The material structure described by Bi3(AsO5)2 crystallizes in the triclinic P-1 space group. There are three inequivalent Bi sites. In the first Bi site, Bi(1) is bonded in a 6-coordinate geometry to one O(10), one O(2), one O(4), one O(5), and two equivalent O(1) atoms. In the second Bi site, Bi(2) is bonded to one O(1), one O(4), one O(5), one O(6), one O(7), and one O(8) atom to form distorted BiO6 pentagonal pyramids that share corners with two equivalent As(2)O4 tetrahedra and corners with three equivalent As(1)O4 tetrahedra. In the third Bi site, Bi(3) is bonded in a 8-coordinate geometry to one O(10), one O(2), one O(6), one O(8), two equivalent O(3), and two equivalent O(9) atoms. There are two inequivalent As sites. In the first As site, As(1) is bonded to one O(3), one O(4), one O(5), and one O(6) atom to form AsO4 tetrahedra that share corners with three equivalent Bi(2)O6 pentagonal pyramids. In the second As site, As(2) is bonded to one O(10), one O(7), one O(8), and one O(9) atom to form AsO4 tetrahedra that share corners with two equivalent Bi(2)O6 pentagonal pyramids. There are ten inequivalent O sites. In the first O site, O(1) is bonded in a trigonal non-coplanar geometry to one Bi(2) and two equivalent Bi(1) atoms. In the second O site, O(2) is bonded in a bent 120 degrees geometry to one Bi(1) and one Bi(3) atom. In the third O site, O(3) is bonded in a 3-coordinate geometry to two equivalent Bi(3) and one As(1) atom. In the fourth O site, O(4) is bonded in a 1-coordinate geometry to one Bi(1), one Bi(2), and one As(1) atom. In the fifth O site, O(5) is bonded in a 3-coordinate geometry to one Bi(1), one Bi(2), and one As(1) atom. In the sixth O site, O(6) is bonded in a 3-coordinate geometry to one Bi(2), one Bi(3), and one As(1) atom. In the seventh O site, O(7) is bonded in a distorted bent 120 degrees geometry to one Bi(2) and one As(2) atom. In the eighth O site, O(8) is bonded in a distorted bent 120 degrees geometry to one Bi(2), one Bi(3), and one As(2) atom. In the ninth O site, O(9) is bonded in a 3-coordinate geometry to two equivalent Bi(3) and one As(2) atom. In the tenth O site, O(10) is bonded in a 3-coordinate geometry to one Bi(1), one Bi(3), and one As(2) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Bi3(AsO5)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.053
_cell_length_b   7.369
_cell_length_c   9.558
_cell_angle_alpha   110.374
_cell_angle_beta   106.788
_cell_angle_gamma   91.906
_symmetry_Int_Tables_number   1
_cell_volume   440.833
_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
  Bi  Bi0  1  0.228  0.590  0.478  1.0
  Bi  Bi1  1  0.772  0.410  0.522  1.0
  Bi  Bi2  1  0.268  0.243  0.700  1.0
  Bi  Bi3  1  0.732  0.757  0.300  1.0
  Bi  Bi4  1  0.206  0.834  0.924  1.0
  Bi  Bi5  1  0.794  0.166  0.076  1.0
  As  As6  1  0.227  0.979  0.303  1.0
  As  As7  1  0.773  0.021  0.697  1.0
  As  As8  1  0.693  0.626  0.904  1.0
  As  As9  1  0.307  0.374  0.096  1.0
  O  O10  1  0.102  0.470  0.628  1.0
  O  O11  1  0.898  0.530  0.372  1.0
  O  O12  1  0.200  0.834  0.686  1.0
  O  O13  1  0.800  0.166  0.314  1.0
  O  O14  1  0.044  0.967  0.131  1.0
  O  O15  1  0.956  0.033  0.869  1.0
  O  O16  1  0.316  0.208  0.450  1.0
  O  O17  1  0.684  0.792  0.550  1.0
  O  O18  1  0.122  0.844  0.385  1.0
  O  O19  1  0.878  0.156  0.615  1.0
  O  O20  1  0.411  0.885  0.228  1.0
  O  O21  1  0.589  0.115  0.772  1.0
  O  O22  1  0.501  0.484  0.736  1.0
  O  O23  1  0.499  0.516  0.264  1.0
  O  O24  1  0.738  0.537  0.054  1.0
  O  O25  1  0.262  0.463  0.946  1.0
  O  O26  1  0.610  0.849  0.976  1.0
  O  O27  1  0.390  0.151  0.024  1.0
  O  O28  1  0.885  0.628  0.829  1.0
  O  O29  1  0.115  0.372  0.171  1.0
[/CIF]
.
The material structure described by Bi3(AsO5)2 crystallizes in the triclinic P-1 space group. There are three inequivalent Bi sites. In the first Bi site, Bi(1) is bonded in a 6-coordinate geometry to one O(10), one O(2), one O(4), one O(5), and two equivalent O(1) atoms. In the second Bi site, Bi(2) is bonded to one O(1), one O(4), one O(5), one O(6), one O(7), and one O(8) atom to form distorted BiO6 pentagonal pyramids that share corners with two equivalent As(2)O4 tetrahedra and corners with three equivalent As(1)O4 tetrahedra. In the third Bi site, Bi(3) is bonded in a 8-coordinate geometry to one O(10), one O(2), one O(6), one O(8), two equivalent O(3), and two equivalent O(9) atoms. There are two inequivalent As sites. In the first As site, As(1) is bonded to one O(3), one O(4), one O(5), and one O(6) atom to form AsO4 tetrahedra that share corners with three equivalent Bi(2)O6 pentagonal pyramids. In the second As site, As(2) is bonded to one O(10), one O(7), one O(8), and one O(9) atom to form AsO4 tetrahedra that share corners with two equivalent Bi(2)O6 pentagonal pyramids. There are ten inequivalent O sites. In the first O site, O(1) is bonded in a trigonal non-coplanar geometry to one Bi(2) and two equivalent Bi(1) atoms. In the second O site, O(2) is bonded in a bent 120 degrees geometry to one Bi(1) and one Bi(3) atom. In the third O site, O(3) is bonded in a 3-coordinate geometry to two equivalent Bi(3) and one As(1) atom. In the fourth O site, O(4) is bonded in a 1-coordinate geometry to one Bi(1), one Bi(2), and one As(1) atom. In the fifth O site, O(5) is bonded in a 3-coordinate geometry to one Bi(1), one Bi(2), and one As(1) atom. In the sixth O site, O(6) is bonded in a 3-coordinate geometry to one Bi(2), one Bi(3), and one As(1) atom. In the seventh O site, O(7) is bonded in a distorted bent 120 degrees geometry to one Bi(2) and one As(2) atom. In the eighth O site, O(8) is bonded in a distorted bent 120 degrees geometry to one Bi(2), one Bi(3), and one As(2) atom. In the ninth O site, O(9) is bonded in a 3-coordinate geometry to two equivalent Bi(3) and one As(2) atom. In the tenth O site, O(10) is bonded in a 3-coordinate geometry to one Bi(1), one Bi(3), and one As(2) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Bi3(AsO5)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.053
_cell_length_b   7.369
_cell_length_c   9.558
_cell_angle_alpha   110.374
_cell_angle_beta   106.788
_cell_angle_gamma   91.906
_symmetry_Int_Tables_number   1
_cell_volume   440.833
_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
  Bi  Bi0  1  0.228  0.590  0.478  1.0
  Bi  Bi1  1  0.772  0.410  0.522  1.0
  Bi  Bi2  1  0.268  0.243  0.700  1.0
  Bi  Bi3  1  0.732  0.757  0.300  1.0
  Bi  Bi4  1  0.206  0.834  0.924  1.0
  Bi  Bi5  1  0.794  0.166  0.076  1.0
  As  As6  1  0.227  0.979  0.303  1.0
  As  As7  1  0.773  0.021  0.697  1.0
  As  As8  1  0.693  0.626  0.904  1.0
  As  As9  1  0.307  0.374  0.096  1.0
  O  O10  1  0.102  0.470  0.628  1.0
  O  O11  1  0.898  0.530  0.372  1.0
  O  O12  1  0.200  0.834  0.686  1.0
  O  O13  1  0.800  0.166  0.314  1.0
  O  O14  1  0.044  0.967  0.131  1.0
  O  O15  1  0.956  0.033  0.869  1.0
  O  O16  1  0.316  0.208  0.450  1.0
  O  O17  1  0.684  0.792  0.550  1.0
  O  O18  1  0.122  0.844  0.385  1.0
  O  O19  1  0.878  0.156  0.615  1.0
  O  O20  1  0.411  0.885  0.228  1.0
  O  O21  1  0.589  0.115  0.772  1.0
  O  O22  1  0.501  0.484  0.736  1.0
  O  O23  1  0.499  0.516  0.264  1.0
  O  O24  1  0.738  0.537  0.054  1.0
  O  O25  1  0.262  0.463  0.946  1.0
  O  O26  1  0.610  0.849  0.976  1.0
  O  O27  1  0.390  0.151  0.024  1.0
  O  O28  1  0.885  0.628  0.829  1.0
  O  O29  1  0.115  0.372  0.171  1.0
[/CIF]
.