The compound described by ReSi2(PO5)3 crystallizes in the triclinic P-1 space group. Re(1) is bonded to one O(1), one O(10), one O(11), one O(15), one O(3), and one O(5) atom to form distorted ReO6 octahedra that share  a cornercorner with one Re(1)O6 octahedra,  a cornercorner with one P(1)O4 tetrahedra,  a cornercorner with one P(2)O4 tetrahedra, and  a cornercorner with one P(3)O4 tetrahedra. The corner-sharing octahedra are not tilted. There are two inequivalent Si sites. In the first Si site, Si(1) is bonded to one O(12), one O(13), one O(14), one O(6), one O(7), and one O(8) atom to form SiO6 octahedra that share corners with two equivalent P(1)O4 tetrahedra, corners with two equivalent P(2)O4 tetrahedra, and corners with two equivalent P(3)O4 tetrahedra. In the second Si site, Si(2) is bonded to one O(16), one O(2), one O(4), and one O(9) atom to form SiO4 tetrahedra that share  a cornercorner with one Si(2)O4 tetrahedra,  a cornercorner with one P(1)O4 tetrahedra,  a cornercorner with one P(2)O4 tetrahedra, and  a cornercorner with one P(3)O4 tetrahedra. There are three inequivalent P sites. In the first P site, P(1) is bonded to one O(12), one O(16), one O(3), and one O(8) atom to form PO4 tetrahedra that share  a cornercorner with one Re(1)O6 octahedra, corners with two equivalent Si(1)O6 octahedra, and  a cornercorner with one Si(2)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 29-48°. In the second P site, P(2) is bonded to one O(11), one O(13), one O(6), and one O(9) atom to form PO4 tetrahedra that share  a cornercorner with one Re(1)O6 octahedra, corners with two equivalent Si(1)O6 octahedra, and  a cornercorner with one Si(2)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 29-47°. In the third P site, P(3) is bonded to one O(14), one O(4), one O(5), and one O(7) atom to form PO4 tetrahedra that share  a cornercorner with one Re(1)O6 octahedra, corners with two equivalent Si(1)O6 octahedra, and  a cornercorner with one Si(2)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 26-48°. There are sixteen inequivalent O sites. In the first O site, O(1) is bonded in a linear geometry to two equivalent Re(1) atoms. In the second O site, O(2) is bonded in a linear geometry to two equivalent Si(2) atoms. In the third O site, O(3) is bonded in a bent 150 degrees geometry to one Re(1) and one P(1) atom. In the fourth O site, O(4) is bonded in a bent 150 degrees geometry to one Si(2) and one P(3) atom. In the fifth O site, O(5) is bonded in a bent 150 degrees geometry to one Re(1) and one P(3) atom. In the sixth O site, O(6) is bonded in a distorted bent 120 degrees geometry to one Si(1) and one P(2) atom. In the seventh O site, O(7) is bonded in a bent 120 degrees geometry to one Si(1) and one P(3) atom. In the eighth O site, O(8) is bonded in a bent 150 degrees geometry to one Si(1) and one P(1) atom. In the ninth O site, O(9) is bonded in a bent 150 degrees geometry to one Si(2) and one P(2) atom. In the tenth O site, O(10) is bonded in a single-bond geometry to one Re(1) atom. In the eleventh O site, O(11) is bonded in a bent 150 degrees geometry to one Re(1) and one P(2) atom. In the twelfth O site, O(12) is bonded in a bent 120 degrees geometry to one Si(1) and one P(1) atom. In the thirteenth O site, O(13) is bonded in a bent 150 degrees geometry to one Si(1) and one P(2) atom. In the fourteenth O site, O(14) is bonded in a bent 150 degrees geometry to one Si(1) and one P(3) atom. In the fifteenth O site, O(15) is bonded in a single-bond geometry to one Re(1) atom. In the sixteenth O site, O(16) is bonded in a bent 150 degrees geometry to one Si(2) and one P(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_ReSi2(PO5)3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.885
_cell_length_b   7.885
_cell_length_c   10.872
_cell_angle_alpha   106.941
_cell_angle_beta   85.163
_cell_angle_gamma   119.885
_symmetry_Int_Tables_number   1
_cell_volume   559.179
_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
  Re  Re0  1  0.768  0.469  0.574  1.0
  Re  Re1  1  0.232  0.531  0.426  1.0
  Si  Si2  1  0.161  0.321  0.974  1.0
  Si  Si3  1  0.839  0.679  0.026  1.0
  Si  Si4  1  0.483  0.931  0.847  1.0
  Si  Si5  1  0.517  0.069  0.153  1.0
  P  P6  1  0.835  0.317  0.826  1.0
  P  P7  1  0.165  0.683  0.174  1.0
  P  P8  1  0.522  0.567  0.828  1.0
  P  P9  1  0.478  0.433  0.172  1.0
  P  P10  1  0.084  0.878  0.827  1.0
  P  P11  1  0.916  0.122  0.173  1.0
  O  O12  1  0.000  0.500  0.500  1.0
  O  O13  1  0.500  0.000  0.000  1.0
  O  O14  1  0.862  0.374  0.702  1.0
  O  O15  1  0.138  0.626  0.298  1.0
  O  O16  1  0.299  0.932  0.793  1.0
  O  O17  1  0.701  0.068  0.207  1.0
  O  O18  1  0.954  0.753  0.704  1.0
  O  O19  1  0.046  0.247  0.296  1.0
  O  O20  1  0.696  0.714  0.926  1.0
  O  O21  1  0.304  0.286  0.074  1.0
  O  O22  1  0.038  0.763  0.928  1.0
  O  O23  1  0.962  0.237  0.072  1.0
  O  O24  1  0.027  0.356  0.875  1.0
  O  O25  1  0.973  0.644  0.125  1.0
  O  O26  1  0.450  0.700  0.792  1.0
  O  O27  1  0.550  0.300  0.208  1.0
  O  O28  1  0.717  0.598  0.495  1.0
  O  O29  1  0.283  0.402  0.505  1.0
  O  O30  1  0.575  0.461  0.703  1.0
  O  O31  1  0.425  0.539  0.297  1.0
  O  O32  1  0.744  0.421  0.928  1.0
  O  O33  1  0.256  0.579  0.072  1.0
  O  O34  1  0.359  0.403  0.877  1.0
  O  O35  1  0.641  0.597  0.123  1.0
  O  O36  1  0.075  0.072  0.878  1.0
  O  O37  1  0.925  0.928  0.122  1.0
  O  O38  1  0.619  0.222  0.488  1.0
  O  O39  1  0.381  0.778  0.512  1.0
  O  O40  1  0.682  0.082  0.793  1.0
  O  O41  1  0.318  0.918  0.207  1.0
[/CIF]
.
The compound described by ReSi2(PO5)3 crystallizes in the triclinic P-1 space group. Re(1) is bonded to one O(1), one O(10), one O(11), one O(15), one O(3), and one O(5) atom to form distorted ReO6 octahedra that share  a cornercorner with one Re(1)O6 octahedra,  a cornercorner with one P(1)O4 tetrahedra,  a cornercorner with one P(2)O4 tetrahedra, and  a cornercorner with one P(3)O4 tetrahedra. The corner-sharing octahedra are not tilted. There are two inequivalent Si sites. In the first Si site, Si(1) is bonded to one O(12), one O(13), one O(14), one O(6), one O(7), and one O(8) atom to form SiO6 octahedra that share corners with two equivalent P(1)O4 tetrahedra, corners with two equivalent P(2)O4 tetrahedra, and corners with two equivalent P(3)O4 tetrahedra. In the second Si site, Si(2) is bonded to one O(16), one O(2), one O(4), and one O(9) atom to form SiO4 tetrahedra that share  a cornercorner with one Si(2)O4 tetrahedra,  a cornercorner with one P(1)O4 tetrahedra,  a cornercorner with one P(2)O4 tetrahedra, and  a cornercorner with one P(3)O4 tetrahedra. There are three inequivalent P sites. In the first P site, P(1) is bonded to one O(12), one O(16), one O(3), and one O(8) atom to form PO4 tetrahedra that share  a cornercorner with one Re(1)O6 octahedra, corners with two equivalent Si(1)O6 octahedra, and  a cornercorner with one Si(2)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 29-48°. In the second P site, P(2) is bonded to one O(11), one O(13), one O(6), and one O(9) atom to form PO4 tetrahedra that share  a cornercorner with one Re(1)O6 octahedra, corners with two equivalent Si(1)O6 octahedra, and  a cornercorner with one Si(2)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 29-47°. In the third P site, P(3) is bonded to one O(14), one O(4), one O(5), and one O(7) atom to form PO4 tetrahedra that share  a cornercorner with one Re(1)O6 octahedra, corners with two equivalent Si(1)O6 octahedra, and  a cornercorner with one Si(2)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 26-48°. There are sixteen inequivalent O sites. In the first O site, O(1) is bonded in a linear geometry to two equivalent Re(1) atoms. In the second O site, O(2) is bonded in a linear geometry to two equivalent Si(2) atoms. In the third O site, O(3) is bonded in a bent 150 degrees geometry to one Re(1) and one P(1) atom. In the fourth O site, O(4) is bonded in a bent 150 degrees geometry to one Si(2) and one P(3) atom. In the fifth O site, O(5) is bonded in a bent 150 degrees geometry to one Re(1) and one P(3) atom. In the sixth O site, O(6) is bonded in a distorted bent 120 degrees geometry to one Si(1) and one P(2) atom. In the seventh O site, O(7) is bonded in a bent 120 degrees geometry to one Si(1) and one P(3) atom. In the eighth O site, O(8) is bonded in a bent 150 degrees geometry to one Si(1) and one P(1) atom. In the ninth O site, O(9) is bonded in a bent 150 degrees geometry to one Si(2) and one P(2) atom. In the tenth O site, O(10) is bonded in a single-bond geometry to one Re(1) atom. In the eleventh O site, O(11) is bonded in a bent 150 degrees geometry to one Re(1) and one P(2) atom. In the twelfth O site, O(12) is bonded in a bent 120 degrees geometry to one Si(1) and one P(1) atom. In the thirteenth O site, O(13) is bonded in a bent 150 degrees geometry to one Si(1) and one P(2) atom. In the fourteenth O site, O(14) is bonded in a bent 150 degrees geometry to one Si(1) and one P(3) atom. In the fifteenth O site, O(15) is bonded in a single-bond geometry to one Re(1) atom. In the sixteenth O site, O(16) is bonded in a bent 150 degrees geometry to one Si(2) and one P(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_ReSi2(PO5)3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.885
_cell_length_b   7.885
_cell_length_c   10.872
_cell_angle_alpha   106.941
_cell_angle_beta   85.163
_cell_angle_gamma   119.885
_symmetry_Int_Tables_number   1
_cell_volume   559.179
_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
  Re  Re0  1  0.768  0.469  0.574  1.0
  Re  Re1  1  0.232  0.531  0.426  1.0
  Si  Si2  1  0.161  0.321  0.974  1.0
  Si  Si3  1  0.839  0.679  0.026  1.0
  Si  Si4  1  0.483  0.931  0.847  1.0
  Si  Si5  1  0.517  0.069  0.153  1.0
  P  P6  1  0.835  0.317  0.826  1.0
  P  P7  1  0.165  0.683  0.174  1.0
  P  P8  1  0.522  0.567  0.828  1.0
  P  P9  1  0.478  0.433  0.172  1.0
  P  P10  1  0.084  0.878  0.827  1.0
  P  P11  1  0.916  0.122  0.173  1.0
  O  O12  1  0.000  0.500  0.500  1.0
  O  O13  1  0.500  0.000  0.000  1.0
  O  O14  1  0.862  0.374  0.702  1.0
  O  O15  1  0.138  0.626  0.298  1.0
  O  O16  1  0.299  0.932  0.793  1.0
  O  O17  1  0.701  0.068  0.207  1.0
  O  O18  1  0.954  0.753  0.704  1.0
  O  O19  1  0.046  0.247  0.296  1.0
  O  O20  1  0.696  0.714  0.926  1.0
  O  O21  1  0.304  0.286  0.074  1.0
  O  O22  1  0.038  0.763  0.928  1.0
  O  O23  1  0.962  0.237  0.072  1.0
  O  O24  1  0.027  0.356  0.875  1.0
  O  O25  1  0.973  0.644  0.125  1.0
  O  O26  1  0.450  0.700  0.792  1.0
  O  O27  1  0.550  0.300  0.208  1.0
  O  O28  1  0.717  0.598  0.495  1.0
  O  O29  1  0.283  0.402  0.505  1.0
  O  O30  1  0.575  0.461  0.703  1.0
  O  O31  1  0.425  0.539  0.297  1.0
  O  O32  1  0.744  0.421  0.928  1.0
  O  O33  1  0.256  0.579  0.072  1.0
  O  O34  1  0.359  0.403  0.877  1.0
  O  O35  1  0.641  0.597  0.123  1.0
  O  O36  1  0.075  0.072  0.878  1.0
  O  O37  1  0.925  0.928  0.122  1.0
  O  O38  1  0.619  0.222  0.488  1.0
  O  O39  1  0.381  0.778  0.512  1.0
  O  O40  1  0.682  0.082  0.793  1.0
  O  O41  1  0.318  0.918  0.207  1.0
[/CIF]
.