The crystal structure described by AlPO4 is Low Tridymite-derived structured and crystallizes in the monoclinic P2_1 space group. Al(1) is bonded to one O(1), one O(2), one O(3), and one O(4) atom to form AlO4 tetrahedra that share corners with four equivalent P(1)O4 tetrahedra. P(1) is bonded to one O(1), one O(2), one O(3), and one O(4) atom to form PO4 tetrahedra that share corners with four equivalent Al(1)O4 tetrahedra. There are four inequivalent O sites. In the first O site, O(1) is bonded in a bent 150 degrees geometry to one Al(1) and one P(1) atom. In the second O site, O(2) is bonded in a bent 150 degrees geometry to one Al(1) and one P(1) atom. In the third O site, O(3) is bonded in a linear geometry to one Al(1) and one P(1) atom. In the fourth O site, O(4) is bonded in a bent 150 degrees geometry to one Al(1) and one P(1) atom. is represented by the CIF file [CIF]
data_AlPO4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.061
_cell_length_b   4.982
_cell_length_c   8.271
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   118.561
_symmetry_Int_Tables_number   1
_cell_volume   183.174
_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
  Al  Al0  1  0.345  0.580  0.932  1.0
  Al  Al1  1  0.655  0.420  0.432  1.0
  P  P2  1  0.310  0.748  0.558  1.0
  P  P3  1  0.690  0.252  0.058  1.0
  O  O4  1  0.404  0.566  0.446  1.0
  O  O5  1  0.596  0.434  0.946  1.0
  O  O6  1  0.529  0.088  0.544  1.0
  O  O7  1  0.471  0.912  0.044  1.0
  O  O8  1  0.309  0.649  0.732  1.0
  O  O9  1  0.691  0.351  0.232  1.0
  O  O10  1  0.003  0.309  0.011  1.0
  O  O11  1  0.997  0.691  0.511  1.0
[/CIF]
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The crystal structure described by AlPO4 is Low Tridymite-derived structured and crystallizes in the monoclinic P2_1 space group. Al(1) is bonded to one O(1), one O(2), one O(3), and one O(4) atom to form AlO4 tetrahedra that share corners with four equivalent P(1)O4 tetrahedra. P(1) is bonded to one O(1), one O(2), one O(3), and one O(4) atom to form PO4 tetrahedra that share corners with four equivalent Al(1)O4 tetrahedra. There are four inequivalent O sites. In the first O site, O(1) is bonded in a bent 150 degrees geometry to one Al(1) and one P(1) atom. In the second O site, O(2) is bonded in a bent 150 degrees geometry to one Al(1) and one P(1) atom. In the third O site, O(3) is bonded in a linear geometry to one Al(1) and one P(1) atom. In the fourth O site, O(4) is bonded in a bent 150 degrees geometry to one Al(1) and one P(1) atom. is represented by the CIF file [CIF]
data_AlPO4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.061
_cell_length_b   4.982
_cell_length_c   8.271
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   118.561
_symmetry_Int_Tables_number   1
_cell_volume   183.174
_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
  Al  Al0  1  0.345  0.580  0.932  1.0
  Al  Al1  1  0.655  0.420  0.432  1.0
  P  P2  1  0.310  0.748  0.558  1.0
  P  P3  1  0.690  0.252  0.058  1.0
  O  O4  1  0.404  0.566  0.446  1.0
  O  O5  1  0.596  0.434  0.946  1.0
  O  O6  1  0.529  0.088  0.544  1.0
  O  O7  1  0.471  0.912  0.044  1.0
  O  O8  1  0.309  0.649  0.732  1.0
  O  O9  1  0.691  0.351  0.232  1.0
  O  O10  1  0.003  0.309  0.011  1.0
  O  O11  1  0.997  0.691  0.511  1.0
[/CIF]
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