The compound described by KTm2F7 crystallizes in the monoclinic C2/m space group. There are two inequivalent K sites. In the first K site, K(1) is bonded in a 10-coordinate geometry to one F(3), one F(4), one F(5), one F(8), two equivalent F(9), and four equivalent F(2) atoms. In the second K site, K(2) is bonded in a 5-coordinate geometry to one F(10), one F(4), one F(5), two equivalent F(1), and two equivalent F(9) atoms. There are three inequivalent Tm sites. In the first Tm site, Tm(1) is bonded in a body-centered cubic geometry to two equivalent F(1), two equivalent F(2), two equivalent F(5), and two equivalent F(8) atoms. In the second Tm site, Tm(2) is bonded in a 8-coordinate geometry to one F(10), one F(8), two equivalent F(1), two equivalent F(6), and two equivalent F(9) atoms. In the third Tm site, Tm(3) is bonded in a 8-coordinate geometry to one F(1), one F(10), one F(2), one F(3), one F(4), one F(6), one F(7), and one F(9) atom. There are ten inequivalent F sites. In the first F site, F(7) is bonded in a distorted bent 150 degrees geometry to two equivalent Tm(3) atoms. In the second F site, F(8) is bonded to one K(1), one Tm(2), and two equivalent Tm(1) atoms to form distorted FKTm3 tetrahedra that share  a cornercorner with one F(4)K2Tm2 tetrahedra,  a cornercorner with one F(10)KTm3 tetrahedra, corners with two equivalent F(1)KTm3 tetrahedra, corners with four equivalent F(2)K2Tm2 tetrahedra, corners with five equivalent F(5)K2Tm2 tetrahedra,  an edgeedge with one F(8)KTm3 tetrahedra, edges with two equivalent F(2)K2Tm2 tetrahedra, and edges with two equivalent F(1)KTm3 tetrahedra. In the third F site, F(9) is bonded in a 4-coordinate geometry to one K(1), one K(2), one Tm(2), and one Tm(3) atom. In the fourth F site, F(10) is bonded to one K(2), one Tm(2), and two equivalent Tm(3) atoms to form FKTm3 tetrahedra that share  a cornercorner with one F(4)K2Tm2 tetrahedra,  a cornercorner with one F(5)K2Tm2 tetrahedra,  a cornercorner with one F(8)KTm3 tetrahedra, corners with two equivalent F(2)K2Tm2 tetrahedra, corners with two equivalent F(1)KTm3 tetrahedra,  an edgeedge with one F(4)K2Tm2 tetrahedra, and edges with two equivalent F(1)KTm3 tetrahedra. In the fifth F site, F(1) is bonded to one K(2), one Tm(1), one Tm(2), and one Tm(3) atom to form FKTm3 tetrahedra that share  a cornercorner with one F(2)K2Tm2 tetrahedra,  a cornercorner with one F(5)K2Tm2 tetrahedra,  a cornercorner with one F(10)KTm3 tetrahedra,  a cornercorner with one F(8)KTm3 tetrahedra, corners with two equivalent F(4)K2Tm2 tetrahedra, corners with three equivalent F(1)KTm3 tetrahedra,  an edgeedge with one F(2)K2Tm2 tetrahedra,  an edgeedge with one F(5)K2Tm2 tetrahedra,  an edgeedge with one F(10)KTm3 tetrahedra, and  an edgeedge with one F(8)KTm3 tetrahedra. In the sixth F site, F(2) is bonded to two equivalent K(1), one Tm(1), and one Tm(3) atom to form distorted FK2Tm2 tetrahedra that share  a cornercorner with one F(4)K2Tm2 tetrahedra,  a cornercorner with one F(1)KTm3 tetrahedra,  a cornercorner with one F(10)KTm3 tetrahedra, corners with two equivalent F(5)K2Tm2 tetrahedra, corners with two equivalent F(8)KTm3 tetrahedra, corners with five equivalent F(2)K2Tm2 tetrahedra,  an edgeedge with one F(2)K2Tm2 tetrahedra,  an edgeedge with one F(4)K2Tm2 tetrahedra,  an edgeedge with one F(5)K2Tm2 tetrahedra,  an edgeedge with one F(1)KTm3 tetrahedra, and  an edgeedge with one F(8)KTm3 tetrahedra. In the seventh F site, F(3) is bonded in a distorted bent 150 degrees geometry to one K(1) and two equivalent Tm(3) atoms. In the eighth F site, F(4) is bonded to one K(1), one K(2), and two equivalent Tm(3) atoms to form FK2Tm2 tetrahedra that share  a cornercorner with one F(10)KTm3 tetrahedra,  a cornercorner with one F(8)KTm3 tetrahedra, corners with two equivalent F(2)K2Tm2 tetrahedra, corners with four equivalent F(1)KTm3 tetrahedra,  an edgeedge with one F(5)K2Tm2 tetrahedra,  an edgeedge with one F(10)KTm3 tetrahedra, and edges with two equivalent F(2)K2Tm2 tetrahedra. In the ninth F site, F(5) is bonded to one K(1), one K(2), and two equivalent Tm(1) atoms to form FK2Tm2 tetrahedra that share  a cornercorner with one F(10)KTm3 tetrahedra, corners with two equivalent F(1)KTm3 tetrahedra, corners with four equivalent F(2)K2Tm2 tetrahedra, corners with five equivalent F(8)KTm3 tetrahedra,  an edgeedge with one F(4)K2Tm2 tetrahedra,  an edgeedge with one F(5)K2Tm2 tetrahedra, edges with two equivalent F(2)K2Tm2 tetrahedra, and edges with two equivalent F(1)KTm3 tetrahedra. In the tenth F site, F(6) is bonded in a distorted bent 150 degrees geometry to one Tm(2) and one Tm(3) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_KTm2F7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.053
_cell_length_b   8.053
_cell_length_c   11.717
_cell_angle_alpha   59.793
_cell_angle_beta   59.793
_cell_angle_gamma   58.344
_symmetry_Int_Tables_number   1
_cell_volume   528.665
_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  0.763  0.763  0.480  1.0
  K  K1  1  0.267  0.267  0.152  1.0
  K  K2  1  0.733  0.733  0.848  1.0
  K  K3  1  0.237  0.237  0.520  1.0
  Tm  Tm4  1  0.241  0.759  0.500  1.0
  Tm  Tm5  1  0.759  0.241  0.500  1.0
  Tm  Tm6  1  0.741  0.741  0.179  1.0
  Tm  Tm7  1  0.259  0.259  0.821  1.0
  Tm  Tm8  1  0.264  0.738  0.819  1.0
  Tm  Tm9  1  0.738  0.264  0.819  1.0
  Tm  Tm10  1  0.262  0.736  0.181  1.0
  Tm  Tm11  1  0.736  0.262  0.181  1.0
  F  F12  1  0.381  0.855  0.263  1.0
  F  F13  1  0.855  0.381  0.263  1.0
  F  F14  1  0.366  0.835  0.585  1.0
  F  F15  1  0.835  0.366  0.585  1.0
  F  F16  1  0.996  0.996  0.233  1.0
  F  F17  1  0.603  0.603  0.751  1.0
  F  F18  1  0.895  0.895  0.574  1.0
  F  F19  1  0.004  0.669  0.001  1.0
  F  F20  1  0.669  0.004  0.001  1.0
  F  F21  1  0.397  0.397  0.249  1.0
  F  F22  1  0.996  0.331  0.999  1.0
  F  F23  1  0.331  0.996  0.999  1.0
  F  F24  1  0.145  0.619  0.737  1.0
  F  F25  1  0.619  0.145  0.737  1.0
  F  F26  1  0.323  0.677  0.000  1.0
  F  F27  1  0.677  0.323  0.000  1.0
  F  F28  1  0.004  0.004  0.767  1.0
  F  F29  1  0.605  0.605  0.412  1.0
  F  F30  1  0.999  0.656  0.239  1.0
  F  F31  1  0.656  0.999  0.239  1.0
  F  F32  1  0.001  0.344  0.761  1.0
  F  F33  1  0.344  0.001  0.761  1.0
  F  F34  1  0.387  0.387  0.881  1.0
  F  F35  1  0.105  0.105  0.426  1.0
  F  F36  1  0.395  0.395  0.588  1.0
  F  F37  1  0.165  0.634  0.415  1.0
  F  F38  1  0.634  0.165  0.415  1.0
  F  F39  1  0.613  0.613  0.119  1.0
[/CIF]
.
The compound described by KTm2F7 crystallizes in the monoclinic C2/m space group. There are two inequivalent K sites. In the first K site, K(1) is bonded in a 10-coordinate geometry to one F(3), one F(4), one F(5), one F(8), two equivalent F(9), and four equivalent F(2) atoms. In the second K site, K(2) is bonded in a 5-coordinate geometry to one F(10), one F(4), one F(5), two equivalent F(1), and two equivalent F(9) atoms. There are three inequivalent Tm sites. In the first Tm site, Tm(1) is bonded in a body-centered cubic geometry to two equivalent F(1), two equivalent F(2), two equivalent F(5), and two equivalent F(8) atoms. In the second Tm site, Tm(2) is bonded in a 8-coordinate geometry to one F(10), one F(8), two equivalent F(1), two equivalent F(6), and two equivalent F(9) atoms. In the third Tm site, Tm(3) is bonded in a 8-coordinate geometry to one F(1), one F(10), one F(2), one F(3), one F(4), one F(6), one F(7), and one F(9) atom. There are ten inequivalent F sites. In the first F site, F(7) is bonded in a distorted bent 150 degrees geometry to two equivalent Tm(3) atoms. In the second F site, F(8) is bonded to one K(1), one Tm(2), and two equivalent Tm(1) atoms to form distorted FKTm3 tetrahedra that share  a cornercorner with one F(4)K2Tm2 tetrahedra,  a cornercorner with one F(10)KTm3 tetrahedra, corners with two equivalent F(1)KTm3 tetrahedra, corners with four equivalent F(2)K2Tm2 tetrahedra, corners with five equivalent F(5)K2Tm2 tetrahedra,  an edgeedge with one F(8)KTm3 tetrahedra, edges with two equivalent F(2)K2Tm2 tetrahedra, and edges with two equivalent F(1)KTm3 tetrahedra. In the third F site, F(9) is bonded in a 4-coordinate geometry to one K(1), one K(2), one Tm(2), and one Tm(3) atom. In the fourth F site, F(10) is bonded to one K(2), one Tm(2), and two equivalent Tm(3) atoms to form FKTm3 tetrahedra that share  a cornercorner with one F(4)K2Tm2 tetrahedra,  a cornercorner with one F(5)K2Tm2 tetrahedra,  a cornercorner with one F(8)KTm3 tetrahedra, corners with two equivalent F(2)K2Tm2 tetrahedra, corners with two equivalent F(1)KTm3 tetrahedra,  an edgeedge with one F(4)K2Tm2 tetrahedra, and edges with two equivalent F(1)KTm3 tetrahedra. In the fifth F site, F(1) is bonded to one K(2), one Tm(1), one Tm(2), and one Tm(3) atom to form FKTm3 tetrahedra that share  a cornercorner with one F(2)K2Tm2 tetrahedra,  a cornercorner with one F(5)K2Tm2 tetrahedra,  a cornercorner with one F(10)KTm3 tetrahedra,  a cornercorner with one F(8)KTm3 tetrahedra, corners with two equivalent F(4)K2Tm2 tetrahedra, corners with three equivalent F(1)KTm3 tetrahedra,  an edgeedge with one F(2)K2Tm2 tetrahedra,  an edgeedge with one F(5)K2Tm2 tetrahedra,  an edgeedge with one F(10)KTm3 tetrahedra, and  an edgeedge with one F(8)KTm3 tetrahedra. In the sixth F site, F(2) is bonded to two equivalent K(1), one Tm(1), and one Tm(3) atom to form distorted FK2Tm2 tetrahedra that share  a cornercorner with one F(4)K2Tm2 tetrahedra,  a cornercorner with one F(1)KTm3 tetrahedra,  a cornercorner with one F(10)KTm3 tetrahedra, corners with two equivalent F(5)K2Tm2 tetrahedra, corners with two equivalent F(8)KTm3 tetrahedra, corners with five equivalent F(2)K2Tm2 tetrahedra,  an edgeedge with one F(2)K2Tm2 tetrahedra,  an edgeedge with one F(4)K2Tm2 tetrahedra,  an edgeedge with one F(5)K2Tm2 tetrahedra,  an edgeedge with one F(1)KTm3 tetrahedra, and  an edgeedge with one F(8)KTm3 tetrahedra. In the seventh F site, F(3) is bonded in a distorted bent 150 degrees geometry to one K(1) and two equivalent Tm(3) atoms. In the eighth F site, F(4) is bonded to one K(1), one K(2), and two equivalent Tm(3) atoms to form FK2Tm2 tetrahedra that share  a cornercorner with one F(10)KTm3 tetrahedra,  a cornercorner with one F(8)KTm3 tetrahedra, corners with two equivalent F(2)K2Tm2 tetrahedra, corners with four equivalent F(1)KTm3 tetrahedra,  an edgeedge with one F(5)K2Tm2 tetrahedra,  an edgeedge with one F(10)KTm3 tetrahedra, and edges with two equivalent F(2)K2Tm2 tetrahedra. In the ninth F site, F(5) is bonded to one K(1), one K(2), and two equivalent Tm(1) atoms to form FK2Tm2 tetrahedra that share  a cornercorner with one F(10)KTm3 tetrahedra, corners with two equivalent F(1)KTm3 tetrahedra, corners with four equivalent F(2)K2Tm2 tetrahedra, corners with five equivalent F(8)KTm3 tetrahedra,  an edgeedge with one F(4)K2Tm2 tetrahedra,  an edgeedge with one F(5)K2Tm2 tetrahedra, edges with two equivalent F(2)K2Tm2 tetrahedra, and edges with two equivalent F(1)KTm3 tetrahedra. In the tenth F site, F(6) is bonded in a distorted bent 150 degrees geometry to one Tm(2) and one Tm(3) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_KTm2F7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.053
_cell_length_b   8.053
_cell_length_c   11.717
_cell_angle_alpha   59.793
_cell_angle_beta   59.793
_cell_angle_gamma   58.344
_symmetry_Int_Tables_number   1
_cell_volume   528.665
_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  0.763  0.763  0.480  1.0
  K  K1  1  0.267  0.267  0.152  1.0
  K  K2  1  0.733  0.733  0.848  1.0
  K  K3  1  0.237  0.237  0.520  1.0
  Tm  Tm4  1  0.241  0.759  0.500  1.0
  Tm  Tm5  1  0.759  0.241  0.500  1.0
  Tm  Tm6  1  0.741  0.741  0.179  1.0
  Tm  Tm7  1  0.259  0.259  0.821  1.0
  Tm  Tm8  1  0.264  0.738  0.819  1.0
  Tm  Tm9  1  0.738  0.264  0.819  1.0
  Tm  Tm10  1  0.262  0.736  0.181  1.0
  Tm  Tm11  1  0.736  0.262  0.181  1.0
  F  F12  1  0.381  0.855  0.263  1.0
  F  F13  1  0.855  0.381  0.263  1.0
  F  F14  1  0.366  0.835  0.585  1.0
  F  F15  1  0.835  0.366  0.585  1.0
  F  F16  1  0.996  0.996  0.233  1.0
  F  F17  1  0.603  0.603  0.751  1.0
  F  F18  1  0.895  0.895  0.574  1.0
  F  F19  1  0.004  0.669  0.001  1.0
  F  F20  1  0.669  0.004  0.001  1.0
  F  F21  1  0.397  0.397  0.249  1.0
  F  F22  1  0.996  0.331  0.999  1.0
  F  F23  1  0.331  0.996  0.999  1.0
  F  F24  1  0.145  0.619  0.737  1.0
  F  F25  1  0.619  0.145  0.737  1.0
  F  F26  1  0.323  0.677  0.000  1.0
  F  F27  1  0.677  0.323  0.000  1.0
  F  F28  1  0.004  0.004  0.767  1.0
  F  F29  1  0.605  0.605  0.412  1.0
  F  F30  1  0.999  0.656  0.239  1.0
  F  F31  1  0.656  0.999  0.239  1.0
  F  F32  1  0.001  0.344  0.761  1.0
  F  F33  1  0.344  0.001  0.761  1.0
  F  F34  1  0.387  0.387  0.881  1.0
  F  F35  1  0.105  0.105  0.426  1.0
  F  F36  1  0.395  0.395  0.588  1.0
  F  F37  1  0.165  0.634  0.415  1.0
  F  F38  1  0.634  0.165  0.415  1.0
  F  F39  1  0.613  0.613  0.119  1.0
[/CIF]
.