The structure described by Rb2MgCr2O14 crystallizes in the monoclinic P2_1/c space group. Rb(1) is bonded in a 7-coordinate geometry to one O(1), one O(2), one O(3), one O(4), one O(5), and two equivalent O(7) atoms. Mg(1) is bonded in an octahedral geometry to two equivalent O(3), two equivalent O(5), and two equivalent O(6) atoms. Cr(1) is bonded in a tetrahedral geometry to one O(1), one O(2), one O(4), and one O(7) atom. There are seven inequivalent O sites. In the first O site, O(7) is bonded in a distorted single-bond geometry to two equivalent Rb(1) and one Cr(1) atom. In the second O site, O(1) is bonded in a distorted bent 120 degrees geometry to one Rb(1) and one Cr(1) atom. In the third O site, O(2) is bonded in a single-bond geometry to one Rb(1) and one Cr(1) atom. In the fourth O site, O(3) is bonded in a distorted trigonal non-coplanar geometry to one Rb(1), one Mg(1), and one O(5) atom. In the fifth O site, O(4) is bonded in a distorted single-bond geometry to one Rb(1), one Cr(1), and one O(6) atom. In the sixth O site, O(5) is bonded in a 3-coordinate geometry to one Rb(1), one Mg(1), and one O(3) atom. In the seventh O site, O(6) is bonded in a distorted single-bond geometry to one Mg(1) and one O(4) atom. is represented by the CIF card [CIF]
data_Rb2MgCr2O14
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.596
_cell_length_b   8.009
_cell_length_c   14.160
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   101.182
_symmetry_Int_Tables_number   1
_cell_volume   733.866
_cell_formula_units_Z   2
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  0.841  0.636  0.159  1.0
  Rb  Rb1  1  0.159  0.364  0.841  1.0
  Rb  Rb2  1  0.159  0.864  0.659  1.0
  Rb  Rb3  1  0.841  0.136  0.341  1.0
  Mg  Mg4  1  0.500  0.000  0.000  1.0
  Mg  Mg5  1  0.500  0.500  0.500  1.0
  Cr  Cr6  1  0.751  0.606  0.861  1.0
  Cr  Cr7  1  0.249  0.394  0.139  1.0
  Cr  Cr8  1  0.249  0.894  0.361  1.0
  Cr  Cr9  1  0.751  0.106  0.639  1.0
  O  O10  1  0.525  0.619  0.819  1.0
  O  O11  1  0.475  0.381  0.181  1.0
  O  O12  1  0.475  0.881  0.319  1.0
  O  O13  1  0.525  0.119  0.681  1.0
  O  O14  1  0.743  0.939  0.571  1.0
  O  O15  1  0.257  0.061  0.429  1.0
  O  O16  1  0.257  0.561  0.071  1.0
  O  O17  1  0.743  0.439  0.929  1.0
  O  O18  1  0.327  0.928  0.866  1.0
  O  O19  1  0.673  0.072  0.134  1.0
  O  O20  1  0.673  0.572  0.366  1.0
  O  O21  1  0.327  0.428  0.634  1.0
  O  O22  1  0.841  0.798  0.939  1.0
  O  O23  1  0.159  0.202  0.061  1.0
  O  O24  1  0.159  0.702  0.439  1.0
  O  O25  1  0.841  0.298  0.561  1.0
  O  O26  1  0.377  0.593  0.619  1.0
  O  O27  1  0.623  0.407  0.381  1.0
  O  O28  1  0.623  0.907  0.119  1.0
  O  O29  1  0.377  0.093  0.881  1.0
  O  O30  1  0.741  0.930  0.936  1.0
  O  O31  1  0.259  0.070  0.064  1.0
  O  O32  1  0.259  0.570  0.436  1.0
  O  O33  1  0.741  0.430  0.564  1.0
  O  O34  1  0.925  0.610  0.778  1.0
  O  O35  1  0.075  0.390  0.222  1.0
  O  O36  1  0.075  0.890  0.278  1.0
  O  O37  1  0.925  0.110  0.722  1.0
[/CIF]
.
The structure described by Rb2MgCr2O14 crystallizes in the monoclinic P2_1/c space group. Rb(1) is bonded in a 7-coordinate geometry to one O(1), one O(2), one O(3), one O(4), one O(5), and two equivalent O(7) atoms. Mg(1) is bonded in an octahedral geometry to two equivalent O(3), two equivalent O(5), and two equivalent O(6) atoms. Cr(1) is bonded in a tetrahedral geometry to one O(1), one O(2), one O(4), and one O(7) atom. There are seven inequivalent O sites. In the first O site, O(7) is bonded in a distorted single-bond geometry to two equivalent Rb(1) and one Cr(1) atom. In the second O site, O(1) is bonded in a distorted bent 120 degrees geometry to one Rb(1) and one Cr(1) atom. In the third O site, O(2) is bonded in a single-bond geometry to one Rb(1) and one Cr(1) atom. In the fourth O site, O(3) is bonded in a distorted trigonal non-coplanar geometry to one Rb(1), one Mg(1), and one O(5) atom. In the fifth O site, O(4) is bonded in a distorted single-bond geometry to one Rb(1), one Cr(1), and one O(6) atom. In the sixth O site, O(5) is bonded in a 3-coordinate geometry to one Rb(1), one Mg(1), and one O(3) atom. In the seventh O site, O(6) is bonded in a distorted single-bond geometry to one Mg(1) and one O(4) atom. is represented by the CIF card [CIF]
data_Rb2MgCr2O14
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.596
_cell_length_b   8.009
_cell_length_c   14.160
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   101.182
_symmetry_Int_Tables_number   1
_cell_volume   733.866
_cell_formula_units_Z   2
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  0.841  0.636  0.159  1.0
  Rb  Rb1  1  0.159  0.364  0.841  1.0
  Rb  Rb2  1  0.159  0.864  0.659  1.0
  Rb  Rb3  1  0.841  0.136  0.341  1.0
  Mg  Mg4  1  0.500  0.000  0.000  1.0
  Mg  Mg5  1  0.500  0.500  0.500  1.0
  Cr  Cr6  1  0.751  0.606  0.861  1.0
  Cr  Cr7  1  0.249  0.394  0.139  1.0
  Cr  Cr8  1  0.249  0.894  0.361  1.0
  Cr  Cr9  1  0.751  0.106  0.639  1.0
  O  O10  1  0.525  0.619  0.819  1.0
  O  O11  1  0.475  0.381  0.181  1.0
  O  O12  1  0.475  0.881  0.319  1.0
  O  O13  1  0.525  0.119  0.681  1.0
  O  O14  1  0.743  0.939  0.571  1.0
  O  O15  1  0.257  0.061  0.429  1.0
  O  O16  1  0.257  0.561  0.071  1.0
  O  O17  1  0.743  0.439  0.929  1.0
  O  O18  1  0.327  0.928  0.866  1.0
  O  O19  1  0.673  0.072  0.134  1.0
  O  O20  1  0.673  0.572  0.366  1.0
  O  O21  1  0.327  0.428  0.634  1.0
  O  O22  1  0.841  0.798  0.939  1.0
  O  O23  1  0.159  0.202  0.061  1.0
  O  O24  1  0.159  0.702  0.439  1.0
  O  O25  1  0.841  0.298  0.561  1.0
  O  O26  1  0.377  0.593  0.619  1.0
  O  O27  1  0.623  0.407  0.381  1.0
  O  O28  1  0.623  0.907  0.119  1.0
  O  O29  1  0.377  0.093  0.881  1.0
  O  O30  1  0.741  0.930  0.936  1.0
  O  O31  1  0.259  0.070  0.064  1.0
  O  O32  1  0.259  0.570  0.436  1.0
  O  O33  1  0.741  0.430  0.564  1.0
  O  O34  1  0.925  0.610  0.778  1.0
  O  O35  1  0.075  0.390  0.222  1.0
  O  O36  1  0.075  0.890  0.278  1.0
  O  O37  1  0.925  0.110  0.722  1.0
[/CIF]
.