The structure described by MgTm2W2(O4Cl)2 crystallizes in the triclinic P1 space group. Mg(1) is bonded to one O(1), one O(2), one O(3), one O(5), one Cl(1), and one Cl(2) atom to form distorted MgCl2O4 octahedra that share  a cornercorner with one W(2)O5 trigonal bipyramid, corners with two equivalent W(1)O5 trigonal bipyramids, and  an edgeedge with one W(2)O5 trigonal bipyramid. There are two inequivalent Tm sites. In the first Tm site, Tm(1) is bonded in a 6-coordinate geometry to one O(1), one O(3), one O(5), one O(7), one O(8), and one Cl(2) atom. In the second Tm site, Tm(2) is bonded in a 6-coordinate geometry to one O(2), one O(4), one O(6), one O(7), one O(8), and one Cl(1) atom. There are two inequivalent W sites. In the first W site, W(1) is bonded to one O(1), one O(3), one O(4), one O(6), and one O(7) atom to form distorted WO5 trigonal bipyramids that share corners with two equivalent Mg(1)Cl2O4 octahedra and  an edgeedge with one W(2)O5 trigonal bipyramid. The corner-sharing octahedral tilt angles range from 39-65°. In the second W site, W(2) is bonded to one O(2), one O(3), one O(4), one O(5), and one O(8) atom to form distorted WO5 trigonal bipyramids that share  a cornercorner with one Mg(1)Cl2O4 octahedra,  an edgeedge with one Mg(1)Cl2O4 octahedra, and  an edgeedge with one W(1)O5 trigonal bipyramid. The corner-sharing octahedral tilt angles are 51°. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a distorted T-shaped geometry to one Mg(1), one Tm(1), and one W(1) atom. In the second O site, O(2) is bonded in a distorted trigonal planar geometry to one Mg(1), one Tm(2), and one W(2) atom. In the third O site, O(3) is bonded in a distorted see-saw-like geometry to one Mg(1), one Tm(1), one W(1), and one W(2) atom. In the fourth O site, O(4) is bonded in a distorted trigonal non-coplanar geometry to one Tm(2), one W(1), and one W(2) atom. In the fifth O site, O(5) is bonded in a 3-coordinate geometry to one Mg(1), one Tm(1), and one W(2) atom. In the sixth O site, O(6) is bonded in a bent 150 degrees geometry to one Tm(2) and one W(1) atom. In the seventh O site, O(7) is bonded in a distorted trigonal non-coplanar geometry to one Tm(1), one Tm(2), and one W(1) atom. In the eighth O site, O(8) is bonded in a trigonal non-coplanar geometry to one Tm(1), one Tm(2), and one W(2) atom. There are two inequivalent Cl sites. In the first Cl site, Cl(1) is bonded in a water-like geometry to one Mg(1) and one Tm(2) atom. In the second Cl site, Cl(2) is bonded in a bent 120 degrees geometry to one Mg(1) and one Tm(1) atom. is represented by the CIF file [CIF]
data_Tm2MgW2(ClO4)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.194
_cell_length_b   7.031
_cell_length_c   6.724
_cell_angle_alpha   72.643
_cell_angle_beta   78.946
_cell_angle_gamma   66.311
_symmetry_Int_Tables_number   1
_cell_volume   255.067
_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
  Tm  Tm0  1  0.317  0.194  0.807  1.0
  Tm  Tm1  1  0.688  0.783  0.198  1.0
  Mg  Mg2  1  0.221  0.666  0.584  1.0
  W  W3  1  0.347  0.399  0.195  1.0
  W  W4  1  0.647  0.610  0.796  1.0
  Cl  Cl5  1  0.008  0.916  0.288  1.0
  Cl  Cl6  1  0.045  0.004  0.754  1.0
  O  O7  1  0.365  0.368  0.489  1.0
  O  O8  1  0.537  0.718  0.512  1.0
  O  O9  1  0.401  0.475  0.850  1.0
  O  O10  1  0.584  0.537  0.120  1.0
  O  O11  1  0.969  0.497  0.748  1.0
  O  O12  1  0.027  0.510  0.191  1.0
  O  O13  1  0.442  0.122  0.133  1.0
  O  O14  1  0.589  0.880  0.853  1.0
[/CIF]
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The structure described by MgTm2W2(O4Cl)2 crystallizes in the triclinic P1 space group. Mg(1) is bonded to one O(1), one O(2), one O(3), one O(5), one Cl(1), and one Cl(2) atom to form distorted MgCl2O4 octahedra that share  a cornercorner with one W(2)O5 trigonal bipyramid, corners with two equivalent W(1)O5 trigonal bipyramids, and  an edgeedge with one W(2)O5 trigonal bipyramid. There are two inequivalent Tm sites. In the first Tm site, Tm(1) is bonded in a 6-coordinate geometry to one O(1), one O(3), one O(5), one O(7), one O(8), and one Cl(2) atom. In the second Tm site, Tm(2) is bonded in a 6-coordinate geometry to one O(2), one O(4), one O(6), one O(7), one O(8), and one Cl(1) atom. There are two inequivalent W sites. In the first W site, W(1) is bonded to one O(1), one O(3), one O(4), one O(6), and one O(7) atom to form distorted WO5 trigonal bipyramids that share corners with two equivalent Mg(1)Cl2O4 octahedra and  an edgeedge with one W(2)O5 trigonal bipyramid. The corner-sharing octahedral tilt angles range from 39-65°. In the second W site, W(2) is bonded to one O(2), one O(3), one O(4), one O(5), and one O(8) atom to form distorted WO5 trigonal bipyramids that share  a cornercorner with one Mg(1)Cl2O4 octahedra,  an edgeedge with one Mg(1)Cl2O4 octahedra, and  an edgeedge with one W(1)O5 trigonal bipyramid. The corner-sharing octahedral tilt angles are 51°. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a distorted T-shaped geometry to one Mg(1), one Tm(1), and one W(1) atom. In the second O site, O(2) is bonded in a distorted trigonal planar geometry to one Mg(1), one Tm(2), and one W(2) atom. In the third O site, O(3) is bonded in a distorted see-saw-like geometry to one Mg(1), one Tm(1), one W(1), and one W(2) atom. In the fourth O site, O(4) is bonded in a distorted trigonal non-coplanar geometry to one Tm(2), one W(1), and one W(2) atom. In the fifth O site, O(5) is bonded in a 3-coordinate geometry to one Mg(1), one Tm(1), and one W(2) atom. In the sixth O site, O(6) is bonded in a bent 150 degrees geometry to one Tm(2) and one W(1) atom. In the seventh O site, O(7) is bonded in a distorted trigonal non-coplanar geometry to one Tm(1), one Tm(2), and one W(1) atom. In the eighth O site, O(8) is bonded in a trigonal non-coplanar geometry to one Tm(1), one Tm(2), and one W(2) atom. There are two inequivalent Cl sites. In the first Cl site, Cl(1) is bonded in a water-like geometry to one Mg(1) and one Tm(2) atom. In the second Cl site, Cl(2) is bonded in a bent 120 degrees geometry to one Mg(1) and one Tm(1) atom. is represented by the CIF file [CIF]
data_Tm2MgW2(ClO4)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.194
_cell_length_b   7.031
_cell_length_c   6.724
_cell_angle_alpha   72.643
_cell_angle_beta   78.946
_cell_angle_gamma   66.311
_symmetry_Int_Tables_number   1
_cell_volume   255.067
_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
  Tm  Tm0  1  0.317  0.194  0.807  1.0
  Tm  Tm1  1  0.688  0.783  0.198  1.0
  Mg  Mg2  1  0.221  0.666  0.584  1.0
  W  W3  1  0.347  0.399  0.195  1.0
  W  W4  1  0.647  0.610  0.796  1.0
  Cl  Cl5  1  0.008  0.916  0.288  1.0
  Cl  Cl6  1  0.045  0.004  0.754  1.0
  O  O7  1  0.365  0.368  0.489  1.0
  O  O8  1  0.537  0.718  0.512  1.0
  O  O9  1  0.401  0.475  0.850  1.0
  O  O10  1  0.584  0.537  0.120  1.0
  O  O11  1  0.969  0.497  0.748  1.0
  O  O12  1  0.027  0.510  0.191  1.0
  O  O13  1  0.442  0.122  0.133  1.0
  O  O14  1  0.589  0.880  0.853  1.0
[/CIF]
.