The crystal structure described by Sr3P4O13 crystallizes in the triclinic P-1 space group. There are three inequivalent Sr sites. In the first Sr site, Sr(1) is bonded in a 7-coordinate geometry to one O(1), one O(10), one O(3), one O(6), one O(7), and two equivalent O(9) atoms. In the second Sr site, Sr(2) is bonded in a 8-coordinate geometry to one O(1), one O(10), one O(12), one O(13), one O(4), one O(6), and two equivalent O(8) atoms. In the third Sr site, Sr(3) is bonded in a 9-coordinate geometry to one O(10), one O(12), one O(13), one O(3), one O(7), one O(8), one O(9), and two equivalent O(4) atoms. There are four inequivalent P sites. In the first P site, P(1) is bonded to one O(2), one O(3), one O(5), and one O(6) atom to form corner-sharing PO4 tetrahedra. In the second P site, P(2) is bonded to one O(10), one O(11), one O(4), and one O(8) atom to form corner-sharing PO4 tetrahedra. In the third P site, P(3) is bonded to one O(12), one O(5), one O(7), and one O(9) atom to form corner-sharing PO4 tetrahedra. In the fourth P site, P(4) is bonded to one O(1), one O(11), one O(13), and one O(2) atom to form corner-sharing PO4 tetrahedra. There are thirteen inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to one Sr(1), one Sr(2), and one P(4) atom. In the second O site, O(2) is bonded in a bent 150 degrees geometry to one P(1) and one P(4) atom. In the third O site, O(3) is bonded in a 3-coordinate geometry to one Sr(1), one Sr(3), and one P(1) atom. In the fourth O site, O(4) is bonded in a distorted single-bond geometry to one Sr(2), two equivalent Sr(3), and one P(2) atom. In the fifth O site, O(5) is bonded in a bent 120 degrees geometry to one P(1) and one P(3) atom. In the sixth O site, O(6) is bonded in a distorted trigonal planar geometry to one Sr(1), one Sr(2), and one P(1) atom. In the seventh O site, O(7) is bonded in a distorted single-bond geometry to one Sr(1), one Sr(3), and one P(3) atom. In the eighth O site, O(8) is bonded in a distorted single-bond geometry to one Sr(3), two equivalent Sr(2), and one P(2) atom. In the ninth O site, O(9) is bonded in a distorted single-bond geometry to one Sr(3), two equivalent Sr(1), and one P(3) atom. In the tenth O site, O(10) is bonded in a distorted single-bond geometry to one Sr(1), one Sr(2), one Sr(3), and one P(2) atom. In the eleventh O site, O(11) is bonded in a bent 120 degrees geometry to one P(2) and one P(4) atom. In the twelfth O site, O(12) is bonded in a distorted single-bond geometry to one Sr(2), one Sr(3), and one P(3) atom. In the thirteenth O site, O(13) is bonded in a distorted single-bond geometry to one Sr(2), one Sr(3), and one P(4) atom. is represented by the CIF card [CIF]
data_Sr3P4O13
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.277
_cell_length_b   7.742
_cell_length_c   10.169
_cell_angle_alpha   102.472
_cell_angle_beta   103.346
_cell_angle_gamma   94.334
_symmetry_Int_Tables_number   1
_cell_volume   539.483
_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
  Sr  Sr0  1  0.785  0.771  0.374  1.0
  Sr  Sr1  1  0.215  0.229  0.626  1.0
  Sr  Sr2  1  0.708  0.218  0.138  1.0
  Sr  Sr3  1  0.292  0.782  0.862  1.0
  Sr  Sr4  1  0.752  0.019  0.758  1.0
  Sr  Sr5  1  0.248  0.981  0.242  1.0
  P  P6  1  0.140  0.463  0.348  1.0
  P  P7  1  0.860  0.537  0.652  1.0
  P  P8  1  0.825  0.811  0.022  1.0
  P  P9  1  0.175  0.189  0.978  1.0
  P  P10  1  0.671  0.190  0.488  1.0
  P  P11  1  0.329  0.810  0.512  1.0
  P  P12  1  0.638  0.461  0.860  1.0
  P  P13  1  0.362  0.539  0.140  1.0
  O  O14  1  0.455  0.512  0.788  1.0
  O  O15  1  0.545  0.488  0.212  1.0
  O  O16  1  0.791  0.469  0.772  1.0
  O  O17  1  0.209  0.531  0.228  1.0
  O  O18  1  0.185  0.282  0.362  1.0
  O  O19  1  0.815  0.718  0.638  1.0
  O  O20  1  0.991  0.809  0.958  1.0
  O  O21  1  0.009  0.191  0.042  1.0
  O  O22  1  0.741  0.402  0.515  1.0
  O  O23  1  0.259  0.598  0.485  1.0
  O  O24  1  0.934  0.487  0.319  1.0
  O  O25  1  0.066  0.513  0.681  1.0
  O  O26  1  0.528  0.180  0.573  1.0
  O  O27  1  0.472  0.820  0.427  1.0
  O  O28  1  0.338  0.100  0.047  1.0
  O  O29  1  0.662  0.900  0.953  1.0
  O  O30  1  0.153  0.895  0.456  1.0
  O  O31  1  0.847  0.105  0.544  1.0
  O  O32  1  0.120  0.116  0.821  1.0
  O  O33  1  0.880  0.884  0.179  1.0
  O  O34  1  0.263  0.396  0.999  1.0
  O  O35  1  0.737  0.604  0.001  1.0
  O  O36  1  0.403  0.873  0.667  1.0
  O  O37  1  0.597  0.127  0.333  1.0
  O  O38  1  0.370  0.717  0.106  1.0
  O  O39  1  0.630  0.283  0.894  1.0
[/CIF]
.
The crystal structure described by Sr3P4O13 crystallizes in the triclinic P-1 space group. There are three inequivalent Sr sites. In the first Sr site, Sr(1) is bonded in a 7-coordinate geometry to one O(1), one O(10), one O(3), one O(6), one O(7), and two equivalent O(9) atoms. In the second Sr site, Sr(2) is bonded in a 8-coordinate geometry to one O(1), one O(10), one O(12), one O(13), one O(4), one O(6), and two equivalent O(8) atoms. In the third Sr site, Sr(3) is bonded in a 9-coordinate geometry to one O(10), one O(12), one O(13), one O(3), one O(7), one O(8), one O(9), and two equivalent O(4) atoms. There are four inequivalent P sites. In the first P site, P(1) is bonded to one O(2), one O(3), one O(5), and one O(6) atom to form corner-sharing PO4 tetrahedra. In the second P site, P(2) is bonded to one O(10), one O(11), one O(4), and one O(8) atom to form corner-sharing PO4 tetrahedra. In the third P site, P(3) is bonded to one O(12), one O(5), one O(7), and one O(9) atom to form corner-sharing PO4 tetrahedra. In the fourth P site, P(4) is bonded to one O(1), one O(11), one O(13), and one O(2) atom to form corner-sharing PO4 tetrahedra. There are thirteen inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to one Sr(1), one Sr(2), and one P(4) atom. In the second O site, O(2) is bonded in a bent 150 degrees geometry to one P(1) and one P(4) atom. In the third O site, O(3) is bonded in a 3-coordinate geometry to one Sr(1), one Sr(3), and one P(1) atom. In the fourth O site, O(4) is bonded in a distorted single-bond geometry to one Sr(2), two equivalent Sr(3), and one P(2) atom. In the fifth O site, O(5) is bonded in a bent 120 degrees geometry to one P(1) and one P(3) atom. In the sixth O site, O(6) is bonded in a distorted trigonal planar geometry to one Sr(1), one Sr(2), and one P(1) atom. In the seventh O site, O(7) is bonded in a distorted single-bond geometry to one Sr(1), one Sr(3), and one P(3) atom. In the eighth O site, O(8) is bonded in a distorted single-bond geometry to one Sr(3), two equivalent Sr(2), and one P(2) atom. In the ninth O site, O(9) is bonded in a distorted single-bond geometry to one Sr(3), two equivalent Sr(1), and one P(3) atom. In the tenth O site, O(10) is bonded in a distorted single-bond geometry to one Sr(1), one Sr(2), one Sr(3), and one P(2) atom. In the eleventh O site, O(11) is bonded in a bent 120 degrees geometry to one P(2) and one P(4) atom. In the twelfth O site, O(12) is bonded in a distorted single-bond geometry to one Sr(2), one Sr(3), and one P(3) atom. In the thirteenth O site, O(13) is bonded in a distorted single-bond geometry to one Sr(2), one Sr(3), and one P(4) atom. is represented by the CIF card [CIF]
data_Sr3P4O13
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.277
_cell_length_b   7.742
_cell_length_c   10.169
_cell_angle_alpha   102.472
_cell_angle_beta   103.346
_cell_angle_gamma   94.334
_symmetry_Int_Tables_number   1
_cell_volume   539.483
_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
  Sr  Sr0  1  0.785  0.771  0.374  1.0
  Sr  Sr1  1  0.215  0.229  0.626  1.0
  Sr  Sr2  1  0.708  0.218  0.138  1.0
  Sr  Sr3  1  0.292  0.782  0.862  1.0
  Sr  Sr4  1  0.752  0.019  0.758  1.0
  Sr  Sr5  1  0.248  0.981  0.242  1.0
  P  P6  1  0.140  0.463  0.348  1.0
  P  P7  1  0.860  0.537  0.652  1.0
  P  P8  1  0.825  0.811  0.022  1.0
  P  P9  1  0.175  0.189  0.978  1.0
  P  P10  1  0.671  0.190  0.488  1.0
  P  P11  1  0.329  0.810  0.512  1.0
  P  P12  1  0.638  0.461  0.860  1.0
  P  P13  1  0.362  0.539  0.140  1.0
  O  O14  1  0.455  0.512  0.788  1.0
  O  O15  1  0.545  0.488  0.212  1.0
  O  O16  1  0.791  0.469  0.772  1.0
  O  O17  1  0.209  0.531  0.228  1.0
  O  O18  1  0.185  0.282  0.362  1.0
  O  O19  1  0.815  0.718  0.638  1.0
  O  O20  1  0.991  0.809  0.958  1.0
  O  O21  1  0.009  0.191  0.042  1.0
  O  O22  1  0.741  0.402  0.515  1.0
  O  O23  1  0.259  0.598  0.485  1.0
  O  O24  1  0.934  0.487  0.319  1.0
  O  O25  1  0.066  0.513  0.681  1.0
  O  O26  1  0.528  0.180  0.573  1.0
  O  O27  1  0.472  0.820  0.427  1.0
  O  O28  1  0.338  0.100  0.047  1.0
  O  O29  1  0.662  0.900  0.953  1.0
  O  O30  1  0.153  0.895  0.456  1.0
  O  O31  1  0.847  0.105  0.544  1.0
  O  O32  1  0.120  0.116  0.821  1.0
  O  O33  1  0.880  0.884  0.179  1.0
  O  O34  1  0.263  0.396  0.999  1.0
  O  O35  1  0.737  0.604  0.001  1.0
  O  O36  1  0.403  0.873  0.667  1.0
  O  O37  1  0.597  0.127  0.333  1.0
  O  O38  1  0.370  0.717  0.106  1.0
  O  O39  1  0.630  0.283  0.894  1.0
[/CIF]
.