The crystal structure described by Gd(IO3)3 crystallizes in the monoclinic P2_1/c space group. Gd(1) is bonded in a 9-coordinate geometry to one O(1), one O(4), one O(6), one O(7), one O(9), two equivalent O(2), and two equivalent O(8) atoms. There are nine inequivalent O sites. In the first O site, O(5) is bonded in a distorted single-bond geometry to one I(2) atom. In the second O site, O(6) is bonded in a bent 120 degrees geometry to one Gd(1) and one I(2) atom. In the third O site, O(7) is bonded in a bent 120 degrees geometry to one Gd(1) and one I(3) atom. In the fourth O site, O(8) is bonded in a distorted bent 150 degrees geometry to two equivalent Gd(1) and one I(3) atom. In the fifth O site, O(1) is bonded in a distorted water-like geometry to one Gd(1) and one I(1) atom. In the sixth O site, O(9) is bonded in a 2-coordinate geometry to one Gd(1) and one I(3) atom. In the seventh O site, O(2) is bonded in a 3-coordinate geometry to two equivalent Gd(1) and one I(1) atom. In the eighth O site, O(3) is bonded in a 3-coordinate geometry to one I(3) and two equivalent I(1) atoms. In the ninth O site, O(4) is bonded in a bent 120 degrees geometry to one Gd(1) and one I(2) atom. There are three inequivalent I sites. In the first I site, I(1) is bonded in a 3-coordinate geometry to one O(1), one O(2), and two equivalent O(3) atoms. In the second I site, I(2) is bonded in a 3-coordinate geometry to one O(4), one O(5), and one O(6) atom. In the third I site, I(3) is bonded in a 3-coordinate geometry to one O(3), one O(7), one O(8), and one O(9) atom. is represented by the CIF file [CIF]
data_Gd(IO3)3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.923
_cell_length_b   8.747
_cell_length_c   16.565
_cell_angle_alpha   65.401
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   780.399
_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
  Gd  Gd0  1  0.224  0.358  0.601  1.0
  Gd  Gd1  1  0.724  0.642  0.899  1.0
  Gd  Gd2  1  0.776  0.642  0.399  1.0
  Gd  Gd3  1  0.276  0.358  0.101  1.0
  I  I4  1  0.854  0.142  0.522  1.0
  I  I5  1  0.354  0.858  0.978  1.0
  I  I6  1  0.146  0.858  0.478  1.0
  I  I7  1  0.646  0.142  0.022  1.0
  I  I8  1  0.904  0.082  0.800  1.0
  I  I9  1  0.404  0.918  0.700  1.0
  I  I10  1  0.096  0.918  0.200  1.0
  I  I11  1  0.596  0.082  0.300  1.0
  I  I12  1  0.687  0.573  0.648  1.0
  I  I13  1  0.187  0.427  0.852  1.0
  I  I14  1  0.313  0.427  0.352  1.0
  I  I15  1  0.813  0.573  0.148  1.0
  O  O16  1  0.028  0.102  0.619  1.0
  O  O17  1  0.528  0.898  0.881  1.0
  O  O18  1  0.972  0.898  0.381  1.0
  O  O19  1  0.472  0.102  0.119  1.0
  O  O20  1  0.108  0.631  0.511  1.0
  O  O21  1  0.608  0.369  0.989  1.0
  O  O22  1  0.892  0.369  0.489  1.0
  O  O23  1  0.392  0.631  0.011  1.0
  O  O24  1  0.079  0.142  0.445  1.0
  O  O25  1  0.579  0.858  0.055  1.0
  O  O26  1  0.921  0.858  0.555  1.0
  O  O27  1  0.421  0.142  0.945  1.0
  O  O28  1  0.182  0.156  0.755  1.0
  O  O29  1  0.682  0.844  0.745  1.0
  O  O30  1  0.818  0.844  0.245  1.0
  O  O31  1  0.318  0.156  0.255  1.0
  O  O32  1  0.910  0.163  0.885  1.0
  O  O33  1  0.410  0.837  0.615  1.0
  O  O34  1  0.090  0.837  0.115  1.0
  O  O35  1  0.590  0.163  0.385  1.0
  O  O36  1  0.995  0.866  0.866  1.0
  O  O37  1  0.495  0.134  0.634  1.0
  O  O38  1  0.005  0.134  0.134  1.0
  O  O39  1  0.505  0.866  0.366  1.0
  O  O40  1  0.443  0.440  0.697  1.0
  O  O41  1  0.943  0.560  0.803  1.0
  O  O42  1  0.557  0.560  0.303  1.0
  O  O43  1  0.057  0.440  0.197  1.0
  O  O44  1  0.603  0.604  0.537  1.0
  O  O45  1  0.103  0.396  0.963  1.0
  O  O46  1  0.397  0.396  0.463  1.0
  O  O47  1  0.897  0.604  0.037  1.0
  O  O48  1  0.892  0.404  0.670  1.0
  O  O49  1  0.392  0.596  0.830  1.0
  O  O50  1  0.108  0.596  0.330  1.0
  O  O51  1  0.608  0.404  0.170  1.0
[/CIF]
.
The crystal structure described by Gd(IO3)3 crystallizes in the monoclinic P2_1/c space group. Gd(1) is bonded in a 9-coordinate geometry to one O(1), one O(4), one O(6), one O(7), one O(9), two equivalent O(2), and two equivalent O(8) atoms. There are nine inequivalent O sites. In the first O site, O(5) is bonded in a distorted single-bond geometry to one I(2) atom. In the second O site, O(6) is bonded in a bent 120 degrees geometry to one Gd(1) and one I(2) atom. In the third O site, O(7) is bonded in a bent 120 degrees geometry to one Gd(1) and one I(3) atom. In the fourth O site, O(8) is bonded in a distorted bent 150 degrees geometry to two equivalent Gd(1) and one I(3) atom. In the fifth O site, O(1) is bonded in a distorted water-like geometry to one Gd(1) and one I(1) atom. In the sixth O site, O(9) is bonded in a 2-coordinate geometry to one Gd(1) and one I(3) atom. In the seventh O site, O(2) is bonded in a 3-coordinate geometry to two equivalent Gd(1) and one I(1) atom. In the eighth O site, O(3) is bonded in a 3-coordinate geometry to one I(3) and two equivalent I(1) atoms. In the ninth O site, O(4) is bonded in a bent 120 degrees geometry to one Gd(1) and one I(2) atom. There are three inequivalent I sites. In the first I site, I(1) is bonded in a 3-coordinate geometry to one O(1), one O(2), and two equivalent O(3) atoms. In the second I site, I(2) is bonded in a 3-coordinate geometry to one O(4), one O(5), and one O(6) atom. In the third I site, I(3) is bonded in a 3-coordinate geometry to one O(3), one O(7), one O(8), and one O(9) atom. is represented by the CIF file [CIF]
data_Gd(IO3)3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.923
_cell_length_b   8.747
_cell_length_c   16.565
_cell_angle_alpha   65.401
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   780.399
_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
  Gd  Gd0  1  0.224  0.358  0.601  1.0
  Gd  Gd1  1  0.724  0.642  0.899  1.0
  Gd  Gd2  1  0.776  0.642  0.399  1.0
  Gd  Gd3  1  0.276  0.358  0.101  1.0
  I  I4  1  0.854  0.142  0.522  1.0
  I  I5  1  0.354  0.858  0.978  1.0
  I  I6  1  0.146  0.858  0.478  1.0
  I  I7  1  0.646  0.142  0.022  1.0
  I  I8  1  0.904  0.082  0.800  1.0
  I  I9  1  0.404  0.918  0.700  1.0
  I  I10  1  0.096  0.918  0.200  1.0
  I  I11  1  0.596  0.082  0.300  1.0
  I  I12  1  0.687  0.573  0.648  1.0
  I  I13  1  0.187  0.427  0.852  1.0
  I  I14  1  0.313  0.427  0.352  1.0
  I  I15  1  0.813  0.573  0.148  1.0
  O  O16  1  0.028  0.102  0.619  1.0
  O  O17  1  0.528  0.898  0.881  1.0
  O  O18  1  0.972  0.898  0.381  1.0
  O  O19  1  0.472  0.102  0.119  1.0
  O  O20  1  0.108  0.631  0.511  1.0
  O  O21  1  0.608  0.369  0.989  1.0
  O  O22  1  0.892  0.369  0.489  1.0
  O  O23  1  0.392  0.631  0.011  1.0
  O  O24  1  0.079  0.142  0.445  1.0
  O  O25  1  0.579  0.858  0.055  1.0
  O  O26  1  0.921  0.858  0.555  1.0
  O  O27  1  0.421  0.142  0.945  1.0
  O  O28  1  0.182  0.156  0.755  1.0
  O  O29  1  0.682  0.844  0.745  1.0
  O  O30  1  0.818  0.844  0.245  1.0
  O  O31  1  0.318  0.156  0.255  1.0
  O  O32  1  0.910  0.163  0.885  1.0
  O  O33  1  0.410  0.837  0.615  1.0
  O  O34  1  0.090  0.837  0.115  1.0
  O  O35  1  0.590  0.163  0.385  1.0
  O  O36  1  0.995  0.866  0.866  1.0
  O  O37  1  0.495  0.134  0.634  1.0
  O  O38  1  0.005  0.134  0.134  1.0
  O  O39  1  0.505  0.866  0.366  1.0
  O  O40  1  0.443  0.440  0.697  1.0
  O  O41  1  0.943  0.560  0.803  1.0
  O  O42  1  0.557  0.560  0.303  1.0
  O  O43  1  0.057  0.440  0.197  1.0
  O  O44  1  0.603  0.604  0.537  1.0
  O  O45  1  0.103  0.396  0.963  1.0
  O  O46  1  0.397  0.396  0.463  1.0
  O  O47  1  0.897  0.604  0.037  1.0
  O  O48  1  0.892  0.404  0.670  1.0
  O  O49  1  0.392  0.596  0.830  1.0
  O  O50  1  0.108  0.596  0.330  1.0
  O  O51  1  0.608  0.404  0.170  1.0
[/CIF]
.