The material structure described by SiCAlN is Stannite-like structured and crystallizes in the trigonal P3m1 space group. Al(1) is bonded to one C(1) and three equivalent N(1) atoms to form AlCN3 tetrahedra that share corners with six equivalent Al(1)CN3 tetrahedra and corners with six equivalent Si(1)C3N tetrahedra. Si(1) is bonded to three equivalent C(1) and one N(1) atom to form SiC3N tetrahedra that share corners with six equivalent Al(1)CN3 tetrahedra and corners with six equivalent Si(1)C3N tetrahedra. C(1) is bonded to one Al(1) and three equivalent Si(1) atoms to form CAlSi3 tetrahedra that share corners with six equivalent C(1)AlSi3 tetrahedra and corners with six equivalent N(1)Al3Si tetrahedra. N(1) is bonded to three equivalent Al(1) and one Si(1) atom to form NAl3Si tetrahedra that share corners with six equivalent C(1)AlSi3 tetrahedra and corners with six equivalent N(1)Al3Si tetrahedra. is represented by the CIF file [CIF]
data_AlSiCN
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.110
_cell_length_b   3.110
_cell_length_c   5.056
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   42.336
_cell_formula_units_Z   1
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
  Al  Al0  1  0.333  0.667  0.507  1.0
  Si  Si1  1  0.667  0.333  0.997  1.0
  C  C2  1  0.333  0.667  0.109  1.0
  N  N3  1  0.667  0.333  0.637  1.0
[/CIF]
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The material structure described by SiCAlN is Stannite-like structured and crystallizes in the trigonal P3m1 space group. Al(1) is bonded to one C(1) and three equivalent N(1) atoms to form AlCN3 tetrahedra that share corners with six equivalent Al(1)CN3 tetrahedra and corners with six equivalent Si(1)C3N tetrahedra. Si(1) is bonded to three equivalent C(1) and one N(1) atom to form SiC3N tetrahedra that share corners with six equivalent Al(1)CN3 tetrahedra and corners with six equivalent Si(1)C3N tetrahedra. C(1) is bonded to one Al(1) and three equivalent Si(1) atoms to form CAlSi3 tetrahedra that share corners with six equivalent C(1)AlSi3 tetrahedra and corners with six equivalent N(1)Al3Si tetrahedra. N(1) is bonded to three equivalent Al(1) and one Si(1) atom to form NAl3Si tetrahedra that share corners with six equivalent C(1)AlSi3 tetrahedra and corners with six equivalent N(1)Al3Si tetrahedra. is represented by the CIF file [CIF]
data_AlSiCN
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.110
_cell_length_b   3.110
_cell_length_c   5.056
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   42.336
_cell_formula_units_Z   1
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
  Al  Al0  1  0.333  0.667  0.507  1.0
  Si  Si1  1  0.667  0.333  0.997  1.0
  C  C2  1  0.333  0.667  0.109  1.0
  N  N3  1  0.667  0.333  0.637  1.0
[/CIF]
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