The material described by P4O9 is Indium-like structured and crystallizes in the trigonal R-3c space group. The structure is zero-dimensional and consists of twelve tetraphosphorus nonoxide molecules. There are two inequivalent P sites. In the first P site, P(1) is bonded in a distorted T-shaped geometry to three equivalent O(1) atoms. In the second P site, P(2) is bonded to one O(1), one O(3), and two equivalent O(2) atoms to form corner-sharing PO4 tetrahedra. There are three inequivalent O sites. In the first O site, O(3) is bonded in a single-bond geometry to one P(2) atom. In the second O site, O(1) is bonded in a bent 120 degrees geometry to one P(1) and one P(2) atom. In the third O site, O(2) is bonded in a bent 120 degrees geometry to two equivalent P(2) atoms. is represented by the CIF card [CIF]
data_P4O9
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.950
_cell_length_b   9.950
_cell_length_c   9.950
_cell_angle_alpha   57.816
_cell_angle_beta   57.816
_cell_angle_gamma   57.816
_symmetry_Int_Tables_number   1
_cell_volume   661.558
_cell_formula_units_Z   4
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
  P  P0  1  0.574  0.574  0.574  1.0
  P  P1  1  0.926  0.926  0.926  1.0
  P  P2  1  0.426  0.426  0.426  1.0
  P  P3  1  0.074  0.074  0.074  1.0
  P  P4  1  0.803  0.730  0.480  1.0
  P  P5  1  0.480  0.803  0.730  1.0
  P  P6  1  0.730  0.480  0.803  1.0
  P  P7  1  0.770  0.697  0.020  1.0
  P  P8  1  0.020  0.770  0.697  1.0
  P  P9  1  0.697  0.020  0.770  1.0
  P  P10  1  0.197  0.270  0.520  1.0
  P  P11  1  0.520  0.197  0.270  1.0
  P  P12  1  0.270  0.520  0.197  1.0
  P  P13  1  0.230  0.303  0.980  1.0
  P  P14  1  0.980  0.230  0.303  1.0
  P  P15  1  0.303  0.980  0.230  1.0
  O  O16  1  0.726  0.659  0.438  1.0
  O  O17  1  0.438  0.726  0.659  1.0
  O  O18  1  0.659  0.438  0.726  1.0
  O  O19  1  0.841  0.774  0.062  1.0
  O  O20  1  0.062  0.841  0.774  1.0
  O  O21  1  0.774  0.062  0.841  1.0
  O  O22  1  0.274  0.341  0.562  1.0
  O  O23  1  0.562  0.274  0.341  1.0
  O  O24  1  0.341  0.562  0.274  1.0
  O  O25  1  0.159  0.226  0.938  1.0
  O  O26  1  0.938  0.159  0.226  1.0
  O  O27  1  0.226  0.938  0.159  1.0
  O  O28  1  0.857  0.573  0.638  1.0
  O  O29  1  0.638  0.857  0.573  1.0
  O  O30  1  0.573  0.638  0.857  1.0
  O  O31  1  0.927  0.643  0.862  1.0
  O  O32  1  0.862  0.927  0.643  1.0
  O  O33  1  0.643  0.862  0.927  1.0
  O  O34  1  0.143  0.427  0.362  1.0
  O  O35  1  0.362  0.143  0.427  1.0
  O  O36  1  0.427  0.362  0.143  1.0
  O  O37  1  0.073  0.357  0.138  1.0
  O  O38  1  0.138  0.073  0.357  1.0
  O  O39  1  0.357  0.138  0.073  1.0
  O  O40  1  0.936  0.796  0.348  1.0
  O  O41  1  0.348  0.936  0.796  1.0
  O  O42  1  0.796  0.348  0.936  1.0
  O  O43  1  0.704  0.564  0.152  1.0
  O  O44  1  0.152  0.704  0.564  1.0
  O  O45  1  0.564  0.152  0.704  1.0
  O  O46  1  0.064  0.204  0.652  1.0
  O  O47  1  0.652  0.064  0.204  1.0
  O  O48  1  0.204  0.652  0.064  1.0
  O  O49  1  0.296  0.436  0.848  1.0
  O  O50  1  0.848  0.296  0.436  1.0
  O  O51  1  0.436  0.848  0.296  1.0
[/CIF]
.
The material described by P4O9 is Indium-like structured and crystallizes in the trigonal R-3c space group. The structure is zero-dimensional and consists of twelve tetraphosphorus nonoxide molecules. There are two inequivalent P sites. In the first P site, P(1) is bonded in a distorted T-shaped geometry to three equivalent O(1) atoms. In the second P site, P(2) is bonded to one O(1), one O(3), and two equivalent O(2) atoms to form corner-sharing PO4 tetrahedra. There are three inequivalent O sites. In the first O site, O(3) is bonded in a single-bond geometry to one P(2) atom. In the second O site, O(1) is bonded in a bent 120 degrees geometry to one P(1) and one P(2) atom. In the third O site, O(2) is bonded in a bent 120 degrees geometry to two equivalent P(2) atoms. is represented by the CIF card [CIF]
data_P4O9
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.950
_cell_length_b   9.950
_cell_length_c   9.950
_cell_angle_alpha   57.816
_cell_angle_beta   57.816
_cell_angle_gamma   57.816
_symmetry_Int_Tables_number   1
_cell_volume   661.558
_cell_formula_units_Z   4
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
  P  P0  1  0.574  0.574  0.574  1.0
  P  P1  1  0.926  0.926  0.926  1.0
  P  P2  1  0.426  0.426  0.426  1.0
  P  P3  1  0.074  0.074  0.074  1.0
  P  P4  1  0.803  0.730  0.480  1.0
  P  P5  1  0.480  0.803  0.730  1.0
  P  P6  1  0.730  0.480  0.803  1.0
  P  P7  1  0.770  0.697  0.020  1.0
  P  P8  1  0.020  0.770  0.697  1.0
  P  P9  1  0.697  0.020  0.770  1.0
  P  P10  1  0.197  0.270  0.520  1.0
  P  P11  1  0.520  0.197  0.270  1.0
  P  P12  1  0.270  0.520  0.197  1.0
  P  P13  1  0.230  0.303  0.980  1.0
  P  P14  1  0.980  0.230  0.303  1.0
  P  P15  1  0.303  0.980  0.230  1.0
  O  O16  1  0.726  0.659  0.438  1.0
  O  O17  1  0.438  0.726  0.659  1.0
  O  O18  1  0.659  0.438  0.726  1.0
  O  O19  1  0.841  0.774  0.062  1.0
  O  O20  1  0.062  0.841  0.774  1.0
  O  O21  1  0.774  0.062  0.841  1.0
  O  O22  1  0.274  0.341  0.562  1.0
  O  O23  1  0.562  0.274  0.341  1.0
  O  O24  1  0.341  0.562  0.274  1.0
  O  O25  1  0.159  0.226  0.938  1.0
  O  O26  1  0.938  0.159  0.226  1.0
  O  O27  1  0.226  0.938  0.159  1.0
  O  O28  1  0.857  0.573  0.638  1.0
  O  O29  1  0.638  0.857  0.573  1.0
  O  O30  1  0.573  0.638  0.857  1.0
  O  O31  1  0.927  0.643  0.862  1.0
  O  O32  1  0.862  0.927  0.643  1.0
  O  O33  1  0.643  0.862  0.927  1.0
  O  O34  1  0.143  0.427  0.362  1.0
  O  O35  1  0.362  0.143  0.427  1.0
  O  O36  1  0.427  0.362  0.143  1.0
  O  O37  1  0.073  0.357  0.138  1.0
  O  O38  1  0.138  0.073  0.357  1.0
  O  O39  1  0.357  0.138  0.073  1.0
  O  O40  1  0.936  0.796  0.348  1.0
  O  O41  1  0.348  0.936  0.796  1.0
  O  O42  1  0.796  0.348  0.936  1.0
  O  O43  1  0.704  0.564  0.152  1.0
  O  O44  1  0.152  0.704  0.564  1.0
  O  O45  1  0.564  0.152  0.704  1.0
  O  O46  1  0.064  0.204  0.652  1.0
  O  O47  1  0.652  0.064  0.204  1.0
  O  O48  1  0.204  0.652  0.064  1.0
  O  O49  1  0.296  0.436  0.848  1.0
  O  O50  1  0.848  0.296  0.436  1.0
  O  O51  1  0.436  0.848  0.296  1.0
[/CIF]
.