The material described by VSiN2 is beta beryllia-derived structured and crystallizes in the orthorhombic Pna2_1 space group. V(1) is bonded to two equivalent N(1) and two equivalent N(2) atoms to form distorted VN4 trigonal pyramids that share corners with eight equivalent Si(1)N4 tetrahedra and corners with four equivalent V(1)N4 trigonal pyramids. Si(1) is bonded to two equivalent N(1) and two equivalent N(2) atoms to form SiN4 tetrahedra that share corners with four equivalent Si(1)N4 tetrahedra and corners with eight equivalent V(1)N4 trigonal pyramids. There are two inequivalent N sites. In the first N site, N(1) is bonded to two equivalent V(1) and two equivalent Si(1) atoms to form distorted corner-sharing NV2Si2 tetrahedra. In the second N site, N(2) is bonded to two equivalent V(1) and two equivalent Si(1) atoms to form corner-sharing NV2Si2 tetrahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_VSiN2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.981
_cell_length_b   6.329
_cell_length_c   5.223
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   164.626
_cell_formula_units_Z   4
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
  V  V0  1  0.574  0.843  0.029  1.0
  V  V1  1  0.426  0.157  0.529  1.0
  V  V2  1  0.926  0.343  0.529  1.0
  V  V3  1  0.074  0.657  0.029  1.0
  Si  Si4  1  0.594  0.381  0.993  1.0
  Si  Si5  1  0.406  0.619  0.493  1.0
  Si  Si6  1  0.906  0.881  0.493  1.0
  Si  Si7  1  0.094  0.119  0.993  1.0
  N  N8  1  0.557  0.408  0.330  1.0
  N  N9  1  0.443  0.592  0.830  1.0
  N  N10  1  0.943  0.908  0.830  1.0
  N  N11  1  0.057  0.092  0.330  1.0
  N  N12  1  0.565  0.859  0.418  1.0
  N  N13  1  0.435  0.141  0.918  1.0
  N  N14  1  0.935  0.359  0.918  1.0
  N  N15  1  0.065  0.641  0.418  1.0
[/CIF]
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The material described by VSiN2 is beta beryllia-derived structured and crystallizes in the orthorhombic Pna2_1 space group. V(1) is bonded to two equivalent N(1) and two equivalent N(2) atoms to form distorted VN4 trigonal pyramids that share corners with eight equivalent Si(1)N4 tetrahedra and corners with four equivalent V(1)N4 trigonal pyramids. Si(1) is bonded to two equivalent N(1) and two equivalent N(2) atoms to form SiN4 tetrahedra that share corners with four equivalent Si(1)N4 tetrahedra and corners with eight equivalent V(1)N4 trigonal pyramids. There are two inequivalent N sites. In the first N site, N(1) is bonded to two equivalent V(1) and two equivalent Si(1) atoms to form distorted corner-sharing NV2Si2 tetrahedra. In the second N site, N(2) is bonded to two equivalent V(1) and two equivalent Si(1) atoms to form corner-sharing NV2Si2 tetrahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_VSiN2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.981
_cell_length_b   6.329
_cell_length_c   5.223
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   164.626
_cell_formula_units_Z   4
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
  V  V0  1  0.574  0.843  0.029  1.0
  V  V1  1  0.426  0.157  0.529  1.0
  V  V2  1  0.926  0.343  0.529  1.0
  V  V3  1  0.074  0.657  0.029  1.0
  Si  Si4  1  0.594  0.381  0.993  1.0
  Si  Si5  1  0.406  0.619  0.493  1.0
  Si  Si6  1  0.906  0.881  0.493  1.0
  Si  Si7  1  0.094  0.119  0.993  1.0
  N  N8  1  0.557  0.408  0.330  1.0
  N  N9  1  0.443  0.592  0.830  1.0
  N  N10  1  0.943  0.908  0.830  1.0
  N  N11  1  0.057  0.092  0.330  1.0
  N  N12  1  0.565  0.859  0.418  1.0
  N  N13  1  0.435  0.141  0.918  1.0
  N  N14  1  0.935  0.359  0.918  1.0
  N  N15  1  0.065  0.641  0.418  1.0
[/CIF]
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