The material structure described by ErNiP is hexagonal omega structure-derived structured and crystallizes in the hexagonal P6_3/mmc space group. There are two inequivalent Er sites. In the first Er site, Er(1) is bonded to six equivalent Ni(1) and six equivalent P(1) atoms to form a mixture of face and edge-sharing ErNi6P6 cuboctahedra. In the second Er site, Er(2) is bonded to six equivalent Ni(1) and six equivalent P(1) atoms to form a mixture of face and edge-sharing ErNi6P6 cuboctahedra. Ni(1) is bonded in a 9-coordinate geometry to three equivalent Er(1), three equivalent Er(2), and three equivalent P(1) atoms. P(1) is bonded in a 9-coordinate geometry to three equivalent Er(1), three equivalent Er(2), and three equivalent Ni(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_ErNiP
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.850
_cell_length_b   3.850
_cell_length_c   15.231
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   195.527
_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
  Er  Er0  1  0.000  0.000  0.500  1.0
  Er  Er1  1  0.000  0.000  1.000  1.0
  Er  Er2  1  0.000  0.000  0.250  1.0
  Er  Er3  1  0.000  0.000  0.750  1.0
  Ni  Ni4  1  0.333  0.667  0.371  1.0
  Ni  Ni5  1  0.667  0.333  0.629  1.0
  Ni  Ni6  1  0.667  0.333  0.871  1.0
  Ni  Ni7  1  0.333  0.667  0.129  1.0
  P  P8  1  0.333  0.667  0.878  1.0
  P  P9  1  0.667  0.333  0.122  1.0
  P  P10  1  0.667  0.333  0.378  1.0
  P  P11  1  0.333  0.667  0.622  1.0
[/CIF]
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The material structure described by ErNiP is hexagonal omega structure-derived structured and crystallizes in the hexagonal P6_3/mmc space group. There are two inequivalent Er sites. In the first Er site, Er(1) is bonded to six equivalent Ni(1) and six equivalent P(1) atoms to form a mixture of face and edge-sharing ErNi6P6 cuboctahedra. In the second Er site, Er(2) is bonded to six equivalent Ni(1) and six equivalent P(1) atoms to form a mixture of face and edge-sharing ErNi6P6 cuboctahedra. Ni(1) is bonded in a 9-coordinate geometry to three equivalent Er(1), three equivalent Er(2), and three equivalent P(1) atoms. P(1) is bonded in a 9-coordinate geometry to three equivalent Er(1), three equivalent Er(2), and three equivalent Ni(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_ErNiP
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.850
_cell_length_b   3.850
_cell_length_c   15.231
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   195.527
_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
  Er  Er0  1  0.000  0.000  0.500  1.0
  Er  Er1  1  0.000  0.000  1.000  1.0
  Er  Er2  1  0.000  0.000  0.250  1.0
  Er  Er3  1  0.000  0.000  0.750  1.0
  Ni  Ni4  1  0.333  0.667  0.371  1.0
  Ni  Ni5  1  0.667  0.333  0.629  1.0
  Ni  Ni6  1  0.667  0.333  0.871  1.0
  Ni  Ni7  1  0.333  0.667  0.129  1.0
  P  P8  1  0.333  0.667  0.878  1.0
  P  P9  1  0.667  0.333  0.122  1.0
  P  P10  1  0.667  0.333  0.378  1.0
  P  P11  1  0.333  0.667  0.622  1.0
[/CIF]
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