The structure described by Y4Sn13Si2(SbO14)2 crystallizes in the monoclinic C2/m space group. Y(1) is bonded to one O(1), one O(5), and three equivalent O(2) atoms to form distorted YO5 trigonal bipyramids that share  a cornercorner with one Sb(1)O6 octahedra, corners with two equivalent Y(1)O5 trigonal bipyramids, and edges with two equivalent Y(1)O5 trigonal bipyramids. The corner-sharing octahedral tilt angles are 46°. There are five inequivalent Sn sites. In the first Sn site, Sn(1) is bonded in a 4-coordinate geometry to one O(7), one O(8), and two equivalent O(1) atoms. In the second Sn site, Sn(2) is bonded in a distorted T-shaped geometry to one O(1), one O(3), and one O(6) atom. In the third Sn site, Sn(3) is bonded in a 4-coordinate geometry to two equivalent O(5) and two equivalent O(8) atoms. In the fourth Sn site, Sn(4) is bonded to two equivalent O(3), two equivalent O(4), and four equivalent O(6) atoms to form distorted SnO8 hexagonal bipyramids that share edges with two equivalent Sb(1)O6 octahedra and edges with two equivalent Si(1)O4 tetrahedra. In the fifth Sn site, Sn(5) is bonded in a 6-coordinate geometry to two equivalent O(4), two equivalent O(6), and two equivalent O(8) atoms. Si(1) is bonded to one O(3), one O(4), and two equivalent O(7) atoms to form SiO4 tetrahedra that share  an edgeedge with one Sn(4)O8 hexagonal bipyramid. Sb(1) is bonded to two equivalent O(5), two equivalent O(6), and two equivalent O(8) atoms to form SbO6 octahedra that share corners with two equivalent Y(1)O5 trigonal bipyramids and  an edgeedge with one Sn(4)O8 hexagonal bipyramid. There are eight inequivalent O sites. In the first O site, O(1) is bonded to one Y(1), one Sn(2), and two equivalent Sn(1) atoms to form distorted OYSn3 tetrahedra that share  a cornercorner with one O(3)SiSn3 tetrahedra, corners with two equivalent O(8)Sn3Sb trigonal pyramids, and  an edgeedge with one O(1)YSn3 tetrahedra. In the second O site, O(2) is bonded in a 3-coordinate geometry to three equivalent Y(1) atoms. In the third O site, O(3) is bonded to one Sn(4), two equivalent Sn(2), and one Si(1) atom to form distorted OSiSn3 tetrahedra that share  a cornercorner with one O(3)SiSn3 tetrahedra and corners with two equivalent O(1)YSn3 tetrahedra. In the fourth O site, O(4) is bonded in a 4-coordinate geometry to one Sn(4), two equivalent Sn(5), and one Si(1) atom. In the fifth O site, O(5) is bonded in a distorted trigonal planar geometry to one Y(1), one Sn(3), and one Sb(1) atom. In the sixth O site, O(6) is bonded in a 4-coordinate geometry to one Sn(2), one Sn(4), one Sn(5), and one Sb(1) atom. In the seventh O site, O(7) is bonded in a bent 150 degrees geometry to one Sn(1) and one Si(1) atom. In the eighth O site, O(8) is bonded to one Sn(1), one Sn(3), one Sn(5), and one Sb(1) atom to form distorted OSn3Sb trigonal pyramids that share corners with two equivalent O(1)YSn3 tetrahedra,  a cornercorner with one O(8)Sn3Sb trigonal pyramid, and  an edgeedge with one O(8)Sn3Sb trigonal pyramid. is represented by the CIF card [CIF]
data_Y4Si2Sn13(SbO14)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   14.140
_cell_length_b   14.140
_cell_length_c   9.806
_cell_angle_alpha   86.843
_cell_angle_beta   86.843
_cell_angle_gamma   154.295
_symmetry_Int_Tables_number   1
_cell_volume   823.902
_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
  Y  Y0  1  0.057  0.476  0.643  1.0
  Y  Y1  1  0.524  0.943  0.357  1.0
  Y  Y2  1  0.943  0.524  0.357  1.0
  Y  Y3  1  0.476  0.057  0.643  1.0
  Si  Si4  1  0.169  0.169  0.286  1.0
  Si  Si5  1  0.831  0.831  0.714  1.0
  Sn  Sn6  1  0.883  0.626  0.659  1.0
  Sn  Sn7  1  0.658  0.802  0.335  1.0
  Sn  Sn8  1  0.374  0.117  0.341  1.0
  Sn  Sn9  1  0.117  0.374  0.341  1.0
  Sn  Sn10  1  0.342  0.198  0.665  1.0
  Sn  Sn11  1  0.300  0.700  0.000  1.0
  Sn  Sn12  1  0.198  0.342  0.665  1.0
  Sn  Sn13  1  0.000  0.000  0.000  1.0
  Sn  Sn14  1  0.430  0.570  0.000  1.0
  Sn  Sn15  1  0.802  0.658  0.335  1.0
  Sn  Sn16  1  0.626  0.883  0.659  1.0
  Sn  Sn17  1  0.570  0.430  0.000  1.0
  Sn  Sn18  1  0.700  0.300  0.000  1.0
  Sb  Sb19  1  0.857  0.143  0.000  1.0
  Sb  Sb20  1  0.143  0.857  0.000  1.0
  O  O21  1  0.762  0.038  0.386  1.0
  O  O22  1  0.162  0.607  0.389  1.0
  O  O23  1  0.913  0.913  0.265  1.0
  O  O24  1  0.333  0.333  0.123  1.0
  O  O25  1  0.838  0.393  0.611  1.0
  O  O26  1  0.238  0.962  0.614  1.0
  O  O27  1  0.996  0.613  0.125  1.0
  O  O28  1  0.004  0.387  0.875  1.0
  O  O29  1  0.667  0.667  0.877  1.0
  O  O30  1  0.085  0.256  0.887  1.0
  O  O31  1  0.146  0.248  0.363  1.0
  O  O32  1  0.962  0.238  0.614  1.0
  O  O33  1  0.387  0.004  0.875  1.0
  O  O34  1  0.744  0.915  0.113  1.0
  O  O35  1  0.752  0.854  0.637  1.0
  O  O36  1  0.087  0.087  0.735  1.0
  O  O37  1  0.256  0.085  0.887  1.0
  O  O38  1  0.915  0.744  0.113  1.0
  O  O39  1  0.613  0.996  0.125  1.0
  O  O40  1  0.098  0.387  0.111  1.0
  O  O41  1  0.902  0.613  0.889  1.0
  O  O42  1  0.248  0.146  0.363  1.0
  O  O43  1  0.387  0.098  0.111  1.0
  O  O44  1  0.607  0.162  0.389  1.0
  O  O45  1  0.854  0.752  0.637  1.0
  O  O46  1  0.613  0.902  0.889  1.0
  O  O47  1  0.038  0.762  0.386  1.0
  O  O48  1  0.393  0.838  0.611  1.0
[/CIF]
.
The structure described by Y4Sn13Si2(SbO14)2 crystallizes in the monoclinic C2/m space group. Y(1) is bonded to one O(1), one O(5), and three equivalent O(2) atoms to form distorted YO5 trigonal bipyramids that share  a cornercorner with one Sb(1)O6 octahedra, corners with two equivalent Y(1)O5 trigonal bipyramids, and edges with two equivalent Y(1)O5 trigonal bipyramids. The corner-sharing octahedral tilt angles are 46°. There are five inequivalent Sn sites. In the first Sn site, Sn(1) is bonded in a 4-coordinate geometry to one O(7), one O(8), and two equivalent O(1) atoms. In the second Sn site, Sn(2) is bonded in a distorted T-shaped geometry to one O(1), one O(3), and one O(6) atom. In the third Sn site, Sn(3) is bonded in a 4-coordinate geometry to two equivalent O(5) and two equivalent O(8) atoms. In the fourth Sn site, Sn(4) is bonded to two equivalent O(3), two equivalent O(4), and four equivalent O(6) atoms to form distorted SnO8 hexagonal bipyramids that share edges with two equivalent Sb(1)O6 octahedra and edges with two equivalent Si(1)O4 tetrahedra. In the fifth Sn site, Sn(5) is bonded in a 6-coordinate geometry to two equivalent O(4), two equivalent O(6), and two equivalent O(8) atoms. Si(1) is bonded to one O(3), one O(4), and two equivalent O(7) atoms to form SiO4 tetrahedra that share  an edgeedge with one Sn(4)O8 hexagonal bipyramid. Sb(1) is bonded to two equivalent O(5), two equivalent O(6), and two equivalent O(8) atoms to form SbO6 octahedra that share corners with two equivalent Y(1)O5 trigonal bipyramids and  an edgeedge with one Sn(4)O8 hexagonal bipyramid. There are eight inequivalent O sites. In the first O site, O(1) is bonded to one Y(1), one Sn(2), and two equivalent Sn(1) atoms to form distorted OYSn3 tetrahedra that share  a cornercorner with one O(3)SiSn3 tetrahedra, corners with two equivalent O(8)Sn3Sb trigonal pyramids, and  an edgeedge with one O(1)YSn3 tetrahedra. In the second O site, O(2) is bonded in a 3-coordinate geometry to three equivalent Y(1) atoms. In the third O site, O(3) is bonded to one Sn(4), two equivalent Sn(2), and one Si(1) atom to form distorted OSiSn3 tetrahedra that share  a cornercorner with one O(3)SiSn3 tetrahedra and corners with two equivalent O(1)YSn3 tetrahedra. In the fourth O site, O(4) is bonded in a 4-coordinate geometry to one Sn(4), two equivalent Sn(5), and one Si(1) atom. In the fifth O site, O(5) is bonded in a distorted trigonal planar geometry to one Y(1), one Sn(3), and one Sb(1) atom. In the sixth O site, O(6) is bonded in a 4-coordinate geometry to one Sn(2), one Sn(4), one Sn(5), and one Sb(1) atom. In the seventh O site, O(7) is bonded in a bent 150 degrees geometry to one Sn(1) and one Si(1) atom. In the eighth O site, O(8) is bonded to one Sn(1), one Sn(3), one Sn(5), and one Sb(1) atom to form distorted OSn3Sb trigonal pyramids that share corners with two equivalent O(1)YSn3 tetrahedra,  a cornercorner with one O(8)Sn3Sb trigonal pyramid, and  an edgeedge with one O(8)Sn3Sb trigonal pyramid. is represented by the CIF card [CIF]
data_Y4Si2Sn13(SbO14)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   14.140
_cell_length_b   14.140
_cell_length_c   9.806
_cell_angle_alpha   86.843
_cell_angle_beta   86.843
_cell_angle_gamma   154.295
_symmetry_Int_Tables_number   1
_cell_volume   823.902
_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
  Y  Y0  1  0.057  0.476  0.643  1.0
  Y  Y1  1  0.524  0.943  0.357  1.0
  Y  Y2  1  0.943  0.524  0.357  1.0
  Y  Y3  1  0.476  0.057  0.643  1.0
  Si  Si4  1  0.169  0.169  0.286  1.0
  Si  Si5  1  0.831  0.831  0.714  1.0
  Sn  Sn6  1  0.883  0.626  0.659  1.0
  Sn  Sn7  1  0.658  0.802  0.335  1.0
  Sn  Sn8  1  0.374  0.117  0.341  1.0
  Sn  Sn9  1  0.117  0.374  0.341  1.0
  Sn  Sn10  1  0.342  0.198  0.665  1.0
  Sn  Sn11  1  0.300  0.700  0.000  1.0
  Sn  Sn12  1  0.198  0.342  0.665  1.0
  Sn  Sn13  1  0.000  0.000  0.000  1.0
  Sn  Sn14  1  0.430  0.570  0.000  1.0
  Sn  Sn15  1  0.802  0.658  0.335  1.0
  Sn  Sn16  1  0.626  0.883  0.659  1.0
  Sn  Sn17  1  0.570  0.430  0.000  1.0
  Sn  Sn18  1  0.700  0.300  0.000  1.0
  Sb  Sb19  1  0.857  0.143  0.000  1.0
  Sb  Sb20  1  0.143  0.857  0.000  1.0
  O  O21  1  0.762  0.038  0.386  1.0
  O  O22  1  0.162  0.607  0.389  1.0
  O  O23  1  0.913  0.913  0.265  1.0
  O  O24  1  0.333  0.333  0.123  1.0
  O  O25  1  0.838  0.393  0.611  1.0
  O  O26  1  0.238  0.962  0.614  1.0
  O  O27  1  0.996  0.613  0.125  1.0
  O  O28  1  0.004  0.387  0.875  1.0
  O  O29  1  0.667  0.667  0.877  1.0
  O  O30  1  0.085  0.256  0.887  1.0
  O  O31  1  0.146  0.248  0.363  1.0
  O  O32  1  0.962  0.238  0.614  1.0
  O  O33  1  0.387  0.004  0.875  1.0
  O  O34  1  0.744  0.915  0.113  1.0
  O  O35  1  0.752  0.854  0.637  1.0
  O  O36  1  0.087  0.087  0.735  1.0
  O  O37  1  0.256  0.085  0.887  1.0
  O  O38  1  0.915  0.744  0.113  1.0
  O  O39  1  0.613  0.996  0.125  1.0
  O  O40  1  0.098  0.387  0.111  1.0
  O  O41  1  0.902  0.613  0.889  1.0
  O  O42  1  0.248  0.146  0.363  1.0
  O  O43  1  0.387  0.098  0.111  1.0
  O  O44  1  0.607  0.162  0.389  1.0
  O  O45  1  0.854  0.752  0.637  1.0
  O  O46  1  0.613  0.902  0.889  1.0
  O  O47  1  0.038  0.762  0.386  1.0
  O  O48  1  0.393  0.838  0.611  1.0
[/CIF]
.