The structure described by Sr3(InN2)2 crystallizes in the monoclinic C2/c space group. There are two inequivalent Sr sites. In the first Sr site, Sr(1) is bonded to two equivalent N(2) and three equivalent N(1) atoms to form distorted SrN5 trigonal bipyramids that share corners with five equivalent Sr(2)N6 octahedra, corners with six equivalent In(1)N4 tetrahedra, corners with two equivalent Sr(1)N5 trigonal bipyramids,  an edgeedge with one Sr(2)N6 octahedra, edges with two equivalent In(1)N4 tetrahedra, and edges with three equivalent Sr(1)N5 trigonal bipyramids. The corner-sharing octahedral tilt angles range from 34-62°. 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 In(1)N4 tetrahedra, corners with ten equivalent Sr(1)N5 trigonal bipyramids, edges with two equivalent Sr(2)N6 octahedra, edges with four equivalent In(1)N4 tetrahedra, and edges with two equivalent Sr(1)N5 trigonal bipyramids. In(1) is bonded to two equivalent N(1) and two equivalent N(2) atoms to form InN4 tetrahedra that share corners with two equivalent Sr(2)N6 octahedra, corners with two equivalent In(1)N4 tetrahedra, corners with six equivalent Sr(1)N5 trigonal bipyramids, edges with two equivalent Sr(2)N6 octahedra,  an edgeedge with one In(1)N4 tetrahedra, and edges with two equivalent Sr(1)N5 trigonal bipyramids. The corner-sharing octahedral tilt angles range from 31-62°. There are two inequivalent N sites. In the first N site, N(1) is bonded in a 6-coordinate geometry to one Sr(2), three equivalent Sr(1), and two equivalent In(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 In(1) atoms. is represented by the CIF card [CIF]
data_Sr3(InN2)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.403
_cell_length_b   9.222
_cell_length_c   6.176
_cell_angle_alpha   90.000
_cell_angle_beta   90.623
_cell_angle_gamma   128.526
_symmetry_Int_Tables_number   1
_cell_volume   329.827
_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  0.228  0.977  0.054  1.0
  Sr  Sr1  1  0.772  0.749  0.446  1.0
  Sr  Sr2  1  0.772  0.023  0.946  1.0
  Sr  Sr3  1  0.228  0.251  0.554  1.0
  Sr  Sr4  1  0.000  0.603  0.750  1.0
  Sr  Sr5  1  0.000  0.397  0.250  1.0
  In  In6  1  0.591  0.177  0.601  1.0
  In  In7  1  0.409  0.586  0.899  1.0
  In  In8  1  0.409  0.823  0.399  1.0
  In  In9  1  0.591  0.414  0.101  1.0
  N  N10  1  0.225  0.940  0.510  1.0
  N  N11  1  0.775  0.715  0.990  1.0
  N  N12  1  0.775  0.060  0.490  1.0
  N  N13  1  0.225  0.285  0.010  1.0
  N  N14  1  0.690  0.258  0.944  1.0
  N  N15  1  0.310  0.568  0.556  1.0
  N  N16  1  0.310  0.742  0.056  1.0
  N  N17  1  0.690  0.432  0.444  1.0
[/CIF]
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The structure described by Sr3(InN2)2 crystallizes in the monoclinic C2/c space group. There are two inequivalent Sr sites. In the first Sr site, Sr(1) is bonded to two equivalent N(2) and three equivalent N(1) atoms to form distorted SrN5 trigonal bipyramids that share corners with five equivalent Sr(2)N6 octahedra, corners with six equivalent In(1)N4 tetrahedra, corners with two equivalent Sr(1)N5 trigonal bipyramids,  an edgeedge with one Sr(2)N6 octahedra, edges with two equivalent In(1)N4 tetrahedra, and edges with three equivalent Sr(1)N5 trigonal bipyramids. The corner-sharing octahedral tilt angles range from 34-62°. 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 In(1)N4 tetrahedra, corners with ten equivalent Sr(1)N5 trigonal bipyramids, edges with two equivalent Sr(2)N6 octahedra, edges with four equivalent In(1)N4 tetrahedra, and edges with two equivalent Sr(1)N5 trigonal bipyramids. In(1) is bonded to two equivalent N(1) and two equivalent N(2) atoms to form InN4 tetrahedra that share corners with two equivalent Sr(2)N6 octahedra, corners with two equivalent In(1)N4 tetrahedra, corners with six equivalent Sr(1)N5 trigonal bipyramids, edges with two equivalent Sr(2)N6 octahedra,  an edgeedge with one In(1)N4 tetrahedra, and edges with two equivalent Sr(1)N5 trigonal bipyramids. The corner-sharing octahedral tilt angles range from 31-62°. There are two inequivalent N sites. In the first N site, N(1) is bonded in a 6-coordinate geometry to one Sr(2), three equivalent Sr(1), and two equivalent In(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 In(1) atoms. is represented by the CIF card [CIF]
data_Sr3(InN2)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.403
_cell_length_b   9.222
_cell_length_c   6.176
_cell_angle_alpha   90.000
_cell_angle_beta   90.623
_cell_angle_gamma   128.526
_symmetry_Int_Tables_number   1
_cell_volume   329.827
_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  0.228  0.977  0.054  1.0
  Sr  Sr1  1  0.772  0.749  0.446  1.0
  Sr  Sr2  1  0.772  0.023  0.946  1.0
  Sr  Sr3  1  0.228  0.251  0.554  1.0
  Sr  Sr4  1  0.000  0.603  0.750  1.0
  Sr  Sr5  1  0.000  0.397  0.250  1.0
  In  In6  1  0.591  0.177  0.601  1.0
  In  In7  1  0.409  0.586  0.899  1.0
  In  In8  1  0.409  0.823  0.399  1.0
  In  In9  1  0.591  0.414  0.101  1.0
  N  N10  1  0.225  0.940  0.510  1.0
  N  N11  1  0.775  0.715  0.990  1.0
  N  N12  1  0.775  0.060  0.490  1.0
  N  N13  1  0.225  0.285  0.010  1.0
  N  N14  1  0.690  0.258  0.944  1.0
  N  N15  1  0.310  0.568  0.556  1.0
  N  N16  1  0.310  0.742  0.056  1.0
  N  N17  1  0.690  0.432  0.444  1.0
[/CIF]
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