The material described by AlPO4 is quartz (alpha)-derived structured and crystallizes in the triclinic P-1 space group. There are four inequivalent Al sites. In the first Al site, Al(1) is bonded to one O(1), one O(3), one O(7), and one O(8) atom to form AlO4 tetrahedra that share  a cornercorner with one P(1)O4 tetrahedra,  a cornercorner with one P(4)O4 tetrahedra, and corners with two equivalent P(2)O4 tetrahedra. In the second Al site, Al(2) is bonded to one O(11), one O(14), one O(4), and one O(6) atom to form AlO4 tetrahedra that share  a cornercorner with one P(1)O4 tetrahedra,  a cornercorner with one P(2)O4 tetrahedra,  a cornercorner with one P(3)O4 tetrahedra, and  a cornercorner with one P(4)O4 tetrahedra. In the third Al site, Al(3) is bonded to one O(10), one O(13), one O(16), and one O(9) atom to form AlO4 tetrahedra that share  a cornercorner with one P(1)O4 tetrahedra,  a cornercorner with one P(3)O4 tetrahedra, and corners with two equivalent P(4)O4 tetrahedra. In the fourth Al site, Al(4) is bonded to one O(12), one O(15), one O(2), and one O(5) atom to form AlO4 tetrahedra that share  a cornercorner with one P(1)O4 tetrahedra,  a cornercorner with one P(2)O4 tetrahedra, and corners with two equivalent P(3)O4 tetrahedra. There are four inequivalent P sites. In the first P site, P(1) is bonded to one O(10), one O(5), one O(6), and one O(8) atom to form PO4 tetrahedra that share  a cornercorner with one Al(1)O4 tetrahedra,  a cornercorner with one Al(2)O4 tetrahedra,  a cornercorner with one Al(3)O4 tetrahedra, and  a cornercorner with one Al(4)O4 tetrahedra. In the second P site, P(2) is bonded to one O(1), one O(2), one O(4), and one O(7) atom to form PO4 tetrahedra that share  a cornercorner with one Al(2)O4 tetrahedra,  a cornercorner with one Al(4)O4 tetrahedra, and corners with two equivalent Al(1)O4 tetrahedra. In the third P site, P(3) is bonded to one O(12), one O(13), one O(14), and one O(15) atom to form PO4 tetrahedra that share  a cornercorner with one Al(2)O4 tetrahedra,  a cornercorner with one Al(3)O4 tetrahedra, and corners with two equivalent Al(4)O4 tetrahedra. In the fourth P site, P(4) is bonded to one O(11), one O(16), one O(3), and one O(9) atom to form PO4 tetrahedra that share  a cornercorner with one Al(1)O4 tetrahedra,  a cornercorner with one Al(2)O4 tetrahedra, and corners with two equivalent Al(3)O4 tetrahedra. There are sixteen inequivalent O sites. In the first O site, O(1) is bonded in a distorted bent 150 degrees geometry to one Al(1) and one P(2) atom. In the second O site, O(2) is bonded in a bent 150 degrees geometry to one Al(4) and one P(2) atom. In the third O site, O(3) is bonded in a bent 150 degrees geometry to one Al(1) and one P(4) atom. In the fourth O site, O(4) is bonded in a bent 150 degrees geometry to one Al(2) and one P(2) atom. In the fifth O site, O(5) is bonded in a bent 150 degrees geometry to one Al(4) and one P(1) atom. In the sixth O site, O(6) is bonded in a bent 150 degrees geometry to one Al(2) and one P(1) atom. In the seventh O site, O(7) is bonded in a bent 150 degrees geometry to one Al(1) and one P(2) atom. In the eighth O site, O(8) is bonded in a bent 150 degrees geometry to one Al(1) and one P(1) atom. In the ninth O site, O(9) is bonded in a bent 150 degrees geometry to one Al(3) and one P(4) atom. In the tenth O site, O(10) is bonded in a bent 150 degrees geometry to one Al(3) and one P(1) atom. In the eleventh O site, O(11) is bonded in a bent 150 degrees geometry to one Al(2) and one P(4) atom. In the twelfth O site, O(12) is bonded in a bent 150 degrees geometry to one Al(4) and one P(3) atom. In the thirteenth O site, O(13) is bonded in a bent 120 degrees geometry to one Al(3) and one P(3) atom. In the fourteenth O site, O(14) is bonded in a bent 150 degrees geometry to one Al(2) and one P(3) atom. In the fifteenth O site, O(15) is bonded in a bent 120 degrees geometry to one Al(4) and one P(3) atom. In the sixteenth O site, O(16) is bonded in a bent 150 degrees geometry to one Al(3) and one P(4) atom. is represented by the CIF card [CIF]
data_AlPO4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.857
_cell_length_b   8.885
_cell_length_c   12.908
_cell_angle_alpha   70.146
_cell_angle_beta   71.329
_cell_angle_gamma   74.910
_symmetry_Int_Tables_number   1
_cell_volume   891.989
_cell_formula_units_Z   8
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  0.302  0.583  0.631  1.0
  Al  Al1  1  0.698  0.417  0.369  1.0
  Al  Al2  1  0.681  0.385  0.815  1.0
  Al  Al3  1  0.319  0.615  0.185  1.0
  Al  Al4  1  0.022  0.737  0.942  1.0
  Al  Al5  1  0.978  0.263  0.058  1.0
  Al  Al6  1  0.486  0.027  0.176  1.0
  Al  Al7  1  0.514  0.973  0.824  1.0
  P  P8  1  0.604  0.327  0.187  1.0
  P  P9  1  0.396  0.673  0.813  1.0
  P  P10  1  0.601  0.291  0.628  1.0
  P  P11  1  0.399  0.709  0.372  1.0
  P  P12  1  0.740  0.008  0.956  1.0
  P  P13  1  0.260  0.992  0.044  1.0
  P  P14  1  0.981  0.513  0.819  1.0
  P  P15  1  0.019  0.487  0.181  1.0
  O  O16  1  0.704  0.294  0.507  1.0
  O  O17  1  0.296  0.706  0.493  1.0
  O  O18  1  0.572  0.117  0.694  1.0
  O  O19  1  0.428  0.883  0.306  1.0
  O  O20  1  0.114  0.527  0.707  1.0
  O  O21  1  0.886  0.473  0.293  1.0
  O  O22  1  0.693  0.351  0.686  1.0
  O  O23  1  0.307  0.649  0.314  1.0
  O  O24  1  0.502  0.199  0.206  1.0
  O  O25  1  0.498  0.801  0.794  1.0
  O  O26  1  0.511  0.498  0.142  1.0
  O  O27  1  0.489  0.502  0.858  1.0
  O  O28  1  0.436  0.401  0.624  1.0
  O  O29  1  0.564  0.599  0.376  1.0
  O  O30  1  0.635  0.311  0.302  1.0
  O  O31  1  0.365  0.689  0.698  1.0
  O  O32  1  0.949  0.668  0.857  1.0
  O  O33  1  0.051  0.332  0.143  1.0
  O  O34  1  0.766  0.299  0.100  1.0
  O  O35  1  0.234  0.701  0.900  1.0
  O  O36  1  0.827  0.496  0.798  1.0
  O  O37  1  0.173  0.504  0.202  1.0
  O  O38  1  0.658  0.934  0.900  1.0
  O  O39  1  0.342  0.066  0.100  1.0
  O  O40  1  0.923  0.940  0.928  1.0
  O  O41  1  0.077  0.060  0.072  1.0
  O  O42  1  0.712  0.194  0.912  1.0
  O  O43  1  0.288  0.806  0.088  1.0
  O  O44  1  0.671  0.958  0.087  1.0
  O  O45  1  0.329  0.042  0.913  1.0
  O  O46  1  0.036  0.366  0.913  1.0
  O  O47  1  0.964  0.634  0.087  1.0
[/CIF]
.
The material described by AlPO4 is quartz (alpha)-derived structured and crystallizes in the triclinic P-1 space group. There are four inequivalent Al sites. In the first Al site, Al(1) is bonded to one O(1), one O(3), one O(7), and one O(8) atom to form AlO4 tetrahedra that share  a cornercorner with one P(1)O4 tetrahedra,  a cornercorner with one P(4)O4 tetrahedra, and corners with two equivalent P(2)O4 tetrahedra. In the second Al site, Al(2) is bonded to one O(11), one O(14), one O(4), and one O(6) atom to form AlO4 tetrahedra that share  a cornercorner with one P(1)O4 tetrahedra,  a cornercorner with one P(2)O4 tetrahedra,  a cornercorner with one P(3)O4 tetrahedra, and  a cornercorner with one P(4)O4 tetrahedra. In the third Al site, Al(3) is bonded to one O(10), one O(13), one O(16), and one O(9) atom to form AlO4 tetrahedra that share  a cornercorner with one P(1)O4 tetrahedra,  a cornercorner with one P(3)O4 tetrahedra, and corners with two equivalent P(4)O4 tetrahedra. In the fourth Al site, Al(4) is bonded to one O(12), one O(15), one O(2), and one O(5) atom to form AlO4 tetrahedra that share  a cornercorner with one P(1)O4 tetrahedra,  a cornercorner with one P(2)O4 tetrahedra, and corners with two equivalent P(3)O4 tetrahedra. There are four inequivalent P sites. In the first P site, P(1) is bonded to one O(10), one O(5), one O(6), and one O(8) atom to form PO4 tetrahedra that share  a cornercorner with one Al(1)O4 tetrahedra,  a cornercorner with one Al(2)O4 tetrahedra,  a cornercorner with one Al(3)O4 tetrahedra, and  a cornercorner with one Al(4)O4 tetrahedra. In the second P site, P(2) is bonded to one O(1), one O(2), one O(4), and one O(7) atom to form PO4 tetrahedra that share  a cornercorner with one Al(2)O4 tetrahedra,  a cornercorner with one Al(4)O4 tetrahedra, and corners with two equivalent Al(1)O4 tetrahedra. In the third P site, P(3) is bonded to one O(12), one O(13), one O(14), and one O(15) atom to form PO4 tetrahedra that share  a cornercorner with one Al(2)O4 tetrahedra,  a cornercorner with one Al(3)O4 tetrahedra, and corners with two equivalent Al(4)O4 tetrahedra. In the fourth P site, P(4) is bonded to one O(11), one O(16), one O(3), and one O(9) atom to form PO4 tetrahedra that share  a cornercorner with one Al(1)O4 tetrahedra,  a cornercorner with one Al(2)O4 tetrahedra, and corners with two equivalent Al(3)O4 tetrahedra. There are sixteen inequivalent O sites. In the first O site, O(1) is bonded in a distorted bent 150 degrees geometry to one Al(1) and one P(2) atom. In the second O site, O(2) is bonded in a bent 150 degrees geometry to one Al(4) and one P(2) atom. In the third O site, O(3) is bonded in a bent 150 degrees geometry to one Al(1) and one P(4) atom. In the fourth O site, O(4) is bonded in a bent 150 degrees geometry to one Al(2) and one P(2) atom. In the fifth O site, O(5) is bonded in a bent 150 degrees geometry to one Al(4) and one P(1) atom. In the sixth O site, O(6) is bonded in a bent 150 degrees geometry to one Al(2) and one P(1) atom. In the seventh O site, O(7) is bonded in a bent 150 degrees geometry to one Al(1) and one P(2) atom. In the eighth O site, O(8) is bonded in a bent 150 degrees geometry to one Al(1) and one P(1) atom. In the ninth O site, O(9) is bonded in a bent 150 degrees geometry to one Al(3) and one P(4) atom. In the tenth O site, O(10) is bonded in a bent 150 degrees geometry to one Al(3) and one P(1) atom. In the eleventh O site, O(11) is bonded in a bent 150 degrees geometry to one Al(2) and one P(4) atom. In the twelfth O site, O(12) is bonded in a bent 150 degrees geometry to one Al(4) and one P(3) atom. In the thirteenth O site, O(13) is bonded in a bent 120 degrees geometry to one Al(3) and one P(3) atom. In the fourteenth O site, O(14) is bonded in a bent 150 degrees geometry to one Al(2) and one P(3) atom. In the fifteenth O site, O(15) is bonded in a bent 120 degrees geometry to one Al(4) and one P(3) atom. In the sixteenth O site, O(16) is bonded in a bent 150 degrees geometry to one Al(3) and one P(4) atom. is represented by the CIF card [CIF]
data_AlPO4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.857
_cell_length_b   8.885
_cell_length_c   12.908
_cell_angle_alpha   70.146
_cell_angle_beta   71.329
_cell_angle_gamma   74.910
_symmetry_Int_Tables_number   1
_cell_volume   891.989
_cell_formula_units_Z   8
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  0.302  0.583  0.631  1.0
  Al  Al1  1  0.698  0.417  0.369  1.0
  Al  Al2  1  0.681  0.385  0.815  1.0
  Al  Al3  1  0.319  0.615  0.185  1.0
  Al  Al4  1  0.022  0.737  0.942  1.0
  Al  Al5  1  0.978  0.263  0.058  1.0
  Al  Al6  1  0.486  0.027  0.176  1.0
  Al  Al7  1  0.514  0.973  0.824  1.0
  P  P8  1  0.604  0.327  0.187  1.0
  P  P9  1  0.396  0.673  0.813  1.0
  P  P10  1  0.601  0.291  0.628  1.0
  P  P11  1  0.399  0.709  0.372  1.0
  P  P12  1  0.740  0.008  0.956  1.0
  P  P13  1  0.260  0.992  0.044  1.0
  P  P14  1  0.981  0.513  0.819  1.0
  P  P15  1  0.019  0.487  0.181  1.0
  O  O16  1  0.704  0.294  0.507  1.0
  O  O17  1  0.296  0.706  0.493  1.0
  O  O18  1  0.572  0.117  0.694  1.0
  O  O19  1  0.428  0.883  0.306  1.0
  O  O20  1  0.114  0.527  0.707  1.0
  O  O21  1  0.886  0.473  0.293  1.0
  O  O22  1  0.693  0.351  0.686  1.0
  O  O23  1  0.307  0.649  0.314  1.0
  O  O24  1  0.502  0.199  0.206  1.0
  O  O25  1  0.498  0.801  0.794  1.0
  O  O26  1  0.511  0.498  0.142  1.0
  O  O27  1  0.489  0.502  0.858  1.0
  O  O28  1  0.436  0.401  0.624  1.0
  O  O29  1  0.564  0.599  0.376  1.0
  O  O30  1  0.635  0.311  0.302  1.0
  O  O31  1  0.365  0.689  0.698  1.0
  O  O32  1  0.949  0.668  0.857  1.0
  O  O33  1  0.051  0.332  0.143  1.0
  O  O34  1  0.766  0.299  0.100  1.0
  O  O35  1  0.234  0.701  0.900  1.0
  O  O36  1  0.827  0.496  0.798  1.0
  O  O37  1  0.173  0.504  0.202  1.0
  O  O38  1  0.658  0.934  0.900  1.0
  O  O39  1  0.342  0.066  0.100  1.0
  O  O40  1  0.923  0.940  0.928  1.0
  O  O41  1  0.077  0.060  0.072  1.0
  O  O42  1  0.712  0.194  0.912  1.0
  O  O43  1  0.288  0.806  0.088  1.0
  O  O44  1  0.671  0.958  0.087  1.0
  O  O45  1  0.329  0.042  0.913  1.0
  O  O46  1  0.036  0.366  0.913  1.0
  O  O47  1  0.964  0.634  0.087  1.0
[/CIF]
.