with one Cl(1)Ba6 octahedra and  a cornercorner with one Cl(2)Ba6 octahedra. The corner-sharing octahedral tilt angles range from 46-55°. In the thirteenth O site, O(13) is bonded in a distorted L-shaped geometry to one Ba(2), one Ba(4), one Ba(7), one Mg(1), and one As(3) atom. In the fourteenth O site, O(14) is bonded in a 4-coordinate geometry to one Ba(5), one Ba(8), one Ba(9), and one As(1) atom. In the fifteenth O site, O(15) is bonded in a 3-coordinate geometry to one Ba(5), one Ba(8), and one As(1) atom. In the sixteenth O site, O(16) is bonded in a 2-coordinate geometry to one Ba(1), one Ba(10), one Mg(1), and one As(3) atom. In the seventeenth O site, O(17) is bonded in a 4-coordinate geometry to one Ba(10), one Ba(6), one Ba(9), and one As(4) atom. In the eighteenth O site, O(18) is bonded in a 3-coordinate geometry to one Ba(1), one Ba(7), and one As(6) atom. In the nineteenth O site, O(19) is bonded in a 3-coordinate geometry to one Ba(2), one Ba(4), and one As(1) atom. In the twentieth O site, O(20) is bonded in a 1-coordinate geometry to one Ba(4), one Ba(6), one Ba(8), and one As(3) atom. In the twenty-first O site, O(21) is bonded in a 3-coordinate geometry to one Ba(2), one Ba(4), one Ba(5), and one As(6) atom. In the twenty-second O site, O(22) is bonded in a 4-coordinate geometry to one Ba(2), one Ba(6), one Ba(8), and one As(3) atom. In the twenty-third O site, O(23) is bonded in a 1-coordinate geometry to one Ba(2), one Ba(5), one Ba(7), and one As(2) atom. In the twenty-fourth O site, O(24) is bonded in a 2-coordinate geometry to one Ba(1), one Ba(6), one Ba(9), one Mg(1), and one As(6) atom. There are two inequivalent Cl sites. In the first Cl site, Cl(1) is bonded to one Ba(10), one Ba(3), one Ba(5), one Ba(6), one Ba(7), and one Ba(8) atom to form ClBa6 octahedra that share  a cornercorner with one O(12)Ba3As tetrahedra,  a cornercorner with one O(8)Ba3As tetrahedra, and faces with two equivalent Cl(2)Ba6 octahedra. In the second Cl site, Cl(2) is bonded to one Ba(10), one Ba(3), one Ba(5), one Ba(6), one Ba(7), and one Ba(8) atom to form ClBa6 octahedra that share  a cornercorner with one O(12)Ba3As tetrahedra,  a cornercorner with one O(8)Ba3As tetrahedra, and faces with two equivalent Cl(1)Ba6 octahedra. is represented by the CIF file [CIF]
data_Ba10MgAs6(ClO12)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   11.014
_cell_length_b   10.882
_cell_length_c   7.796
_cell_angle_alpha   88.396
_cell_angle_beta   91.791
_cell_angle_gamma   117.055
_symmetry_Int_Tables_number   1
_cell_volume   831.589
_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
  Ba  Ba0  1  0.663  0.308  0.521  1.0
  Ba  Ba1  1  0.332  0.660  0.502  1.0
  Ba  Ba2  1  0.036  0.290  0.244  1.0
  Ba  Ba3  1  0.321  0.654  0.002  1.0
  Ba  Ba4  1  0.761  0.765  0.239  1.0
  Ba  Ba5  1  0.263  0.015  0.236  1.0
  Ba  Ba6  1  0.783  0.012  0.736  1.0
  Ba  Ba7  1  0.991  0.740  0.739  1.0
  Ba  Ba8  1  0.687  0.391  0.006  1.0
  Ba  Ba9  1  0.267  0.276  0.752  1.0
  Mg  Mg10  1  0.575  0.079  0.921  1.0
  As  As11  1  0.969  0.592  0.251  1.0
  As  As12  1  0.617  0.643  0.732  1.0
  As  As13  1  0.337  0.949  0.753  1.0
  As  As14  1  0.419  0.382  0.258  1.0
  As  As15  1  0.042  0.428  0.737  1.0
  As  As16  1  0.615  0.008  0.250  1.0
  Cl  Cl17  1  0.024  0.026  0.996  1.0
  Cl  Cl18  1  0.013  0.019  0.482  1.0
  O  O19  1  0.691  0.748  0.905  1.0
  O  O20  1  0.326  0.474  0.260  1.0
  O  O21  1  0.381  0.267  0.430  1.0
  O  O22  1  0.442  0.553  0.756  1.0
  O  O23  1  0.121  0.381  0.568  1.0
  O  O24  1  0.687  0.529  0.719  1.0
  O  O25  1  0.721  0.220  0.800  1.0
  O  O26  1  0.148  0.614  0.739  1.0
  O  O27  1  0.592  0.489  0.262  1.0
  O  O28  1  0.715  0.018  0.080  1.0
  O  O29  1  0.118  0.384  0.923  1.0
  O  O30  1  0.873  0.413  0.268  1.0
  O  O31  1  0.466  0.897  0.794  1.0
  O  O32  1  0.909  0.639  0.064  1.0
  O  O33  1  0.928  0.669  0.412  1.0
  O  O34  1  0.427  0.126  0.779  1.0
  O  O35  1  0.379  0.282  0.077  1.0
  O  O36  1  0.709  0.083  0.430  1.0
  O  O37  1  0.139  0.634  0.245  1.0
  O  O38  1  0.227  0.882  0.921  1.0
  O  O39  1  0.491  0.840  0.269  1.0
  O  O40  1  0.261  0.898  0.556  1.0
  O  O41  1  0.652  0.751  0.555  1.0
  O  O42  1  0.536  0.108  0.171  1.0
[/CIF]
.
The material structure described by Ba10MgAs6(O12Cl)2 crystallizes in the triclinic P1 space group. There are ten inequivalent Ba sites. In the first Ba site, Ba(1) is bonded in a 8-coordinate geometry to one O(12), one O(16), one O(18), one O(24), one O(3), one O(6), one O(7), and one O(9) atom. In the second Ba site, Ba(2) is bonded in a 9-coordinate geometry to one O(13), one O(19), one O(2), one O(21), one O(22), one O(23), one O(4), one O(5), and one O(8) atom. In the third Ba site, Ba(3) is bonded in a 4-coordinate geometry to one O(11), one O(12), one O(2), one O(5), one Cl(1), and one Cl(2) atom. In the fourth Ba site, Ba(4) is bonded in a 8-coordinate geometry to one O(11), one O(13), one O(19), one O(2), one O(20), one O(21), one O(4), and one O(8) atom. In the fifth Ba site, Ba(5) is bonded in a 9-coordinate geometry to one O(1), one O(10), one O(14), one O(15), one O(21), one O(23), one O(9), one Cl(1), and one Cl(2) atom. In the sixth Ba site, Ba(6) is bonded in a 7-coordinate geometry to one O(17), one O(20), one O(22), one O(24), one O(3), one Cl(1), and one Cl(2) atom. In the seventh Ba site, Ba(7) is bonded in a 8-coordinate geometry to one O(1), one O(10), one O(13), one O(18), one O(23), one O(7), one Cl(1), and one Cl(2) atom. In the eighth Ba site, Ba(8) is bonded in a 8-coordinate geometry to one O(14), one O(15), one O(20), one O(22), one O(6), one O(8), one Cl(1), and one Cl(2) atom. In the ninth Ba site, Ba(9) is bonded in a 7-coordinate geometry to one O(12), one O(14), one O(17), one O(24), one O(6), one O(7), and one O(9) atom. In the tenth Ba site, Ba(10) is bonded in a 8-coordinate geometry to one O(11), one O(16), one O(17), one O(3), one O(4), one O(5), one Cl(1), and one Cl(2) atom. Mg(1) is bonded to one O(10), one O(13), one O(16), one O(24), and one O(7) atom to form distorted MgO5 trigonal bipyramids that share  an edgeedge with one As(3)O4 tetrahedra and  an edgeedge with one As(6)O4 tetrahedra. There are six inequivalent As sites. In the first As site, As(1) is bonded in a tetrahedral geometry to one O(12), one O(14), one O(15), and one O(19) atom. In the second As site, As(2) is bonded in a tetrahedral geometry to one O(1), one O(23), one O(4), and one O(6) atom. In the third As site, As(3) is bonded to one O(13), one O(16), one O(20), and one O(22) atom to form AsO4 tetrahedra that share  an edgeedge with one Mg(1)O5 trigonal bipyramid. In the fourth As site, As(4) is bonded in a tetrahedral geometry to one O(17), one O(2), one O(3), and one O(9) atom. In the fifth As site, As(5) is bonded in a distorted trigonal non-coplanar geometry to one O(11), one O(5), and one O(8) atom. In the sixth As site, As(6) is bonded to one O(10), one O(18), one O(21), and one O(24) atom to form AsO4 tetrahedra that share  an edgeedge with one Mg(1)O5 trigonal bipyramid. There are twenty-four inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to one Ba(5), one Ba(7), and one As(2) atom. In the second O site, O(2) is bonded in a distorted rectangular see-saw-like geometry to one Ba(2), one Ba(3), one Ba(4), and one As(4) atom. In the third O site, O(3) is bonded in a distorted single-bond geometry to one Ba(1), one Ba(10), one Ba(6), and one As(4) atom. In the fourth O site, O(4) is bonded in a 4-coordinate geometry to one Ba(10), one Ba(2), one Ba(4), and one As(2) atom. In the fifth O site, O(5) is bonded in a 4-coordinate geometry to one Ba(10), one Ba(2), one Ba(3), and one As(5) atom. In the sixth O site, O(6) is bonded in a 4-coordinate geometry to one Ba(1), one Ba(8), one Ba(9), and one As(2) atom. In the seventh O site, O(7) is bonded in a 4-coordinate geometry to one Ba(1), one Ba(7), one Ba(9), and one Mg(1) atom. In the eighth O site, O(8) is bonded to one Ba(2), one Ba(4), one Ba(8), and one As(5) atom to form OBa3As tetrahedra that share  a cornercorner with one Cl(1)Ba6 octahedra and  a cornercorner with one Cl(2)Ba6 octahedra. The corner-sharing octahedral tilt angles range from 51-52°. In the ninth O site, O(9) is bonded in a 4-coordinate geometry to one Ba(1), one Ba(5), one Ba(9), and one As(4) atom. In the tenth O site, O(10) is bonded in a 2-coordinate geometry to one Ba(5), one Ba(7), one Mg(1), and one As(6) atom. In the eleventh O site, O(11) is bonded in a 4-coordinate geometry to one Ba(10), one Ba(3), one Ba(4), and one As(5) atom. In the twelfth O site, O(12) is bonded to one Ba(1), one Ba(3), one Ba(9), and one As(1) atom to form distorted OBa3As tetrahedra that share  a cornercorner with one Cl(1)Ba6 octahedra and  a cornercorner with one Cl(2)Ba6 octahedra. The corner-sharing octahedral tilt angles range from 46-55°. In the thirteenth O site, O(13) is bonded in a distorted L-shaped geometry to one Ba(2), one Ba(4), one Ba(7), one Mg(1), and one As(3) atom. In the fourteenth O site, O(14) is bonded in a 4-coordinate geometry to one Ba(5), one Ba(8), one Ba(9), and one As(1) atom. In the fifteenth O site, O(15) is bonded in a 3-coordinate geometry to one Ba(5), one Ba(8), and one As(1) atom. In the sixteenth O site, O(16) is bonded in a 2-coordinate geometry to one Ba(1), one Ba(10), one Mg(1), and one As(3) atom. In the seventeenth O site, O(17) is bonded in a 4-coordinate geometry to one Ba(10), one Ba(6), one Ba(9), and one As(4) atom. In the eighteenth O site, O(18) is bonded in a 3-coordinate geometry to one Ba(1), one Ba(7), and one As(6) atom. In the nineteenth O site, O(19) is bonded in a 3-coordinate geometry to one Ba(2), one Ba(4), and one As(1) atom. In the twentieth O site, O(20) is bonded in a 1-coordinate geometry to one Ba(4), one Ba(6), one Ba(8), and one As(3) atom. In the twenty-first O site, O(21) is bonded in a 3-coordinate geometry to one Ba(2), one Ba(4), one Ba(5), and one As(6) atom. In the twenty-second O site, O(22) is bonded in a 4-coordinate geometry to one Ba(2), one Ba(6), one Ba(8), and one As(3) atom. In the twenty-third O site, O(23) is bonded in a 1-coordinate geometry to one Ba(2), one Ba(5), one Ba(7), and one As(2) atom. In the twenty-fourth O site, O(24) is bonded in a 2-coordinate geometry to one Ba(1), one Ba(6), one Ba(9), one Mg(1), and one As(6) atom. There are two inequivalent Cl sites. In the first Cl site, Cl(1) is bonded to one Ba(10), one Ba(3), one Ba(5), one Ba(6), one Ba(7), and one Ba(8) atom to form ClBa6 octahedra that share  a cornercorner with one O(12)Ba3As tetrahedra,  a cornercorner with one O(8)Ba3As tetrahedra, and faces with two equivalent Cl(2)Ba6 octahedra. In the second Cl site, Cl(2) is bonded to one Ba(10), one Ba(3), one Ba(5), one Ba(6), one Ba(7), and one Ba(8) atom to form ClBa6 octahedra that share  a cornercorner with one O(12)Ba3As tetrahedra,  a cornercorner with one O(8)Ba3As tetrahedra, and faces with two equivalent Cl(1)Ba6 octahedra. is represented by the CIF file [CIF]
data_Ba10MgAs6(ClO12)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   11.014
_cell_length_b   10.882
_cell_length_c   7.796
_cell_angle_alpha   88.396
_cell_angle_beta   91.791
_cell_angle_gamma   117.055
_symmetry_Int_Tables_number   1
_cell_volume   831.589
_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
  Ba  Ba0  1  0.663  0.308  0.521  1.0
  Ba  Ba1  1  0.332  0.660  0.502  1.0
  Ba  Ba2  1  0.036  0.290  0.244  1.0
  Ba  Ba3  1  0.321  0.654  0.002  1.0
  Ba  Ba4  1  0.761  0.765  0.239  1.0
  Ba  Ba5  1  0.263  0.015  0.236  1.0
  Ba  Ba6  1  0.783  0.012  0.736  1.0
  Ba  Ba7  1  0.991  0.740  0.739  1.0
  Ba  Ba8  1  0.687  0.391  0.006  1.0
  Ba  Ba9  1  0.267  0.276  0.752  1.0
  Mg  Mg10  1  0.575  0.079  0.921  1.0
  As  As11  1  0.969  0.592  0.251  1.0
  As  As12  1  0.617  0.643  0.732  1.0
  As  As13  1  0.337  0.949  0.753  1.0
  As  As14  1  0.419  0.382  0.258  1.0
  As  As15  1  0.042  0.428  0.737  1.0
  As  As16  1  0.615  0.008  0.250  1.0
  Cl  Cl17  1  0.024  0.026  0.996  1.0
  Cl  Cl18  1  0.013  0.019  0.482  1.0
  O  O19  1  0.691  0.748  0.905  1.0
  O  O20  1  0.326  0.474  0.260  1.0
  O  O21  1  0.381  0.267  0.430  1.0
  O  O22  1  0.442  0.553  0.756  1.0
  O  O23  1  0.121  0.381  0.568  1.0
  O  O24  1  0.687  0.529  0.719  1.0
  O  O25  1  0.721  0.220  0.800  1.0
  O  O26  1  0.148  0.614  0.739  1.0
  O  O27  1  0.592  0.489  0.262  1.0
  O  O28  1  0.715  0.018  0.080  1.0
  O  O29  1  0.118  0.384  0.923  1.0
  O  O30  1  0.873  0.413  0.268  1.0
  O  O31  1  0.466  0.897  0.794  1.0
  O  O32  1  0.909  0.639  0.064  1.0
  O  O33  1  0.928  0.669  0.412  1.0
  O  O34  1  0.427  0.126  0.779  1.0
  O  O35  1  0.379  0.282  0.077  1.0
  O  O36  1  0.709  0.083  0.430  1.0
  O  O37  1  0.139  0.634  0.245  1.0
  O  O38  1  0.227  0.882  0.921  1.0
  O  O39  1  0.491  0.840  0.269  1.0
  O  O40  1  0.261  0.898  0.556  1.0
  O  O41  1  0.652  0.751  0.555  1.0
  O  O42  1  0.536  0.108  0.171  1.0
[/CIF]
.