The compound described by EuBN2 crystallizes in the trigonal R-3c space group. Eu(1) is bonded to two equivalent N(1) and five equivalent N(2) atoms to form a mixture of distorted corner, edge, and face-sharing EuN7 pentagonal bipyramids. B(1) is bonded in a trigonal planar geometry to one N(2) and two equivalent N(1) atoms. There are two inequivalent N sites. In the first N site, N(1) is bonded in a distorted bent 120 degrees geometry to two equivalent Eu(1) and two equivalent B(1) atoms. In the second N site, N(2) is bonded in a distorted single-bond geometry to five equivalent Eu(1) and one B(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_EuBN2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.302
_cell_length_b   7.302
_cell_length_c   7.302
_cell_angle_alpha   110.385
_cell_angle_beta   110.385
_cell_angle_gamma   110.385
_symmetry_Int_Tables_number   1
_cell_volume   289.134
_cell_formula_units_Z   6
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  0.300  0.200  0.750  1.0
  Eu  Eu1  1  0.750  0.300  0.200  1.0
  Eu  Eu2  1  0.200  0.750  0.300  1.0
  Eu  Eu3  1  0.250  0.700  0.800  1.0
  Eu  Eu4  1  0.800  0.250  0.700  1.0
  Eu  Eu5  1  0.700  0.800  0.250  1.0
  B  B6  1  0.629  0.871  0.750  1.0
  B  B7  1  0.750  0.629  0.871  1.0
  B  B8  1  0.871  0.750  0.629  1.0
  B  B9  1  0.250  0.371  0.129  1.0
  B  B10  1  0.129  0.250  0.371  1.0
  B  B11  1  0.371  0.129  0.250  1.0
  N  N12  1  0.873  0.627  0.750  1.0
  N  N13  1  0.750  0.873  0.627  1.0
  N  N14  1  0.627  0.750  0.873  1.0
  N  N15  1  0.250  0.127  0.373  1.0
  N  N16  1  0.373  0.250  0.127  1.0
  N  N17  1  0.127  0.373  0.250  1.0
  N  N18  1  0.507  0.993  0.750  1.0
  N  N19  1  0.750  0.507  0.993  1.0
  N  N20  1  0.993  0.750  0.507  1.0
  N  N21  1  0.250  0.493  0.007  1.0
  N  N22  1  0.007  0.250  0.493  1.0
  N  N23  1  0.493  0.007  0.250  1.0
[/CIF]
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The compound described by EuBN2 crystallizes in the trigonal R-3c space group. Eu(1) is bonded to two equivalent N(1) and five equivalent N(2) atoms to form a mixture of distorted corner, edge, and face-sharing EuN7 pentagonal bipyramids. B(1) is bonded in a trigonal planar geometry to one N(2) and two equivalent N(1) atoms. There are two inequivalent N sites. In the first N site, N(1) is bonded in a distorted bent 120 degrees geometry to two equivalent Eu(1) and two equivalent B(1) atoms. In the second N site, N(2) is bonded in a distorted single-bond geometry to five equivalent Eu(1) and one B(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_EuBN2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.302
_cell_length_b   7.302
_cell_length_c   7.302
_cell_angle_alpha   110.385
_cell_angle_beta   110.385
_cell_angle_gamma   110.385
_symmetry_Int_Tables_number   1
_cell_volume   289.134
_cell_formula_units_Z   6
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  0.300  0.200  0.750  1.0
  Eu  Eu1  1  0.750  0.300  0.200  1.0
  Eu  Eu2  1  0.200  0.750  0.300  1.0
  Eu  Eu3  1  0.250  0.700  0.800  1.0
  Eu  Eu4  1  0.800  0.250  0.700  1.0
  Eu  Eu5  1  0.700  0.800  0.250  1.0
  B  B6  1  0.629  0.871  0.750  1.0
  B  B7  1  0.750  0.629  0.871  1.0
  B  B8  1  0.871  0.750  0.629  1.0
  B  B9  1  0.250  0.371  0.129  1.0
  B  B10  1  0.129  0.250  0.371  1.0
  B  B11  1  0.371  0.129  0.250  1.0
  N  N12  1  0.873  0.627  0.750  1.0
  N  N13  1  0.750  0.873  0.627  1.0
  N  N14  1  0.627  0.750  0.873  1.0
  N  N15  1  0.250  0.127  0.373  1.0
  N  N16  1  0.373  0.250  0.127  1.0
  N  N17  1  0.127  0.373  0.250  1.0
  N  N18  1  0.507  0.993  0.750  1.0
  N  N19  1  0.750  0.507  0.993  1.0
  N  N20  1  0.993  0.750  0.507  1.0
  N  N21  1  0.250  0.493  0.007  1.0
  N  N22  1  0.007  0.250  0.493  1.0
  N  N23  1  0.493  0.007  0.250  1.0
[/CIF]
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