The structure described by NiSi2P3 is Enargite-like structured and crystallizes in the orthorhombic Imm2 space group. Ni(1) is bonded to two equivalent P(1) and two equivalent P(2) atoms to form NiP4 tetrahedra that share corners with two equivalent Ni(1)P4 tetrahedra and corners with ten equivalent Si(1)P4 tetrahedra. Si(1) is bonded to one P(1) and three equivalent P(2) atoms to form SiP4 tetrahedra that share corners with five equivalent Ni(1)P4 tetrahedra and corners with seven equivalent Si(1)P4 tetrahedra. There are two inequivalent P sites. In the first P site, P(1) is bonded to two equivalent Ni(1) and two equivalent Si(1) atoms to form PSi2Ni2 tetrahedra that share corners with two equivalent P(1)Si2Ni2 tetrahedra and corners with ten equivalent P(2)Si3Ni tetrahedra. In the second P site, P(2) is bonded to one Ni(1) and three equivalent Si(1) atoms to form PSi3Ni tetrahedra that share corners with five equivalent P(1)Si2Ni2 tetrahedra and corners with seven equivalent P(2)Si3Ni tetrahedra. is represented by the CIF file [CIF]
data_Si2NiP3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.508
_cell_length_b   5.281
_cell_length_c   6.379
_cell_angle_alpha   114.453
_cell_angle_beta   105.959
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   102.535
_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
  Si  Si0  1  0.835  0.078  0.670  1.0
  Si  Si1  1  0.165  0.408  0.330  1.0
  Ni  Ni2  1  0.500  0.752  0.000  1.0
  P  P3  1  0.000  0.995  0.000  1.0
  P  P4  1  0.338  0.349  0.676  1.0
  P  P5  1  0.662  0.674  0.324  1.0
[/CIF]
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The structure described by NiSi2P3 is Enargite-like structured and crystallizes in the orthorhombic Imm2 space group. Ni(1) is bonded to two equivalent P(1) and two equivalent P(2) atoms to form NiP4 tetrahedra that share corners with two equivalent Ni(1)P4 tetrahedra and corners with ten equivalent Si(1)P4 tetrahedra. Si(1) is bonded to one P(1) and three equivalent P(2) atoms to form SiP4 tetrahedra that share corners with five equivalent Ni(1)P4 tetrahedra and corners with seven equivalent Si(1)P4 tetrahedra. There are two inequivalent P sites. In the first P site, P(1) is bonded to two equivalent Ni(1) and two equivalent Si(1) atoms to form PSi2Ni2 tetrahedra that share corners with two equivalent P(1)Si2Ni2 tetrahedra and corners with ten equivalent P(2)Si3Ni tetrahedra. In the second P site, P(2) is bonded to one Ni(1) and three equivalent Si(1) atoms to form PSi3Ni tetrahedra that share corners with five equivalent P(1)Si2Ni2 tetrahedra and corners with seven equivalent P(2)Si3Ni tetrahedra. is represented by the CIF file [CIF]
data_Si2NiP3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.508
_cell_length_b   5.281
_cell_length_c   6.379
_cell_angle_alpha   114.453
_cell_angle_beta   105.959
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   102.535
_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
  Si  Si0  1  0.835  0.078  0.670  1.0
  Si  Si1  1  0.165  0.408  0.330  1.0
  Ni  Ni2  1  0.500  0.752  0.000  1.0
  P  P3  1  0.000  0.995  0.000  1.0
  P  P4  1  0.338  0.349  0.676  1.0
  P  P5  1  0.662  0.674  0.324  1.0
[/CIF]
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