The compound described by Rb4Mg(WO4)2 crystallizes in the monoclinic Cm space group. There are four inequivalent Rb sites. In the first Rb site, Rb(1) is bonded in a 7-coordinate geometry to one O(5), two equivalent O(1), two equivalent O(2), and two equivalent O(4) atoms. In the second Rb site, Rb(2) is bonded in a 8-coordinate geometry to one Mg(1), one O(6), two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms. In the third Rb site, Rb(3) is bonded in a 8-coordinate geometry to one Mg(1), one O(3), two equivalent O(1), two equivalent O(2), and two equivalent O(6) atoms. In the fourth Rb site, Rb(4) is bonded in a 7-coordinate geometry to one O(4), two equivalent O(1), two equivalent O(2), and two equivalent O(5) atoms. Mg(1) is bonded in an L-shaped geometry to one Rb(2), one Rb(3), one O(4), and one O(5) atom. There are two inequivalent W sites. In the first W site, W(1) is bonded in a tetrahedral geometry to one O(4), one O(5), and two equivalent O(1) atoms. In the second W site, W(2) is bonded in a tetrahedral geometry to one O(3), one O(6), and two equivalent O(2) atoms. There are six inequivalent O sites. In the first O site, O(1) is bonded in a 5-coordinate geometry to one Rb(1), one Rb(2), one Rb(3), one Rb(4), and one W(1) atom. In the second O site, O(2) is bonded in a 5-coordinate geometry to one Rb(1), one Rb(2), one Rb(3), one Rb(4), and one W(2) atom. In the third O site, O(3) is bonded in a 4-coordinate geometry to one Rb(3), two equivalent Rb(2), and one W(2) atom. In the fourth O site, O(4) is bonded in a 5-coordinate geometry to one Rb(4), two equivalent Rb(1), one Mg(1), and one W(1) atom. In the fifth O site, O(5) is bonded in a 2-coordinate geometry to one Rb(1), two equivalent Rb(4), one Mg(1), and one W(1) atom. In the sixth O site, O(6) is bonded in a 4-coordinate geometry to one Rb(2), two equivalent Rb(3), and one W(2) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Rb4Mg(WO4)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.396
_cell_length_b   7.210
_cell_length_c   9.783
_cell_angle_alpha   110.194
_cell_angle_beta   90.000
_cell_angle_gamma   116.332
_symmetry_Int_Tables_number   1
_cell_volume   373.160
_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
  Rb  Rb0  1  0.844  0.688  0.218  1.0
  Rb  Rb1  1  0.163  0.325  0.802  1.0
  Rb  Rb2  1  0.511  0.022  0.830  1.0
  Rb  Rb3  1  0.498  0.997  0.202  1.0
  Mg  Mg4  1  0.250  0.500  0.487  1.0
  W  W5  1  0.163  0.326  0.172  1.0
  W  W6  1  0.833  0.667  0.823  1.0
  O  O7  1  0.391  0.285  0.072  1.0
  O  O8  1  0.092  0.723  0.942  1.0
  O  O9  1  0.631  0.723  0.942  1.0
  O  O10  1  0.894  0.285  0.072  1.0
  O  O11  1  0.685  0.370  0.703  1.0
  O  O12  1  0.313  0.625  0.333  1.0
  O  O13  1  0.100  0.200  0.326  1.0
  O  O14  1  0.924  0.848  0.719  1.0
[/CIF]
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The compound described by Rb4Mg(WO4)2 crystallizes in the monoclinic Cm space group. There are four inequivalent Rb sites. In the first Rb site, Rb(1) is bonded in a 7-coordinate geometry to one O(5), two equivalent O(1), two equivalent O(2), and two equivalent O(4) atoms. In the second Rb site, Rb(2) is bonded in a 8-coordinate geometry to one Mg(1), one O(6), two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms. In the third Rb site, Rb(3) is bonded in a 8-coordinate geometry to one Mg(1), one O(3), two equivalent O(1), two equivalent O(2), and two equivalent O(6) atoms. In the fourth Rb site, Rb(4) is bonded in a 7-coordinate geometry to one O(4), two equivalent O(1), two equivalent O(2), and two equivalent O(5) atoms. Mg(1) is bonded in an L-shaped geometry to one Rb(2), one Rb(3), one O(4), and one O(5) atom. There are two inequivalent W sites. In the first W site, W(1) is bonded in a tetrahedral geometry to one O(4), one O(5), and two equivalent O(1) atoms. In the second W site, W(2) is bonded in a tetrahedral geometry to one O(3), one O(6), and two equivalent O(2) atoms. There are six inequivalent O sites. In the first O site, O(1) is bonded in a 5-coordinate geometry to one Rb(1), one Rb(2), one Rb(3), one Rb(4), and one W(1) atom. In the second O site, O(2) is bonded in a 5-coordinate geometry to one Rb(1), one Rb(2), one Rb(3), one Rb(4), and one W(2) atom. In the third O site, O(3) is bonded in a 4-coordinate geometry to one Rb(3), two equivalent Rb(2), and one W(2) atom. In the fourth O site, O(4) is bonded in a 5-coordinate geometry to one Rb(4), two equivalent Rb(1), one Mg(1), and one W(1) atom. In the fifth O site, O(5) is bonded in a 2-coordinate geometry to one Rb(1), two equivalent Rb(4), one Mg(1), and one W(1) atom. In the sixth O site, O(6) is bonded in a 4-coordinate geometry to one Rb(2), two equivalent Rb(3), and one W(2) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Rb4Mg(WO4)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.396
_cell_length_b   7.210
_cell_length_c   9.783
_cell_angle_alpha   110.194
_cell_angle_beta   90.000
_cell_angle_gamma   116.332
_symmetry_Int_Tables_number   1
_cell_volume   373.160
_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
  Rb  Rb0  1  0.844  0.688  0.218  1.0
  Rb  Rb1  1  0.163  0.325  0.802  1.0
  Rb  Rb2  1  0.511  0.022  0.830  1.0
  Rb  Rb3  1  0.498  0.997  0.202  1.0
  Mg  Mg4  1  0.250  0.500  0.487  1.0
  W  W5  1  0.163  0.326  0.172  1.0
  W  W6  1  0.833  0.667  0.823  1.0
  O  O7  1  0.391  0.285  0.072  1.0
  O  O8  1  0.092  0.723  0.942  1.0
  O  O9  1  0.631  0.723  0.942  1.0
  O  O10  1  0.894  0.285  0.072  1.0
  O  O11  1  0.685  0.370  0.703  1.0
  O  O12  1  0.313  0.625  0.333  1.0
  O  O13  1  0.100  0.200  0.326  1.0
  O  O14  1  0.924  0.848  0.719  1.0
[/CIF]
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