The compound described by RbTb3F10 crystallizes in the cubic Fm-3m space group. Rb(1) is bonded to four equivalent F(2) and twelve equivalent F(1) atoms to form distorted edge-sharing RbF16 tetrahedra. Tb(1) is bonded in a 8-coordinate geometry to four equivalent F(1) and four equivalent F(2) atoms. There are two inequivalent F sites. In the first F site, F(1) is bonded in a bent 150 degrees geometry to two equivalent Rb(1) and two equivalent Tb(1) atoms. In the second F site, F(2) is bonded to one Rb(1) and three equivalent Tb(1) atoms to form a mixture of corner and edge-sharing FRbTb3 tetrahedra. is represented by the CIF card [CIF]
data_RbTb3F10
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.219
_cell_length_b   8.219
_cell_length_c   8.219
_cell_angle_alpha   60.000
_cell_angle_beta   60.000
_cell_angle_gamma   60.000
_symmetry_Int_Tables_number   1
_cell_volume   392.572
_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  0.250  0.250  0.250  1.0
  Rb  Rb1  1  0.750  0.750  0.750  1.0
  Tb  Tb2  1  0.760  0.240  0.240  1.0
  Tb  Tb3  1  0.240  0.760  0.760  1.0
  Tb  Tb4  1  0.240  0.760  0.240  1.0
  Tb  Tb5  1  0.760  0.240  0.760  1.0
  Tb  Tb6  1  0.240  0.240  0.760  1.0
  Tb  Tb7  1  0.760  0.760  0.240  1.0
  F  F8  1  0.831  0.500  0.500  1.0
  F  F9  1  0.169  0.500  0.500  1.0
  F  F10  1  0.500  0.831  0.169  1.0
  F  F11  1  0.500  0.169  0.831  1.0
  F  F12  1  0.500  0.831  0.500  1.0
  F  F13  1  0.169  0.500  0.831  1.0
  F  F14  1  0.500  0.169  0.500  1.0
  F  F15  1  0.831  0.500  0.169  1.0
  F  F16  1  0.500  0.500  0.831  1.0
  F  F17  1  0.500  0.500  0.169  1.0
  F  F18  1  0.169  0.831  0.500  1.0
  F  F19  1  0.831  0.169  0.500  1.0
  F  F20  1  0.111  0.111  0.111  1.0
  F  F21  1  0.889  0.889  0.889  1.0
  F  F22  1  0.111  0.111  0.668  1.0
  F  F23  1  0.111  0.668  0.111  1.0
  F  F24  1  0.889  0.889  0.332  1.0
  F  F25  1  0.889  0.332  0.889  1.0
  F  F26  1  0.668  0.111  0.111  1.0
  F  F27  1  0.332  0.889  0.889  1.0
[/CIF]
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The compound described by RbTb3F10 crystallizes in the cubic Fm-3m space group. Rb(1) is bonded to four equivalent F(2) and twelve equivalent F(1) atoms to form distorted edge-sharing RbF16 tetrahedra. Tb(1) is bonded in a 8-coordinate geometry to four equivalent F(1) and four equivalent F(2) atoms. There are two inequivalent F sites. In the first F site, F(1) is bonded in a bent 150 degrees geometry to two equivalent Rb(1) and two equivalent Tb(1) atoms. In the second F site, F(2) is bonded to one Rb(1) and three equivalent Tb(1) atoms to form a mixture of corner and edge-sharing FRbTb3 tetrahedra. is represented by the CIF card [CIF]
data_RbTb3F10
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.219
_cell_length_b   8.219
_cell_length_c   8.219
_cell_angle_alpha   60.000
_cell_angle_beta   60.000
_cell_angle_gamma   60.000
_symmetry_Int_Tables_number   1
_cell_volume   392.572
_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  0.250  0.250  0.250  1.0
  Rb  Rb1  1  0.750  0.750  0.750  1.0
  Tb  Tb2  1  0.760  0.240  0.240  1.0
  Tb  Tb3  1  0.240  0.760  0.760  1.0
  Tb  Tb4  1  0.240  0.760  0.240  1.0
  Tb  Tb5  1  0.760  0.240  0.760  1.0
  Tb  Tb6  1  0.240  0.240  0.760  1.0
  Tb  Tb7  1  0.760  0.760  0.240  1.0
  F  F8  1  0.831  0.500  0.500  1.0
  F  F9  1  0.169  0.500  0.500  1.0
  F  F10  1  0.500  0.831  0.169  1.0
  F  F11  1  0.500  0.169  0.831  1.0
  F  F12  1  0.500  0.831  0.500  1.0
  F  F13  1  0.169  0.500  0.831  1.0
  F  F14  1  0.500  0.169  0.500  1.0
  F  F15  1  0.831  0.500  0.169  1.0
  F  F16  1  0.500  0.500  0.831  1.0
  F  F17  1  0.500  0.500  0.169  1.0
  F  F18  1  0.169  0.831  0.500  1.0
  F  F19  1  0.831  0.169  0.500  1.0
  F  F20  1  0.111  0.111  0.111  1.0
  F  F21  1  0.889  0.889  0.889  1.0
  F  F22  1  0.111  0.111  0.668  1.0
  F  F23  1  0.111  0.668  0.111  1.0
  F  F24  1  0.889  0.889  0.332  1.0
  F  F25  1  0.889  0.332  0.889  1.0
  F  F26  1  0.668  0.111  0.111  1.0
  F  F27  1  0.332  0.889  0.889  1.0
[/CIF]
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