The compound described by Rb3TbCl6 crystallizes in the monoclinic C2/c space group. There are three inequivalent Rb sites. In the first Rb site, Rb(1) is bonded in a 7-coordinate geometry to one Cl(1), one Cl(2), one Cl(3), two equivalent Cl(4), and two equivalent Cl(5) atoms. In the second Rb site, Rb(2) is bonded in a 8-coordinate geometry to one Cl(2), one Cl(3), one Cl(4), one Cl(5), two equivalent Cl(1), and two equivalent Cl(6) atoms. In the third Rb site, Rb(3) is bonded in a 8-coordinate geometry to one Cl(1), one Cl(2), one Cl(4), one Cl(5), two equivalent Cl(3), and two equivalent Cl(6) atoms. There are two inequivalent Tb sites. In the first Tb site, Tb(1) is bonded in an octahedral geometry to two equivalent Cl(2), two equivalent Cl(4), and two equivalent Cl(5) atoms. In the second Tb site, Tb(2) is bonded in an octahedral geometry to two equivalent Cl(1), two equivalent Cl(3), and two equivalent Cl(6) atoms. There are six inequivalent Cl sites. In the first Cl site, Cl(1) is bonded in a 5-coordinate geometry to one Rb(1), one Rb(3), two equivalent Rb(2), and one Tb(2) atom. In the second Cl site, Cl(2) is bonded in a 4-coordinate geometry to one Rb(1), one Rb(2), one Rb(3), and one Tb(1) atom. In the third Cl site, Cl(3) is bonded in a 5-coordinate geometry to one Rb(1), one Rb(2), two equivalent Rb(3), and one Tb(2) atom. In the fourth Cl site, Cl(4) is bonded to one Rb(2), one Rb(3), two equivalent Rb(1), and one Tb(1) atom to form a mixture of distorted corner, face, and edge-sharing ClRb4Tb square pyramids. In the fifth Cl site, Cl(5) is bonded to one Rb(2), one Rb(3), two equivalent Rb(1), and one Tb(1) atom to form a mixture of distorted corner, face, and edge-sharing ClRb4Tb square pyramids. In the sixth Cl site, Cl(6) is bonded in a 5-coordinate geometry to two equivalent Rb(2), two equivalent Rb(3), and one Tb(2) atom. is represented by the CIF card [CIF]
data_Rb3TbCl6
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   13.509
_cell_length_b   13.509
_cell_length_c   12.822
_cell_angle_alpha   81.081
_cell_angle_beta   81.081
_cell_angle_gamma   34.246
_symmetry_Int_Tables_number   1
_cell_volume   1299.310
_cell_formula_units_Z   4
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  0.296  0.808  0.063  1.0
  Rb  Rb1  1  0.704  0.192  0.937  1.0
  Rb  Rb2  1  0.192  0.704  0.437  1.0
  Rb  Rb3  1  0.808  0.296  0.563  1.0
  Rb  Rb4  1  0.471  0.837  0.355  1.0
  Rb  Rb5  1  0.529  0.163  0.645  1.0
  Rb  Rb6  1  0.163  0.529  0.145  1.0
  Rb  Rb7  1  0.837  0.471  0.855  1.0
  Rb  Rb8  1  0.654  0.022  0.303  1.0
  Rb  Rb9  1  0.346  0.978  0.697  1.0
  Rb  Rb10  1  0.978  0.346  0.197  1.0
  Rb  Rb11  1  0.022  0.654  0.803  1.0
  Tb  Tb12  1  0.795  0.205  0.250  1.0
  Tb  Tb13  1  0.205  0.795  0.750  1.0
  Tb  Tb14  1  0.500  0.000  0.000  1.0
  Tb  Tb15  1  0.000  0.500  0.500  1.0
  Cl  Cl16  1  0.623  0.719  0.078  1.0
  Cl  Cl17  1  0.377  0.281  0.922  1.0
  Cl  Cl18  1  0.281  0.377  0.422  1.0
  Cl  Cl19  1  0.719  0.623  0.578  1.0
  Cl  Cl20  1  0.510  0.367  0.178  1.0
  Cl  Cl21  1  0.490  0.633  0.822  1.0
  Cl  Cl22  1  0.633  0.490  0.322  1.0
  Cl  Cl23  1  0.367  0.510  0.678  1.0
  Cl  Cl24  1  0.788  0.860  0.034  1.0
  Cl  Cl25  1  0.212  0.140  0.966  1.0
  Cl  Cl26  1  0.140  0.212  0.466  1.0
  Cl  Cl27  1  0.860  0.788  0.534  1.0
  Cl  Cl28  1  0.893  0.984  0.704  1.0
  Cl  Cl29  1  0.107  0.016  0.296  1.0
  Cl  Cl30  1  0.016  0.107  0.796  1.0
  Cl  Cl31  1  0.984  0.893  0.204  1.0
  Cl  Cl32  1  0.730  0.157  0.439  1.0
  Cl  Cl33  1  0.270  0.843  0.561  1.0
  Cl  Cl34  1  0.843  0.270  0.061  1.0
  Cl  Cl35  1  0.157  0.730  0.939  1.0
  Cl  Cl36  1  0.364  0.137  0.190  1.0
  Cl  Cl37  1  0.636  0.863  0.810  1.0
  Cl  Cl38  1  0.863  0.636  0.310  1.0
  Cl  Cl39  1  0.137  0.364  0.690  1.0
[/CIF]
.
The compound described by Rb3TbCl6 crystallizes in the monoclinic C2/c space group. There are three inequivalent Rb sites. In the first Rb site, Rb(1) is bonded in a 7-coordinate geometry to one Cl(1), one Cl(2), one Cl(3), two equivalent Cl(4), and two equivalent Cl(5) atoms. In the second Rb site, Rb(2) is bonded in a 8-coordinate geometry to one Cl(2), one Cl(3), one Cl(4), one Cl(5), two equivalent Cl(1), and two equivalent Cl(6) atoms. In the third Rb site, Rb(3) is bonded in a 8-coordinate geometry to one Cl(1), one Cl(2), one Cl(4), one Cl(5), two equivalent Cl(3), and two equivalent Cl(6) atoms. There are two inequivalent Tb sites. In the first Tb site, Tb(1) is bonded in an octahedral geometry to two equivalent Cl(2), two equivalent Cl(4), and two equivalent Cl(5) atoms. In the second Tb site, Tb(2) is bonded in an octahedral geometry to two equivalent Cl(1), two equivalent Cl(3), and two equivalent Cl(6) atoms. There are six inequivalent Cl sites. In the first Cl site, Cl(1) is bonded in a 5-coordinate geometry to one Rb(1), one Rb(3), two equivalent Rb(2), and one Tb(2) atom. In the second Cl site, Cl(2) is bonded in a 4-coordinate geometry to one Rb(1), one Rb(2), one Rb(3), and one Tb(1) atom. In the third Cl site, Cl(3) is bonded in a 5-coordinate geometry to one Rb(1), one Rb(2), two equivalent Rb(3), and one Tb(2) atom. In the fourth Cl site, Cl(4) is bonded to one Rb(2), one Rb(3), two equivalent Rb(1), and one Tb(1) atom to form a mixture of distorted corner, face, and edge-sharing ClRb4Tb square pyramids. In the fifth Cl site, Cl(5) is bonded to one Rb(2), one Rb(3), two equivalent Rb(1), and one Tb(1) atom to form a mixture of distorted corner, face, and edge-sharing ClRb4Tb square pyramids. In the sixth Cl site, Cl(6) is bonded in a 5-coordinate geometry to two equivalent Rb(2), two equivalent Rb(3), and one Tb(2) atom. is represented by the CIF card [CIF]
data_Rb3TbCl6
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   13.509
_cell_length_b   13.509
_cell_length_c   12.822
_cell_angle_alpha   81.081
_cell_angle_beta   81.081
_cell_angle_gamma   34.246
_symmetry_Int_Tables_number   1
_cell_volume   1299.310
_cell_formula_units_Z   4
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  0.296  0.808  0.063  1.0
  Rb  Rb1  1  0.704  0.192  0.937  1.0
  Rb  Rb2  1  0.192  0.704  0.437  1.0
  Rb  Rb3  1  0.808  0.296  0.563  1.0
  Rb  Rb4  1  0.471  0.837  0.355  1.0
  Rb  Rb5  1  0.529  0.163  0.645  1.0
  Rb  Rb6  1  0.163  0.529  0.145  1.0
  Rb  Rb7  1  0.837  0.471  0.855  1.0
  Rb  Rb8  1  0.654  0.022  0.303  1.0
  Rb  Rb9  1  0.346  0.978  0.697  1.0
  Rb  Rb10  1  0.978  0.346  0.197  1.0
  Rb  Rb11  1  0.022  0.654  0.803  1.0
  Tb  Tb12  1  0.795  0.205  0.250  1.0
  Tb  Tb13  1  0.205  0.795  0.750  1.0
  Tb  Tb14  1  0.500  0.000  0.000  1.0
  Tb  Tb15  1  0.000  0.500  0.500  1.0
  Cl  Cl16  1  0.623  0.719  0.078  1.0
  Cl  Cl17  1  0.377  0.281  0.922  1.0
  Cl  Cl18  1  0.281  0.377  0.422  1.0
  Cl  Cl19  1  0.719  0.623  0.578  1.0
  Cl  Cl20  1  0.510  0.367  0.178  1.0
  Cl  Cl21  1  0.490  0.633  0.822  1.0
  Cl  Cl22  1  0.633  0.490  0.322  1.0
  Cl  Cl23  1  0.367  0.510  0.678  1.0
  Cl  Cl24  1  0.788  0.860  0.034  1.0
  Cl  Cl25  1  0.212  0.140  0.966  1.0
  Cl  Cl26  1  0.140  0.212  0.466  1.0
  Cl  Cl27  1  0.860  0.788  0.534  1.0
  Cl  Cl28  1  0.893  0.984  0.704  1.0
  Cl  Cl29  1  0.107  0.016  0.296  1.0
  Cl  Cl30  1  0.016  0.107  0.796  1.0
  Cl  Cl31  1  0.984  0.893  0.204  1.0
  Cl  Cl32  1  0.730  0.157  0.439  1.0
  Cl  Cl33  1  0.270  0.843  0.561  1.0
  Cl  Cl34  1  0.843  0.270  0.061  1.0
  Cl  Cl35  1  0.157  0.730  0.939  1.0
  Cl  Cl36  1  0.364  0.137  0.190  1.0
  Cl  Cl37  1  0.636  0.863  0.810  1.0
  Cl  Cl38  1  0.863  0.636  0.310  1.0
  Cl  Cl39  1  0.137  0.364  0.690  1.0
[/CIF]
.