The material described by Eu5B3O9Cl crystallizes in the orthorhombic C222_1 space group. There are four inequivalent Eu sites. In the first Eu site, Eu(1) is bonded in a 9-coordinate geometry to one O(1), two equivalent O(2), two equivalent O(4), two equivalent O(5), and two equivalent Cl(1) atoms. In the second Eu site, Eu(2) is bonded in a 8-coordinate geometry to one O(2), one O(3), two equivalent O(4), two equivalent O(5), and two equivalent Cl(1) atoms. In the third Eu site, Eu(3) is bonded in a 8-coordinate geometry to two equivalent O(1), two equivalent O(2), two equivalent O(3), and two equivalent O(4) atoms. In the fourth Eu site, Eu(4) is bonded in a 8-coordinate geometry to two equivalent O(1), two equivalent O(2), two equivalent O(3), and two equivalent O(4) atoms. There are two inequivalent B sites. In the first B site, B(1) is bonded in a trigonal planar geometry to one O(2), one O(3), and one O(5) atom. In the second B site, B(2) is bonded in a trigonal planar geometry to one O(1) and two equivalent O(4) atoms. There are five inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to one Eu(1), two equivalent Eu(3), two equivalent Eu(4), and one B(2) atom. In the second O site, O(2) is bonded in a distorted single-bond geometry to one Eu(1), one Eu(2), one Eu(3), one Eu(4), and one B(1) atom. In the third O site, O(3) is bonded in a distorted single-bond geometry to one Eu(2), one Eu(3), one Eu(4), and one B(1) atom. In the fourth O site, O(4) is bonded in a distorted single-bond geometry to one Eu(1), one Eu(3), one Eu(4), two equivalent Eu(2), and one B(2) atom. In the fifth O site, O(5) is bonded in a 4-coordinate geometry to one Eu(1), two equivalent Eu(2), and one B(1) atom. Cl(1) is bonded in a 6-coordinate geometry to two equivalent Eu(1) and four equivalent Eu(2) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Eu5B3ClO9
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.754
_cell_length_b   8.754
_cell_length_c   7.445
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   109.785
_symmetry_Int_Tables_number   1
_cell_volume   536.820
_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  0.239  0.239  0.000  1.0
  Eu  Eu1  1  0.761  0.761  0.500  1.0
  Eu  Eu2  1  0.995  0.740  0.061  1.0
  Eu  Eu3  1  0.740  0.995  0.939  1.0
  Eu  Eu4  1  0.005  0.260  0.561  1.0
  Eu  Eu5  1  0.260  0.005  0.439  1.0
  Eu  Eu6  1  0.635  0.365  0.250  1.0
  Eu  Eu7  1  0.365  0.635  0.750  1.0
  Eu  Eu8  1  0.362  0.638  0.250  1.0
  Eu  Eu9  1  0.638  0.362  0.750  1.0
  B  B10  1  0.410  0.986  0.031  1.0
  B  B11  1  0.986  0.410  0.969  1.0
  B  B12  1  0.590  0.014  0.531  1.0
  B  B13  1  0.014  0.590  0.469  1.0
  B  B14  1  0.630  0.630  0.000  1.0
  B  B15  1  0.370  0.370  0.500  1.0
  Cl  Cl16  1  0.948  0.052  0.250  1.0
  Cl  Cl17  1  0.052  0.948  0.750  1.0
  O  O18  1  0.491  0.491  0.000  1.0
  O  O19  1  0.509  0.509  0.500  1.0
  O  O20  1  0.522  0.140  0.992  1.0
  O  O21  1  0.140  0.522  0.008  1.0
  O  O22  1  0.478  0.860  0.492  1.0
  O  O23  1  0.860  0.478  0.508  1.0
  O  O24  1  0.848  0.446  0.013  1.0
  O  O25  1  0.446  0.848  0.987  1.0
  O  O26  1  0.152  0.554  0.513  1.0
  O  O27  1  0.554  0.152  0.487  1.0
  O  O28  1  0.303  0.304  0.663  1.0
  O  O29  1  0.304  0.303  0.337  1.0
  O  O30  1  0.697  0.696  0.163  1.0
  O  O31  1  0.696  0.697  0.837  1.0
  O  O32  1  0.266  0.972  0.117  1.0
  O  O33  1  0.972  0.266  0.883  1.0
  O  O34  1  0.734  0.028  0.617  1.0
  O  O35  1  0.028  0.734  0.383  1.0
[/CIF]
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The material described by Eu5B3O9Cl crystallizes in the orthorhombic C222_1 space group. There are four inequivalent Eu sites. In the first Eu site, Eu(1) is bonded in a 9-coordinate geometry to one O(1), two equivalent O(2), two equivalent O(4), two equivalent O(5), and two equivalent Cl(1) atoms. In the second Eu site, Eu(2) is bonded in a 8-coordinate geometry to one O(2), one O(3), two equivalent O(4), two equivalent O(5), and two equivalent Cl(1) atoms. In the third Eu site, Eu(3) is bonded in a 8-coordinate geometry to two equivalent O(1), two equivalent O(2), two equivalent O(3), and two equivalent O(4) atoms. In the fourth Eu site, Eu(4) is bonded in a 8-coordinate geometry to two equivalent O(1), two equivalent O(2), two equivalent O(3), and two equivalent O(4) atoms. There are two inequivalent B sites. In the first B site, B(1) is bonded in a trigonal planar geometry to one O(2), one O(3), and one O(5) atom. In the second B site, B(2) is bonded in a trigonal planar geometry to one O(1) and two equivalent O(4) atoms. There are five inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to one Eu(1), two equivalent Eu(3), two equivalent Eu(4), and one B(2) atom. In the second O site, O(2) is bonded in a distorted single-bond geometry to one Eu(1), one Eu(2), one Eu(3), one Eu(4), and one B(1) atom. In the third O site, O(3) is bonded in a distorted single-bond geometry to one Eu(2), one Eu(3), one Eu(4), and one B(1) atom. In the fourth O site, O(4) is bonded in a distorted single-bond geometry to one Eu(1), one Eu(3), one Eu(4), two equivalent Eu(2), and one B(2) atom. In the fifth O site, O(5) is bonded in a 4-coordinate geometry to one Eu(1), two equivalent Eu(2), and one B(1) atom. Cl(1) is bonded in a 6-coordinate geometry to two equivalent Eu(1) and four equivalent Eu(2) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Eu5B3ClO9
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.754
_cell_length_b   8.754
_cell_length_c   7.445
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   109.785
_symmetry_Int_Tables_number   1
_cell_volume   536.820
_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  0.239  0.239  0.000  1.0
  Eu  Eu1  1  0.761  0.761  0.500  1.0
  Eu  Eu2  1  0.995  0.740  0.061  1.0
  Eu  Eu3  1  0.740  0.995  0.939  1.0
  Eu  Eu4  1  0.005  0.260  0.561  1.0
  Eu  Eu5  1  0.260  0.005  0.439  1.0
  Eu  Eu6  1  0.635  0.365  0.250  1.0
  Eu  Eu7  1  0.365  0.635  0.750  1.0
  Eu  Eu8  1  0.362  0.638  0.250  1.0
  Eu  Eu9  1  0.638  0.362  0.750  1.0
  B  B10  1  0.410  0.986  0.031  1.0
  B  B11  1  0.986  0.410  0.969  1.0
  B  B12  1  0.590  0.014  0.531  1.0
  B  B13  1  0.014  0.590  0.469  1.0
  B  B14  1  0.630  0.630  0.000  1.0
  B  B15  1  0.370  0.370  0.500  1.0
  Cl  Cl16  1  0.948  0.052  0.250  1.0
  Cl  Cl17  1  0.052  0.948  0.750  1.0
  O  O18  1  0.491  0.491  0.000  1.0
  O  O19  1  0.509  0.509  0.500  1.0
  O  O20  1  0.522  0.140  0.992  1.0
  O  O21  1  0.140  0.522  0.008  1.0
  O  O22  1  0.478  0.860  0.492  1.0
  O  O23  1  0.860  0.478  0.508  1.0
  O  O24  1  0.848  0.446  0.013  1.0
  O  O25  1  0.446  0.848  0.987  1.0
  O  O26  1  0.152  0.554  0.513  1.0
  O  O27  1  0.554  0.152  0.487  1.0
  O  O28  1  0.303  0.304  0.663  1.0
  O  O29  1  0.304  0.303  0.337  1.0
  O  O30  1  0.697  0.696  0.163  1.0
  O  O31  1  0.696  0.697  0.837  1.0
  O  O32  1  0.266  0.972  0.117  1.0
  O  O33  1  0.972  0.266  0.883  1.0
  O  O34  1  0.734  0.028  0.617  1.0
  O  O35  1  0.028  0.734  0.383  1.0
[/CIF]
.