The structure described by K2TbCPO7 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. Tb(1) is bonded to one O(2), one O(3), one O(5), one O(6), and two equivalent O(4) atoms to form TbO6 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 Tb(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 37-47°. 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 Tb(1), and one C(1) atom. In the third O site, O(3) is bonded in a 4-coordinate geometry to two equivalent K(1), one Tb(1), and one C(1) atom. In the fourth O site, O(4) is bonded in a 2-coordinate geometry to one K(1), one Tb(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 Tb(1), and one P(1) atom. In the sixth O site, O(6) is bonded in a 2-coordinate geometry to two equivalent K(1), one Tb(1), and one P(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_K2TbPCO7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.171
_cell_length_b   5.851
_cell_length_c   10.028
_cell_angle_alpha   88.027
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   420.456
_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  0.489  0.247  0.781  1.0
  K  K1  1  0.011  0.247  0.781  1.0
  K  K2  1  0.511  0.753  0.219  1.0
  K  K3  1  0.989  0.753  0.219  1.0
  Tb  Tb4  1  0.750  0.782  0.630  1.0
  Tb  Tb5  1  0.250  0.218  0.370  1.0
  P  P6  1  0.250  0.710  0.569  1.0
  P  P7  1  0.750  0.290  0.431  1.0
  C  C8  1  0.750  0.729  0.906  1.0
  C  C9  1  0.250  0.271  0.094  1.0
  O  O10  1  0.250  0.302  0.969  1.0
  O  O11  1  0.750  0.933  0.846  1.0
  O  O12  1  0.750  0.556  0.823  1.0
  O  O13  1  0.071  0.772  0.647  1.0
  O  O14  1  0.429  0.772  0.647  1.0
  O  O15  1  0.750  0.156  0.570  1.0
  O  O16  1  0.250  0.448  0.544  1.0
  O  O17  1  0.750  0.552  0.456  1.0
  O  O18  1  0.250  0.844  0.430  1.0
  O  O19  1  0.571  0.228  0.353  1.0
  O  O20  1  0.929  0.228  0.353  1.0
  O  O21  1  0.250  0.444  0.177  1.0
  O  O22  1  0.250  0.067  0.154  1.0
  O  O23  1  0.750  0.698  0.031  1.0
[/CIF]
.
The structure described by K2TbCPO7 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. Tb(1) is bonded to one O(2), one O(3), one O(5), one O(6), and two equivalent O(4) atoms to form TbO6 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 Tb(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 37-47°. 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 Tb(1), and one C(1) atom. In the third O site, O(3) is bonded in a 4-coordinate geometry to two equivalent K(1), one Tb(1), and one C(1) atom. In the fourth O site, O(4) is bonded in a 2-coordinate geometry to one K(1), one Tb(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 Tb(1), and one P(1) atom. In the sixth O site, O(6) is bonded in a 2-coordinate geometry to two equivalent K(1), one Tb(1), and one P(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_K2TbPCO7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.171
_cell_length_b   5.851
_cell_length_c   10.028
_cell_angle_alpha   88.027
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   420.456
_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  0.489  0.247  0.781  1.0
  K  K1  1  0.011  0.247  0.781  1.0
  K  K2  1  0.511  0.753  0.219  1.0
  K  K3  1  0.989  0.753  0.219  1.0
  Tb  Tb4  1  0.750  0.782  0.630  1.0
  Tb  Tb5  1  0.250  0.218  0.370  1.0
  P  P6  1  0.250  0.710  0.569  1.0
  P  P7  1  0.750  0.290  0.431  1.0
  C  C8  1  0.750  0.729  0.906  1.0
  C  C9  1  0.250  0.271  0.094  1.0
  O  O10  1  0.250  0.302  0.969  1.0
  O  O11  1  0.750  0.933  0.846  1.0
  O  O12  1  0.750  0.556  0.823  1.0
  O  O13  1  0.071  0.772  0.647  1.0
  O  O14  1  0.429  0.772  0.647  1.0
  O  O15  1  0.750  0.156  0.570  1.0
  O  O16  1  0.250  0.448  0.544  1.0
  O  O17  1  0.750  0.552  0.456  1.0
  O  O18  1  0.250  0.844  0.430  1.0
  O  O19  1  0.571  0.228  0.353  1.0
  O  O20  1  0.929  0.228  0.353  1.0
  O  O21  1  0.250  0.444  0.177  1.0
  O  O22  1  0.250  0.067  0.154  1.0
  O  O23  1  0.750  0.698  0.031  1.0
[/CIF]
.