The compound described by Mg3(InN2)2 is Aluminum carbonitride-like structured and crystallizes in the monoclinic C2/c space group. There are two inequivalent Mg sites. In the first Mg site, Mg(1) is bonded in a 4-coordinate geometry to two equivalent N(2) and three equivalent N(1) atoms. In the second Mg site, Mg(2) is bonded to two equivalent N(1) and two equivalent N(2) atoms to form MgN4 tetrahedra that share corners with eight equivalent In(1)N4 tetrahedra. 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 In(1)N4 tetrahedra, corners with four equivalent Mg(2)N4 tetrahedra, and  an edgeedge with one In(1)N4 tetrahedra. There are two inequivalent N sites. In the first N site, N(1) is bonded to one Mg(2), three equivalent Mg(1), and two equivalent In(1) atoms to form a mixture of distorted corner and edge-sharing NMg4In2 pentagonal pyramids. In the second N site, N(2) is bonded in a 5-coordinate geometry to one Mg(2), two equivalent Mg(1), and two equivalent In(1) atoms. is represented by the CIF card [CIF]
data_Mg3(InN2)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.511
_cell_length_b   8.865
_cell_length_c   5.634
_cell_angle_alpha   90.000
_cell_angle_beta   91.859
_cell_angle_gamma   132.902
_symmetry_Int_Tables_number   1
_cell_volume   237.958
_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
  Mg  Mg0  1  0.237  0.017  0.102  1.0
  Mg  Mg1  1  0.763  0.780  0.398  1.0
  Mg  Mg2  1  0.763  0.983  0.898  1.0
  Mg  Mg3  1  0.237  0.220  0.602  1.0
  Mg  Mg4  1  0.000  0.708  0.750  1.0
  Mg  Mg5  1  0.000  0.292  0.250  1.0
  In  In6  1  0.655  0.207  0.647  1.0
  In  In7  1  0.345  0.552  0.853  1.0
  In  In8  1  0.345  0.793  0.353  1.0
  In  In9  1  0.655  0.448  0.147  1.0
  N  N10  1  0.198  0.949  0.487  1.0
  N  N11  1  0.802  0.750  0.013  1.0
  N  N12  1  0.802  0.051  0.513  1.0
  N  N13  1  0.198  0.250  0.987  1.0
  N  N14  1  0.678  0.227  0.033  1.0
  N  N15  1  0.322  0.549  0.467  1.0
  N  N16  1  0.322  0.773  0.967  1.0
  N  N17  1  0.678  0.451  0.533  1.0
[/CIF]
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The compound described by Mg3(InN2)2 is Aluminum carbonitride-like structured and crystallizes in the monoclinic C2/c space group. There are two inequivalent Mg sites. In the first Mg site, Mg(1) is bonded in a 4-coordinate geometry to two equivalent N(2) and three equivalent N(1) atoms. In the second Mg site, Mg(2) is bonded to two equivalent N(1) and two equivalent N(2) atoms to form MgN4 tetrahedra that share corners with eight equivalent In(1)N4 tetrahedra. 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 In(1)N4 tetrahedra, corners with four equivalent Mg(2)N4 tetrahedra, and  an edgeedge with one In(1)N4 tetrahedra. There are two inequivalent N sites. In the first N site, N(1) is bonded to one Mg(2), three equivalent Mg(1), and two equivalent In(1) atoms to form a mixture of distorted corner and edge-sharing NMg4In2 pentagonal pyramids. In the second N site, N(2) is bonded in a 5-coordinate geometry to one Mg(2), two equivalent Mg(1), and two equivalent In(1) atoms. is represented by the CIF card [CIF]
data_Mg3(InN2)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.511
_cell_length_b   8.865
_cell_length_c   5.634
_cell_angle_alpha   90.000
_cell_angle_beta   91.859
_cell_angle_gamma   132.902
_symmetry_Int_Tables_number   1
_cell_volume   237.958
_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
  Mg  Mg0  1  0.237  0.017  0.102  1.0
  Mg  Mg1  1  0.763  0.780  0.398  1.0
  Mg  Mg2  1  0.763  0.983  0.898  1.0
  Mg  Mg3  1  0.237  0.220  0.602  1.0
  Mg  Mg4  1  0.000  0.708  0.750  1.0
  Mg  Mg5  1  0.000  0.292  0.250  1.0
  In  In6  1  0.655  0.207  0.647  1.0
  In  In7  1  0.345  0.552  0.853  1.0
  In  In8  1  0.345  0.793  0.353  1.0
  In  In9  1  0.655  0.448  0.147  1.0
  N  N10  1  0.198  0.949  0.487  1.0
  N  N11  1  0.802  0.750  0.013  1.0
  N  N12  1  0.802  0.051  0.513  1.0
  N  N13  1  0.198  0.250  0.987  1.0
  N  N14  1  0.678  0.227  0.033  1.0
  N  N15  1  0.322  0.549  0.467  1.0
  N  N16  1  0.322  0.773  0.967  1.0
  N  N17  1  0.678  0.451  0.533  1.0
[/CIF]
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