The structure described by K3VCPO7 crystallizes in the monoclinic P2_1/m space group. There are two inequivalent K sites. In the first K site, K(1) is bonded in a 6-coordinate geometry to one O(2), one O(3), two equivalent O(1), and two equivalent O(6) atoms. In the second K site, K(2) is bonded in a 7-coordinate geometry to one O(1), one O(2), one O(3), one O(4), one O(5), and two equivalent O(6) atoms. V(1) is bonded to one O(2), one O(3), one O(4), one O(5), and two equivalent O(6) atoms to form VO6 octahedra that share corners with four equivalent P(1)O4 tetrahedra. C(1) is bonded in a trigonal planar geometry to one O(1), one O(2), and one O(3) atom. P(1) is bonded to one O(4), one O(5), and two equivalent O(6) atoms to form PO4 tetrahedra that share corners with four equivalent V(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 16-42°. There are six inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to two equivalent K(1), two equivalent K(2), and one C(1) atom. In the second O site, O(2) is bonded in a 5-coordinate geometry to one K(1), two equivalent K(2), one V(1), and one C(1) atom. In the third O site, O(3) is bonded in a 5-coordinate geometry to one K(1), two equivalent K(2), one V(1), and one C(1) atom. In the fourth O site, O(4) is bonded in a 4-coordinate geometry to two equivalent K(2), one V(1), and one P(1) atom. In the fifth O site, O(5) is bonded in a distorted rectangular see-saw-like geometry to two equivalent K(2), one V(1), and one P(1) atom. In the sixth O site, O(6) is bonded in a 5-coordinate geometry to one K(1), two equivalent K(2), one V(1), and one P(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_K3VPCO7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.698
_cell_length_b   9.690
_cell_length_c   6.999
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   89.982
_symmetry_Int_Tables_number   1
_cell_volume   386.445
_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
  K  K0  1  0.758  0.072  0.250  1.0
  K  K1  1  0.242  0.928  0.750  1.0
  K  K2  1  0.256  0.287  0.010  1.0
  K  K3  1  0.256  0.287  0.490  1.0
  K  K4  1  0.744  0.713  0.510  1.0
  K  K5  1  0.744  0.713  0.990  1.0
  V  V6  1  0.238  0.652  0.250  1.0
  V  V7  1  0.762  0.348  0.750  1.0
  P  P8  1  0.731  0.418  0.250  1.0
  P  P9  1  0.269  0.582  0.750  1.0
  C  C10  1  0.742  0.079  0.750  1.0
  C  C11  1  0.258  0.921  0.250  1.0
  O  O12  1  0.265  0.054  0.250  1.0
  O  O13  1  0.735  0.946  0.750  1.0
  O  O14  1  0.942  0.147  0.750  1.0
  O  O15  1  0.058  0.853  0.250  1.0
  O  O16  1  0.550  0.154  0.750  1.0
  O  O17  1  0.450  0.846  0.250  1.0
  O  O18  1  0.478  0.478  0.250  1.0
  O  O19  1  0.522  0.522  0.750  1.0
  O  O20  1  0.086  0.464  0.750  1.0
  O  O21  1  0.914  0.536  0.250  1.0
  O  O22  1  0.763  0.324  0.069  1.0
  O  O23  1  0.763  0.324  0.431  1.0
  O  O24  1  0.237  0.676  0.569  1.0
  O  O25  1  0.237  0.676  0.931  1.0
[/CIF]
.
The structure described by K3VCPO7 crystallizes in the monoclinic P2_1/m space group. There are two inequivalent K sites. In the first K site, K(1) is bonded in a 6-coordinate geometry to one O(2), one O(3), two equivalent O(1), and two equivalent O(6) atoms. In the second K site, K(2) is bonded in a 7-coordinate geometry to one O(1), one O(2), one O(3), one O(4), one O(5), and two equivalent O(6) atoms. V(1) is bonded to one O(2), one O(3), one O(4), one O(5), and two equivalent O(6) atoms to form VO6 octahedra that share corners with four equivalent P(1)O4 tetrahedra. C(1) is bonded in a trigonal planar geometry to one O(1), one O(2), and one O(3) atom. P(1) is bonded to one O(4), one O(5), and two equivalent O(6) atoms to form PO4 tetrahedra that share corners with four equivalent V(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 16-42°. There are six inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to two equivalent K(1), two equivalent K(2), and one C(1) atom. In the second O site, O(2) is bonded in a 5-coordinate geometry to one K(1), two equivalent K(2), one V(1), and one C(1) atom. In the third O site, O(3) is bonded in a 5-coordinate geometry to one K(1), two equivalent K(2), one V(1), and one C(1) atom. In the fourth O site, O(4) is bonded in a 4-coordinate geometry to two equivalent K(2), one V(1), and one P(1) atom. In the fifth O site, O(5) is bonded in a distorted rectangular see-saw-like geometry to two equivalent K(2), one V(1), and one P(1) atom. In the sixth O site, O(6) is bonded in a 5-coordinate geometry to one K(1), two equivalent K(2), one V(1), and one P(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_K3VPCO7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.698
_cell_length_b   9.690
_cell_length_c   6.999
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   89.982
_symmetry_Int_Tables_number   1
_cell_volume   386.445
_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
  K  K0  1  0.758  0.072  0.250  1.0
  K  K1  1  0.242  0.928  0.750  1.0
  K  K2  1  0.256  0.287  0.010  1.0
  K  K3  1  0.256  0.287  0.490  1.0
  K  K4  1  0.744  0.713  0.510  1.0
  K  K5  1  0.744  0.713  0.990  1.0
  V  V6  1  0.238  0.652  0.250  1.0
  V  V7  1  0.762  0.348  0.750  1.0
  P  P8  1  0.731  0.418  0.250  1.0
  P  P9  1  0.269  0.582  0.750  1.0
  C  C10  1  0.742  0.079  0.750  1.0
  C  C11  1  0.258  0.921  0.250  1.0
  O  O12  1  0.265  0.054  0.250  1.0
  O  O13  1  0.735  0.946  0.750  1.0
  O  O14  1  0.942  0.147  0.750  1.0
  O  O15  1  0.058  0.853  0.250  1.0
  O  O16  1  0.550  0.154  0.750  1.0
  O  O17  1  0.450  0.846  0.250  1.0
  O  O18  1  0.478  0.478  0.250  1.0
  O  O19  1  0.522  0.522  0.750  1.0
  O  O20  1  0.086  0.464  0.750  1.0
  O  O21  1  0.914  0.536  0.250  1.0
  O  O22  1  0.763  0.324  0.069  1.0
  O  O23  1  0.763  0.324  0.431  1.0
  O  O24  1  0.237  0.676  0.569  1.0
  O  O25  1  0.237  0.676  0.931  1.0
[/CIF]
.