The crystal structure described by SnSb3(PO4)4 crystallizes in the monoclinic Pm space group. Sn(1) is bonded to one O(1), one O(9), two equivalent O(11), and two equivalent O(5) atoms to form distorted SnO6 pentagonal pyramids that share corners with four equivalent Sb(2)O6 pentagonal pyramids,  a cornercorner with one P(1)O4 tetrahedra,  a cornercorner with one P(2)O4 tetrahedra, corners with two equivalent P(4)O4 tetrahedra, and  an edgeedge with one P(2)O4 tetrahedra. There are three inequivalent Sb sites. In the first Sb site, Sb(1) is bonded to one O(12), one O(4), two equivalent O(2), and two equivalent O(8) atoms to form distorted SbO6 pentagonal pyramids that share corners with four equivalent Sb(3)O6 pentagonal pyramids,  a cornercorner with one P(3)O4 tetrahedra,  a cornercorner with one P(4)O4 tetrahedra, corners with two equivalent P(1)O4 tetrahedra, and  an edgeedge with one P(3)O4 tetrahedra. In the second Sb site, Sb(2) is bonded to one O(3), one O(7), two equivalent O(11), and two equivalent O(5) atoms to form distorted SbO6 pentagonal pyramids that share corners with four equivalent Sn(1)O6 pentagonal pyramids,  a cornercorner with one P(3)O4 tetrahedra,  a cornercorner with one P(4)O4 tetrahedra, corners with two equivalent P(2)O4 tetrahedra, and  an edgeedge with one P(4)O4 tetrahedra. In the third Sb site, Sb(3) is bonded to one O(10), one O(6), two equivalent O(2), and two equivalent O(8) atoms to form distorted SbO6 pentagonal pyramids that share corners with four equivalent Sb(1)O6 pentagonal pyramids,  a cornercorner with one P(1)O4 tetrahedra,  a cornercorner with one P(2)O4 tetrahedra, corners with two equivalent P(3)O4 tetrahedra, and  an edgeedge with one P(1)O4 tetrahedra. There are four inequivalent P sites. In the first P site, P(1) is bonded to one O(1), one O(10), and two equivalent O(2) atoms to form PO4 tetrahedra that share  a cornercorner with one Sn(1)O6 pentagonal pyramid,  a cornercorner with one Sb(3)O6 pentagonal pyramid, corners with two equivalent Sb(1)O6 pentagonal pyramids, and  an edgeedge with one Sb(3)O6 pentagonal pyramid. In the second P site, P(2) is bonded to one O(6), one O(9), and two equivalent O(5) atoms to form PO4 tetrahedra that share  a cornercorner with one Sn(1)O6 pentagonal pyramid,  a cornercorner with one Sb(3)O6 pentagonal pyramid, corners with two equivalent Sb(2)O6 pentagonal pyramids, and  an edgeedge with one Sn(1)O6 pentagonal pyramid. In the third P site, P(3) is bonded to one O(4), one O(7), and two equivalent O(8) atoms to form PO4 tetrahedra that share  a cornercorner with one Sb(1)O6 pentagonal pyramid,  a cornercorner with one Sb(2)O6 pentagonal pyramid, corners with two equivalent Sb(3)O6 pentagonal pyramids, and  an edgeedge with one Sb(1)O6 pentagonal pyramid. In the fourth P site, P(4) is bonded to one O(12), one O(3), and two equivalent O(11) atoms to form PO4 tetrahedra that share  a cornercorner with one Sb(1)O6 pentagonal pyramid,  a cornercorner with one Sb(2)O6 pentagonal pyramid, corners with two equivalent Sn(1)O6 pentagonal pyramids, and  an edgeedge with one Sb(2)O6 pentagonal pyramid. There are twelve inequivalent O sites. In the first O site, O(1) is bonded in a bent 120 degrees geometry to one Sn(1) and one P(1) atom. In the second O site, O(2) is bonded in a 3-coordinate geometry to one Sb(1), one Sb(3), and one P(1) atom. In the third O site, O(3) is bonded in a distorted bent 120 degrees geometry to one Sb(2) and one P(4) atom. In the fourth O site, O(4) is bonded in a distorted bent 120 degrees geometry to one Sb(1) and one P(3) atom. In the fifth O site, O(5) is bonded in a 3-coordinate geometry to one Sn(1), one Sb(2), and one P(2) atom. In the sixth O site, O(6) is bonded in a bent 120 degrees geometry to one Sb(3) and one P(2) atom. In the seventh O site, O(7) is bonded in a distorted bent 120 degrees geometry to one Sb(2) and one P(3) atom. In the eighth O site, O(8) is bonded in a 3-coordinate geometry to one Sb(1), one Sb(3), and one P(3) atom. In the ninth O site, O(9) is bonded in a bent 120 degrees geometry to one Sn(1) and one P(2) atom. In the tenth O site, O(10) is bonded in a distorted bent 120 degrees geometry to one Sb(3) and one P(1) atom. In the eleventh O site, O(11) is bonded in a 3-coordinate geometry to one Sn(1), one Sb(2), and one P(4) atom. In the twelfth O site, O(12) is bonded in a bent 120 degrees geometry to one Sb(1) and one P(4) atom. is represented by the CIF card [CIF]
data_SnSb3(PO4)4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.040
_cell_length_b   4.832
_cell_length_c   10.082
_cell_angle_alpha   88.949
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   342.928
_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
  Sn  Sn0  1  0.500  0.895  0.707  1.0
  Sb  Sb1  1  0.000  0.101  0.294  1.0
  Sb  Sb2  1  0.000  0.392  0.798  1.0
  Sb  Sb3  1  0.500  0.599  0.202  1.0
  P  P4  1  0.500  0.157  0.399  1.0
  P  P5  1  0.500  0.330  0.901  1.0
  P  P6  1  0.000  0.674  0.097  1.0
  P  P7  1  0.000  0.837  0.600  1.0
  O  O8  1  0.500  0.222  0.548  1.0
  O  O9  1  0.330  0.304  0.323  1.0
  O  O10  1  0.670  0.304  0.323  1.0
  O  O11  1  0.000  0.155  0.615  1.0
  O  O12  1  0.000  0.356  0.111  1.0
  O  O13  1  0.328  0.199  0.824  1.0
  O  O14  1  0.672  0.199  0.824  1.0
  O  O15  1  0.500  0.255  0.049  1.0
  O  O16  1  0.000  0.753  0.950  1.0
  O  O17  1  0.830  0.810  0.177  1.0
  O  O18  1  0.170  0.810  0.177  1.0
  O  O19  1  0.500  0.651  0.888  1.0
  O  O20  1  0.500  0.842  0.384  1.0
  O  O21  1  0.828  0.697  0.679  1.0
  O  O22  1  0.172  0.697  0.679  1.0
  O  O23  1  0.000  0.762  0.454  1.0
[/CIF]
.
The crystal structure described by SnSb3(PO4)4 crystallizes in the monoclinic Pm space group. Sn(1) is bonded to one O(1), one O(9), two equivalent O(11), and two equivalent O(5) atoms to form distorted SnO6 pentagonal pyramids that share corners with four equivalent Sb(2)O6 pentagonal pyramids,  a cornercorner with one P(1)O4 tetrahedra,  a cornercorner with one P(2)O4 tetrahedra, corners with two equivalent P(4)O4 tetrahedra, and  an edgeedge with one P(2)O4 tetrahedra. There are three inequivalent Sb sites. In the first Sb site, Sb(1) is bonded to one O(12), one O(4), two equivalent O(2), and two equivalent O(8) atoms to form distorted SbO6 pentagonal pyramids that share corners with four equivalent Sb(3)O6 pentagonal pyramids,  a cornercorner with one P(3)O4 tetrahedra,  a cornercorner with one P(4)O4 tetrahedra, corners with two equivalent P(1)O4 tetrahedra, and  an edgeedge with one P(3)O4 tetrahedra. In the second Sb site, Sb(2) is bonded to one O(3), one O(7), two equivalent O(11), and two equivalent O(5) atoms to form distorted SbO6 pentagonal pyramids that share corners with four equivalent Sn(1)O6 pentagonal pyramids,  a cornercorner with one P(3)O4 tetrahedra,  a cornercorner with one P(4)O4 tetrahedra, corners with two equivalent P(2)O4 tetrahedra, and  an edgeedge with one P(4)O4 tetrahedra. In the third Sb site, Sb(3) is bonded to one O(10), one O(6), two equivalent O(2), and two equivalent O(8) atoms to form distorted SbO6 pentagonal pyramids that share corners with four equivalent Sb(1)O6 pentagonal pyramids,  a cornercorner with one P(1)O4 tetrahedra,  a cornercorner with one P(2)O4 tetrahedra, corners with two equivalent P(3)O4 tetrahedra, and  an edgeedge with one P(1)O4 tetrahedra. There are four inequivalent P sites. In the first P site, P(1) is bonded to one O(1), one O(10), and two equivalent O(2) atoms to form PO4 tetrahedra that share  a cornercorner with one Sn(1)O6 pentagonal pyramid,  a cornercorner with one Sb(3)O6 pentagonal pyramid, corners with two equivalent Sb(1)O6 pentagonal pyramids, and  an edgeedge with one Sb(3)O6 pentagonal pyramid. In the second P site, P(2) is bonded to one O(6), one O(9), and two equivalent O(5) atoms to form PO4 tetrahedra that share  a cornercorner with one Sn(1)O6 pentagonal pyramid,  a cornercorner with one Sb(3)O6 pentagonal pyramid, corners with two equivalent Sb(2)O6 pentagonal pyramids, and  an edgeedge with one Sn(1)O6 pentagonal pyramid. In the third P site, P(3) is bonded to one O(4), one O(7), and two equivalent O(8) atoms to form PO4 tetrahedra that share  a cornercorner with one Sb(1)O6 pentagonal pyramid,  a cornercorner with one Sb(2)O6 pentagonal pyramid, corners with two equivalent Sb(3)O6 pentagonal pyramids, and  an edgeedge with one Sb(1)O6 pentagonal pyramid. In the fourth P site, P(4) is bonded to one O(12), one O(3), and two equivalent O(11) atoms to form PO4 tetrahedra that share  a cornercorner with one Sb(1)O6 pentagonal pyramid,  a cornercorner with one Sb(2)O6 pentagonal pyramid, corners with two equivalent Sn(1)O6 pentagonal pyramids, and  an edgeedge with one Sb(2)O6 pentagonal pyramid. There are twelve inequivalent O sites. In the first O site, O(1) is bonded in a bent 120 degrees geometry to one Sn(1) and one P(1) atom. In the second O site, O(2) is bonded in a 3-coordinate geometry to one Sb(1), one Sb(3), and one P(1) atom. In the third O site, O(3) is bonded in a distorted bent 120 degrees geometry to one Sb(2) and one P(4) atom. In the fourth O site, O(4) is bonded in a distorted bent 120 degrees geometry to one Sb(1) and one P(3) atom. In the fifth O site, O(5) is bonded in a 3-coordinate geometry to one Sn(1), one Sb(2), and one P(2) atom. In the sixth O site, O(6) is bonded in a bent 120 degrees geometry to one Sb(3) and one P(2) atom. In the seventh O site, O(7) is bonded in a distorted bent 120 degrees geometry to one Sb(2) and one P(3) atom. In the eighth O site, O(8) is bonded in a 3-coordinate geometry to one Sb(1), one Sb(3), and one P(3) atom. In the ninth O site, O(9) is bonded in a bent 120 degrees geometry to one Sn(1) and one P(2) atom. In the tenth O site, O(10) is bonded in a distorted bent 120 degrees geometry to one Sb(3) and one P(1) atom. In the eleventh O site, O(11) is bonded in a 3-coordinate geometry to one Sn(1), one Sb(2), and one P(4) atom. In the twelfth O site, O(12) is bonded in a bent 120 degrees geometry to one Sb(1) and one P(4) atom. is represented by the CIF card [CIF]
data_SnSb3(PO4)4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.040
_cell_length_b   4.832
_cell_length_c   10.082
_cell_angle_alpha   88.949
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   342.928
_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
  Sn  Sn0  1  0.500  0.895  0.707  1.0
  Sb  Sb1  1  0.000  0.101  0.294  1.0
  Sb  Sb2  1  0.000  0.392  0.798  1.0
  Sb  Sb3  1  0.500  0.599  0.202  1.0
  P  P4  1  0.500  0.157  0.399  1.0
  P  P5  1  0.500  0.330  0.901  1.0
  P  P6  1  0.000  0.674  0.097  1.0
  P  P7  1  0.000  0.837  0.600  1.0
  O  O8  1  0.500  0.222  0.548  1.0
  O  O9  1  0.330  0.304  0.323  1.0
  O  O10  1  0.670  0.304  0.323  1.0
  O  O11  1  0.000  0.155  0.615  1.0
  O  O12  1  0.000  0.356  0.111  1.0
  O  O13  1  0.328  0.199  0.824  1.0
  O  O14  1  0.672  0.199  0.824  1.0
  O  O15  1  0.500  0.255  0.049  1.0
  O  O16  1  0.000  0.753  0.950  1.0
  O  O17  1  0.830  0.810  0.177  1.0
  O  O18  1  0.170  0.810  0.177  1.0
  O  O19  1  0.500  0.651  0.888  1.0
  O  O20  1  0.500  0.842  0.384  1.0
  O  O21  1  0.828  0.697  0.679  1.0
  O  O22  1  0.172  0.697  0.679  1.0
  O  O23  1  0.000  0.762  0.454  1.0
[/CIF]
.