The crystal structure described by K2TbF5 crystallizes in the orthorhombic Pnma space group. K(1) is bonded in a 8-coordinate geometry to two equivalent F(1), two equivalent F(2), two equivalent F(3), and two equivalent F(4) atoms. Tb(1) is bonded to one F(1), one F(2), one F(3), and four equivalent F(4) atoms to form distorted edge-sharing TbF7 pentagonal bipyramids. There are four inequivalent F sites. In the first F site, F(1) is bonded to four equivalent K(1) and one Tb(1) atom to form distorted FK4Tb trigonal bipyramids that share corners with four equivalent F(4)K2Tb2 tetrahedra, corners with four equivalent F(1)K4Tb trigonal bipyramids, corners with four equivalent F(3)K4Tb trigonal bipyramids, edges with four equivalent F(4)K2Tb2 tetrahedra,  an edgeedge with one F(3)K4Tb trigonal bipyramid, and  a faceface with one F(3)K4Tb trigonal bipyramid. In the second F site, F(2) is bonded in a 5-coordinate geometry to four equivalent K(1) and one Tb(1) atom. In the third F site, F(3) is bonded to four equivalent K(1) and one Tb(1) atom to form distorted FK4Tb trigonal bipyramids that share corners with eight equivalent F(4)K2Tb2 tetrahedra, corners with four equivalent F(1)K4Tb trigonal bipyramids, edges with two equivalent F(4)K2Tb2 tetrahedra,  an edgeedge with one F(1)K4Tb trigonal bipyramid, edges with two equivalent F(3)K4Tb trigonal bipyramids, and  a faceface with one F(1)K4Tb trigonal bipyramid. In the fourth F site, F(4) is bonded to two equivalent K(1) and two equivalent Tb(1) atoms to form distorted FK2Tb2 tetrahedra that share corners with six equivalent F(4)K2Tb2 tetrahedra, corners with two equivalent F(1)K4Tb trigonal bipyramids, corners with four equivalent F(3)K4Tb trigonal bipyramids,  an edgeedge with one F(4)K2Tb2 tetrahedra,  an edgeedge with one F(3)K4Tb trigonal bipyramid, and edges with two equivalent F(1)K4Tb trigonal bipyramids. is represented by the Crystallographic Information File (CIF) [CIF]
data_K2TbF5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.556
_cell_length_b   7.264
_cell_length_c   10.719
_cell_angle_alpha   90.000
_cell_angle_beta   89.997
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   510.442
_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
  K  K0  1  0.534  0.497  0.829  1.0
  K  K1  1  0.466  0.503  0.171  1.0
  K  K2  1  0.034  0.503  0.671  1.0
  K  K3  1  0.466  0.997  0.171  1.0
  K  K4  1  0.966  0.497  0.329  1.0
  K  K5  1  0.534  0.003  0.829  1.0
  K  K6  1  0.966  0.003  0.329  1.0
  K  K7  1  0.034  0.997  0.671  1.0
  Tb  Tb8  1  0.566  0.750  0.503  1.0
  Tb  Tb9  1  0.434  0.250  0.497  1.0
  Tb  Tb10  1  0.066  0.250  0.997  1.0
  Tb  Tb11  1  0.934  0.750  0.003  1.0
  F  F12  1  0.836  0.750  0.805  1.0
  F  F13  1  0.164  0.250  0.195  1.0
  F  F14  1  0.336  0.250  0.695  1.0
  F  F15  1  0.664  0.750  0.305  1.0
  F  F16  1  0.367  0.750  0.668  1.0
  F  F17  1  0.633  0.250  0.332  1.0
  F  F18  1  0.867  0.250  0.832  1.0
  F  F19  1  0.133  0.750  0.168  1.0
  F  F20  1  0.900  0.750  0.512  1.0
  F  F21  1  0.100  0.250  0.488  1.0
  F  F22  1  0.400  0.250  0.989  1.0
  F  F23  1  0.600  0.750  0.011  1.0
  F  F24  1  0.648  0.035  0.578  1.0
  F  F25  1  0.352  0.965  0.422  1.0
  F  F26  1  0.148  0.965  0.922  1.0
  F  F27  1  0.352  0.535  0.422  1.0
  F  F28  1  0.852  0.035  0.078  1.0
  F  F29  1  0.648  0.465  0.578  1.0
  F  F30  1  0.852  0.465  0.078  1.0
  F  F31  1  0.148  0.535  0.922  1.0
[/CIF]
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The crystal structure described by K2TbF5 crystallizes in the orthorhombic Pnma space group. K(1) is bonded in a 8-coordinate geometry to two equivalent F(1), two equivalent F(2), two equivalent F(3), and two equivalent F(4) atoms. Tb(1) is bonded to one F(1), one F(2), one F(3), and four equivalent F(4) atoms to form distorted edge-sharing TbF7 pentagonal bipyramids. There are four inequivalent F sites. In the first F site, F(1) is bonded to four equivalent K(1) and one Tb(1) atom to form distorted FK4Tb trigonal bipyramids that share corners with four equivalent F(4)K2Tb2 tetrahedra, corners with four equivalent F(1)K4Tb trigonal bipyramids, corners with four equivalent F(3)K4Tb trigonal bipyramids, edges with four equivalent F(4)K2Tb2 tetrahedra,  an edgeedge with one F(3)K4Tb trigonal bipyramid, and  a faceface with one F(3)K4Tb trigonal bipyramid. In the second F site, F(2) is bonded in a 5-coordinate geometry to four equivalent K(1) and one Tb(1) atom. In the third F site, F(3) is bonded to four equivalent K(1) and one Tb(1) atom to form distorted FK4Tb trigonal bipyramids that share corners with eight equivalent F(4)K2Tb2 tetrahedra, corners with four equivalent F(1)K4Tb trigonal bipyramids, edges with two equivalent F(4)K2Tb2 tetrahedra,  an edgeedge with one F(1)K4Tb trigonal bipyramid, edges with two equivalent F(3)K4Tb trigonal bipyramids, and  a faceface with one F(1)K4Tb trigonal bipyramid. In the fourth F site, F(4) is bonded to two equivalent K(1) and two equivalent Tb(1) atoms to form distorted FK2Tb2 tetrahedra that share corners with six equivalent F(4)K2Tb2 tetrahedra, corners with two equivalent F(1)K4Tb trigonal bipyramids, corners with four equivalent F(3)K4Tb trigonal bipyramids,  an edgeedge with one F(4)K2Tb2 tetrahedra,  an edgeedge with one F(3)K4Tb trigonal bipyramid, and edges with two equivalent F(1)K4Tb trigonal bipyramids. is represented by the Crystallographic Information File (CIF) [CIF]
data_K2TbF5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.556
_cell_length_b   7.264
_cell_length_c   10.719
_cell_angle_alpha   90.000
_cell_angle_beta   89.997
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   510.442
_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
  K  K0  1  0.534  0.497  0.829  1.0
  K  K1  1  0.466  0.503  0.171  1.0
  K  K2  1  0.034  0.503  0.671  1.0
  K  K3  1  0.466  0.997  0.171  1.0
  K  K4  1  0.966  0.497  0.329  1.0
  K  K5  1  0.534  0.003  0.829  1.0
  K  K6  1  0.966  0.003  0.329  1.0
  K  K7  1  0.034  0.997  0.671  1.0
  Tb  Tb8  1  0.566  0.750  0.503  1.0
  Tb  Tb9  1  0.434  0.250  0.497  1.0
  Tb  Tb10  1  0.066  0.250  0.997  1.0
  Tb  Tb11  1  0.934  0.750  0.003  1.0
  F  F12  1  0.836  0.750  0.805  1.0
  F  F13  1  0.164  0.250  0.195  1.0
  F  F14  1  0.336  0.250  0.695  1.0
  F  F15  1  0.664  0.750  0.305  1.0
  F  F16  1  0.367  0.750  0.668  1.0
  F  F17  1  0.633  0.250  0.332  1.0
  F  F18  1  0.867  0.250  0.832  1.0
  F  F19  1  0.133  0.750  0.168  1.0
  F  F20  1  0.900  0.750  0.512  1.0
  F  F21  1  0.100  0.250  0.488  1.0
  F  F22  1  0.400  0.250  0.989  1.0
  F  F23  1  0.600  0.750  0.011  1.0
  F  F24  1  0.648  0.035  0.578  1.0
  F  F25  1  0.352  0.965  0.422  1.0
  F  F26  1  0.148  0.965  0.922  1.0
  F  F27  1  0.352  0.535  0.422  1.0
  F  F28  1  0.852  0.035  0.078  1.0
  F  F29  1  0.648  0.465  0.578  1.0
  F  F30  1  0.852  0.465  0.078  1.0
  F  F31  1  0.148  0.535  0.922  1.0
[/CIF]
.