The material described by Eu2PCl is Caswellsilverite-like structured and crystallizes in the tetragonal P4/mmm space group. There are two inequivalent Eu sites. In the first Eu site, Eu(1) is bonded to two equivalent P(1) and four equivalent Cl(1) atoms to form EuP2Cl4 octahedra that share corners with six equivalent Eu(1)P2Cl4 octahedra, edges with four equivalent Eu(1)P2Cl4 octahedra, and edges with eight equivalent Eu(2)P4Cl2 octahedra. The corner-sharing octahedra are not tilted. In the second Eu site, Eu(2) is bonded to four equivalent P(1) and two equivalent Cl(1) atoms to form EuP4Cl2 octahedra that share corners with six equivalent Eu(2)P4Cl2 octahedra, edges with four equivalent Eu(2)P4Cl2 octahedra, and edges with eight equivalent Eu(1)P2Cl4 octahedra. The corner-sharing octahedra are not tilted. P(1) is bonded to two equivalent Eu(1) and four equivalent Eu(2) atoms to form PEu6 octahedra that share corners with six equivalent P(1)Eu6 octahedra, edges with four equivalent P(1)Eu6 octahedra, and edges with eight equivalent Cl(1)Eu6 octahedra. The corner-sharing octahedra are not tilted. Cl(1) is bonded to two equivalent Eu(2) and four equivalent Eu(1) atoms to form ClEu6 octahedra that share corners with six equivalent Cl(1)Eu6 octahedra, edges with four equivalent Cl(1)Eu6 octahedra, and edges with eight equivalent P(1)Eu6 octahedra. The corner-sharing octahedra are not tilted. is represented by the CIF card [CIF]
data_Eu2PCl
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.228
_cell_length_b   4.228
_cell_length_c   5.911
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   105.664
_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
  Eu  Eu0  1  0.000  0.000  0.000  1.0
  Eu  Eu1  1  0.500  0.500  0.500  1.0
  P  P2  1  0.000  0.000  0.500  1.0
  Cl  Cl3  1  0.500  0.500  0.000  1.0
[/CIF]
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The material described by Eu2PCl is Caswellsilverite-like structured and crystallizes in the tetragonal P4/mmm space group. There are two inequivalent Eu sites. In the first Eu site, Eu(1) is bonded to two equivalent P(1) and four equivalent Cl(1) atoms to form EuP2Cl4 octahedra that share corners with six equivalent Eu(1)P2Cl4 octahedra, edges with four equivalent Eu(1)P2Cl4 octahedra, and edges with eight equivalent Eu(2)P4Cl2 octahedra. The corner-sharing octahedra are not tilted. In the second Eu site, Eu(2) is bonded to four equivalent P(1) and two equivalent Cl(1) atoms to form EuP4Cl2 octahedra that share corners with six equivalent Eu(2)P4Cl2 octahedra, edges with four equivalent Eu(2)P4Cl2 octahedra, and edges with eight equivalent Eu(1)P2Cl4 octahedra. The corner-sharing octahedra are not tilted. P(1) is bonded to two equivalent Eu(1) and four equivalent Eu(2) atoms to form PEu6 octahedra that share corners with six equivalent P(1)Eu6 octahedra, edges with four equivalent P(1)Eu6 octahedra, and edges with eight equivalent Cl(1)Eu6 octahedra. The corner-sharing octahedra are not tilted. Cl(1) is bonded to two equivalent Eu(2) and four equivalent Eu(1) atoms to form ClEu6 octahedra that share corners with six equivalent Cl(1)Eu6 octahedra, edges with four equivalent Cl(1)Eu6 octahedra, and edges with eight equivalent P(1)Eu6 octahedra. The corner-sharing octahedra are not tilted. is represented by the CIF card [CIF]
data_Eu2PCl
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.228
_cell_length_b   4.228
_cell_length_c   5.911
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   105.664
_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
  Eu  Eu0  1  0.000  0.000  0.000  1.0
  Eu  Eu1  1  0.500  0.500  0.500  1.0
  P  P2  1  0.000  0.000  0.500  1.0
  Cl  Cl3  1  0.500  0.500  0.000  1.0
[/CIF]
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