The structure described by K2CeCPO7 crystallizes in the monoclinic P2_1/m space group. K(1) is bonded in a 6-coordinate geometry to one O(1), one O(2), one O(3), one O(4), one O(5), and one O(6) atom. Ce(1) is bonded to one O(2), one O(3), one O(5), one O(6), and two equivalent O(4) atoms to form distorted CeO6 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(5), one O(6), and two equivalent O(4) atoms to form PO4 tetrahedra that share corners with four equivalent Ce(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 39-55°. There are six inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to two equivalent K(1) and one C(1) atom. In the second O site, O(2) is bonded in a distorted rectangular see-saw-like geometry to two equivalent K(1), one Ce(1), and one C(1) atom. In the third O site, O(3) is bonded in a distorted trigonal pyramidal geometry to two equivalent K(1), one Ce(1), and one C(1) atom. In the fourth O site, O(4) is bonded in a 1-coordinate geometry to one K(1), one Ce(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(1), one Ce(1), and one P(1) atom. In the sixth O site, O(6) is bonded in a 4-coordinate geometry to two equivalent K(1), one Ce(1), and one P(1) atom. is represented by the CIF card [CIF]
data_K2CePCO7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.393
_cell_length_b   5.812
_cell_length_c   10.095
_cell_angle_alpha   87.548
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   433.357
_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  0.010  0.243  0.784  1.0
  K  K1  1  0.490  0.243  0.784  1.0
  K  K2  1  0.510  0.757  0.216  1.0
  K  K3  1  0.990  0.757  0.216  1.0
  Ce  Ce4  1  0.750  0.777  0.626  1.0
  Ce  Ce5  1  0.250  0.223  0.374  1.0
  P  P6  1  0.250  0.708  0.574  1.0
  P  P7  1  0.750  0.292  0.426  1.0
  C  C8  1  0.750  0.729  0.912  1.0
  C  C9  1  0.250  0.271  0.088  1.0
  O  O10  1  0.250  0.299  0.964  1.0
  O  O11  1  0.750  0.933  0.850  1.0
  O  O12  1  0.750  0.552  0.832  1.0
  O  O13  1  0.076  0.785  0.647  1.0
  O  O14  1  0.424  0.785  0.647  1.0
  O  O15  1  0.750  0.183  0.571  1.0
  O  O16  1  0.250  0.439  0.567  1.0
  O  O17  1  0.750  0.561  0.433  1.0
  O  O18  1  0.250  0.817  0.429  1.0
  O  O19  1  0.576  0.215  0.353  1.0
  O  O20  1  0.924  0.215  0.353  1.0
  O  O21  1  0.250  0.448  0.168  1.0
  O  O22  1  0.250  0.067  0.150  1.0
  O  O23  1  0.750  0.701  0.036  1.0
[/CIF]
.
The structure described by K2CeCPO7 crystallizes in the monoclinic P2_1/m space group. K(1) is bonded in a 6-coordinate geometry to one O(1), one O(2), one O(3), one O(4), one O(5), and one O(6) atom. Ce(1) is bonded to one O(2), one O(3), one O(5), one O(6), and two equivalent O(4) atoms to form distorted CeO6 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(5), one O(6), and two equivalent O(4) atoms to form PO4 tetrahedra that share corners with four equivalent Ce(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 39-55°. There are six inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to two equivalent K(1) and one C(1) atom. In the second O site, O(2) is bonded in a distorted rectangular see-saw-like geometry to two equivalent K(1), one Ce(1), and one C(1) atom. In the third O site, O(3) is bonded in a distorted trigonal pyramidal geometry to two equivalent K(1), one Ce(1), and one C(1) atom. In the fourth O site, O(4) is bonded in a 1-coordinate geometry to one K(1), one Ce(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(1), one Ce(1), and one P(1) atom. In the sixth O site, O(6) is bonded in a 4-coordinate geometry to two equivalent K(1), one Ce(1), and one P(1) atom. is represented by the CIF card [CIF]
data_K2CePCO7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.393
_cell_length_b   5.812
_cell_length_c   10.095
_cell_angle_alpha   87.548
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   433.357
_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  0.010  0.243  0.784  1.0
  K  K1  1  0.490  0.243  0.784  1.0
  K  K2  1  0.510  0.757  0.216  1.0
  K  K3  1  0.990  0.757  0.216  1.0
  Ce  Ce4  1  0.750  0.777  0.626  1.0
  Ce  Ce5  1  0.250  0.223  0.374  1.0
  P  P6  1  0.250  0.708  0.574  1.0
  P  P7  1  0.750  0.292  0.426  1.0
  C  C8  1  0.750  0.729  0.912  1.0
  C  C9  1  0.250  0.271  0.088  1.0
  O  O10  1  0.250  0.299  0.964  1.0
  O  O11  1  0.750  0.933  0.850  1.0
  O  O12  1  0.750  0.552  0.832  1.0
  O  O13  1  0.076  0.785  0.647  1.0
  O  O14  1  0.424  0.785  0.647  1.0
  O  O15  1  0.750  0.183  0.571  1.0
  O  O16  1  0.250  0.439  0.567  1.0
  O  O17  1  0.750  0.561  0.433  1.0
  O  O18  1  0.250  0.817  0.429  1.0
  O  O19  1  0.576  0.215  0.353  1.0
  O  O20  1  0.924  0.215  0.353  1.0
  O  O21  1  0.250  0.448  0.168  1.0
  O  O22  1  0.250  0.067  0.150  1.0
  O  O23  1  0.750  0.701  0.036  1.0
[/CIF]
.