The crystal structure described by Gd2W4O15 crystallizes in the triclinic P-1 space group. There are two inequivalent Gd sites. In the first Gd site, Gd(1) is bonded in a 7-coordinate geometry to one O(13), one O(15), one O(2), one O(4), one O(6), one O(7), and one O(8) atom. In the second Gd site, Gd(2) is bonded in a 8-coordinate geometry to one O(11), one O(12), one O(13), one O(14), one O(15), one O(3), one O(5), and one O(8) atom. There are four inequivalent W sites. In the first W site, W(1) is bonded in a 6-coordinate geometry to one O(1), one O(10), one O(5), one O(9), and two equivalent O(2) atoms. In the second W site, W(2) is bonded in a tetrahedral geometry to one O(14), one O(3), one O(7), and one O(8) atom. In the third W site, W(3) is bonded in a tetrahedral geometry to one O(12), one O(15), one O(4), and one O(6) atom. In the fourth W site, W(4) is bonded in a tetrahedral geometry to one O(10), one O(11), one O(13), and one O(9) atom. There are fifteen inequivalent O sites. In the first O site, O(1) is bonded in a single-bond geometry to one W(1) atom. In the second O site, O(2) is bonded in a distorted trigonal planar geometry to one Gd(1) and two equivalent W(1) atoms. In the third O site, O(3) is bonded in a linear geometry to one Gd(2) and one W(2) atom. In the fourth O site, O(4) is bonded in a linear geometry to one Gd(1) and one W(3) atom. In the fifth O site, O(5) is bonded in a bent 150 degrees geometry to one Gd(2) and one W(1) atom. In the sixth O site, O(6) is bonded in a linear geometry to one Gd(1) and one W(3) atom. In the seventh O site, O(7) is bonded in a bent 150 degrees geometry to one Gd(1) and one W(2) atom. In the eighth O site, O(8) is bonded in a distorted trigonal planar geometry to one Gd(1), one Gd(2), and one W(2) atom. In the ninth O site, O(9) is bonded in a distorted bent 150 degrees geometry to one W(1) and one W(4) atom. In the tenth O site, O(10) is bonded in a bent 150 degrees geometry to one W(1) and one W(4) atom. In the eleventh O site, O(11) is bonded in a distorted bent 150 degrees geometry to one Gd(2) and one W(4) atom. In the twelfth O site, O(12) is bonded in a bent 150 degrees geometry to one Gd(2) and one W(3) atom. In the thirteenth O site, O(13) is bonded in a 3-coordinate geometry to one Gd(1), one Gd(2), and one W(4) atom. In the fourteenth O site, O(14) is bonded in a linear geometry to one Gd(2) and one W(2) atom. In the fifteenth O site, O(15) is bonded in a distorted trigonal planar geometry to one Gd(1), one Gd(2), and one W(3) atom. is represented by the CIF card [CIF]
data_Gd2W4O15
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.419
_cell_length_b   7.574
_cell_length_c   11.802
_cell_angle_alpha   88.716
_cell_angle_beta   83.615
_cell_angle_gamma   84.005
_symmetry_Int_Tables_number   1
_cell_volume   655.417
_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  0.242  0.408  0.220  1.0
  Gd  Gd1  1  0.318  0.908  0.777  1.0
  Gd  Gd2  1  0.682  0.092  0.223  1.0
  Gd  Gd3  1  0.758  0.592  0.780  1.0
  W  W4  1  0.098  0.669  0.532  1.0
  W  W5  1  0.228  0.923  0.129  1.0
  W  W6  1  0.276  0.426  0.871  1.0
  W  W7  1  0.432  0.245  0.526  1.0
  W  W8  1  0.568  0.755  0.474  1.0
  W  W9  1  0.724  0.574  0.129  1.0
  W  W10  1  0.772  0.077  0.871  1.0
  W  W11  1  0.902  0.331  0.468  1.0
  O  O12  1  0.040  0.167  0.533  1.0
  O  O13  1  0.087  0.480  0.402  1.0
  O  O14  1  0.009  0.997  0.848  1.0
  O  O15  1  0.050  0.509  0.843  1.0
  O  O16  1  0.131  0.770  0.665  1.0
  O  O17  1  0.280  0.400  0.023  1.0
  O  O18  1  0.263  0.706  0.197  1.0
  O  O19  1  0.354  0.093  0.187  1.0
  O  O20  1  0.293  0.433  0.590  1.0
  O  O21  1  0.334  0.718  0.444  1.0
  O  O22  1  0.374  0.040  0.596  1.0
  O  O23  1  0.342  0.208  0.811  1.0
  O  O24  1  0.414  0.263  0.375  1.0
  O  O25  1  0.298  0.897  0.979  1.0
  O  O26  1  0.432  0.594  0.819  1.0
  O  O27  1  0.568  0.406  0.181  1.0
  O  O28  1  0.702  0.103  0.021  1.0
  O  O29  1  0.586  0.737  0.625  1.0
  O  O30  1  0.658  0.792  0.189  1.0
  O  O31  1  0.626  0.960  0.404  1.0
  O  O32  1  0.666  0.282  0.556  1.0
  O  O33  1  0.707  0.567  0.410  1.0
  O  O34  1  0.646  0.907  0.813  1.0
  O  O35  1  0.737  0.294  0.803  1.0
  O  O36  1  0.720  0.600  0.977  1.0
  O  O37  1  0.869  0.230  0.335  1.0
  O  O38  1  0.950  0.491  0.157  1.0
  O  O39  1  0.991  0.003  0.152  1.0
  O  O40  1  0.913  0.520  0.598  1.0
  O  O41  1  0.960  0.833  0.467  1.0
[/CIF]
.
The crystal structure described by Gd2W4O15 crystallizes in the triclinic P-1 space group. There are two inequivalent Gd sites. In the first Gd site, Gd(1) is bonded in a 7-coordinate geometry to one O(13), one O(15), one O(2), one O(4), one O(6), one O(7), and one O(8) atom. In the second Gd site, Gd(2) is bonded in a 8-coordinate geometry to one O(11), one O(12), one O(13), one O(14), one O(15), one O(3), one O(5), and one O(8) atom. There are four inequivalent W sites. In the first W site, W(1) is bonded in a 6-coordinate geometry to one O(1), one O(10), one O(5), one O(9), and two equivalent O(2) atoms. In the second W site, W(2) is bonded in a tetrahedral geometry to one O(14), one O(3), one O(7), and one O(8) atom. In the third W site, W(3) is bonded in a tetrahedral geometry to one O(12), one O(15), one O(4), and one O(6) atom. In the fourth W site, W(4) is bonded in a tetrahedral geometry to one O(10), one O(11), one O(13), and one O(9) atom. There are fifteen inequivalent O sites. In the first O site, O(1) is bonded in a single-bond geometry to one W(1) atom. In the second O site, O(2) is bonded in a distorted trigonal planar geometry to one Gd(1) and two equivalent W(1) atoms. In the third O site, O(3) is bonded in a linear geometry to one Gd(2) and one W(2) atom. In the fourth O site, O(4) is bonded in a linear geometry to one Gd(1) and one W(3) atom. In the fifth O site, O(5) is bonded in a bent 150 degrees geometry to one Gd(2) and one W(1) atom. In the sixth O site, O(6) is bonded in a linear geometry to one Gd(1) and one W(3) atom. In the seventh O site, O(7) is bonded in a bent 150 degrees geometry to one Gd(1) and one W(2) atom. In the eighth O site, O(8) is bonded in a distorted trigonal planar geometry to one Gd(1), one Gd(2), and one W(2) atom. In the ninth O site, O(9) is bonded in a distorted bent 150 degrees geometry to one W(1) and one W(4) atom. In the tenth O site, O(10) is bonded in a bent 150 degrees geometry to one W(1) and one W(4) atom. In the eleventh O site, O(11) is bonded in a distorted bent 150 degrees geometry to one Gd(2) and one W(4) atom. In the twelfth O site, O(12) is bonded in a bent 150 degrees geometry to one Gd(2) and one W(3) atom. In the thirteenth O site, O(13) is bonded in a 3-coordinate geometry to one Gd(1), one Gd(2), and one W(4) atom. In the fourteenth O site, O(14) is bonded in a linear geometry to one Gd(2) and one W(2) atom. In the fifteenth O site, O(15) is bonded in a distorted trigonal planar geometry to one Gd(1), one Gd(2), and one W(3) atom. is represented by the CIF card [CIF]
data_Gd2W4O15
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.419
_cell_length_b   7.574
_cell_length_c   11.802
_cell_angle_alpha   88.716
_cell_angle_beta   83.615
_cell_angle_gamma   84.005
_symmetry_Int_Tables_number   1
_cell_volume   655.417
_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  0.242  0.408  0.220  1.0
  Gd  Gd1  1  0.318  0.908  0.777  1.0
  Gd  Gd2  1  0.682  0.092  0.223  1.0
  Gd  Gd3  1  0.758  0.592  0.780  1.0
  W  W4  1  0.098  0.669  0.532  1.0
  W  W5  1  0.228  0.923  0.129  1.0
  W  W6  1  0.276  0.426  0.871  1.0
  W  W7  1  0.432  0.245  0.526  1.0
  W  W8  1  0.568  0.755  0.474  1.0
  W  W9  1  0.724  0.574  0.129  1.0
  W  W10  1  0.772  0.077  0.871  1.0
  W  W11  1  0.902  0.331  0.468  1.0
  O  O12  1  0.040  0.167  0.533  1.0
  O  O13  1  0.087  0.480  0.402  1.0
  O  O14  1  0.009  0.997  0.848  1.0
  O  O15  1  0.050  0.509  0.843  1.0
  O  O16  1  0.131  0.770  0.665  1.0
  O  O17  1  0.280  0.400  0.023  1.0
  O  O18  1  0.263  0.706  0.197  1.0
  O  O19  1  0.354  0.093  0.187  1.0
  O  O20  1  0.293  0.433  0.590  1.0
  O  O21  1  0.334  0.718  0.444  1.0
  O  O22  1  0.374  0.040  0.596  1.0
  O  O23  1  0.342  0.208  0.811  1.0
  O  O24  1  0.414  0.263  0.375  1.0
  O  O25  1  0.298  0.897  0.979  1.0
  O  O26  1  0.432  0.594  0.819  1.0
  O  O27  1  0.568  0.406  0.181  1.0
  O  O28  1  0.702  0.103  0.021  1.0
  O  O29  1  0.586  0.737  0.625  1.0
  O  O30  1  0.658  0.792  0.189  1.0
  O  O31  1  0.626  0.960  0.404  1.0
  O  O32  1  0.666  0.282  0.556  1.0
  O  O33  1  0.707  0.567  0.410  1.0
  O  O34  1  0.646  0.907  0.813  1.0
  O  O35  1  0.737  0.294  0.803  1.0
  O  O36  1  0.720  0.600  0.977  1.0
  O  O37  1  0.869  0.230  0.335  1.0
  O  O38  1  0.950  0.491  0.157  1.0
  O  O39  1  0.991  0.003  0.152  1.0
  O  O40  1  0.913  0.520  0.598  1.0
  O  O41  1  0.960  0.833  0.467  1.0
[/CIF]
.