The structure described by CsTb(PO3)4 crystallizes in the monoclinic P2_1 space group. Cs(1) is bonded in a 7-coordinate geometry to one O(10), one O(11), one O(12), one O(4), one O(5), one O(6), and one O(7) atom. Tb(1) is bonded in a 8-coordinate geometry to one O(1), one O(11), one O(12), one O(4), one O(5), one O(7), one O(8), and one O(9) atom. There are four inequivalent P sites. In the first P site, P(1) is bonded to one O(11), one O(2), one O(3), and one O(4) atom to form corner-sharing PO4 tetrahedra. In the second P site, P(2) is bonded to one O(1), one O(2), one O(6), and one O(9) atom to form corner-sharing PO4 tetrahedra. In the third P site, P(3) is bonded to one O(10), one O(12), one O(3), and one O(5) atom to form corner-sharing PO4 tetrahedra. In the fourth P site, P(4) is bonded to one O(10), one O(6), one O(7), and one O(8) atom to form corner-sharing PO4 tetrahedra. There are twelve inequivalent O sites. In the first O site, O(11) is bonded in a 1-coordinate geometry to one Cs(1), one Tb(1), and one P(1) atom. In the second O site, O(12) is bonded in a distorted single-bond geometry to one Cs(1), one Tb(1), and one P(3) atom. In the third O site, O(1) is bonded in a distorted single-bond geometry to one Tb(1) and one P(2) atom. In the fourth O site, O(2) is bonded in a bent 150 degrees geometry to one P(1) and one P(2) atom. In the fifth O site, O(3) is bonded in a bent 120 degrees geometry to one P(1) and one P(3) atom. In the sixth O site, O(4) is bonded in a 2-coordinate geometry to one Cs(1), one Tb(1), and one P(1) atom. In the seventh O site, O(5) is bonded in a 1-coordinate geometry to one Cs(1), one Tb(1), and one P(3) atom. In the eighth O site, O(6) is bonded in a distorted bent 120 degrees geometry to one Cs(1), one P(2), and one P(4) atom. In the ninth O site, O(7) is bonded in a 1-coordinate geometry to one Cs(1), one Tb(1), and one P(4) atom. In the tenth O site, O(8) is bonded in a distorted linear geometry to one Tb(1) and one P(4) atom. In the eleventh O site, O(9) is bonded in a distorted bent 150 degrees geometry to one Tb(1) and one P(2) atom. In the twelfth O site, O(10) is bonded in a distorted bent 120 degrees geometry to one Cs(1), one P(3), and one P(4) atom. is represented by the CIF file [CIF]
data_CsTb(PO3)4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.173
_cell_length_b   7.111
_cell_length_c   8.809
_cell_angle_alpha   80.017
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   565.890
_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
  Cs  Cs0  1  0.666  0.669  0.826  1.0
  Cs  Cs1  1  0.166  0.331  0.174  1.0
  Tb  Tb2  1  0.501  0.801  0.303  1.0
  Tb  Tb3  1  0.001  0.199  0.697  1.0
  P  P4  1  0.133  0.642  0.460  1.0
  P  P5  1  0.633  0.358  0.540  1.0
  P  P6  1  0.391  0.059  0.621  1.0
  P  P7  1  0.891  0.941  0.379  1.0
  P  P8  1  0.575  0.313  0.223  1.0
  P  P9  1  0.075  0.687  0.777  1.0
  P  P10  1  0.775  0.083  0.069  1.0
  P  P11  1  0.275  0.917  0.931  1.0
  O  O12  1  0.745  0.849  0.407  1.0
  O  O13  1  0.245  0.151  0.593  1.0
  O  O14  1  0.518  0.212  0.634  1.0
  O  O15  1  0.018  0.788  0.366  1.0
  O  O16  1  0.668  0.281  0.382  1.0
  O  O17  1  0.168  0.719  0.618  1.0
  O  O18  1  0.559  0.548  0.503  1.0
  O  O19  1  0.059  0.452  0.497  1.0
  O  O20  1  0.528  0.518  0.182  1.0
  O  O21  1  0.028  0.482  0.818  1.0
  O  O22  1  0.900  0.052  0.200  1.0
  O  O23  1  0.400  0.948  0.800  1.0
  O  O24  1  0.167  0.078  0.904  1.0
  O  O25  1  0.667  0.922  0.096  1.0
  O  O26  1  0.849  0.132  0.917  1.0
  O  O27  1  0.349  0.868  0.083  1.0
  O  O28  1  0.445  0.922  0.523  1.0
  O  O29  1  0.945  0.078  0.477  1.0
  O  O30  1  0.201  0.718  0.899  1.0
  O  O31  1  0.701  0.282  0.101  1.0
  O  O32  1  0.770  0.341  0.633  1.0
  O  O33  1  0.270  0.659  0.367  1.0
  O  O34  1  0.964  0.844  0.767  1.0
  O  O35  1  0.464  0.156  0.233  1.0
[/CIF]
.
The structure described by CsTb(PO3)4 crystallizes in the monoclinic P2_1 space group. Cs(1) is bonded in a 7-coordinate geometry to one O(10), one O(11), one O(12), one O(4), one O(5), one O(6), and one O(7) atom. Tb(1) is bonded in a 8-coordinate geometry to one O(1), one O(11), one O(12), one O(4), one O(5), one O(7), one O(8), and one O(9) atom. There are four inequivalent P sites. In the first P site, P(1) is bonded to one O(11), one O(2), one O(3), and one O(4) atom to form corner-sharing PO4 tetrahedra. In the second P site, P(2) is bonded to one O(1), one O(2), one O(6), and one O(9) atom to form corner-sharing PO4 tetrahedra. In the third P site, P(3) is bonded to one O(10), one O(12), one O(3), and one O(5) atom to form corner-sharing PO4 tetrahedra. In the fourth P site, P(4) is bonded to one O(10), one O(6), one O(7), and one O(8) atom to form corner-sharing PO4 tetrahedra. There are twelve inequivalent O sites. In the first O site, O(11) is bonded in a 1-coordinate geometry to one Cs(1), one Tb(1), and one P(1) atom. In the second O site, O(12) is bonded in a distorted single-bond geometry to one Cs(1), one Tb(1), and one P(3) atom. In the third O site, O(1) is bonded in a distorted single-bond geometry to one Tb(1) and one P(2) atom. In the fourth O site, O(2) is bonded in a bent 150 degrees geometry to one P(1) and one P(2) atom. In the fifth O site, O(3) is bonded in a bent 120 degrees geometry to one P(1) and one P(3) atom. In the sixth O site, O(4) is bonded in a 2-coordinate geometry to one Cs(1), one Tb(1), and one P(1) atom. In the seventh O site, O(5) is bonded in a 1-coordinate geometry to one Cs(1), one Tb(1), and one P(3) atom. In the eighth O site, O(6) is bonded in a distorted bent 120 degrees geometry to one Cs(1), one P(2), and one P(4) atom. In the ninth O site, O(7) is bonded in a 1-coordinate geometry to one Cs(1), one Tb(1), and one P(4) atom. In the tenth O site, O(8) is bonded in a distorted linear geometry to one Tb(1) and one P(4) atom. In the eleventh O site, O(9) is bonded in a distorted bent 150 degrees geometry to one Tb(1) and one P(2) atom. In the twelfth O site, O(10) is bonded in a distorted bent 120 degrees geometry to one Cs(1), one P(3), and one P(4) atom. is represented by the CIF file [CIF]
data_CsTb(PO3)4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.173
_cell_length_b   7.111
_cell_length_c   8.809
_cell_angle_alpha   80.017
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   565.890
_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
  Cs  Cs0  1  0.666  0.669  0.826  1.0
  Cs  Cs1  1  0.166  0.331  0.174  1.0
  Tb  Tb2  1  0.501  0.801  0.303  1.0
  Tb  Tb3  1  0.001  0.199  0.697  1.0
  P  P4  1  0.133  0.642  0.460  1.0
  P  P5  1  0.633  0.358  0.540  1.0
  P  P6  1  0.391  0.059  0.621  1.0
  P  P7  1  0.891  0.941  0.379  1.0
  P  P8  1  0.575  0.313  0.223  1.0
  P  P9  1  0.075  0.687  0.777  1.0
  P  P10  1  0.775  0.083  0.069  1.0
  P  P11  1  0.275  0.917  0.931  1.0
  O  O12  1  0.745  0.849  0.407  1.0
  O  O13  1  0.245  0.151  0.593  1.0
  O  O14  1  0.518  0.212  0.634  1.0
  O  O15  1  0.018  0.788  0.366  1.0
  O  O16  1  0.668  0.281  0.382  1.0
  O  O17  1  0.168  0.719  0.618  1.0
  O  O18  1  0.559  0.548  0.503  1.0
  O  O19  1  0.059  0.452  0.497  1.0
  O  O20  1  0.528  0.518  0.182  1.0
  O  O21  1  0.028  0.482  0.818  1.0
  O  O22  1  0.900  0.052  0.200  1.0
  O  O23  1  0.400  0.948  0.800  1.0
  O  O24  1  0.167  0.078  0.904  1.0
  O  O25  1  0.667  0.922  0.096  1.0
  O  O26  1  0.849  0.132  0.917  1.0
  O  O27  1  0.349  0.868  0.083  1.0
  O  O28  1  0.445  0.922  0.523  1.0
  O  O29  1  0.945  0.078  0.477  1.0
  O  O30  1  0.201  0.718  0.899  1.0
  O  O31  1  0.701  0.282  0.101  1.0
  O  O32  1  0.770  0.341  0.633  1.0
  O  O33  1  0.270  0.659  0.367  1.0
  O  O34  1  0.964  0.844  0.767  1.0
  O  O35  1  0.464  0.156  0.233  1.0
[/CIF]
.