The structure described by Ca3(InN2)2 crystallizes in the monoclinic C2/c space group. There are two inequivalent Ca sites. In the first Ca site, Ca(1) is bonded to two equivalent N(2) and three equivalent N(1) atoms to form distorted CaN5 trigonal bipyramids that share corners with five equivalent Ca(2)N6 octahedra, corners with six equivalent In(1)N4 tetrahedra, corners with two equivalent Ca(1)N5 trigonal bipyramids,  an edgeedge with one Ca(2)N6 octahedra, edges with two equivalent In(1)N4 tetrahedra, and edges with three equivalent Ca(1)N5 trigonal bipyramids. The corner-sharing octahedral tilt angles range from 41-59°. In the second Ca site, Ca(2) is bonded to two equivalent N(1) and four equivalent N(2) atoms to form distorted CaN6 octahedra that share corners with four equivalent In(1)N4 tetrahedra, corners with ten equivalent Ca(1)N5 trigonal bipyramids, edges with two equivalent Ca(2)N6 octahedra, edges with four equivalent In(1)N4 tetrahedra, and edges with two equivalent Ca(1)N5 trigonal bipyramids. In(1) is bonded to two equivalent N(1) and two equivalent N(2) atoms to form distorted InN4 tetrahedra that share corners with two equivalent Ca(2)N6 octahedra, corners with two equivalent In(1)N4 tetrahedra, corners with six equivalent Ca(1)N5 trigonal bipyramids, edges with two equivalent Ca(2)N6 octahedra,  an edgeedge with one In(1)N4 tetrahedra, and edges with two equivalent Ca(1)N5 trigonal bipyramids. The corner-sharing octahedral tilt angles range from 29-68°. There are two inequivalent N sites. In the first N site, N(1) is bonded in a 6-coordinate geometry to one Ca(2), three equivalent Ca(1), and two equivalent In(1) atoms. In the second N site, N(2) is bonded in a 6-coordinate geometry to two equivalent Ca(1), two equivalent Ca(2), and two equivalent In(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Ca3(InN2)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.038
_cell_length_b   8.762
_cell_length_c   6.007
_cell_angle_alpha   90.000
_cell_angle_beta   89.729
_cell_angle_gamma   128.499
_symmetry_Int_Tables_number   1
_cell_volume   289.926
_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
  Ca  Ca0  1  0.222  0.978  0.053  1.0
  Ca  Ca1  1  0.778  0.757  0.447  1.0
  Ca  Ca2  1  0.778  0.022  0.947  1.0
  Ca  Ca3  1  0.222  0.243  0.553  1.0
  Ca  Ca4  1  0.000  0.611  0.750  1.0
  Ca  Ca5  1  0.000  0.389  0.250  1.0
  In  In6  1  0.598  0.179  0.616  1.0
  In  In7  1  0.402  0.581  0.884  1.0
  In  In8  1  0.402  0.821  0.384  1.0
  In  In9  1  0.598  0.419  0.116  1.0
  N  N10  1  0.215  0.944  0.506  1.0
  N  N11  1  0.785  0.729  0.994  1.0
  N  N12  1  0.785  0.056  0.494  1.0
  N  N13  1  0.215  0.271  0.006  1.0
  N  N14  1  0.702  0.255  0.962  1.0
  N  N15  1  0.298  0.554  0.538  1.0
  N  N16  1  0.298  0.745  0.038  1.0
  N  N17  1  0.702  0.446  0.462  1.0
[/CIF]
.
The structure described by Ca3(InN2)2 crystallizes in the monoclinic C2/c space group. There are two inequivalent Ca sites. In the first Ca site, Ca(1) is bonded to two equivalent N(2) and three equivalent N(1) atoms to form distorted CaN5 trigonal bipyramids that share corners with five equivalent Ca(2)N6 octahedra, corners with six equivalent In(1)N4 tetrahedra, corners with two equivalent Ca(1)N5 trigonal bipyramids,  an edgeedge with one Ca(2)N6 octahedra, edges with two equivalent In(1)N4 tetrahedra, and edges with three equivalent Ca(1)N5 trigonal bipyramids. The corner-sharing octahedral tilt angles range from 41-59°. In the second Ca site, Ca(2) is bonded to two equivalent N(1) and four equivalent N(2) atoms to form distorted CaN6 octahedra that share corners with four equivalent In(1)N4 tetrahedra, corners with ten equivalent Ca(1)N5 trigonal bipyramids, edges with two equivalent Ca(2)N6 octahedra, edges with four equivalent In(1)N4 tetrahedra, and edges with two equivalent Ca(1)N5 trigonal bipyramids. In(1) is bonded to two equivalent N(1) and two equivalent N(2) atoms to form distorted InN4 tetrahedra that share corners with two equivalent Ca(2)N6 octahedra, corners with two equivalent In(1)N4 tetrahedra, corners with six equivalent Ca(1)N5 trigonal bipyramids, edges with two equivalent Ca(2)N6 octahedra,  an edgeedge with one In(1)N4 tetrahedra, and edges with two equivalent Ca(1)N5 trigonal bipyramids. The corner-sharing octahedral tilt angles range from 29-68°. There are two inequivalent N sites. In the first N site, N(1) is bonded in a 6-coordinate geometry to one Ca(2), three equivalent Ca(1), and two equivalent In(1) atoms. In the second N site, N(2) is bonded in a 6-coordinate geometry to two equivalent Ca(1), two equivalent Ca(2), and two equivalent In(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Ca3(InN2)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.038
_cell_length_b   8.762
_cell_length_c   6.007
_cell_angle_alpha   90.000
_cell_angle_beta   89.729
_cell_angle_gamma   128.499
_symmetry_Int_Tables_number   1
_cell_volume   289.926
_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
  Ca  Ca0  1  0.222  0.978  0.053  1.0
  Ca  Ca1  1  0.778  0.757  0.447  1.0
  Ca  Ca2  1  0.778  0.022  0.947  1.0
  Ca  Ca3  1  0.222  0.243  0.553  1.0
  Ca  Ca4  1  0.000  0.611  0.750  1.0
  Ca  Ca5  1  0.000  0.389  0.250  1.0
  In  In6  1  0.598  0.179  0.616  1.0
  In  In7  1  0.402  0.581  0.884  1.0
  In  In8  1  0.402  0.821  0.384  1.0
  In  In9  1  0.598  0.419  0.116  1.0
  N  N10  1  0.215  0.944  0.506  1.0
  N  N11  1  0.785  0.729  0.994  1.0
  N  N12  1  0.785  0.056  0.494  1.0
  N  N13  1  0.215  0.271  0.006  1.0
  N  N14  1  0.702  0.255  0.962  1.0
  N  N15  1  0.298  0.554  0.538  1.0
  N  N16  1  0.298  0.745  0.038  1.0
  N  N17  1  0.702  0.446  0.462  1.0
[/CIF]
.