The structure described by SrNi5N4 crystallizes in the orthorhombic Pmmn space group. Sr(1) is bonded in a distorted bent 120 degrees geometry to two equivalent N(1) atoms. There are two inequivalent Ni sites. In the first Ni site, Ni(1) is bonded in a distorted trigonal planar geometry to one N(1) and two equivalent N(2) atoms. In the second Ni site, Ni(2) is bonded in a 4-coordinate geometry to two equivalent N(1) and two equivalent N(2) atoms. There are two inequivalent N sites. In the first N site, N(1) is bonded in a 5-coordinate geometry to one Sr(1), one Ni(2), two equivalent Ni(1), and one N(1) atom. In the second N site, N(2) is bonded in a 5-coordinate geometry to one Ni(2) and four equivalent Ni(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_SrNi5N4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.455
_cell_length_b   5.566
_cell_length_c   5.212
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   245.286
_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
  Sr  Sr0  1  0.750  0.250  0.851  1.0
  Sr  Sr1  1  0.250  0.750  0.149  1.0
  Ni  Ni2  1  0.595  0.519  0.343  1.0
  Ni  Ni3  1  0.905  0.519  0.343  1.0
  Ni  Ni4  1  0.595  0.981  0.343  1.0
  Ni  Ni5  1  0.905  0.981  0.343  1.0
  Ni  Ni6  1  0.405  0.481  0.657  1.0
  Ni  Ni7  1  0.095  0.481  0.657  1.0
  Ni  Ni8  1  0.405  0.019  0.657  1.0
  Ni  Ni9  1  0.095  0.019  0.657  1.0
  Ni  Ni10  1  0.750  0.750  0.700  1.0
  Ni  Ni11  1  0.250  0.250  0.300  1.0
  N  N12  1  0.750  0.869  0.100  1.0
  N  N13  1  0.750  0.631  0.100  1.0
  N  N14  1  0.250  0.131  0.900  1.0
  N  N15  1  0.250  0.369  0.900  1.0
  N  N16  1  0.534  0.750  0.623  1.0
  N  N17  1  0.966  0.750  0.623  1.0
  N  N18  1  0.466  0.250  0.377  1.0
  N  N19  1  0.034  0.250  0.377  1.0
[/CIF]
.
The structure described by SrNi5N4 crystallizes in the orthorhombic Pmmn space group. Sr(1) is bonded in a distorted bent 120 degrees geometry to two equivalent N(1) atoms. There are two inequivalent Ni sites. In the first Ni site, Ni(1) is bonded in a distorted trigonal planar geometry to one N(1) and two equivalent N(2) atoms. In the second Ni site, Ni(2) is bonded in a 4-coordinate geometry to two equivalent N(1) and two equivalent N(2) atoms. There are two inequivalent N sites. In the first N site, N(1) is bonded in a 5-coordinate geometry to one Sr(1), one Ni(2), two equivalent Ni(1), and one N(1) atom. In the second N site, N(2) is bonded in a 5-coordinate geometry to one Ni(2) and four equivalent Ni(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_SrNi5N4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.455
_cell_length_b   5.566
_cell_length_c   5.212
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   245.286
_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
  Sr  Sr0  1  0.750  0.250  0.851  1.0
  Sr  Sr1  1  0.250  0.750  0.149  1.0
  Ni  Ni2  1  0.595  0.519  0.343  1.0
  Ni  Ni3  1  0.905  0.519  0.343  1.0
  Ni  Ni4  1  0.595  0.981  0.343  1.0
  Ni  Ni5  1  0.905  0.981  0.343  1.0
  Ni  Ni6  1  0.405  0.481  0.657  1.0
  Ni  Ni7  1  0.095  0.481  0.657  1.0
  Ni  Ni8  1  0.405  0.019  0.657  1.0
  Ni  Ni9  1  0.095  0.019  0.657  1.0
  Ni  Ni10  1  0.750  0.750  0.700  1.0
  Ni  Ni11  1  0.250  0.250  0.300  1.0
  N  N12  1  0.750  0.869  0.100  1.0
  N  N13  1  0.750  0.631  0.100  1.0
  N  N14  1  0.250  0.131  0.900  1.0
  N  N15  1  0.250  0.369  0.900  1.0
  N  N16  1  0.534  0.750  0.623  1.0
  N  N17  1  0.966  0.750  0.623  1.0
  N  N18  1  0.466  0.250  0.377  1.0
  N  N19  1  0.034  0.250  0.377  1.0
[/CIF]
.