The crystal structure described by Gd5(AsO6)2 crystallizes in the monoclinic C2/m space group. There are three inequivalent Gd sites. In the first Gd site, Gd(1) is bonded to one O(4), two equivalent O(2), and four equivalent O(3) atoms to form distorted GdO7 pentagonal bipyramids that share corners with two equivalent Gd(3)O6 octahedra,  a cornercorner with one Gd(2)O7 pentagonal bipyramid,  an edgeedge with one Gd(3)O6 octahedra, edges with two equivalent As(1)O6 octahedra, edges with two equivalent Gd(1)O7 pentagonal bipyramids, and edges with four equivalent Gd(2)O7 pentagonal bipyramids. The corner-sharing octahedral tilt angles are 55°. In the second Gd site, Gd(2) is bonded to one O(4), two equivalent O(3), and four equivalent O(2) atoms to form distorted GdO7 pentagonal bipyramids that share corners with two equivalent Gd(3)O6 octahedra, corners with two equivalent As(1)O6 octahedra,  a cornercorner with one Gd(1)O7 pentagonal bipyramid, edges with two equivalent As(1)O6 octahedra, edges with two equivalent Gd(2)O7 pentagonal bipyramids, and edges with four equivalent Gd(1)O7 pentagonal bipyramids. The corner-sharing octahedral tilt angles range from 46-55°. In the third Gd site, Gd(3) is bonded to two equivalent O(1) and four equivalent O(3) atoms to form GdO6 octahedra that share corners with four equivalent As(1)O6 octahedra, corners with four equivalent Gd(1)O7 pentagonal bipyramids, corners with four equivalent Gd(2)O7 pentagonal bipyramids, and edges with two equivalent Gd(1)O7 pentagonal bipyramids. The corner-sharing octahedral tilt angles are 49°. As(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(4) atoms to form AsO6 octahedra that share corners with two equivalent Gd(3)O6 octahedra, corners with two equivalent Gd(2)O7 pentagonal bipyramids, edges with two equivalent As(1)O6 octahedra, edges with two equivalent Gd(1)O7 pentagonal bipyramids, and edges with two equivalent Gd(2)O7 pentagonal bipyramids. The corner-sharing octahedral tilt angles are 49°. There are four inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal planar geometry to one Gd(3) and two equivalent As(1) atoms. In the second O site, O(2) is bonded to one Gd(1), two equivalent Gd(2), and one As(1) atom to form distorted OGd3As tetrahedra that share corners with four equivalent O(2)Gd3As tetrahedra, corners with six equivalent O(3)Gd4 tetrahedra,  a cornercorner with one O(4)Gd2As2 trigonal pyramid,  an edgeedge with one O(3)Gd4 tetrahedra, edges with two equivalent O(2)Gd3As tetrahedra, and edges with two equivalent O(4)Gd2As2 trigonal pyramids. In the third O site, O(3) is bonded to one Gd(2), one Gd(3), and two equivalent Gd(1) atoms to form OGd4 tetrahedra that share corners with four equivalent O(3)Gd4 tetrahedra, corners with six equivalent O(2)Gd3As tetrahedra, corners with three equivalent O(4)Gd2As2 trigonal pyramids,  an edgeedge with one O(2)Gd3As tetrahedra, and edges with three equivalent O(3)Gd4 tetrahedra. In the fourth O site, O(4) is bonded to one Gd(1), one Gd(2), and two equivalent As(1) atoms to form distorted OGd2As2 trigonal pyramids that share corners with two equivalent O(2)Gd3As tetrahedra, corners with six equivalent O(3)Gd4 tetrahedra, edges with four equivalent O(2)Gd3As tetrahedra, and  an edgeedge with one O(4)Gd2As2 trigonal pyramid. is represented by the CIF card [CIF]
data_Gd5(AsO6)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.897
_cell_length_b   6.897
_cell_length_c   7.379
_cell_angle_alpha   74.465
_cell_angle_beta   74.465
_cell_angle_gamma   51.114
_symmetry_Int_Tables_number   1
_cell_volume   260.898
_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
  Gd  Gd0  1  0.697  0.697  0.640  1.0
  Gd  Gd1  1  0.696  0.696  0.166  1.0
  Gd  Gd2  1  0.000  0.000  0.500  1.0
  Gd  Gd3  1  0.304  0.304  0.834  1.0
  Gd  Gd4  1  0.303  0.303  0.360  1.0
  As  As5  1  0.243  0.757  0.000  1.0
  As  As6  1  0.757  0.243  0.000  1.0
  O  O7  1  0.999  0.999  0.173  1.0
  O  O8  1  0.896  0.420  0.921  1.0
  O  O9  1  0.420  0.896  0.921  1.0
  O  O10  1  0.904  0.402  0.424  1.0
  O  O11  1  0.402  0.904  0.424  1.0
  O  O12  1  0.500  0.500  0.824  1.0
  O  O13  1  0.500  0.500  0.176  1.0
  O  O14  1  0.096  0.598  0.576  1.0
  O  O15  1  0.598  0.096  0.576  1.0
  O  O16  1  0.104  0.580  0.079  1.0
  O  O17  1  0.580  0.104  0.079  1.0
  O  O18  1  0.001  0.001  0.827  1.0
[/CIF]
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The crystal structure described by Gd5(AsO6)2 crystallizes in the monoclinic C2/m space group. There are three inequivalent Gd sites. In the first Gd site, Gd(1) is bonded to one O(4), two equivalent O(2), and four equivalent O(3) atoms to form distorted GdO7 pentagonal bipyramids that share corners with two equivalent Gd(3)O6 octahedra,  a cornercorner with one Gd(2)O7 pentagonal bipyramid,  an edgeedge with one Gd(3)O6 octahedra, edges with two equivalent As(1)O6 octahedra, edges with two equivalent Gd(1)O7 pentagonal bipyramids, and edges with four equivalent Gd(2)O7 pentagonal bipyramids. The corner-sharing octahedral tilt angles are 55°. In the second Gd site, Gd(2) is bonded to one O(4), two equivalent O(3), and four equivalent O(2) atoms to form distorted GdO7 pentagonal bipyramids that share corners with two equivalent Gd(3)O6 octahedra, corners with two equivalent As(1)O6 octahedra,  a cornercorner with one Gd(1)O7 pentagonal bipyramid, edges with two equivalent As(1)O6 octahedra, edges with two equivalent Gd(2)O7 pentagonal bipyramids, and edges with four equivalent Gd(1)O7 pentagonal bipyramids. The corner-sharing octahedral tilt angles range from 46-55°. In the third Gd site, Gd(3) is bonded to two equivalent O(1) and four equivalent O(3) atoms to form GdO6 octahedra that share corners with four equivalent As(1)O6 octahedra, corners with four equivalent Gd(1)O7 pentagonal bipyramids, corners with four equivalent Gd(2)O7 pentagonal bipyramids, and edges with two equivalent Gd(1)O7 pentagonal bipyramids. The corner-sharing octahedral tilt angles are 49°. As(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(4) atoms to form AsO6 octahedra that share corners with two equivalent Gd(3)O6 octahedra, corners with two equivalent Gd(2)O7 pentagonal bipyramids, edges with two equivalent As(1)O6 octahedra, edges with two equivalent Gd(1)O7 pentagonal bipyramids, and edges with two equivalent Gd(2)O7 pentagonal bipyramids. The corner-sharing octahedral tilt angles are 49°. There are four inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal planar geometry to one Gd(3) and two equivalent As(1) atoms. In the second O site, O(2) is bonded to one Gd(1), two equivalent Gd(2), and one As(1) atom to form distorted OGd3As tetrahedra that share corners with four equivalent O(2)Gd3As tetrahedra, corners with six equivalent O(3)Gd4 tetrahedra,  a cornercorner with one O(4)Gd2As2 trigonal pyramid,  an edgeedge with one O(3)Gd4 tetrahedra, edges with two equivalent O(2)Gd3As tetrahedra, and edges with two equivalent O(4)Gd2As2 trigonal pyramids. In the third O site, O(3) is bonded to one Gd(2), one Gd(3), and two equivalent Gd(1) atoms to form OGd4 tetrahedra that share corners with four equivalent O(3)Gd4 tetrahedra, corners with six equivalent O(2)Gd3As tetrahedra, corners with three equivalent O(4)Gd2As2 trigonal pyramids,  an edgeedge with one O(2)Gd3As tetrahedra, and edges with three equivalent O(3)Gd4 tetrahedra. In the fourth O site, O(4) is bonded to one Gd(1), one Gd(2), and two equivalent As(1) atoms to form distorted OGd2As2 trigonal pyramids that share corners with two equivalent O(2)Gd3As tetrahedra, corners with six equivalent O(3)Gd4 tetrahedra, edges with four equivalent O(2)Gd3As tetrahedra, and  an edgeedge with one O(4)Gd2As2 trigonal pyramid. is represented by the CIF card [CIF]
data_Gd5(AsO6)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.897
_cell_length_b   6.897
_cell_length_c   7.379
_cell_angle_alpha   74.465
_cell_angle_beta   74.465
_cell_angle_gamma   51.114
_symmetry_Int_Tables_number   1
_cell_volume   260.898
_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
  Gd  Gd0  1  0.697  0.697  0.640  1.0
  Gd  Gd1  1  0.696  0.696  0.166  1.0
  Gd  Gd2  1  0.000  0.000  0.500  1.0
  Gd  Gd3  1  0.304  0.304  0.834  1.0
  Gd  Gd4  1  0.303  0.303  0.360  1.0
  As  As5  1  0.243  0.757  0.000  1.0
  As  As6  1  0.757  0.243  0.000  1.0
  O  O7  1  0.999  0.999  0.173  1.0
  O  O8  1  0.896  0.420  0.921  1.0
  O  O9  1  0.420  0.896  0.921  1.0
  O  O10  1  0.904  0.402  0.424  1.0
  O  O11  1  0.402  0.904  0.424  1.0
  O  O12  1  0.500  0.500  0.824  1.0
  O  O13  1  0.500  0.500  0.176  1.0
  O  O14  1  0.096  0.598  0.576  1.0
  O  O15  1  0.598  0.096  0.576  1.0
  O  O16  1  0.104  0.580  0.079  1.0
  O  O17  1  0.580  0.104  0.079  1.0
  O  O18  1  0.001  0.001  0.827  1.0
[/CIF]
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