The material described by SrB2O4 crystallizes in the orthorhombic Pbcn space group. Sr(1) is bonded to two equivalent O(2) and six equivalent O(1) atoms to form distorted edge-sharing SrO8 hexagonal bipyramids. B(1) is bonded in a trigonal planar geometry to one O(1) and two equivalent O(2) atoms. There are two inequivalent O sites. In the first O site, O(2) is bonded in a 2-coordinate geometry to one Sr(1) and two equivalent B(1) atoms. In the second O site, O(1) is bonded in a distorted single-bond geometry to three equivalent Sr(1) and one B(1) atom. is represented by the CIF card [CIF]
data_Sr(BO2)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.348
_cell_length_b   6.569
_cell_length_c   12.054
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   344.267
_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
  Sr  Sr0  1  0.239  0.250  0.000  1.0
  Sr  Sr1  1  0.261  0.750  0.500  1.0
  Sr  Sr2  1  0.761  0.750  0.000  1.0
  Sr  Sr3  1  0.739  0.250  0.500  1.0
  B  B4  1  0.671  0.374  0.806  1.0
  B  B5  1  0.671  0.126  0.194  1.0
  B  B6  1  0.829  0.874  0.694  1.0
  B  B7  1  0.829  0.626  0.306  1.0
  B  B8  1  0.171  0.126  0.306  1.0
  B  B9  1  0.171  0.374  0.694  1.0
  B  B10  1  0.329  0.626  0.194  1.0
  B  B11  1  0.329  0.874  0.806  1.0
  O  O12  1  0.236  0.594  0.091  1.0
  O  O13  1  0.736  0.906  0.591  1.0
  O  O14  1  0.764  0.094  0.091  1.0
  O  O15  1  0.736  0.594  0.409  1.0
  O  O16  1  0.852  0.353  0.711  1.0
  O  O17  1  0.852  0.147  0.289  1.0
  O  O18  1  0.648  0.853  0.789  1.0
  O  O19  1  0.648  0.647  0.211  1.0
  O  O20  1  0.148  0.647  0.289  1.0
  O  O21  1  0.148  0.853  0.711  1.0
  O  O22  1  0.352  0.147  0.211  1.0
  O  O23  1  0.352  0.353  0.789  1.0
  O  O24  1  0.264  0.094  0.409  1.0
  O  O25  1  0.264  0.406  0.591  1.0
  O  O26  1  0.764  0.406  0.909  1.0
  O  O27  1  0.236  0.906  0.909  1.0
[/CIF]
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The material described by SrB2O4 crystallizes in the orthorhombic Pbcn space group. Sr(1) is bonded to two equivalent O(2) and six equivalent O(1) atoms to form distorted edge-sharing SrO8 hexagonal bipyramids. B(1) is bonded in a trigonal planar geometry to one O(1) and two equivalent O(2) atoms. There are two inequivalent O sites. In the first O site, O(2) is bonded in a 2-coordinate geometry to one Sr(1) and two equivalent B(1) atoms. In the second O site, O(1) is bonded in a distorted single-bond geometry to three equivalent Sr(1) and one B(1) atom. is represented by the CIF card [CIF]
data_Sr(BO2)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.348
_cell_length_b   6.569
_cell_length_c   12.054
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   344.267
_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
  Sr  Sr0  1  0.239  0.250  0.000  1.0
  Sr  Sr1  1  0.261  0.750  0.500  1.0
  Sr  Sr2  1  0.761  0.750  0.000  1.0
  Sr  Sr3  1  0.739  0.250  0.500  1.0
  B  B4  1  0.671  0.374  0.806  1.0
  B  B5  1  0.671  0.126  0.194  1.0
  B  B6  1  0.829  0.874  0.694  1.0
  B  B7  1  0.829  0.626  0.306  1.0
  B  B8  1  0.171  0.126  0.306  1.0
  B  B9  1  0.171  0.374  0.694  1.0
  B  B10  1  0.329  0.626  0.194  1.0
  B  B11  1  0.329  0.874  0.806  1.0
  O  O12  1  0.236  0.594  0.091  1.0
  O  O13  1  0.736  0.906  0.591  1.0
  O  O14  1  0.764  0.094  0.091  1.0
  O  O15  1  0.736  0.594  0.409  1.0
  O  O16  1  0.852  0.353  0.711  1.0
  O  O17  1  0.852  0.147  0.289  1.0
  O  O18  1  0.648  0.853  0.789  1.0
  O  O19  1  0.648  0.647  0.211  1.0
  O  O20  1  0.148  0.647  0.289  1.0
  O  O21  1  0.148  0.853  0.711  1.0
  O  O22  1  0.352  0.147  0.211  1.0
  O  O23  1  0.352  0.353  0.789  1.0
  O  O24  1  0.264  0.094  0.409  1.0
  O  O25  1  0.264  0.406  0.591  1.0
  O  O26  1  0.764  0.406  0.909  1.0
  O  O27  1  0.236  0.906  0.909  1.0
[/CIF]
.