The compound described by KVF4 crystallizes in the orthorhombic Pnma space group. There are two inequivalent K sites. In the first K site, K(1) is bonded in a 7-coordinate geometry to one F(3), two equivalent F(5), and four equivalent F(4) atoms. In the second K site, K(2) is bonded in a 9-coordinate geometry to one F(2), two equivalent F(1), two equivalent F(4), and four equivalent F(5) atoms. V(1) is bonded to one F(2), one F(3), one F(4), one F(5), and two equivalent F(1) atoms to form corner-sharing VF6 octahedra. The corner-sharing octahedral tilt angles range from 25-35°. There are five inequivalent F sites. In the first F site, F(4) is bonded to one K(2), two equivalent K(1), and one V(1) atom to form a mixture of distorted corner and edge-sharing FK3V tetrahedra. In the second F site, F(5) is bonded to one K(1), two equivalent K(2), and one V(1) atom to form a mixture of distorted corner and edge-sharing FK3V tetrahedra. In the third F site, F(1) is bonded in a bent 150 degrees geometry to one K(2) and two equivalent V(1) atoms. In the fourth F site, F(2) is bonded in a distorted bent 150 degrees geometry to one K(2) and two equivalent V(1) atoms. In the fifth F site, F(3) is bonded in a distorted bent 150 degrees geometry to one K(1) and two equivalent V(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_KVF4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.587
_cell_length_b   7.715
_cell_length_c   12.189
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   713.485
_cell_formula_units_Z   8
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  0.250  0.624  0.512  1.0
  K  K1  1  0.750  0.376  0.488  1.0
  K  K2  1  0.750  0.124  0.988  1.0
  K  K3  1  0.250  0.876  0.012  1.0
  K  K4  1  0.250  0.125  0.527  1.0
  K  K5  1  0.750  0.875  0.473  1.0
  K  K6  1  0.750  0.625  0.973  1.0
  K  K7  1  0.250  0.375  0.027  1.0
  V  V8  1  0.501  0.625  0.248  1.0
  V  V9  1  0.001  0.375  0.752  1.0
  V  V10  1  0.499  0.125  0.252  1.0
  V  V11  1  0.999  0.875  0.748  1.0
  V  V12  1  0.499  0.375  0.752  1.0
  V  V13  1  0.999  0.625  0.248  1.0
  V  V14  1  0.501  0.875  0.748  1.0
  V  V15  1  0.001  0.125  0.252  1.0
  F  F16  1  0.445  0.375  0.249  1.0
  F  F17  1  0.945  0.625  0.751  1.0
  F  F18  1  0.555  0.875  0.251  1.0
  F  F19  1  0.055  0.125  0.749  1.0
  F  F20  1  0.555  0.625  0.751  1.0
  F  F21  1  0.055  0.375  0.249  1.0
  F  F22  1  0.445  0.125  0.749  1.0
  F  F23  1  0.945  0.875  0.251  1.0
  F  F24  1  0.250  0.426  0.788  1.0
  F  F25  1  0.750  0.574  0.212  1.0
  F  F26  1  0.750  0.926  0.712  1.0
  F  F27  1  0.250  0.074  0.288  1.0
  F  F28  1  0.750  0.324  0.718  1.0
  F  F29  1  0.250  0.676  0.282  1.0
  F  F30  1  0.250  0.824  0.782  1.0
  F  F31  1  0.750  0.176  0.218  1.0
  F  F32  1  0.049  0.115  0.100  1.0
  F  F33  1  0.549  0.885  0.900  1.0
  F  F34  1  0.951  0.615  0.400  1.0
  F  F35  1  0.451  0.385  0.600  1.0
  F  F36  1  0.951  0.885  0.900  1.0
  F  F37  1  0.451  0.115  0.100  1.0
  F  F38  1  0.049  0.385  0.600  1.0
  F  F39  1  0.549  0.615  0.400  1.0
  F  F40  1  0.954  0.135  0.404  1.0
  F  F41  1  0.454  0.865  0.596  1.0
  F  F42  1  0.046  0.635  0.096  1.0
  F  F43  1  0.546  0.365  0.904  1.0
  F  F44  1  0.046  0.865  0.596  1.0
  F  F45  1  0.546  0.135  0.404  1.0
  F  F46  1  0.954  0.365  0.904  1.0
  F  F47  1  0.454  0.635  0.096  1.0
[/CIF]
.
The compound described by KVF4 crystallizes in the orthorhombic Pnma space group. There are two inequivalent K sites. In the first K site, K(1) is bonded in a 7-coordinate geometry to one F(3), two equivalent F(5), and four equivalent F(4) atoms. In the second K site, K(2) is bonded in a 9-coordinate geometry to one F(2), two equivalent F(1), two equivalent F(4), and four equivalent F(5) atoms. V(1) is bonded to one F(2), one F(3), one F(4), one F(5), and two equivalent F(1) atoms to form corner-sharing VF6 octahedra. The corner-sharing octahedral tilt angles range from 25-35°. There are five inequivalent F sites. In the first F site, F(4) is bonded to one K(2), two equivalent K(1), and one V(1) atom to form a mixture of distorted corner and edge-sharing FK3V tetrahedra. In the second F site, F(5) is bonded to one K(1), two equivalent K(2), and one V(1) atom to form a mixture of distorted corner and edge-sharing FK3V tetrahedra. In the third F site, F(1) is bonded in a bent 150 degrees geometry to one K(2) and two equivalent V(1) atoms. In the fourth F site, F(2) is bonded in a distorted bent 150 degrees geometry to one K(2) and two equivalent V(1) atoms. In the fifth F site, F(3) is bonded in a distorted bent 150 degrees geometry to one K(1) and two equivalent V(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_KVF4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.587
_cell_length_b   7.715
_cell_length_c   12.189
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   713.485
_cell_formula_units_Z   8
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  0.250  0.624  0.512  1.0
  K  K1  1  0.750  0.376  0.488  1.0
  K  K2  1  0.750  0.124  0.988  1.0
  K  K3  1  0.250  0.876  0.012  1.0
  K  K4  1  0.250  0.125  0.527  1.0
  K  K5  1  0.750  0.875  0.473  1.0
  K  K6  1  0.750  0.625  0.973  1.0
  K  K7  1  0.250  0.375  0.027  1.0
  V  V8  1  0.501  0.625  0.248  1.0
  V  V9  1  0.001  0.375  0.752  1.0
  V  V10  1  0.499  0.125  0.252  1.0
  V  V11  1  0.999  0.875  0.748  1.0
  V  V12  1  0.499  0.375  0.752  1.0
  V  V13  1  0.999  0.625  0.248  1.0
  V  V14  1  0.501  0.875  0.748  1.0
  V  V15  1  0.001  0.125  0.252  1.0
  F  F16  1  0.445  0.375  0.249  1.0
  F  F17  1  0.945  0.625  0.751  1.0
  F  F18  1  0.555  0.875  0.251  1.0
  F  F19  1  0.055  0.125  0.749  1.0
  F  F20  1  0.555  0.625  0.751  1.0
  F  F21  1  0.055  0.375  0.249  1.0
  F  F22  1  0.445  0.125  0.749  1.0
  F  F23  1  0.945  0.875  0.251  1.0
  F  F24  1  0.250  0.426  0.788  1.0
  F  F25  1  0.750  0.574  0.212  1.0
  F  F26  1  0.750  0.926  0.712  1.0
  F  F27  1  0.250  0.074  0.288  1.0
  F  F28  1  0.750  0.324  0.718  1.0
  F  F29  1  0.250  0.676  0.282  1.0
  F  F30  1  0.250  0.824  0.782  1.0
  F  F31  1  0.750  0.176  0.218  1.0
  F  F32  1  0.049  0.115  0.100  1.0
  F  F33  1  0.549  0.885  0.900  1.0
  F  F34  1  0.951  0.615  0.400  1.0
  F  F35  1  0.451  0.385  0.600  1.0
  F  F36  1  0.951  0.885  0.900  1.0
  F  F37  1  0.451  0.115  0.100  1.0
  F  F38  1  0.049  0.385  0.600  1.0
  F  F39  1  0.549  0.615  0.400  1.0
  F  F40  1  0.954  0.135  0.404  1.0
  F  F41  1  0.454  0.865  0.596  1.0
  F  F42  1  0.046  0.635  0.096  1.0
  F  F43  1  0.546  0.365  0.904  1.0
  F  F44  1  0.046  0.865  0.596  1.0
  F  F45  1  0.546  0.135  0.404  1.0
  F  F46  1  0.954  0.365  0.904  1.0
  F  F47  1  0.454  0.635  0.096  1.0
[/CIF]
.