The crystal structure described by SrCaCo(PO4)2 crystallizes in the triclinic P-1 space group. Sr(1) is bonded in a 8-coordinate geometry to one O(2), one O(3), one O(4), one O(8), two equivalent O(1), and two equivalent O(6) atoms. Ca(1) is bonded to one O(1), one O(2), one O(4), one O(7), and two equivalent O(5) atoms to form CaO6 octahedra that share corners with four equivalent Co(1)O6 octahedra,  a cornercorner with one P(1)O4 tetrahedra, corners with three equivalent P(2)O4 tetrahedra,  an edgeedge with one Ca(1)O6 octahedra, and  an edgeedge with one P(1)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 59-83°. Co(1) is bonded to one O(3), one O(4), one O(5), one O(7), and two equivalent O(8) atoms to form distorted CoO6 octahedra that share corners with four equivalent Ca(1)O6 octahedra, corners with two equivalent P(1)O4 tetrahedra, corners with two equivalent P(2)O4 tetrahedra,  an edgeedge with one Co(1)O6 octahedra, and  an edgeedge with one P(2)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 59-83°. There are two inequivalent P sites. In the first P site, P(1) is bonded to one O(1), one O(2), one O(3), and one O(7) atom to form PO4 tetrahedra that share  a cornercorner with one Ca(1)O6 octahedra, corners with two equivalent Co(1)O6 octahedra, and  an edgeedge with one Ca(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 33-61°. In the second P site, P(2) is bonded to one O(4), one O(5), one O(6), and one O(8) atom to form PO4 tetrahedra that share corners with two equivalent Co(1)O6 octahedra, corners with three equivalent Ca(1)O6 octahedra, and  an edgeedge with one Co(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 47-58°. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to two equivalent Sr(1), one Ca(1), and one P(1) atom. In the second O site, O(2) is bonded in a 3-coordinate geometry to one Sr(1), one Ca(1), and one P(1) atom. In the third O site, O(3) is bonded in a 3-coordinate geometry to one Sr(1), one Co(1), and one P(1) atom. In the fourth O site, O(4) is bonded in a 4-coordinate geometry to one Sr(1), one Ca(1), one Co(1), and one P(2) atom. In the fifth O site, O(5) is bonded in a 4-coordinate geometry to two equivalent Ca(1), one Co(1), and one P(2) atom. In the sixth O site, O(6) is bonded in a distorted single-bond geometry to two equivalent Sr(1) and one P(2) atom. In the seventh O site, O(7) is bonded in a 3-coordinate geometry to one Ca(1), one Co(1), and one P(1) atom. In the eighth O site, O(8) is bonded in a 3-coordinate geometry to one Sr(1), two equivalent Co(1), and one P(2) atom. is represented by the CIF card [CIF]
data_SrCaCo(PO4)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.721
_cell_length_b   6.946
_cell_length_c   9.510
_cell_angle_alpha   109.499
_cell_angle_beta   101.689
_cell_angle_gamma   98.645
_symmetry_Int_Tables_number   1
_cell_volume   338.963
_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
  Sr  Sr0  1  0.265  0.808  0.059  1.0
  Sr  Sr1  1  0.735  0.192  0.941  1.0
  Ca  Ca2  1  0.998  0.416  0.660  1.0
  Ca  Ca3  1  0.002  0.584  0.340  1.0
  Co  Co4  1  0.645  0.851  0.562  1.0
  Co  Co5  1  0.355  0.149  0.438  1.0
  P  P6  1  0.394  0.418  0.226  1.0
  P  P7  1  0.606  0.582  0.774  1.0
  P  P8  1  0.839  0.034  0.299  1.0
  P  P9  1  0.161  0.966  0.701  1.0
  O  O10  1  0.840  0.559  0.879  1.0
  O  O11  1  0.622  0.452  0.166  1.0
  O  O12  1  0.652  0.800  0.761  1.0
  O  O13  1  0.958  0.097  0.691  1.0
  O  O14  1  0.378  0.548  0.834  1.0
  O  O15  1  0.018  0.732  0.598  1.0
  O  O16  1  0.982  0.268  0.402  1.0
  O  O17  1  0.271  0.001  0.870  1.0
  O  O18  1  0.348  0.200  0.239  1.0
  O  O19  1  0.729  0.999  0.130  1.0
  O  O20  1  0.160  0.441  0.121  1.0
  O  O21  1  0.427  0.591  0.389  1.0
  O  O22  1  0.573  0.409  0.611  1.0
  O  O23  1  0.636  0.967  0.374  1.0
  O  O24  1  0.042  0.903  0.309  1.0
  O  O25  1  0.364  0.033  0.626  1.0
[/CIF]
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The crystal structure described by SrCaCo(PO4)2 crystallizes in the triclinic P-1 space group. Sr(1) is bonded in a 8-coordinate geometry to one O(2), one O(3), one O(4), one O(8), two equivalent O(1), and two equivalent O(6) atoms. Ca(1) is bonded to one O(1), one O(2), one O(4), one O(7), and two equivalent O(5) atoms to form CaO6 octahedra that share corners with four equivalent Co(1)O6 octahedra,  a cornercorner with one P(1)O4 tetrahedra, corners with three equivalent P(2)O4 tetrahedra,  an edgeedge with one Ca(1)O6 octahedra, and  an edgeedge with one P(1)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 59-83°. Co(1) is bonded to one O(3), one O(4), one O(5), one O(7), and two equivalent O(8) atoms to form distorted CoO6 octahedra that share corners with four equivalent Ca(1)O6 octahedra, corners with two equivalent P(1)O4 tetrahedra, corners with two equivalent P(2)O4 tetrahedra,  an edgeedge with one Co(1)O6 octahedra, and  an edgeedge with one P(2)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 59-83°. There are two inequivalent P sites. In the first P site, P(1) is bonded to one O(1), one O(2), one O(3), and one O(7) atom to form PO4 tetrahedra that share  a cornercorner with one Ca(1)O6 octahedra, corners with two equivalent Co(1)O6 octahedra, and  an edgeedge with one Ca(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 33-61°. In the second P site, P(2) is bonded to one O(4), one O(5), one O(6), and one O(8) atom to form PO4 tetrahedra that share corners with two equivalent Co(1)O6 octahedra, corners with three equivalent Ca(1)O6 octahedra, and  an edgeedge with one Co(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 47-58°. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to two equivalent Sr(1), one Ca(1), and one P(1) atom. In the second O site, O(2) is bonded in a 3-coordinate geometry to one Sr(1), one Ca(1), and one P(1) atom. In the third O site, O(3) is bonded in a 3-coordinate geometry to one Sr(1), one Co(1), and one P(1) atom. In the fourth O site, O(4) is bonded in a 4-coordinate geometry to one Sr(1), one Ca(1), one Co(1), and one P(2) atom. In the fifth O site, O(5) is bonded in a 4-coordinate geometry to two equivalent Ca(1), one Co(1), and one P(2) atom. In the sixth O site, O(6) is bonded in a distorted single-bond geometry to two equivalent Sr(1) and one P(2) atom. In the seventh O site, O(7) is bonded in a 3-coordinate geometry to one Ca(1), one Co(1), and one P(1) atom. In the eighth O site, O(8) is bonded in a 3-coordinate geometry to one Sr(1), two equivalent Co(1), and one P(2) atom. is represented by the CIF card [CIF]
data_SrCaCo(PO4)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.721
_cell_length_b   6.946
_cell_length_c   9.510
_cell_angle_alpha   109.499
_cell_angle_beta   101.689
_cell_angle_gamma   98.645
_symmetry_Int_Tables_number   1
_cell_volume   338.963
_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
  Sr  Sr0  1  0.265  0.808  0.059  1.0
  Sr  Sr1  1  0.735  0.192  0.941  1.0
  Ca  Ca2  1  0.998  0.416  0.660  1.0
  Ca  Ca3  1  0.002  0.584  0.340  1.0
  Co  Co4  1  0.645  0.851  0.562  1.0
  Co  Co5  1  0.355  0.149  0.438  1.0
  P  P6  1  0.394  0.418  0.226  1.0
  P  P7  1  0.606  0.582  0.774  1.0
  P  P8  1  0.839  0.034  0.299  1.0
  P  P9  1  0.161  0.966  0.701  1.0
  O  O10  1  0.840  0.559  0.879  1.0
  O  O11  1  0.622  0.452  0.166  1.0
  O  O12  1  0.652  0.800  0.761  1.0
  O  O13  1  0.958  0.097  0.691  1.0
  O  O14  1  0.378  0.548  0.834  1.0
  O  O15  1  0.018  0.732  0.598  1.0
  O  O16  1  0.982  0.268  0.402  1.0
  O  O17  1  0.271  0.001  0.870  1.0
  O  O18  1  0.348  0.200  0.239  1.0
  O  O19  1  0.729  0.999  0.130  1.0
  O  O20  1  0.160  0.441  0.121  1.0
  O  O21  1  0.427  0.591  0.389  1.0
  O  O22  1  0.573  0.409  0.611  1.0
  O  O23  1  0.636  0.967  0.374  1.0
  O  O24  1  0.042  0.903  0.309  1.0
  O  O25  1  0.364  0.033  0.626  1.0
[/CIF]
.