The crystal structure described by YFe(WO4)2 is Hydrophilite-derived structured and crystallizes in the triclinic P1 space group. There are two inequivalent Y sites. In the first Y site, Y(1) is bonded to one O(1), one O(11), one O(13), one O(15), one O(3), and one O(9) atom to form distorted YO6 octahedra that share corners with two equivalent W(1)O6 octahedra, corners with two equivalent W(2)O6 octahedra, corners with two equivalent W(3)O6 octahedra, corners with two equivalent W(4)O6 octahedra, and edges with two equivalent Fe(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 47-60°. In the second Y site, Y(2) is bonded in a 6-coordinate geometry to one O(10), one O(12), one O(14), one O(16), one O(2), and one O(4) atom. There are four inequivalent W sites. In the first W site, W(1) is bonded to one O(12), one O(15), one O(16), one O(3), one O(5), and one O(6) atom to form WO6 octahedra that share corners with two equivalent Y(1)O6 octahedra, corners with two equivalent Fe(1)O6 octahedra, corners with two equivalent Fe(2)O6 octahedra, and edges with two equivalent W(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 38-60°. In the second W site, W(2) is bonded to one O(11), one O(15), one O(16), one O(4), one O(5), and one O(6) atom to form WO6 octahedra that share corners with two equivalent Y(1)O6 octahedra, corners with two equivalent Fe(1)O6 octahedra, corners with two equivalent Fe(2)O6 octahedra, and edges with two equivalent W(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 37-60°. In the third W site, W(3) is bonded to one O(1), one O(10), one O(13), one O(14), one O(7), and one O(8) atom to form distorted WO6 octahedra that share corners with two equivalent Y(1)O6 octahedra, corners with two equivalent Fe(1)O6 octahedra, corners with two equivalent Fe(2)O6 octahedra, and edges with two equivalent W(4)O6 octahedra. The corner-sharing octahedral tilt angles range from 40-60°. In the fourth W site, W(4) is bonded to one O(13), one O(14), one O(2), one O(7), one O(8), and one O(9) atom to form distorted WO6 octahedra that share corners with two equivalent Y(1)O6 octahedra, corners with two equivalent Fe(1)O6 octahedra, corners with two equivalent Fe(2)O6 octahedra, and edges with two equivalent W(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 39-59°. There are two inequivalent Fe sites. In the first Fe site, Fe(1) is bonded to one O(10), one O(12), one O(2), one O(4), one O(5), and one O(7) atom to form distorted FeO6 octahedra that share corners with two equivalent W(1)O6 octahedra, corners with two equivalent W(2)O6 octahedra, corners with two equivalent W(3)O6 octahedra, and corners with two equivalent W(4)O6 octahedra. The corner-sharing octahedral tilt angles range from 38-60°. In the second Fe site, Fe(2) is bonded to one O(1), one O(11), one O(3), one O(6), one O(8), and one O(9) atom to form distorted FeO6 octahedra that share corners with two equivalent W(1)O6 octahedra, corners with two equivalent W(2)O6 octahedra, corners with two equivalent W(3)O6 octahedra, corners with two equivalent W(4)O6 octahedra, and edges with two equivalent Y(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 37-59°. There are sixteen inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to one Y(1), one W(3), and one Fe(2) atom. In the second O site, O(2) is bonded in a 3-coordinate geometry to one Y(2), one W(4), and one Fe(1) atom. In the third O site, O(3) is bonded in a trigonal planar geometry to one Y(1), one W(1), and one Fe(2) atom. In the fourth O site, O(4) is bonded in a trigonal planar geometry to one Y(2), one W(2), and one Fe(1) atom. In the fifth O site, O(5) is bonded in a distorted trigonal planar geometry to one W(1), one W(2), and one Fe(1) atom. In the sixth O site, O(6) is bonded in a distorted trigonal planar geometry to one W(1), one W(2), and one Fe(2) atom. In the seventh O site, O(7) is bonded in a distorted trigonal planar geometry to one W(3), one W(4), and one Fe(1) atom. In the eighth O site, O(8) is bonded in a distorted trigonal planar geometry to one W(3), one W(4), and one Fe(2) atom. In the ninth O site, O(9) is bonded in a 3-coordinate geometry to one Y(1), one W(4), and one Fe(2) atom. In the tenth O site, O(10) is bonded in a 3-coordinate geometry to one Y(2), one W(3), and one Fe(1) atom. In the eleventh O site, O(11) is bonded in a distorted trigonal planar geometry to one Y(1), one W(2), and one Fe(2) atom. In the twelfth O site, O(12) is bonded in a distorted trigonal planar geometry to one Y(2), one W(1), and one Fe(1) atom. In the thirteenth O site, O(13) is bonded in a trigonal planar geometry to one Y(1), one W(3), and one W(4) atom. In the fourteenth O site, O(14) is bonded in a trigonal planar geometry to one Y(2), one W(3), and one W(4) atom. In the fifteenth O site, O(15) is bonded in a trigonal planar geometry to one Y(1), one W(1), and one W(2) atom. In the sixteenth O site, O(16) is bonded in a trigonal planar geometry to one Y(2), one W(1), and one W(2) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_YFe(WO4)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.232
_cell_length_b   5.853
_cell_length_c   10.048
_cell_angle_alpha   89.679
_cell_angle_beta   93.724
_cell_angle_gamma   91.109
_symmetry_Int_Tables_number   1
_cell_volume   306.974
_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
  Y  Y0  1  0.251  0.673  0.259  1.0
  Y  Y1  1  0.747  0.321  0.741  1.0
  Fe  Fe2  1  0.250  0.689  0.737  1.0
  Fe  Fe3  1  0.744  0.313  0.264  1.0
  W  W4  1  0.260  0.165  0.496  1.0
  W  W5  1  0.747  0.837  0.504  1.0
  W  W6  1  0.249  0.168  0.005  1.0
  W  W7  1  0.746  0.831  0.995  1.0
  O  O8  1  0.405  0.363  0.129  1.0
  O  O9  1  0.589  0.639  0.869  1.0
  O  O10  1  0.101  0.363  0.357  1.0
  O  O11  1  0.904  0.633  0.643  1.0
  O  O12  1  0.456  0.914  0.616  1.0
  O  O13  1  0.558  0.092  0.385  1.0
  O  O14  1  0.043  0.902  0.894  1.0
  O  O15  1  0.949  0.097  0.106  1.0
  O  O16  1  0.880  0.624  0.117  1.0
  O  O17  1  0.112  0.373  0.883  1.0
  O  O18  1  0.625  0.617  0.377  1.0
  O  O19  1  0.381  0.387  0.621  1.0
  O  O20  1  0.441  0.887  0.097  1.0
  O  O21  1  0.553  0.111  0.903  1.0
  O  O22  1  0.078  0.886  0.405  1.0
  O  O23  1  0.930  0.114  0.596  1.0
[/CIF]
.
The crystal structure described by YFe(WO4)2 is Hydrophilite-derived structured and crystallizes in the triclinic P1 space group. There are two inequivalent Y sites. In the first Y site, Y(1) is bonded to one O(1), one O(11), one O(13), one O(15), one O(3), and one O(9) atom to form distorted YO6 octahedra that share corners with two equivalent W(1)O6 octahedra, corners with two equivalent W(2)O6 octahedra, corners with two equivalent W(3)O6 octahedra, corners with two equivalent W(4)O6 octahedra, and edges with two equivalent Fe(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 47-60°. In the second Y site, Y(2) is bonded in a 6-coordinate geometry to one O(10), one O(12), one O(14), one O(16), one O(2), and one O(4) atom. There are four inequivalent W sites. In the first W site, W(1) is bonded to one O(12), one O(15), one O(16), one O(3), one O(5), and one O(6) atom to form WO6 octahedra that share corners with two equivalent Y(1)O6 octahedra, corners with two equivalent Fe(1)O6 octahedra, corners with two equivalent Fe(2)O6 octahedra, and edges with two equivalent W(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 38-60°. In the second W site, W(2) is bonded to one O(11), one O(15), one O(16), one O(4), one O(5), and one O(6) atom to form WO6 octahedra that share corners with two equivalent Y(1)O6 octahedra, corners with two equivalent Fe(1)O6 octahedra, corners with two equivalent Fe(2)O6 octahedra, and edges with two equivalent W(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 37-60°. In the third W site, W(3) is bonded to one O(1), one O(10), one O(13), one O(14), one O(7), and one O(8) atom to form distorted WO6 octahedra that share corners with two equivalent Y(1)O6 octahedra, corners with two equivalent Fe(1)O6 octahedra, corners with two equivalent Fe(2)O6 octahedra, and edges with two equivalent W(4)O6 octahedra. The corner-sharing octahedral tilt angles range from 40-60°. In the fourth W site, W(4) is bonded to one O(13), one O(14), one O(2), one O(7), one O(8), and one O(9) atom to form distorted WO6 octahedra that share corners with two equivalent Y(1)O6 octahedra, corners with two equivalent Fe(1)O6 octahedra, corners with two equivalent Fe(2)O6 octahedra, and edges with two equivalent W(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 39-59°. There are two inequivalent Fe sites. In the first Fe site, Fe(1) is bonded to one O(10), one O(12), one O(2), one O(4), one O(5), and one O(7) atom to form distorted FeO6 octahedra that share corners with two equivalent W(1)O6 octahedra, corners with two equivalent W(2)O6 octahedra, corners with two equivalent W(3)O6 octahedra, and corners with two equivalent W(4)O6 octahedra. The corner-sharing octahedral tilt angles range from 38-60°. In the second Fe site, Fe(2) is bonded to one O(1), one O(11), one O(3), one O(6), one O(8), and one O(9) atom to form distorted FeO6 octahedra that share corners with two equivalent W(1)O6 octahedra, corners with two equivalent W(2)O6 octahedra, corners with two equivalent W(3)O6 octahedra, corners with two equivalent W(4)O6 octahedra, and edges with two equivalent Y(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 37-59°. There are sixteen inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to one Y(1), one W(3), and one Fe(2) atom. In the second O site, O(2) is bonded in a 3-coordinate geometry to one Y(2), one W(4), and one Fe(1) atom. In the third O site, O(3) is bonded in a trigonal planar geometry to one Y(1), one W(1), and one Fe(2) atom. In the fourth O site, O(4) is bonded in a trigonal planar geometry to one Y(2), one W(2), and one Fe(1) atom. In the fifth O site, O(5) is bonded in a distorted trigonal planar geometry to one W(1), one W(2), and one Fe(1) atom. In the sixth O site, O(6) is bonded in a distorted trigonal planar geometry to one W(1), one W(2), and one Fe(2) atom. In the seventh O site, O(7) is bonded in a distorted trigonal planar geometry to one W(3), one W(4), and one Fe(1) atom. In the eighth O site, O(8) is bonded in a distorted trigonal planar geometry to one W(3), one W(4), and one Fe(2) atom. In the ninth O site, O(9) is bonded in a 3-coordinate geometry to one Y(1), one W(4), and one Fe(2) atom. In the tenth O site, O(10) is bonded in a 3-coordinate geometry to one Y(2), one W(3), and one Fe(1) atom. In the eleventh O site, O(11) is bonded in a distorted trigonal planar geometry to one Y(1), one W(2), and one Fe(2) atom. In the twelfth O site, O(12) is bonded in a distorted trigonal planar geometry to one Y(2), one W(1), and one Fe(1) atom. In the thirteenth O site, O(13) is bonded in a trigonal planar geometry to one Y(1), one W(3), and one W(4) atom. In the fourteenth O site, O(14) is bonded in a trigonal planar geometry to one Y(2), one W(3), and one W(4) atom. In the fifteenth O site, O(15) is bonded in a trigonal planar geometry to one Y(1), one W(1), and one W(2) atom. In the sixteenth O site, O(16) is bonded in a trigonal planar geometry to one Y(2), one W(1), and one W(2) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_YFe(WO4)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.232
_cell_length_b   5.853
_cell_length_c   10.048
_cell_angle_alpha   89.679
_cell_angle_beta   93.724
_cell_angle_gamma   91.109
_symmetry_Int_Tables_number   1
_cell_volume   306.974
_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
  Y  Y0  1  0.251  0.673  0.259  1.0
  Y  Y1  1  0.747  0.321  0.741  1.0
  Fe  Fe2  1  0.250  0.689  0.737  1.0
  Fe  Fe3  1  0.744  0.313  0.264  1.0
  W  W4  1  0.260  0.165  0.496  1.0
  W  W5  1  0.747  0.837  0.504  1.0
  W  W6  1  0.249  0.168  0.005  1.0
  W  W7  1  0.746  0.831  0.995  1.0
  O  O8  1  0.405  0.363  0.129  1.0
  O  O9  1  0.589  0.639  0.869  1.0
  O  O10  1  0.101  0.363  0.357  1.0
  O  O11  1  0.904  0.633  0.643  1.0
  O  O12  1  0.456  0.914  0.616  1.0
  O  O13  1  0.558  0.092  0.385  1.0
  O  O14  1  0.043  0.902  0.894  1.0
  O  O15  1  0.949  0.097  0.106  1.0
  O  O16  1  0.880  0.624  0.117  1.0
  O  O17  1  0.112  0.373  0.883  1.0
  O  O18  1  0.625  0.617  0.377  1.0
  O  O19  1  0.381  0.387  0.621  1.0
  O  O20  1  0.441  0.887  0.097  1.0
  O  O21  1  0.553  0.111  0.903  1.0
  O  O22  1  0.078  0.886  0.405  1.0
  O  O23  1  0.930  0.114  0.596  1.0
[/CIF]
.