The structure described by CaSb4O9 crystallizes in the triclinic P-1 space group. Ca(1) is bonded in a 8-coordinate geometry to one O(2), one O(3), one O(4), one O(5), one O(6), one O(7), one O(8), and one O(9) atom. There are four inequivalent Sb sites. In the first Sb site, Sb(1) is bonded to one O(5), two equivalent O(3), and two equivalent O(8) atoms to form distorted edge-sharing SbO5 square pyramids. In the second Sb site, Sb(2) is bonded in a 3-coordinate geometry to one O(5), one O(6), and one O(8) atom. In the third Sb site, Sb(3) is bonded to one O(1), one O(2), one O(7), and two equivalent O(9) atoms to form a mixture of distorted corner and edge-sharing SbO5 trigonal bipyramids. In the fourth Sb site, Sb(4) is bonded to one O(1), one O(4), one O(6), and two equivalent O(7) atoms to form a mixture of distorted corner and edge-sharing SbO5 trigonal bipyramids. There are nine inequivalent O sites. In the first O site, O(1) is bonded in a water-like geometry to one Sb(3) and one Sb(4) atom. In the second O site, O(2) is bonded in a bent 150 degrees geometry to one Ca(1) and one Sb(3) atom. In the third O site, O(3) is bonded in a 3-coordinate geometry to one Ca(1) and two equivalent Sb(1) atoms. In the fourth O site, O(4) is bonded in a bent 120 degrees geometry to one Ca(1) and one Sb(4) atom. In the fifth O site, O(5) is bonded in a distorted trigonal non-coplanar geometry to one Ca(1), one Sb(1), and one Sb(2) atom. In the sixth O site, O(6) is bonded in a 3-coordinate geometry to one Ca(1), one Sb(2), and one Sb(4) atom. In the seventh O site, O(7) is bonded to one Ca(1), one Sb(3), and two equivalent Sb(4) atoms to form a mixture of distorted corner and edge-sharing OCaSb3 tetrahedra. In the eighth O site, O(8) is bonded to one Ca(1), one Sb(2), and two equivalent Sb(1) atoms to form a mixture of distorted corner and edge-sharing OCaSb3 trigonal pyramids. In the ninth O site, O(9) is bonded in a distorted trigonal non-coplanar geometry to one Ca(1) and two equivalent Sb(3) atoms. is represented by the CIF card [CIF]
data_CaSb4O9
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.517
_cell_length_b   8.934
_cell_length_c   9.832
_cell_angle_alpha   95.465
_cell_angle_beta   98.514
_cell_angle_gamma   92.533
_symmetry_Int_Tables_number   1
_cell_volume   476.279
_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
  Ca  Ca0  1  0.192  0.265  0.231  1.0
  Ca  Ca1  1  0.808  0.735  0.769  1.0
  Sb  Sb2  1  0.759  0.577  0.437  1.0
  Sb  Sb3  1  0.280  0.809  0.504  1.0
  Sb  Sb4  1  0.611  0.347  0.974  1.0
  Sb  Sb5  1  0.330  0.024  0.847  1.0
  Sb  Sb6  1  0.670  0.976  0.153  1.0
  Sb  Sb7  1  0.720  0.191  0.496  1.0
  Sb  Sb8  1  0.241  0.423  0.563  1.0
  Sb  Sb9  1  0.389  0.653  0.026  1.0
  O  O10  1  0.567  0.768  0.194  1.0
  O  O11  1  0.433  0.232  0.806  1.0
  O  O12  1  0.061  0.672  0.965  1.0
  O  O13  1  0.894  0.482  0.612  1.0
  O  O14  1  0.995  0.983  0.836  1.0
  O  O15  1  0.957  0.775  0.562  1.0
  O  O16  1  0.939  0.328  0.035  1.0
  O  O17  1  0.106  0.518  0.388  1.0
  O  O18  1  0.005  0.017  0.164  1.0
  O  O19  1  0.043  0.225  0.438  1.0
  O  O20  1  0.556  0.061  0.319  1.0
  O  O21  1  0.473  0.136  0.047  1.0
  O  O22  1  0.536  0.353  0.405  1.0
  O  O23  1  0.434  0.454  0.112  1.0
  O  O24  1  0.566  0.546  0.888  1.0
  O  O25  1  0.527  0.864  0.953  1.0
  O  O26  1  0.464  0.647  0.595  1.0
  O  O27  1  0.444  0.939  0.681  1.0
[/CIF]
.
The structure described by CaSb4O9 crystallizes in the triclinic P-1 space group. Ca(1) is bonded in a 8-coordinate geometry to one O(2), one O(3), one O(4), one O(5), one O(6), one O(7), one O(8), and one O(9) atom. There are four inequivalent Sb sites. In the first Sb site, Sb(1) is bonded to one O(5), two equivalent O(3), and two equivalent O(8) atoms to form distorted edge-sharing SbO5 square pyramids. In the second Sb site, Sb(2) is bonded in a 3-coordinate geometry to one O(5), one O(6), and one O(8) atom. In the third Sb site, Sb(3) is bonded to one O(1), one O(2), one O(7), and two equivalent O(9) atoms to form a mixture of distorted corner and edge-sharing SbO5 trigonal bipyramids. In the fourth Sb site, Sb(4) is bonded to one O(1), one O(4), one O(6), and two equivalent O(7) atoms to form a mixture of distorted corner and edge-sharing SbO5 trigonal bipyramids. There are nine inequivalent O sites. In the first O site, O(1) is bonded in a water-like geometry to one Sb(3) and one Sb(4) atom. In the second O site, O(2) is bonded in a bent 150 degrees geometry to one Ca(1) and one Sb(3) atom. In the third O site, O(3) is bonded in a 3-coordinate geometry to one Ca(1) and two equivalent Sb(1) atoms. In the fourth O site, O(4) is bonded in a bent 120 degrees geometry to one Ca(1) and one Sb(4) atom. In the fifth O site, O(5) is bonded in a distorted trigonal non-coplanar geometry to one Ca(1), one Sb(1), and one Sb(2) atom. In the sixth O site, O(6) is bonded in a 3-coordinate geometry to one Ca(1), one Sb(2), and one Sb(4) atom. In the seventh O site, O(7) is bonded to one Ca(1), one Sb(3), and two equivalent Sb(4) atoms to form a mixture of distorted corner and edge-sharing OCaSb3 tetrahedra. In the eighth O site, O(8) is bonded to one Ca(1), one Sb(2), and two equivalent Sb(1) atoms to form a mixture of distorted corner and edge-sharing OCaSb3 trigonal pyramids. In the ninth O site, O(9) is bonded in a distorted trigonal non-coplanar geometry to one Ca(1) and two equivalent Sb(3) atoms. is represented by the CIF card [CIF]
data_CaSb4O9
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.517
_cell_length_b   8.934
_cell_length_c   9.832
_cell_angle_alpha   95.465
_cell_angle_beta   98.514
_cell_angle_gamma   92.533
_symmetry_Int_Tables_number   1
_cell_volume   476.279
_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
  Ca  Ca0  1  0.192  0.265  0.231  1.0
  Ca  Ca1  1  0.808  0.735  0.769  1.0
  Sb  Sb2  1  0.759  0.577  0.437  1.0
  Sb  Sb3  1  0.280  0.809  0.504  1.0
  Sb  Sb4  1  0.611  0.347  0.974  1.0
  Sb  Sb5  1  0.330  0.024  0.847  1.0
  Sb  Sb6  1  0.670  0.976  0.153  1.0
  Sb  Sb7  1  0.720  0.191  0.496  1.0
  Sb  Sb8  1  0.241  0.423  0.563  1.0
  Sb  Sb9  1  0.389  0.653  0.026  1.0
  O  O10  1  0.567  0.768  0.194  1.0
  O  O11  1  0.433  0.232  0.806  1.0
  O  O12  1  0.061  0.672  0.965  1.0
  O  O13  1  0.894  0.482  0.612  1.0
  O  O14  1  0.995  0.983  0.836  1.0
  O  O15  1  0.957  0.775  0.562  1.0
  O  O16  1  0.939  0.328  0.035  1.0
  O  O17  1  0.106  0.518  0.388  1.0
  O  O18  1  0.005  0.017  0.164  1.0
  O  O19  1  0.043  0.225  0.438  1.0
  O  O20  1  0.556  0.061  0.319  1.0
  O  O21  1  0.473  0.136  0.047  1.0
  O  O22  1  0.536  0.353  0.405  1.0
  O  O23  1  0.434  0.454  0.112  1.0
  O  O24  1  0.566  0.546  0.888  1.0
  O  O25  1  0.527  0.864  0.953  1.0
  O  O26  1  0.464  0.647  0.595  1.0
  O  O27  1  0.444  0.939  0.681  1.0
[/CIF]
.