The structure described by BaGd2ZnO5 crystallizes in the orthorhombic Pnma space group. Ba(1) is bonded in a 11-coordinate geometry to three equivalent O(1), four equivalent O(2), and four equivalent O(3) atoms. There are two inequivalent Gd sites. In the first Gd site, Gd(1) is bonded to one O(1), two equivalent O(2), and four equivalent O(3) atoms to form distorted GdO7 pentagonal bipyramids that share corners with five equivalent Zn(1)O5 trigonal bipyramids, edges with two equivalent Gd(1)O7 pentagonal bipyramids, and  an edgeedge with one Zn(1)O5 trigonal bipyramid. In the second Gd site, Gd(2) is bonded in a 7-coordinate geometry to one O(1), two equivalent O(3), and four equivalent O(2) atoms. Zn(1) is bonded to one O(1), two equivalent O(2), and two equivalent O(3) atoms to form distorted ZnO5 trigonal bipyramids that share corners with five equivalent Gd(1)O7 pentagonal bipyramids and  an edgeedge with one Gd(1)O7 pentagonal bipyramid. There are three inequivalent O sites. In the first O site, O(1) is bonded to three equivalent Ba(1), one Gd(1), one Gd(2), and one Zn(1) atom to form a mixture of distorted corner and edge-sharing OBa3Gd2Zn octahedra. The corner-sharing octahedral tilt angles are 2°. In the second O site, O(2) is bonded in a 6-coordinate geometry to two equivalent Ba(1), one Gd(1), two equivalent Gd(2), and one Zn(1) atom. In the third O site, O(3) is bonded in a 4-coordinate geometry to two equivalent Ba(1), one Gd(2), two equivalent Gd(1), and one Zn(1) atom. is represented by the CIF card [CIF]
data_BaGd2ZnO5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.820
_cell_length_b   7.235
_cell_length_c   12.586
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   529.955
_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
  Ba  Ba0  1  0.750  0.077  0.101  1.0
  Ba  Ba1  1  0.750  0.423  0.601  1.0
  Ba  Ba2  1  0.250  0.577  0.399  1.0
  Ba  Ba3  1  0.250  0.923  0.899  1.0
  Gd  Gd4  1  0.250  0.398  0.074  1.0
  Gd  Gd5  1  0.750  0.618  0.208  1.0
  Gd  Gd6  1  0.750  0.882  0.708  1.0
  Gd  Gd7  1  0.250  0.118  0.292  1.0
  Gd  Gd8  1  0.750  0.602  0.926  1.0
  Gd  Gd9  1  0.750  0.898  0.426  1.0
  Gd  Gd10  1  0.250  0.102  0.574  1.0
  Gd  Gd11  1  0.250  0.382  0.792  1.0
  Zn  Zn12  1  0.250  0.808  0.150  1.0
  Zn  Zn13  1  0.750  0.192  0.850  1.0
  Zn  Zn14  1  0.750  0.308  0.350  1.0
  Zn  Zn15  1  0.250  0.692  0.650  1.0
  O  O16  1  0.250  0.429  0.599  1.0
  O  O17  1  0.750  0.571  0.401  1.0
  O  O18  1  0.750  0.929  0.901  1.0
  O  O19  1  0.250  0.071  0.099  1.0
  O  O20  1  0.002  0.855  0.275  1.0
  O  O21  1  0.502  0.145  0.725  1.0
  O  O22  1  0.998  0.355  0.225  1.0
  O  O23  1  0.498  0.645  0.775  1.0
  O  O24  1  0.998  0.145  0.725  1.0
  O  O25  1  0.498  0.855  0.275  1.0
  O  O26  1  0.002  0.645  0.775  1.0
  O  O27  1  0.502  0.355  0.225  1.0
  O  O28  1  0.496  0.665  0.066  1.0
  O  O29  1  0.996  0.335  0.934  1.0
  O  O30  1  0.504  0.165  0.434  1.0
  O  O31  1  0.004  0.835  0.566  1.0
  O  O32  1  0.996  0.165  0.434  1.0
  O  O33  1  0.496  0.835  0.566  1.0
  O  O34  1  0.004  0.665  0.066  1.0
  O  O35  1  0.504  0.335  0.934  1.0
[/CIF]
.
The structure described by BaGd2ZnO5 crystallizes in the orthorhombic Pnma space group. Ba(1) is bonded in a 11-coordinate geometry to three equivalent O(1), four equivalent O(2), and four equivalent O(3) atoms. There are two inequivalent Gd sites. In the first Gd site, Gd(1) is bonded to one O(1), two equivalent O(2), and four equivalent O(3) atoms to form distorted GdO7 pentagonal bipyramids that share corners with five equivalent Zn(1)O5 trigonal bipyramids, edges with two equivalent Gd(1)O7 pentagonal bipyramids, and  an edgeedge with one Zn(1)O5 trigonal bipyramid. In the second Gd site, Gd(2) is bonded in a 7-coordinate geometry to one O(1), two equivalent O(3), and four equivalent O(2) atoms. Zn(1) is bonded to one O(1), two equivalent O(2), and two equivalent O(3) atoms to form distorted ZnO5 trigonal bipyramids that share corners with five equivalent Gd(1)O7 pentagonal bipyramids and  an edgeedge with one Gd(1)O7 pentagonal bipyramid. There are three inequivalent O sites. In the first O site, O(1) is bonded to three equivalent Ba(1), one Gd(1), one Gd(2), and one Zn(1) atom to form a mixture of distorted corner and edge-sharing OBa3Gd2Zn octahedra. The corner-sharing octahedral tilt angles are 2°. In the second O site, O(2) is bonded in a 6-coordinate geometry to two equivalent Ba(1), one Gd(1), two equivalent Gd(2), and one Zn(1) atom. In the third O site, O(3) is bonded in a 4-coordinate geometry to two equivalent Ba(1), one Gd(2), two equivalent Gd(1), and one Zn(1) atom. is represented by the CIF card [CIF]
data_BaGd2ZnO5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.820
_cell_length_b   7.235
_cell_length_c   12.586
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   529.955
_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
  Ba  Ba0  1  0.750  0.077  0.101  1.0
  Ba  Ba1  1  0.750  0.423  0.601  1.0
  Ba  Ba2  1  0.250  0.577  0.399  1.0
  Ba  Ba3  1  0.250  0.923  0.899  1.0
  Gd  Gd4  1  0.250  0.398  0.074  1.0
  Gd  Gd5  1  0.750  0.618  0.208  1.0
  Gd  Gd6  1  0.750  0.882  0.708  1.0
  Gd  Gd7  1  0.250  0.118  0.292  1.0
  Gd  Gd8  1  0.750  0.602  0.926  1.0
  Gd  Gd9  1  0.750  0.898  0.426  1.0
  Gd  Gd10  1  0.250  0.102  0.574  1.0
  Gd  Gd11  1  0.250  0.382  0.792  1.0
  Zn  Zn12  1  0.250  0.808  0.150  1.0
  Zn  Zn13  1  0.750  0.192  0.850  1.0
  Zn  Zn14  1  0.750  0.308  0.350  1.0
  Zn  Zn15  1  0.250  0.692  0.650  1.0
  O  O16  1  0.250  0.429  0.599  1.0
  O  O17  1  0.750  0.571  0.401  1.0
  O  O18  1  0.750  0.929  0.901  1.0
  O  O19  1  0.250  0.071  0.099  1.0
  O  O20  1  0.002  0.855  0.275  1.0
  O  O21  1  0.502  0.145  0.725  1.0
  O  O22  1  0.998  0.355  0.225  1.0
  O  O23  1  0.498  0.645  0.775  1.0
  O  O24  1  0.998  0.145  0.725  1.0
  O  O25  1  0.498  0.855  0.275  1.0
  O  O26  1  0.002  0.645  0.775  1.0
  O  O27  1  0.502  0.355  0.225  1.0
  O  O28  1  0.496  0.665  0.066  1.0
  O  O29  1  0.996  0.335  0.934  1.0
  O  O30  1  0.504  0.165  0.434  1.0
  O  O31  1  0.004  0.835  0.566  1.0
  O  O32  1  0.996  0.165  0.434  1.0
  O  O33  1  0.496  0.835  0.566  1.0
  O  O34  1  0.004  0.665  0.066  1.0
  O  O35  1  0.504  0.335  0.934  1.0
[/CIF]
.