The compound described by BaMgPr(CoO3)2 crystallizes in the triclinic P1 space group. Ba(1) is bonded in a 10-coordinate geometry to two equivalent O(1), two equivalent O(3), two equivalent O(4), and four equivalent O(6) atoms. Mg(1) is bonded to one O(6), two equivalent O(1), and two equivalent O(2) atoms to form MgO5 trigonal bipyramids that share  a cornercorner with one Co(2)O6 octahedra, corners with four equivalent Mg(1)O5 trigonal bipyramids, and edges with four equivalent Co(1)O5 trigonal bipyramids. The corner-sharing octahedral tilt angles are 2°. Pr(1) is bonded in a 9-coordinate geometry to one O(2), two equivalent O(3), two equivalent O(4), and four equivalent O(5) atoms. There are two inequivalent Co sites. In the first Co site, Co(1) is bonded to one O(5), two equivalent O(1), and two equivalent O(2) atoms to form CoO5 trigonal bipyramids that share  a cornercorner with one Co(2)O6 octahedra, corners with four equivalent Co(1)O5 trigonal bipyramids, and edges with four equivalent Mg(1)O5 trigonal bipyramids. The corner-sharing octahedral tilt angles are 15°. In the second Co site, Co(2) is bonded to one O(5), one O(6), two equivalent O(3), and two equivalent O(4) atoms to form distorted CoO6 octahedra that share corners with four equivalent Co(2)O6 octahedra,  a cornercorner with one Mg(1)O5 trigonal bipyramid, and  a cornercorner with one Co(1)O5 trigonal bipyramid. The corner-sharing octahedral tilt angles range from 14-16°. There are six inequivalent O sites. In the first O site, O(1) is bonded in a distorted see-saw-like geometry to two equivalent Ba(1), two equivalent Mg(1), and two equivalent Co(1) atoms. In the second O site, O(2) is bonded to two equivalent Mg(1), one Pr(1), and two equivalent Co(1) atoms to form distorted OPrMg2Co2 trigonal bipyramids that share corners with two equivalent O(4)Ba2Pr2Co2 octahedra, corners with two equivalent O(6)Ba4MgCo octahedra, and corners with four equivalent O(2)PrMg2Co2 trigonal bipyramids. The corner-sharing octahedral tilt angles range from 28-72°. In the third O site, O(3) is bonded in a 2-coordinate geometry to two equivalent Ba(1), two equivalent Pr(1), and two equivalent Co(2) atoms. In the fourth O site, O(4) is bonded to two equivalent Ba(1), two equivalent Pr(1), and two equivalent Co(2) atoms to form distorted OBa2Pr2Co2 octahedra that share corners with two equivalent O(4)Ba2Pr2Co2 octahedra, corners with four equivalent O(6)Ba4MgCo octahedra, corners with two equivalent O(2)PrMg2Co2 trigonal bipyramids, edges with two equivalent O(4)Ba2Pr2Co2 octahedra, and faces with two equivalent O(6)Ba4MgCo octahedra. The corner-sharing octahedral tilt angles range from 14-60°. In the fifth O site, O(5) is bonded in a 6-coordinate geometry to four equivalent Pr(1), one Co(1), and one Co(2) atom. In the sixth O site, O(6) is bonded to four equivalent Ba(1), one Mg(1), and one Co(2) atom to form distorted OBa4MgCo octahedra that share corners with four equivalent O(4)Ba2Pr2Co2 octahedra, corners with four equivalent O(6)Ba4MgCo octahedra, corners with two equivalent O(2)PrMg2Co2 trigonal bipyramids, edges with four equivalent O(6)Ba4MgCo octahedra, and faces with two equivalent O(4)Ba2Pr2Co2 octahedra. The corner-sharing octahedral tilt angles range from 9-60°. is represented by the Crystallographic Information File (CIF) [CIF]
data_BaPrMg(CoO3)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.742
_cell_length_b   4.028
_cell_length_c   9.765
_cell_angle_alpha   101.843
_cell_angle_beta   83.489
_cell_angle_gamma   89.656
_symmetry_Int_Tables_number   1
_cell_volume   143.036
_cell_formula_units_Z   1
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
  Ba  Ba0  1  0.151  0.827  0.055  1.0
  Pr  Pr1  1  0.064  0.036  0.447  1.0
  Mg  Mg2  1  0.738  0.212  0.819  1.0
  Co  Co3  1  0.299  0.658  0.694  1.0
  Co  Co4  1  0.598  0.430  0.255  1.0
  O  O5  1  0.773  0.697  0.792  1.0
  O  O6  1  0.265  0.155  0.711  1.0
  O  O7  1  0.088  0.443  0.284  1.0
  O  O8  1  0.594  0.942  0.281  1.0
  O  O9  1  0.506  0.532  0.496  1.0
  O  O10  1  0.658  0.318  0.033  1.0
[/CIF]
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The compound described by BaMgPr(CoO3)2 crystallizes in the triclinic P1 space group. Ba(1) is bonded in a 10-coordinate geometry to two equivalent O(1), two equivalent O(3), two equivalent O(4), and four equivalent O(6) atoms. Mg(1) is bonded to one O(6), two equivalent O(1), and two equivalent O(2) atoms to form MgO5 trigonal bipyramids that share  a cornercorner with one Co(2)O6 octahedra, corners with four equivalent Mg(1)O5 trigonal bipyramids, and edges with four equivalent Co(1)O5 trigonal bipyramids. The corner-sharing octahedral tilt angles are 2°. Pr(1) is bonded in a 9-coordinate geometry to one O(2), two equivalent O(3), two equivalent O(4), and four equivalent O(5) atoms. There are two inequivalent Co sites. In the first Co site, Co(1) is bonded to one O(5), two equivalent O(1), and two equivalent O(2) atoms to form CoO5 trigonal bipyramids that share  a cornercorner with one Co(2)O6 octahedra, corners with four equivalent Co(1)O5 trigonal bipyramids, and edges with four equivalent Mg(1)O5 trigonal bipyramids. The corner-sharing octahedral tilt angles are 15°. In the second Co site, Co(2) is bonded to one O(5), one O(6), two equivalent O(3), and two equivalent O(4) atoms to form distorted CoO6 octahedra that share corners with four equivalent Co(2)O6 octahedra,  a cornercorner with one Mg(1)O5 trigonal bipyramid, and  a cornercorner with one Co(1)O5 trigonal bipyramid. The corner-sharing octahedral tilt angles range from 14-16°. There are six inequivalent O sites. In the first O site, O(1) is bonded in a distorted see-saw-like geometry to two equivalent Ba(1), two equivalent Mg(1), and two equivalent Co(1) atoms. In the second O site, O(2) is bonded to two equivalent Mg(1), one Pr(1), and two equivalent Co(1) atoms to form distorted OPrMg2Co2 trigonal bipyramids that share corners with two equivalent O(4)Ba2Pr2Co2 octahedra, corners with two equivalent O(6)Ba4MgCo octahedra, and corners with four equivalent O(2)PrMg2Co2 trigonal bipyramids. The corner-sharing octahedral tilt angles range from 28-72°. In the third O site, O(3) is bonded in a 2-coordinate geometry to two equivalent Ba(1), two equivalent Pr(1), and two equivalent Co(2) atoms. In the fourth O site, O(4) is bonded to two equivalent Ba(1), two equivalent Pr(1), and two equivalent Co(2) atoms to form distorted OBa2Pr2Co2 octahedra that share corners with two equivalent O(4)Ba2Pr2Co2 octahedra, corners with four equivalent O(6)Ba4MgCo octahedra, corners with two equivalent O(2)PrMg2Co2 trigonal bipyramids, edges with two equivalent O(4)Ba2Pr2Co2 octahedra, and faces with two equivalent O(6)Ba4MgCo octahedra. The corner-sharing octahedral tilt angles range from 14-60°. In the fifth O site, O(5) is bonded in a 6-coordinate geometry to four equivalent Pr(1), one Co(1), and one Co(2) atom. In the sixth O site, O(6) is bonded to four equivalent Ba(1), one Mg(1), and one Co(2) atom to form distorted OBa4MgCo octahedra that share corners with four equivalent O(4)Ba2Pr2Co2 octahedra, corners with four equivalent O(6)Ba4MgCo octahedra, corners with two equivalent O(2)PrMg2Co2 trigonal bipyramids, edges with four equivalent O(6)Ba4MgCo octahedra, and faces with two equivalent O(4)Ba2Pr2Co2 octahedra. The corner-sharing octahedral tilt angles range from 9-60°. is represented by the Crystallographic Information File (CIF) [CIF]
data_BaPrMg(CoO3)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.742
_cell_length_b   4.028
_cell_length_c   9.765
_cell_angle_alpha   101.843
_cell_angle_beta   83.489
_cell_angle_gamma   89.656
_symmetry_Int_Tables_number   1
_cell_volume   143.036
_cell_formula_units_Z   1
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
  Ba  Ba0  1  0.151  0.827  0.055  1.0
  Pr  Pr1  1  0.064  0.036  0.447  1.0
  Mg  Mg2  1  0.738  0.212  0.819  1.0
  Co  Co3  1  0.299  0.658  0.694  1.0
  Co  Co4  1  0.598  0.430  0.255  1.0
  O  O5  1  0.773  0.697  0.792  1.0
  O  O6  1  0.265  0.155  0.711  1.0
  O  O7  1  0.088  0.443  0.284  1.0
  O  O8  1  0.594  0.942  0.281  1.0
  O  O9  1  0.506  0.532  0.496  1.0
  O  O10  1  0.658  0.318  0.033  1.0
[/CIF]
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