The structure described by Ca2BePrO5 crystallizes in the orthorhombic Pnma space group. Ca(1) is bonded in a 9-coordinate geometry to two equivalent O(1), two equivalent O(2), two equivalent O(3), and three equivalent O(4) atoms. Be(1) is bonded in a tetrahedral geometry to one O(1), one O(3), and two equivalent O(4) atoms. Pr(1) is bonded in a 8-coordinate geometry to one O(1), one O(3), two equivalent O(2), and four equivalent O(4) atoms. There are four inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to four equivalent Ca(1), one Be(1), and one Pr(1) atom. In the second O site, O(2) is bonded to four equivalent Ca(1) and two equivalent Pr(1) atoms to form distorted corner-sharing OCa4Pr2 octahedra. The corner-sharing octahedral tilt angles range from 34-44°. In the third O site, O(3) is bonded in a distorted single-bond geometry to four equivalent Ca(1), one Be(1), and one Pr(1) atom. In the fourth O site, O(4) is bonded in a 1-coordinate geometry to three equivalent Ca(1), one Be(1), and two equivalent Pr(1) atoms. is represented by the CIF file [CIF]
data_Ca2PrBeO5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.487
_cell_length_b   7.275
_cell_length_c   9.410
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   444.095
_cell_formula_units_Z   4
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
  Ca  Ca0  1  0.580  0.528  0.826  1.0
  Ca  Ca1  1  0.420  0.472  0.174  1.0
  Ca  Ca2  1  0.080  0.472  0.674  1.0
  Ca  Ca3  1  0.420  0.028  0.174  1.0
  Ca  Ca4  1  0.920  0.528  0.326  1.0
  Ca  Ca5  1  0.580  0.972  0.826  1.0
  Ca  Ca6  1  0.920  0.972  0.326  1.0
  Ca  Ca7  1  0.080  0.028  0.674  1.0
  Pr  Pr8  1  0.099  0.750  0.972  1.0
  Pr  Pr9  1  0.901  0.250  0.028  1.0
  Pr  Pr10  1  0.599  0.250  0.528  1.0
  Pr  Pr11  1  0.401  0.750  0.472  1.0
  Be  Be12  1  0.811  0.750  0.606  1.0
  Be  Be13  1  0.189  0.250  0.394  1.0
  Be  Be14  1  0.311  0.250  0.894  1.0
  Be  Be15  1  0.689  0.750  0.106  1.0
  O  O16  1  0.862  0.750  0.777  1.0
  O  O17  1  0.138  0.250  0.223  1.0
  O  O18  1  0.362  0.250  0.723  1.0
  O  O19  1  0.638  0.750  0.277  1.0
  O  O20  1  0.329  0.750  0.730  1.0
  O  O21  1  0.671  0.250  0.270  1.0
  O  O22  1  0.829  0.250  0.770  1.0
  O  O23  1  0.171  0.750  0.230  1.0
  O  O24  1  0.025  0.750  0.513  1.0
  O  O25  1  0.975  0.250  0.487  1.0
  O  O26  1  0.525  0.250  0.987  1.0
  O  O27  1  0.475  0.750  0.013  1.0
  O  O28  1  0.689  0.562  0.572  1.0
  O  O29  1  0.311  0.438  0.428  1.0
  O  O30  1  0.189  0.438  0.928  1.0
  O  O31  1  0.311  0.062  0.428  1.0
  O  O32  1  0.811  0.562  0.072  1.0
  O  O33  1  0.689  0.938  0.572  1.0
  O  O34  1  0.811  0.938  0.072  1.0
  O  O35  1  0.189  0.062  0.928  1.0
[/CIF]
.
The structure described by Ca2BePrO5 crystallizes in the orthorhombic Pnma space group. Ca(1) is bonded in a 9-coordinate geometry to two equivalent O(1), two equivalent O(2), two equivalent O(3), and three equivalent O(4) atoms. Be(1) is bonded in a tetrahedral geometry to one O(1), one O(3), and two equivalent O(4) atoms. Pr(1) is bonded in a 8-coordinate geometry to one O(1), one O(3), two equivalent O(2), and four equivalent O(4) atoms. There are four inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to four equivalent Ca(1), one Be(1), and one Pr(1) atom. In the second O site, O(2) is bonded to four equivalent Ca(1) and two equivalent Pr(1) atoms to form distorted corner-sharing OCa4Pr2 octahedra. The corner-sharing octahedral tilt angles range from 34-44°. In the third O site, O(3) is bonded in a distorted single-bond geometry to four equivalent Ca(1), one Be(1), and one Pr(1) atom. In the fourth O site, O(4) is bonded in a 1-coordinate geometry to three equivalent Ca(1), one Be(1), and two equivalent Pr(1) atoms. is represented by the CIF file [CIF]
data_Ca2PrBeO5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.487
_cell_length_b   7.275
_cell_length_c   9.410
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   444.095
_cell_formula_units_Z   4
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
  Ca  Ca0  1  0.580  0.528  0.826  1.0
  Ca  Ca1  1  0.420  0.472  0.174  1.0
  Ca  Ca2  1  0.080  0.472  0.674  1.0
  Ca  Ca3  1  0.420  0.028  0.174  1.0
  Ca  Ca4  1  0.920  0.528  0.326  1.0
  Ca  Ca5  1  0.580  0.972  0.826  1.0
  Ca  Ca6  1  0.920  0.972  0.326  1.0
  Ca  Ca7  1  0.080  0.028  0.674  1.0
  Pr  Pr8  1  0.099  0.750  0.972  1.0
  Pr  Pr9  1  0.901  0.250  0.028  1.0
  Pr  Pr10  1  0.599  0.250  0.528  1.0
  Pr  Pr11  1  0.401  0.750  0.472  1.0
  Be  Be12  1  0.811  0.750  0.606  1.0
  Be  Be13  1  0.189  0.250  0.394  1.0
  Be  Be14  1  0.311  0.250  0.894  1.0
  Be  Be15  1  0.689  0.750  0.106  1.0
  O  O16  1  0.862  0.750  0.777  1.0
  O  O17  1  0.138  0.250  0.223  1.0
  O  O18  1  0.362  0.250  0.723  1.0
  O  O19  1  0.638  0.750  0.277  1.0
  O  O20  1  0.329  0.750  0.730  1.0
  O  O21  1  0.671  0.250  0.270  1.0
  O  O22  1  0.829  0.250  0.770  1.0
  O  O23  1  0.171  0.750  0.230  1.0
  O  O24  1  0.025  0.750  0.513  1.0
  O  O25  1  0.975  0.250  0.487  1.0
  O  O26  1  0.525  0.250  0.987  1.0
  O  O27  1  0.475  0.750  0.013  1.0
  O  O28  1  0.689  0.562  0.572  1.0
  O  O29  1  0.311  0.438  0.428  1.0
  O  O30  1  0.189  0.438  0.928  1.0
  O  O31  1  0.311  0.062  0.428  1.0
  O  O32  1  0.811  0.562  0.072  1.0
  O  O33  1  0.689  0.938  0.572  1.0
  O  O34  1  0.811  0.938  0.072  1.0
  O  O35  1  0.189  0.062  0.928  1.0
[/CIF]
.