The material structure described by K3Eu(PO4)2 crystallizes in the monoclinic P2_1/m space group. There are three inequivalent K sites. In the first K site, K(1) is bonded in a 11-coordinate geometry to one O(2), one O(3), two equivalent O(1), three equivalent O(4), and four equivalent O(6) atoms. In the second K site, K(2) is bonded in a 9-coordinate geometry to one O(4), one O(5), two equivalent O(1), two equivalent O(6), and three equivalent O(2) atoms. In the third K site, K(3) is bonded in a 10-coordinate geometry to one O(2), two equivalent O(6), three equivalent O(5), and four equivalent O(1) atoms. Eu(1) is bonded in a 7-coordinate geometry to one O(3), one O(4), one O(5), two equivalent O(1), and two equivalent O(6) atoms. There are two inequivalent P sites. In the first P site, P(1) is bonded in a tetrahedral geometry to one O(3), one O(4), and two equivalent O(6) atoms. In the second P site, P(2) is bonded in a tetrahedral geometry to one O(2), one O(5), and two equivalent O(1) atoms. There are six inequivalent O sites. In the first O site, O(1) is bonded in a 1-coordinate geometry to one K(1), one K(2), two equivalent K(3), one Eu(1), and one P(2) atom. In the second O site, O(2) is bonded in a distorted single-bond geometry to one K(1), one K(3), three equivalent K(2), and one P(2) atom. In the third O site, O(3) is bonded in a distorted single-bond geometry to one K(1), one Eu(1), and one P(1) atom. In the fourth O site, O(4) is bonded in a distorted single-bond geometry to one K(2), three equivalent K(1), one Eu(1), and one P(1) atom. In the fifth O site, O(5) is bonded in a distorted single-bond geometry to one K(2), three equivalent K(3), one Eu(1), and one P(2) atom. In the sixth O site, O(6) is bonded in a 1-coordinate geometry to one K(2), one K(3), two equivalent K(1), one Eu(1), and one P(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_K3Eu(PO4)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.749
_cell_length_b   7.558
_cell_length_c   9.684
_cell_angle_alpha   88.773
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   420.642
_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  0.250  0.357  0.911  1.0
  K  K1  1  0.250  0.507  0.308  1.0
  K  K2  1  0.750  0.200  0.415  1.0
  K  K3  1  0.750  0.493  0.692  1.0
  K  K4  1  0.250  0.800  0.585  1.0
  K  K5  1  0.750  0.642  0.089  1.0
  Eu  Eu6  1  0.750  0.994  0.790  1.0
  Eu  Eu7  1  0.250  0.006  0.210  1.0
  P  P8  1  0.750  0.191  0.072  1.0
  P  P9  1  0.250  0.809  0.928  1.0
  P  P10  1  0.250  0.235  0.588  1.0
  P  P11  1  0.750  0.765  0.412  1.0
  O  O12  1  0.972  0.846  0.342  1.0
  O  O13  1  0.472  0.154  0.658  1.0
  O  O14  1  0.028  0.154  0.658  1.0
  O  O15  1  0.528  0.846  0.342  1.0
  O  O16  1  0.250  0.437  0.604  1.0
  O  O17  1  0.750  0.563  0.396  1.0
  O  O18  1  0.250  0.011  0.953  1.0
  O  O19  1  0.750  0.989  0.047  1.0
  O  O20  1  0.250  0.715  0.073  1.0
  O  O21  1  0.750  0.285  0.927  1.0
  O  O22  1  0.250  0.183  0.433  1.0
  O  O23  1  0.029  0.755  0.845  1.0
  O  O24  1  0.471  0.755  0.845  1.0
  O  O25  1  0.971  0.245  0.155  1.0
  O  O26  1  0.529  0.245  0.155  1.0
  O  O27  1  0.750  0.817  0.567  1.0
[/CIF]
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The material structure described by K3Eu(PO4)2 crystallizes in the monoclinic P2_1/m space group. There are three inequivalent K sites. In the first K site, K(1) is bonded in a 11-coordinate geometry to one O(2), one O(3), two equivalent O(1), three equivalent O(4), and four equivalent O(6) atoms. In the second K site, K(2) is bonded in a 9-coordinate geometry to one O(4), one O(5), two equivalent O(1), two equivalent O(6), and three equivalent O(2) atoms. In the third K site, K(3) is bonded in a 10-coordinate geometry to one O(2), two equivalent O(6), three equivalent O(5), and four equivalent O(1) atoms. Eu(1) is bonded in a 7-coordinate geometry to one O(3), one O(4), one O(5), two equivalent O(1), and two equivalent O(6) atoms. There are two inequivalent P sites. In the first P site, P(1) is bonded in a tetrahedral geometry to one O(3), one O(4), and two equivalent O(6) atoms. In the second P site, P(2) is bonded in a tetrahedral geometry to one O(2), one O(5), and two equivalent O(1) atoms. There are six inequivalent O sites. In the first O site, O(1) is bonded in a 1-coordinate geometry to one K(1), one K(2), two equivalent K(3), one Eu(1), and one P(2) atom. In the second O site, O(2) is bonded in a distorted single-bond geometry to one K(1), one K(3), three equivalent K(2), and one P(2) atom. In the third O site, O(3) is bonded in a distorted single-bond geometry to one K(1), one Eu(1), and one P(1) atom. In the fourth O site, O(4) is bonded in a distorted single-bond geometry to one K(2), three equivalent K(1), one Eu(1), and one P(1) atom. In the fifth O site, O(5) is bonded in a distorted single-bond geometry to one K(2), three equivalent K(3), one Eu(1), and one P(2) atom. In the sixth O site, O(6) is bonded in a 1-coordinate geometry to one K(2), one K(3), two equivalent K(1), one Eu(1), and one P(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_K3Eu(PO4)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.749
_cell_length_b   7.558
_cell_length_c   9.684
_cell_angle_alpha   88.773
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   420.642
_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  0.250  0.357  0.911  1.0
  K  K1  1  0.250  0.507  0.308  1.0
  K  K2  1  0.750  0.200  0.415  1.0
  K  K3  1  0.750  0.493  0.692  1.0
  K  K4  1  0.250  0.800  0.585  1.0
  K  K5  1  0.750  0.642  0.089  1.0
  Eu  Eu6  1  0.750  0.994  0.790  1.0
  Eu  Eu7  1  0.250  0.006  0.210  1.0
  P  P8  1  0.750  0.191  0.072  1.0
  P  P9  1  0.250  0.809  0.928  1.0
  P  P10  1  0.250  0.235  0.588  1.0
  P  P11  1  0.750  0.765  0.412  1.0
  O  O12  1  0.972  0.846  0.342  1.0
  O  O13  1  0.472  0.154  0.658  1.0
  O  O14  1  0.028  0.154  0.658  1.0
  O  O15  1  0.528  0.846  0.342  1.0
  O  O16  1  0.250  0.437  0.604  1.0
  O  O17  1  0.750  0.563  0.396  1.0
  O  O18  1  0.250  0.011  0.953  1.0
  O  O19  1  0.750  0.989  0.047  1.0
  O  O20  1  0.250  0.715  0.073  1.0
  O  O21  1  0.750  0.285  0.927  1.0
  O  O22  1  0.250  0.183  0.433  1.0
  O  O23  1  0.029  0.755  0.845  1.0
  O  O24  1  0.471  0.755  0.845  1.0
  O  O25  1  0.971  0.245  0.155  1.0
  O  O26  1  0.529  0.245  0.155  1.0
  O  O27  1  0.750  0.817  0.567  1.0
[/CIF]
.