The material described by Cr(SnN)3 crystallizes in the monoclinic P2_1/m space group. Cr(1) is bonded in a trigonal planar geometry to one N(1), one N(2), and one N(3) atom. There are three inequivalent Sn sites. In the first Sn site, Sn(1) is bonded in a 3-coordinate geometry to three equivalent N(1) atoms. In the second Sn site, Sn(2) is bonded in a 3-coordinate geometry to three equivalent N(2) atoms. In the third Sn site, Sn(3) is bonded in a 3-coordinate geometry to three equivalent N(3) atoms. There are three inequivalent N sites. In the first N site, N(1) is bonded in a 4-coordinate geometry to one Cr(1) and three equivalent Sn(1) atoms. In the second N site, N(2) is bonded in a 4-coordinate geometry to one Cr(1) and three equivalent Sn(2) atoms. In the third N site, N(3) is bonded to one Cr(1) and three equivalent Sn(3) atoms to form a mixture of distorted edge and corner-sharing NCrSn3 tetrahedra. is represented by the CIF card [CIF]
data_Cr(SnN)3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.215
_cell_length_b   9.227
_cell_length_c   4.151
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   119.899
_symmetry_Int_Tables_number   1
_cell_volume   305.942
_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
  Cr  Cr0  1  0.666  0.333  0.750  1.0
  Cr  Cr1  1  0.334  0.667  0.250  1.0
  Sn  Sn2  1  0.920  0.606  0.250  1.0
  Sn  Sn3  1  0.686  0.081  0.250  1.0
  Sn  Sn4  1  0.395  0.314  0.250  1.0
  Sn  Sn5  1  0.080  0.394  0.750  1.0
  Sn  Sn6  1  0.314  0.919  0.750  1.0
  Sn  Sn7  1  0.605  0.686  0.750  1.0
  N  N8  1  0.886  0.469  0.750  1.0
  N  N9  1  0.581  0.113  0.750  1.0
  N  N10  1  0.531  0.419  0.750  1.0
  N  N11  1  0.114  0.531  0.250  1.0
  N  N12  1  0.419  0.887  0.250  1.0
  N  N13  1  0.469  0.581  0.250  1.0
[/CIF]
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The material described by Cr(SnN)3 crystallizes in the monoclinic P2_1/m space group. Cr(1) is bonded in a trigonal planar geometry to one N(1), one N(2), and one N(3) atom. There are three inequivalent Sn sites. In the first Sn site, Sn(1) is bonded in a 3-coordinate geometry to three equivalent N(1) atoms. In the second Sn site, Sn(2) is bonded in a 3-coordinate geometry to three equivalent N(2) atoms. In the third Sn site, Sn(3) is bonded in a 3-coordinate geometry to three equivalent N(3) atoms. There are three inequivalent N sites. In the first N site, N(1) is bonded in a 4-coordinate geometry to one Cr(1) and three equivalent Sn(1) atoms. In the second N site, N(2) is bonded in a 4-coordinate geometry to one Cr(1) and three equivalent Sn(2) atoms. In the third N site, N(3) is bonded to one Cr(1) and three equivalent Sn(3) atoms to form a mixture of distorted edge and corner-sharing NCrSn3 tetrahedra. is represented by the CIF card [CIF]
data_Cr(SnN)3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.215
_cell_length_b   9.227
_cell_length_c   4.151
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   119.899
_symmetry_Int_Tables_number   1
_cell_volume   305.942
_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
  Cr  Cr0  1  0.666  0.333  0.750  1.0
  Cr  Cr1  1  0.334  0.667  0.250  1.0
  Sn  Sn2  1  0.920  0.606  0.250  1.0
  Sn  Sn3  1  0.686  0.081  0.250  1.0
  Sn  Sn4  1  0.395  0.314  0.250  1.0
  Sn  Sn5  1  0.080  0.394  0.750  1.0
  Sn  Sn6  1  0.314  0.919  0.750  1.0
  Sn  Sn7  1  0.605  0.686  0.750  1.0
  N  N8  1  0.886  0.469  0.750  1.0
  N  N9  1  0.581  0.113  0.750  1.0
  N  N10  1  0.531  0.419  0.750  1.0
  N  N11  1  0.114  0.531  0.250  1.0
  N  N12  1  0.419  0.887  0.250  1.0
  N  N13  1  0.469  0.581  0.250  1.0
[/CIF]
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