The material structure described by BiMnAsO5 crystallizes in the triclinic P-1 space group. Mn(1) is bonded to one O(2), one O(3), one O(4), one O(5), and two equivalent O(1) atoms to form MnO6 octahedra that share  a cornercorner with one Bi(1)O5 square pyramid, corners with four equivalent As(1)O4 tetrahedra,  an edgeedge with one Mn(1)O6 octahedra, and edges with three equivalent Bi(1)O5 square pyramids. Bi(1) is bonded to one O(2), one O(3), one O(5), and two equivalent O(1) atoms to form distorted BiO5 square pyramids that share  a cornercorner with one Mn(1)O6 octahedra, corners with three equivalent As(1)O4 tetrahedra, edges with three equivalent Mn(1)O6 octahedra, and  an edgeedge with one Bi(1)O5 square pyramid. The corner-sharing octahedral tilt angles are 43°. As(1) is bonded to one O(2), one O(3), one O(4), and one O(5) atom to form AsO4 tetrahedra that share corners with four equivalent Mn(1)O6 octahedra and corners with three equivalent Bi(1)O5 square pyramids. The corner-sharing octahedral tilt angles range from 50-56°. There are five inequivalent O sites. In the first O site, O(1) is bonded to two equivalent Mn(1) and two equivalent Bi(1) atoms to form edge-sharing OMn2Bi2 tetrahedra. In the second O site, O(2) is bonded in a 3-coordinate geometry to one Mn(1), one Bi(1), and one As(1) atom. In the third O site, O(3) is bonded in a distorted trigonal planar geometry to one Mn(1), one Bi(1), and one As(1) atom. In the fourth O site, O(4) is bonded in a bent 120 degrees geometry to one Mn(1) and one As(1) atom. In the fifth O site, O(5) is bonded in a distorted trigonal planar geometry to one Mn(1), one Bi(1), and one As(1) atom. is represented by the CIF file [CIF]
data_MnBiAsO5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.474
_cell_length_b   7.011
_cell_length_c   7.035
_cell_angle_alpha   109.338
_cell_angle_beta   96.676
_cell_angle_gamma   108.992
_symmetry_Int_Tables_number   1
_cell_volume   233.193
_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
  As  As0  1  0.350  0.119  0.822  1.0
  As  As1  1  0.650  0.881  0.178  1.0
  Bi  Bi2  1  0.908  0.472  0.245  1.0
  Bi  Bi3  1  0.092  0.528  0.755  1.0
  Mn  Mn4  1  0.673  0.783  0.633  1.0
  Mn  Mn5  1  0.327  0.217  0.367  1.0
  O  O6  1  0.735  0.453  0.499  1.0
  O  O7  1  0.265  0.547  0.501  1.0
  O  O8  1  0.569  0.708  0.917  1.0
  O  O9  1  0.431  0.292  0.083  1.0
  O  O10  1  0.223  0.226  0.663  1.0
  O  O11  1  0.777  0.774  0.337  1.0
  O  O12  1  0.367  0.908  0.240  1.0
  O  O13  1  0.633  0.092  0.760  1.0
  O  O14  1  0.094  0.874  0.782  1.0
  O  O15  1  0.906  0.126  0.218  1.0
[/CIF]
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The material structure described by BiMnAsO5 crystallizes in the triclinic P-1 space group. Mn(1) is bonded to one O(2), one O(3), one O(4), one O(5), and two equivalent O(1) atoms to form MnO6 octahedra that share  a cornercorner with one Bi(1)O5 square pyramid, corners with four equivalent As(1)O4 tetrahedra,  an edgeedge with one Mn(1)O6 octahedra, and edges with three equivalent Bi(1)O5 square pyramids. Bi(1) is bonded to one O(2), one O(3), one O(5), and two equivalent O(1) atoms to form distorted BiO5 square pyramids that share  a cornercorner with one Mn(1)O6 octahedra, corners with three equivalent As(1)O4 tetrahedra, edges with three equivalent Mn(1)O6 octahedra, and  an edgeedge with one Bi(1)O5 square pyramid. The corner-sharing octahedral tilt angles are 43°. As(1) is bonded to one O(2), one O(3), one O(4), and one O(5) atom to form AsO4 tetrahedra that share corners with four equivalent Mn(1)O6 octahedra and corners with three equivalent Bi(1)O5 square pyramids. The corner-sharing octahedral tilt angles range from 50-56°. There are five inequivalent O sites. In the first O site, O(1) is bonded to two equivalent Mn(1) and two equivalent Bi(1) atoms to form edge-sharing OMn2Bi2 tetrahedra. In the second O site, O(2) is bonded in a 3-coordinate geometry to one Mn(1), one Bi(1), and one As(1) atom. In the third O site, O(3) is bonded in a distorted trigonal planar geometry to one Mn(1), one Bi(1), and one As(1) atom. In the fourth O site, O(4) is bonded in a bent 120 degrees geometry to one Mn(1) and one As(1) atom. In the fifth O site, O(5) is bonded in a distorted trigonal planar geometry to one Mn(1), one Bi(1), and one As(1) atom. is represented by the CIF file [CIF]
data_MnBiAsO5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.474
_cell_length_b   7.011
_cell_length_c   7.035
_cell_angle_alpha   109.338
_cell_angle_beta   96.676
_cell_angle_gamma   108.992
_symmetry_Int_Tables_number   1
_cell_volume   233.193
_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
  As  As0  1  0.350  0.119  0.822  1.0
  As  As1  1  0.650  0.881  0.178  1.0
  Bi  Bi2  1  0.908  0.472  0.245  1.0
  Bi  Bi3  1  0.092  0.528  0.755  1.0
  Mn  Mn4  1  0.673  0.783  0.633  1.0
  Mn  Mn5  1  0.327  0.217  0.367  1.0
  O  O6  1  0.735  0.453  0.499  1.0
  O  O7  1  0.265  0.547  0.501  1.0
  O  O8  1  0.569  0.708  0.917  1.0
  O  O9  1  0.431  0.292  0.083  1.0
  O  O10  1  0.223  0.226  0.663  1.0
  O  O11  1  0.777  0.774  0.337  1.0
  O  O12  1  0.367  0.908  0.240  1.0
  O  O13  1  0.633  0.092  0.760  1.0
  O  O14  1  0.094  0.874  0.782  1.0
  O  O15  1  0.906  0.126  0.218  1.0
[/CIF]
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