The crystal structure described by Sr3(WN2)2 crystallizes in the orthorhombic Pnna space group. There are two inequivalent Sr sites. In the first Sr site, Sr(1) is bonded in a 5-coordinate geometry to two equivalent N(1) and three equivalent N(2) atoms. In the second Sr site, Sr(2) is bonded in a 6-coordinate geometry to two equivalent N(2) and four equivalent N(1) atoms. There are two inequivalent W sites. In the first W site, W(1) is bonded to two equivalent N(1) and two equivalent N(2) atoms to form distorted edge-sharing WN4 tetrahedra. In the second W site, W(2) is bonded to two equivalent N(1) and two equivalent N(2) atoms to form distorted edge-sharing WN4 tetrahedra. There are two inequivalent N sites. In the first N site, N(1) is bonded in a 6-coordinate geometry to two equivalent Sr(1), two equivalent Sr(2), one W(1), and one W(2) atom. In the second N site, N(2) is bonded to one Sr(2), three equivalent Sr(1), one W(1), and one W(2) atom to form a mixture of distorted edge, face, and corner-sharing NSr4W2 octahedra. The corner-sharing octahedral tilt angles range from 37-66°. is represented by the Crystallographic Information File (CIF) [CIF]
data_Sr3(WN2)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.011
_cell_length_b   10.610
_cell_length_c   9.870
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   629.459
_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
  Sr  Sr0  1  0.620  0.159  0.419  1.0
  Sr  Sr1  1  0.880  0.841  0.419  1.0
  Sr  Sr2  1  0.620  0.341  0.081  1.0
  Sr  Sr3  1  0.880  0.659  0.081  1.0
  Sr  Sr4  1  0.380  0.841  0.581  1.0
  Sr  Sr5  1  0.120  0.159  0.581  1.0
  Sr  Sr6  1  0.380  0.659  0.919  1.0
  Sr  Sr7  1  0.120  0.341  0.919  1.0
  Sr  Sr8  1  0.750  0.500  0.399  1.0
  Sr  Sr9  1  0.750  0.000  0.101  1.0
  Sr  Sr10  1  0.250  0.500  0.601  1.0
  Sr  Sr11  1  0.250  0.000  0.899  1.0
  W  W12  1  0.750  0.500  0.736  1.0
  W  W13  1  0.750  0.000  0.764  1.0
  W  W14  1  0.250  0.500  0.264  1.0
  W  W15  1  0.250  0.000  0.236  1.0
  W  W16  1  0.620  0.250  0.750  1.0
  W  W17  1  0.880  0.750  0.750  1.0
  W  W18  1  0.380  0.750  0.250  1.0
  W  W19  1  0.120  0.250  0.250  1.0
  N  N20  1  0.830  0.347  0.627  1.0
  N  N21  1  0.670  0.653  0.627  1.0
  N  N22  1  0.830  0.153  0.873  1.0
  N  N23  1  0.670  0.847  0.873  1.0
  N  N24  1  0.170  0.653  0.373  1.0
  N  N25  1  0.330  0.347  0.373  1.0
  N  N26  1  0.170  0.847  0.127  1.0
  N  N27  1  0.330  0.153  0.127  1.0
  N  N28  1  0.509  0.417  0.839  1.0
  N  N29  1  0.991  0.583  0.839  1.0
  N  N30  1  0.509  0.083  0.661  1.0
  N  N31  1  0.991  0.917  0.661  1.0
  N  N32  1  0.491  0.583  0.161  1.0
  N  N33  1  0.009  0.417  0.161  1.0
  N  N34  1  0.491  0.917  0.339  1.0
  N  N35  1  0.009  0.083  0.339  1.0
[/CIF]
.
The crystal structure described by Sr3(WN2)2 crystallizes in the orthorhombic Pnna space group. There are two inequivalent Sr sites. In the first Sr site, Sr(1) is bonded in a 5-coordinate geometry to two equivalent N(1) and three equivalent N(2) atoms. In the second Sr site, Sr(2) is bonded in a 6-coordinate geometry to two equivalent N(2) and four equivalent N(1) atoms. There are two inequivalent W sites. In the first W site, W(1) is bonded to two equivalent N(1) and two equivalent N(2) atoms to form distorted edge-sharing WN4 tetrahedra. In the second W site, W(2) is bonded to two equivalent N(1) and two equivalent N(2) atoms to form distorted edge-sharing WN4 tetrahedra. There are two inequivalent N sites. In the first N site, N(1) is bonded in a 6-coordinate geometry to two equivalent Sr(1), two equivalent Sr(2), one W(1), and one W(2) atom. In the second N site, N(2) is bonded to one Sr(2), three equivalent Sr(1), one W(1), and one W(2) atom to form a mixture of distorted edge, face, and corner-sharing NSr4W2 octahedra. The corner-sharing octahedral tilt angles range from 37-66°. is represented by the Crystallographic Information File (CIF) [CIF]
data_Sr3(WN2)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.011
_cell_length_b   10.610
_cell_length_c   9.870
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   629.459
_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
  Sr  Sr0  1  0.620  0.159  0.419  1.0
  Sr  Sr1  1  0.880  0.841  0.419  1.0
  Sr  Sr2  1  0.620  0.341  0.081  1.0
  Sr  Sr3  1  0.880  0.659  0.081  1.0
  Sr  Sr4  1  0.380  0.841  0.581  1.0
  Sr  Sr5  1  0.120  0.159  0.581  1.0
  Sr  Sr6  1  0.380  0.659  0.919  1.0
  Sr  Sr7  1  0.120  0.341  0.919  1.0
  Sr  Sr8  1  0.750  0.500  0.399  1.0
  Sr  Sr9  1  0.750  0.000  0.101  1.0
  Sr  Sr10  1  0.250  0.500  0.601  1.0
  Sr  Sr11  1  0.250  0.000  0.899  1.0
  W  W12  1  0.750  0.500  0.736  1.0
  W  W13  1  0.750  0.000  0.764  1.0
  W  W14  1  0.250  0.500  0.264  1.0
  W  W15  1  0.250  0.000  0.236  1.0
  W  W16  1  0.620  0.250  0.750  1.0
  W  W17  1  0.880  0.750  0.750  1.0
  W  W18  1  0.380  0.750  0.250  1.0
  W  W19  1  0.120  0.250  0.250  1.0
  N  N20  1  0.830  0.347  0.627  1.0
  N  N21  1  0.670  0.653  0.627  1.0
  N  N22  1  0.830  0.153  0.873  1.0
  N  N23  1  0.670  0.847  0.873  1.0
  N  N24  1  0.170  0.653  0.373  1.0
  N  N25  1  0.330  0.347  0.373  1.0
  N  N26  1  0.170  0.847  0.127  1.0
  N  N27  1  0.330  0.153  0.127  1.0
  N  N28  1  0.509  0.417  0.839  1.0
  N  N29  1  0.991  0.583  0.839  1.0
  N  N30  1  0.509  0.083  0.661  1.0
  N  N31  1  0.991  0.917  0.661  1.0
  N  N32  1  0.491  0.583  0.161  1.0
  N  N33  1  0.009  0.417  0.161  1.0
  N  N34  1  0.491  0.917  0.339  1.0
  N  N35  1  0.009  0.083  0.339  1.0
[/CIF]
.