The material described by Gd2As4O11 crystallizes in the monoclinic C2/c space group. Gd(1) is bonded in a 8-coordinate geometry to one O(1), one O(2), two equivalent O(3), two equivalent O(4), and two equivalent O(5) atoms. There are two inequivalent As sites. In the first As site, As(1) is bonded to one O(1), one O(2), one O(4), and one O(6) atom to form corner-sharing AsO4 tetrahedra. In the second As site, As(2) is bonded in a 4-coordinate geometry to one O(2), one O(3), one O(4), and one O(5) atom. There are six inequivalent O sites. In the first O site, O(1) is bonded in a bent 120 degrees geometry to one Gd(1) and one As(1) atom. In the second O site, O(2) is bonded in a 3-coordinate geometry to one Gd(1), one As(1), and one As(2) atom. In the third O site, O(3) is bonded in a distorted trigonal planar geometry to two equivalent Gd(1) and one As(2) atom. In the fourth O site, O(4) is bonded in a 4-coordinate geometry to two equivalent Gd(1), one As(1), and one As(2) atom. In the fifth O site, O(5) is bonded in a 3-coordinate geometry to two equivalent Gd(1) and one As(2) atom. In the sixth O site, O(6) is bonded in a bent 120 degrees geometry to two equivalent As(1) atoms. is represented by the CIF card [CIF]
data_Gd2As4O11
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.709
_cell_length_b   6.709
_cell_length_c   16.428
_cell_angle_alpha   83.830
_cell_angle_beta   83.830
_cell_angle_gamma   47.178
_symmetry_Int_Tables_number   1
_cell_volume   538.569
_cell_formula_units_Z   2
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  0.673  0.120  0.969  1.0
  Gd  Gd1  1  0.120  0.673  0.469  1.0
  Gd  Gd2  1  0.880  0.327  0.531  1.0
  Gd  Gd3  1  0.327  0.880  0.031  1.0
  As  As4  1  0.224  0.651  0.843  1.0
  As  As5  1  0.509  0.136  0.619  1.0
  As  As6  1  0.651  0.224  0.343  1.0
  As  As7  1  0.864  0.491  0.881  1.0
  As  As8  1  0.136  0.509  0.119  1.0
  As  As9  1  0.349  0.776  0.657  1.0
  As  As10  1  0.491  0.864  0.381  1.0
  As  As11  1  0.776  0.349  0.157  1.0
  O  O12  1  0.045  0.093  0.661  1.0
  O  O13  1  0.241  0.380  0.864  1.0
  O  O14  1  0.093  0.045  0.161  1.0
  O  O15  1  0.243  0.303  0.549  1.0
  O  O16  1  0.380  0.241  0.364  1.0
  O  O17  1  0.432  0.589  0.915  1.0
  O  O18  1  0.981  0.208  0.949  1.0
  O  O19  1  0.422  0.578  0.750  1.0
  O  O20  1  0.792  0.019  0.551  1.0
  O  O21  1  0.303  0.243  0.049  1.0
  O  O22  1  0.411  0.568  0.585  1.0
  O  O23  1  0.589  0.432  0.415  1.0
  O  O24  1  0.697  0.757  0.951  1.0
  O  O25  1  0.208  0.981  0.449  1.0
  O  O26  1  0.578  0.422  0.250  1.0
  O  O27  1  0.019  0.792  0.051  1.0
  O  O28  1  0.568  0.411  0.085  1.0
  O  O29  1  0.620  0.759  0.636  1.0
  O  O30  1  0.757  0.697  0.451  1.0
  O  O31  1  0.907  0.955  0.839  1.0
  O  O32  1  0.759  0.620  0.136  1.0
  O  O33  1  0.955  0.907  0.339  1.0
[/CIF]
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The material described by Gd2As4O11 crystallizes in the monoclinic C2/c space group. Gd(1) is bonded in a 8-coordinate geometry to one O(1), one O(2), two equivalent O(3), two equivalent O(4), and two equivalent O(5) atoms. There are two inequivalent As sites. In the first As site, As(1) is bonded to one O(1), one O(2), one O(4), and one O(6) atom to form corner-sharing AsO4 tetrahedra. In the second As site, As(2) is bonded in a 4-coordinate geometry to one O(2), one O(3), one O(4), and one O(5) atom. There are six inequivalent O sites. In the first O site, O(1) is bonded in a bent 120 degrees geometry to one Gd(1) and one As(1) atom. In the second O site, O(2) is bonded in a 3-coordinate geometry to one Gd(1), one As(1), and one As(2) atom. In the third O site, O(3) is bonded in a distorted trigonal planar geometry to two equivalent Gd(1) and one As(2) atom. In the fourth O site, O(4) is bonded in a 4-coordinate geometry to two equivalent Gd(1), one As(1), and one As(2) atom. In the fifth O site, O(5) is bonded in a 3-coordinate geometry to two equivalent Gd(1) and one As(2) atom. In the sixth O site, O(6) is bonded in a bent 120 degrees geometry to two equivalent As(1) atoms. is represented by the CIF card [CIF]
data_Gd2As4O11
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.709
_cell_length_b   6.709
_cell_length_c   16.428
_cell_angle_alpha   83.830
_cell_angle_beta   83.830
_cell_angle_gamma   47.178
_symmetry_Int_Tables_number   1
_cell_volume   538.569
_cell_formula_units_Z   2
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  0.673  0.120  0.969  1.0
  Gd  Gd1  1  0.120  0.673  0.469  1.0
  Gd  Gd2  1  0.880  0.327  0.531  1.0
  Gd  Gd3  1  0.327  0.880  0.031  1.0
  As  As4  1  0.224  0.651  0.843  1.0
  As  As5  1  0.509  0.136  0.619  1.0
  As  As6  1  0.651  0.224  0.343  1.0
  As  As7  1  0.864  0.491  0.881  1.0
  As  As8  1  0.136  0.509  0.119  1.0
  As  As9  1  0.349  0.776  0.657  1.0
  As  As10  1  0.491  0.864  0.381  1.0
  As  As11  1  0.776  0.349  0.157  1.0
  O  O12  1  0.045  0.093  0.661  1.0
  O  O13  1  0.241  0.380  0.864  1.0
  O  O14  1  0.093  0.045  0.161  1.0
  O  O15  1  0.243  0.303  0.549  1.0
  O  O16  1  0.380  0.241  0.364  1.0
  O  O17  1  0.432  0.589  0.915  1.0
  O  O18  1  0.981  0.208  0.949  1.0
  O  O19  1  0.422  0.578  0.750  1.0
  O  O20  1  0.792  0.019  0.551  1.0
  O  O21  1  0.303  0.243  0.049  1.0
  O  O22  1  0.411  0.568  0.585  1.0
  O  O23  1  0.589  0.432  0.415  1.0
  O  O24  1  0.697  0.757  0.951  1.0
  O  O25  1  0.208  0.981  0.449  1.0
  O  O26  1  0.578  0.422  0.250  1.0
  O  O27  1  0.019  0.792  0.051  1.0
  O  O28  1  0.568  0.411  0.085  1.0
  O  O29  1  0.620  0.759  0.636  1.0
  O  O30  1  0.757  0.697  0.451  1.0
  O  O31  1  0.907  0.955  0.839  1.0
  O  O32  1  0.759  0.620  0.136  1.0
  O  O33  1  0.955  0.907  0.339  1.0
[/CIF]
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