The material described by Eu2ZnP2 crystallizes in the orthorhombic Cmc2_1 space group. There are two inequivalent Eu sites. In the first Eu site, Eu(1) is bonded to two equivalent P(1) and three equivalent P(2) atoms to form a mixture of distorted corner and edge-sharing EuP5 trigonal bipyramids. In the second Eu site, Eu(2) is bonded in a 5-coordinate geometry to one P(2) and four equivalent P(1) atoms. Zn(1) is bonded in a 4-coordinate geometry to two equivalent P(1) and two equivalent P(2) atoms. There are two inequivalent P sites. In the first P site, P(1) is bonded in a 8-coordinate geometry to two equivalent Eu(1), four equivalent Eu(2), and two equivalent Zn(1) atoms. In the second P site, P(2) is bonded in a 6-coordinate geometry to one Eu(2), three equivalent Eu(1), and two equivalent Zn(1) atoms. is represented by the CIF file [CIF]
data_Eu2ZnP2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.161
_cell_length_b   8.161
_cell_length_c   7.245
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   150.561
_symmetry_Int_Tables_number   1
_cell_volume   237.159
_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
  Eu  Eu0  1  0.706  0.294  0.467  1.0
  Eu  Eu1  1  0.294  0.706  0.967  1.0
  Eu  Eu2  1  0.536  0.464  0.798  1.0
  Eu  Eu3  1  0.464  0.536  0.298  1.0
  Zn  Zn4  1  0.906  0.094  0.650  1.0
  Zn  Zn5  1  0.094  0.906  0.150  1.0
  P  P6  1  0.939  0.061  0.001  1.0
  P  P7  1  0.061  0.939  0.501  1.0
  P  P8  1  0.668  0.332  0.071  1.0
  P  P9  1  0.332  0.668  0.571  1.0
[/CIF]
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The material described by Eu2ZnP2 crystallizes in the orthorhombic Cmc2_1 space group. There are two inequivalent Eu sites. In the first Eu site, Eu(1) is bonded to two equivalent P(1) and three equivalent P(2) atoms to form a mixture of distorted corner and edge-sharing EuP5 trigonal bipyramids. In the second Eu site, Eu(2) is bonded in a 5-coordinate geometry to one P(2) and four equivalent P(1) atoms. Zn(1) is bonded in a 4-coordinate geometry to two equivalent P(1) and two equivalent P(2) atoms. There are two inequivalent P sites. In the first P site, P(1) is bonded in a 8-coordinate geometry to two equivalent Eu(1), four equivalent Eu(2), and two equivalent Zn(1) atoms. In the second P site, P(2) is bonded in a 6-coordinate geometry to one Eu(2), three equivalent Eu(1), and two equivalent Zn(1) atoms. is represented by the CIF file [CIF]
data_Eu2ZnP2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.161
_cell_length_b   8.161
_cell_length_c   7.245
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   150.561
_symmetry_Int_Tables_number   1
_cell_volume   237.159
_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
  Eu  Eu0  1  0.706  0.294  0.467  1.0
  Eu  Eu1  1  0.294  0.706  0.967  1.0
  Eu  Eu2  1  0.536  0.464  0.798  1.0
  Eu  Eu3  1  0.464  0.536  0.298  1.0
  Zn  Zn4  1  0.906  0.094  0.650  1.0
  Zn  Zn5  1  0.094  0.906  0.150  1.0
  P  P6  1  0.939  0.061  0.001  1.0
  P  P7  1  0.061  0.939  0.501  1.0
  P  P8  1  0.668  0.332  0.071  1.0
  P  P9  1  0.332  0.668  0.571  1.0
[/CIF]
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