The material described by Sr3(CoN2)2 crystallizes in the monoclinic C2/c space group. There are two inequivalent Sr sites. In the first Sr site, Sr(1) is bonded in a 6-coordinate geometry to two equivalent N(2) and four equivalent N(1) atoms. In the second Sr site, Sr(2) is bonded to two equivalent N(1) and four equivalent N(2) atoms to form distorted SrN6 octahedra that share corners with four equivalent Co(1)N4 tetrahedra, edges with two equivalent Sr(2)N6 octahedra, and edges with four equivalent Co(1)N4 tetrahedra. Co(1) is bonded to two equivalent N(1) and two equivalent N(2) atoms to form CoN4 tetrahedra that share corners with two equivalent Sr(2)N6 octahedra, corners with two equivalent Co(1)N4 tetrahedra, edges with two equivalent Sr(2)N6 octahedra, and  an edgeedge with one Co(1)N4 tetrahedra. The corner-sharing octahedral tilt angles range from 42-48°. There are two inequivalent N sites. In the first N site, N(1) is bonded in a 7-coordinate geometry to one Sr(2), four equivalent Sr(1), and two equivalent Co(1) atoms. In the second N site, N(2) is bonded in a 6-coordinate geometry to two equivalent Sr(1), two equivalent Sr(2), and two equivalent Co(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Sr3(CoN2)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.068
_cell_length_b   8.637
_cell_length_c   5.559
_cell_angle_alpha   90.000
_cell_angle_beta   93.419
_cell_angle_gamma   127.661
_symmetry_Int_Tables_number   1
_cell_volume   267.876
_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  0.250  0.990  0.054  1.0
  Sr  Sr1  1  0.750  0.739  0.446  1.0
  Sr  Sr2  1  0.750  0.010  0.946  1.0
  Sr  Sr3  1  0.250  0.261  0.554  1.0
  Sr  Sr4  1  0.000  0.593  0.750  1.0
  Sr  Sr5  1  0.000  0.407  0.250  1.0
  Co  Co6  1  0.580  0.163  0.573  1.0
  Co  Co7  1  0.420  0.583  0.927  1.0
  Co  Co8  1  0.420  0.837  0.427  1.0
  Co  Co9  1  0.580  0.417  0.073  1.0
  N  N10  1  0.251  0.938  0.530  1.0
  N  N11  1  0.749  0.686  0.970  1.0
  N  N12  1  0.749  0.062  0.470  1.0
  N  N13  1  0.251  0.314  0.030  1.0
  N  N14  1  0.650  0.266  0.895  1.0
  N  N15  1  0.350  0.617  0.605  1.0
  N  N16  1  0.350  0.734  0.105  1.0
  N  N17  1  0.650  0.383  0.395  1.0
[/CIF]
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The material described by Sr3(CoN2)2 crystallizes in the monoclinic C2/c space group. There are two inequivalent Sr sites. In the first Sr site, Sr(1) is bonded in a 6-coordinate geometry to two equivalent N(2) and four equivalent N(1) atoms. In the second Sr site, Sr(2) is bonded to two equivalent N(1) and four equivalent N(2) atoms to form distorted SrN6 octahedra that share corners with four equivalent Co(1)N4 tetrahedra, edges with two equivalent Sr(2)N6 octahedra, and edges with four equivalent Co(1)N4 tetrahedra. Co(1) is bonded to two equivalent N(1) and two equivalent N(2) atoms to form CoN4 tetrahedra that share corners with two equivalent Sr(2)N6 octahedra, corners with two equivalent Co(1)N4 tetrahedra, edges with two equivalent Sr(2)N6 octahedra, and  an edgeedge with one Co(1)N4 tetrahedra. The corner-sharing octahedral tilt angles range from 42-48°. There are two inequivalent N sites. In the first N site, N(1) is bonded in a 7-coordinate geometry to one Sr(2), four equivalent Sr(1), and two equivalent Co(1) atoms. In the second N site, N(2) is bonded in a 6-coordinate geometry to two equivalent Sr(1), two equivalent Sr(2), and two equivalent Co(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Sr3(CoN2)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.068
_cell_length_b   8.637
_cell_length_c   5.559
_cell_angle_alpha   90.000
_cell_angle_beta   93.419
_cell_angle_gamma   127.661
_symmetry_Int_Tables_number   1
_cell_volume   267.876
_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  0.250  0.990  0.054  1.0
  Sr  Sr1  1  0.750  0.739  0.446  1.0
  Sr  Sr2  1  0.750  0.010  0.946  1.0
  Sr  Sr3  1  0.250  0.261  0.554  1.0
  Sr  Sr4  1  0.000  0.593  0.750  1.0
  Sr  Sr5  1  0.000  0.407  0.250  1.0
  Co  Co6  1  0.580  0.163  0.573  1.0
  Co  Co7  1  0.420  0.583  0.927  1.0
  Co  Co8  1  0.420  0.837  0.427  1.0
  Co  Co9  1  0.580  0.417  0.073  1.0
  N  N10  1  0.251  0.938  0.530  1.0
  N  N11  1  0.749  0.686  0.970  1.0
  N  N12  1  0.749  0.062  0.470  1.0
  N  N13  1  0.251  0.314  0.030  1.0
  N  N14  1  0.650  0.266  0.895  1.0
  N  N15  1  0.350  0.617  0.605  1.0
  N  N16  1  0.350  0.734  0.105  1.0
  N  N17  1  0.650  0.383  0.395  1.0
[/CIF]
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