The structure described by Sr(Ni5P3)2 crystallizes in the orthorhombic Cmce space group. Sr(1) is bonded in a 18-coordinate geometry to four equivalent Ni(4), six equivalent Ni(3), two equivalent P(2), two equivalent P(3), and four equivalent P(1) atoms. There are four inequivalent Ni sites. In the first Ni site, Ni(1) is bonded in a 4-coordinate geometry to two equivalent P(1) and two equivalent P(3) atoms. In the second Ni site, Ni(2) is bonded in a 4-coordinate geometry to two equivalent P(2) and two equivalent P(3) atoms. In the third Ni site, Ni(3) is bonded to three equivalent Sr(1), two equivalent P(1), and two equivalent P(2) atoms to form distorted NiSr3P4 tetrahedra that share corners with six equivalent Ni(4)SrP4 tetrahedra, corners with nine equivalent Ni(3)Sr3P4 tetrahedra, edges with four equivalent Ni(4)SrP4 tetrahedra, faces with two equivalent Ni(4)SrP4 tetrahedra, and faces with three equivalent Ni(3)Sr3P4 tetrahedra. In the fourth Ni site, Ni(4) is bonded to one Sr(1), one P(1), one P(2), and two equivalent P(3) atoms to form distorted NiSrP4 tetrahedra that share corners with three equivalent Ni(3)Sr3P4 tetrahedra, corners with five equivalent Ni(4)SrP4 tetrahedra, edges with two equivalent Ni(3)Sr3P4 tetrahedra, edges with three equivalent Ni(4)SrP4 tetrahedra, and  a faceface with one Ni(3)Sr3P4 tetrahedra. There are three inequivalent P sites. In the first P site, P(1) is bonded in a 8-coordinate geometry to two equivalent Sr(1), two equivalent Ni(1), two equivalent Ni(3), and two equivalent Ni(4) atoms. In the second P site, P(2) is bonded in a 6-coordinate geometry to one Sr(1), two equivalent Ni(2), two equivalent Ni(3), and two equivalent Ni(4) atoms. In the third P site, P(3) is bonded in a 9-coordinate geometry to one Sr(1), two equivalent Ni(1), two equivalent Ni(2), and four equivalent Ni(4) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Sr(Ni5P3)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.654
_cell_length_b   8.654
_cell_length_c   8.726
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   136.386
_symmetry_Int_Tables_number   1
_cell_volume   450.835
_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  0.000  0.000  0.500  1.0
  Sr  Sr1  1  0.500  0.500  0.000  1.0
  Ni  Ni2  1  0.207  0.793  0.291  1.0
  Ni  Ni3  1  0.293  0.707  0.791  1.0
  Ni  Ni4  1  0.914  0.586  0.750  1.0
  Ni  Ni5  1  0.707  0.293  0.209  1.0
  Ni  Ni6  1  0.086  0.414  0.250  1.0
  Ni  Ni7  1  0.414  0.086  0.750  1.0
  Ni  Ni8  1  0.956  0.044  0.881  1.0
  Ni  Ni9  1  0.044  0.956  0.119  1.0
  Ni  Ni10  1  0.544  0.456  0.381  1.0
  Ni  Ni11  1  0.456  0.544  0.619  1.0
  Ni  Ni12  1  0.473  0.126  0.470  1.0
  Ni  Ni13  1  0.126  0.473  0.530  1.0
  Ni  Ni14  1  0.027  0.374  0.970  1.0
  Ni  Ni15  1  0.374  0.027  0.030  1.0
  Ni  Ni16  1  0.527  0.874  0.530  1.0
  Ni  Ni17  1  0.874  0.527  0.470  1.0
  Ni  Ni18  1  0.973  0.626  0.030  1.0
  Ni  Ni19  1  0.626  0.973  0.970  1.0
  Ni  Ni20  1  0.586  0.914  0.250  1.0
  Ni  Ni21  1  0.793  0.207  0.709  1.0
  P  P22  1  0.144  0.356  0.750  1.0
  P  P23  1  0.356  0.144  0.250  1.0
  P  P24  1  0.409  0.591  0.371  1.0
  P  P25  1  0.591  0.409  0.629  1.0
  P  P26  1  0.091  0.909  0.871  1.0
  P  P27  1  0.909  0.091  0.129  1.0
  P  P28  1  0.292  0.708  0.073  1.0
  P  P29  1  0.708  0.292  0.927  1.0
  P  P30  1  0.208  0.792  0.573  1.0
  P  P31  1  0.792  0.208  0.427  1.0
  P  P32  1  0.856  0.644  0.250  1.0
  P  P33  1  0.644  0.856  0.750  1.0
[/CIF]
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The structure described by Sr(Ni5P3)2 crystallizes in the orthorhombic Cmce space group. Sr(1) is bonded in a 18-coordinate geometry to four equivalent Ni(4), six equivalent Ni(3), two equivalent P(2), two equivalent P(3), and four equivalent P(1) atoms. There are four inequivalent Ni sites. In the first Ni site, Ni(1) is bonded in a 4-coordinate geometry to two equivalent P(1) and two equivalent P(3) atoms. In the second Ni site, Ni(2) is bonded in a 4-coordinate geometry to two equivalent P(2) and two equivalent P(3) atoms. In the third Ni site, Ni(3) is bonded to three equivalent Sr(1), two equivalent P(1), and two equivalent P(2) atoms to form distorted NiSr3P4 tetrahedra that share corners with six equivalent Ni(4)SrP4 tetrahedra, corners with nine equivalent Ni(3)Sr3P4 tetrahedra, edges with four equivalent Ni(4)SrP4 tetrahedra, faces with two equivalent Ni(4)SrP4 tetrahedra, and faces with three equivalent Ni(3)Sr3P4 tetrahedra. In the fourth Ni site, Ni(4) is bonded to one Sr(1), one P(1), one P(2), and two equivalent P(3) atoms to form distorted NiSrP4 tetrahedra that share corners with three equivalent Ni(3)Sr3P4 tetrahedra, corners with five equivalent Ni(4)SrP4 tetrahedra, edges with two equivalent Ni(3)Sr3P4 tetrahedra, edges with three equivalent Ni(4)SrP4 tetrahedra, and  a faceface with one Ni(3)Sr3P4 tetrahedra. There are three inequivalent P sites. In the first P site, P(1) is bonded in a 8-coordinate geometry to two equivalent Sr(1), two equivalent Ni(1), two equivalent Ni(3), and two equivalent Ni(4) atoms. In the second P site, P(2) is bonded in a 6-coordinate geometry to one Sr(1), two equivalent Ni(2), two equivalent Ni(3), and two equivalent Ni(4) atoms. In the third P site, P(3) is bonded in a 9-coordinate geometry to one Sr(1), two equivalent Ni(1), two equivalent Ni(2), and four equivalent Ni(4) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Sr(Ni5P3)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.654
_cell_length_b   8.654
_cell_length_c   8.726
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   136.386
_symmetry_Int_Tables_number   1
_cell_volume   450.835
_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  0.000  0.000  0.500  1.0
  Sr  Sr1  1  0.500  0.500  0.000  1.0
  Ni  Ni2  1  0.207  0.793  0.291  1.0
  Ni  Ni3  1  0.293  0.707  0.791  1.0
  Ni  Ni4  1  0.914  0.586  0.750  1.0
  Ni  Ni5  1  0.707  0.293  0.209  1.0
  Ni  Ni6  1  0.086  0.414  0.250  1.0
  Ni  Ni7  1  0.414  0.086  0.750  1.0
  Ni  Ni8  1  0.956  0.044  0.881  1.0
  Ni  Ni9  1  0.044  0.956  0.119  1.0
  Ni  Ni10  1  0.544  0.456  0.381  1.0
  Ni  Ni11  1  0.456  0.544  0.619  1.0
  Ni  Ni12  1  0.473  0.126  0.470  1.0
  Ni  Ni13  1  0.126  0.473  0.530  1.0
  Ni  Ni14  1  0.027  0.374  0.970  1.0
  Ni  Ni15  1  0.374  0.027  0.030  1.0
  Ni  Ni16  1  0.527  0.874  0.530  1.0
  Ni  Ni17  1  0.874  0.527  0.470  1.0
  Ni  Ni18  1  0.973  0.626  0.030  1.0
  Ni  Ni19  1  0.626  0.973  0.970  1.0
  Ni  Ni20  1  0.586  0.914  0.250  1.0
  Ni  Ni21  1  0.793  0.207  0.709  1.0
  P  P22  1  0.144  0.356  0.750  1.0
  P  P23  1  0.356  0.144  0.250  1.0
  P  P24  1  0.409  0.591  0.371  1.0
  P  P25  1  0.591  0.409  0.629  1.0
  P  P26  1  0.091  0.909  0.871  1.0
  P  P27  1  0.909  0.091  0.129  1.0
  P  P28  1  0.292  0.708  0.073  1.0
  P  P29  1  0.708  0.292  0.927  1.0
  P  P30  1  0.208  0.792  0.573  1.0
  P  P31  1  0.792  0.208  0.427  1.0
  P  P32  1  0.856  0.644  0.250  1.0
  P  P33  1  0.644  0.856  0.750  1.0
[/CIF]
.