The compound described by Sr3B6O11F2 crystallizes in the monoclinic P2_1 space group. There are three inequivalent Sr sites. In the first Sr site, Sr(1) is bonded in a 9-coordinate geometry to one O(2), one O(3), one O(5), one O(6), one O(7), one O(8), one O(9), one F(1), and one F(2) atom. In the second Sr site, Sr(2) is bonded in a 8-coordinate geometry to one O(1), one O(10), one O(2), one O(3), one O(4), one O(5), and two equivalent F(2) atoms. In the third Sr site, Sr(3) is bonded in a 6-coordinate geometry to one O(10), one O(11), one O(4), one O(8), and two equivalent F(1) atoms. There are six inequivalent B sites. In the first B site, B(1) is bonded to one O(10), one O(7), one O(8), and one O(9) atom to form corner-sharing BO4 tetrahedra. In the second B site, B(2) is bonded to one O(11), one O(6), one O(8), and one O(9) atom to form corner-sharing BO4 tetrahedra. In the third B site, B(3) is bonded to one O(2), one O(4), one O(5), and one O(7) atom to form corner-sharing BO4 tetrahedra. In the fourth B site, B(4) is bonded to one O(1), one O(11), one O(3), and one O(4) atom to form corner-sharing BO4 tetrahedra. In the fifth B site, B(5) is bonded in a trigonal planar geometry to one O(2), one O(3), and one O(5) atom. In the sixth B site, B(6) is bonded in a trigonal planar geometry to one O(1), one O(10), and one O(6) atom. There are eleven inequivalent O sites. In the first O site, O(1) is bonded in a bent 120 degrees geometry to one Sr(2), one B(4), and one B(6) atom. In the second O site, O(2) is bonded in a distorted bent 120 degrees geometry to one Sr(1), one Sr(2), one B(3), and one B(5) atom. In the third O site, O(3) is bonded in a distorted bent 120 degrees geometry to one Sr(1), one Sr(2), one B(4), and one B(5) atom. In the fourth O site, O(4) is bonded in a distorted bent 120 degrees geometry to one Sr(2), one Sr(3), one B(3), and one B(4) atom. In the fifth O site, O(5) is bonded in a bent 120 degrees geometry to one Sr(1), one Sr(2), one B(3), and one B(5) atom. In the sixth O site, O(6) is bonded in a distorted bent 120 degrees geometry to one Sr(1), one B(2), and one B(6) atom. In the seventh O site, O(7) is bonded in a distorted bent 120 degrees geometry to one Sr(1), one B(1), and one B(3) atom. In the eighth O site, O(8) is bonded in a distorted bent 120 degrees geometry to one Sr(1), one Sr(3), one B(1), and one B(2) atom. In the ninth O site, O(9) is bonded in a 2-coordinate geometry to one Sr(1), one B(1), and one B(2) atom. In the tenth O site, O(10) is bonded in a distorted bent 120 degrees geometry to one Sr(2), one Sr(3), one B(1), and one B(6) atom. In the eleventh O site, O(11) is bonded in a distorted bent 120 degrees geometry to one Sr(3), one B(2), and one B(4) atom. There are two inequivalent F sites. In the first F site, F(1) is bonded in a trigonal planar geometry to one Sr(1) and two equivalent Sr(3) atoms. In the second F site, F(2) is bonded in a trigonal planar geometry to one Sr(1) and two equivalent Sr(2) atoms. is represented by the CIF file [CIF]
data_Sr3B6O11F2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.334
_cell_length_b   6.465
_cell_length_c   9.493
_cell_angle_alpha   78.270
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   500.815
_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
  Sr  Sr0  1  0.260  0.981  0.237  1.0
  Sr  Sr1  1  0.760  0.019  0.763  1.0
  Sr  Sr2  1  0.614  0.561  0.468  1.0
  Sr  Sr3  1  0.114  0.439  0.532  1.0
  Sr  Sr4  1  0.102  0.546  0.950  1.0
  Sr  Sr5  1  0.602  0.454  0.050  1.0
  B  B6  1  0.619  0.931  0.143  1.0
  B  B7  1  0.119  0.069  0.857  1.0
  B  B8  1  0.396  0.898  0.936  1.0
  B  B9  1  0.896  0.102  0.064  1.0
  B  B10  1  0.159  0.895  0.627  1.0
  B  B11  1  0.659  0.105  0.373  1.0
  B  B12  1  0.901  0.327  0.266  1.0
  B  B13  1  0.401  0.673  0.734  1.0
  B  B14  1  0.943  0.992  0.444  1.0
  B  B15  1  0.443  0.008  0.556  1.0
  B  B16  1  0.877  0.729  0.209  1.0
  B  B17  1  0.377  0.271  0.791  1.0
  O  O18  1  0.959  0.547  0.271  1.0
  O  O19  1  0.459  0.453  0.729  1.0
  O  O20  1  0.047  0.841  0.515  1.0
  O  O21  1  0.547  0.159  0.485  1.0
  O  O22  1  0.004  0.183  0.372  1.0
  O  O23  1  0.504  0.817  0.628  1.0
  O  O24  1  0.732  0.305  0.306  1.0
  O  O25  1  0.232  0.695  0.694  1.0
  O  O26  1  0.782  0.948  0.449  1.0
  O  O27  1  0.282  0.052  0.551  1.0
  O  O28  1  0.964  0.910  0.165  1.0
  O  O29  1  0.464  0.090  0.835  1.0
  O  O30  1  0.065  0.992  0.726  1.0
  O  O31  1  0.565  0.008  0.274  1.0
  O  O32  1  0.220  0.921  0.956  1.0
  O  O33  1  0.720  0.079  0.044  1.0
  O  O34  1  0.472  0.870  0.078  1.0
  O  O35  1  0.972  0.130  0.922  1.0
  O  O36  1  0.712  0.727  0.197  1.0
  O  O37  1  0.212  0.273  0.803  1.0
  O  O38  1  0.931  0.293  0.122  1.0
  O  O39  1  0.431  0.707  0.878  1.0
  F  F40  1  0.318  0.338  0.104  1.0
  F  F41  1  0.818  0.662  0.896  1.0
  F  F42  1  0.333  0.623  0.388  1.0
  F  F43  1  0.833  0.377  0.612  1.0
[/CIF]
.
The compound described by Sr3B6O11F2 crystallizes in the monoclinic P2_1 space group. There are three inequivalent Sr sites. In the first Sr site, Sr(1) is bonded in a 9-coordinate geometry to one O(2), one O(3), one O(5), one O(6), one O(7), one O(8), one O(9), one F(1), and one F(2) atom. In the second Sr site, Sr(2) is bonded in a 8-coordinate geometry to one O(1), one O(10), one O(2), one O(3), one O(4), one O(5), and two equivalent F(2) atoms. In the third Sr site, Sr(3) is bonded in a 6-coordinate geometry to one O(10), one O(11), one O(4), one O(8), and two equivalent F(1) atoms. There are six inequivalent B sites. In the first B site, B(1) is bonded to one O(10), one O(7), one O(8), and one O(9) atom to form corner-sharing BO4 tetrahedra. In the second B site, B(2) is bonded to one O(11), one O(6), one O(8), and one O(9) atom to form corner-sharing BO4 tetrahedra. In the third B site, B(3) is bonded to one O(2), one O(4), one O(5), and one O(7) atom to form corner-sharing BO4 tetrahedra. In the fourth B site, B(4) is bonded to one O(1), one O(11), one O(3), and one O(4) atom to form corner-sharing BO4 tetrahedra. In the fifth B site, B(5) is bonded in a trigonal planar geometry to one O(2), one O(3), and one O(5) atom. In the sixth B site, B(6) is bonded in a trigonal planar geometry to one O(1), one O(10), and one O(6) atom. There are eleven inequivalent O sites. In the first O site, O(1) is bonded in a bent 120 degrees geometry to one Sr(2), one B(4), and one B(6) atom. In the second O site, O(2) is bonded in a distorted bent 120 degrees geometry to one Sr(1), one Sr(2), one B(3), and one B(5) atom. In the third O site, O(3) is bonded in a distorted bent 120 degrees geometry to one Sr(1), one Sr(2), one B(4), and one B(5) atom. In the fourth O site, O(4) is bonded in a distorted bent 120 degrees geometry to one Sr(2), one Sr(3), one B(3), and one B(4) atom. In the fifth O site, O(5) is bonded in a bent 120 degrees geometry to one Sr(1), one Sr(2), one B(3), and one B(5) atom. In the sixth O site, O(6) is bonded in a distorted bent 120 degrees geometry to one Sr(1), one B(2), and one B(6) atom. In the seventh O site, O(7) is bonded in a distorted bent 120 degrees geometry to one Sr(1), one B(1), and one B(3) atom. In the eighth O site, O(8) is bonded in a distorted bent 120 degrees geometry to one Sr(1), one Sr(3), one B(1), and one B(2) atom. In the ninth O site, O(9) is bonded in a 2-coordinate geometry to one Sr(1), one B(1), and one B(2) atom. In the tenth O site, O(10) is bonded in a distorted bent 120 degrees geometry to one Sr(2), one Sr(3), one B(1), and one B(6) atom. In the eleventh O site, O(11) is bonded in a distorted bent 120 degrees geometry to one Sr(3), one B(2), and one B(4) atom. There are two inequivalent F sites. In the first F site, F(1) is bonded in a trigonal planar geometry to one Sr(1) and two equivalent Sr(3) atoms. In the second F site, F(2) is bonded in a trigonal planar geometry to one Sr(1) and two equivalent Sr(2) atoms. is represented by the CIF file [CIF]
data_Sr3B6O11F2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.334
_cell_length_b   6.465
_cell_length_c   9.493
_cell_angle_alpha   78.270
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   500.815
_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
  Sr  Sr0  1  0.260  0.981  0.237  1.0
  Sr  Sr1  1  0.760  0.019  0.763  1.0
  Sr  Sr2  1  0.614  0.561  0.468  1.0
  Sr  Sr3  1  0.114  0.439  0.532  1.0
  Sr  Sr4  1  0.102  0.546  0.950  1.0
  Sr  Sr5  1  0.602  0.454  0.050  1.0
  B  B6  1  0.619  0.931  0.143  1.0
  B  B7  1  0.119  0.069  0.857  1.0
  B  B8  1  0.396  0.898  0.936  1.0
  B  B9  1  0.896  0.102  0.064  1.0
  B  B10  1  0.159  0.895  0.627  1.0
  B  B11  1  0.659  0.105  0.373  1.0
  B  B12  1  0.901  0.327  0.266  1.0
  B  B13  1  0.401  0.673  0.734  1.0
  B  B14  1  0.943  0.992  0.444  1.0
  B  B15  1  0.443  0.008  0.556  1.0
  B  B16  1  0.877  0.729  0.209  1.0
  B  B17  1  0.377  0.271  0.791  1.0
  O  O18  1  0.959  0.547  0.271  1.0
  O  O19  1  0.459  0.453  0.729  1.0
  O  O20  1  0.047  0.841  0.515  1.0
  O  O21  1  0.547  0.159  0.485  1.0
  O  O22  1  0.004  0.183  0.372  1.0
  O  O23  1  0.504  0.817  0.628  1.0
  O  O24  1  0.732  0.305  0.306  1.0
  O  O25  1  0.232  0.695  0.694  1.0
  O  O26  1  0.782  0.948  0.449  1.0
  O  O27  1  0.282  0.052  0.551  1.0
  O  O28  1  0.964  0.910  0.165  1.0
  O  O29  1  0.464  0.090  0.835  1.0
  O  O30  1  0.065  0.992  0.726  1.0
  O  O31  1  0.565  0.008  0.274  1.0
  O  O32  1  0.220  0.921  0.956  1.0
  O  O33  1  0.720  0.079  0.044  1.0
  O  O34  1  0.472  0.870  0.078  1.0
  O  O35  1  0.972  0.130  0.922  1.0
  O  O36  1  0.712  0.727  0.197  1.0
  O  O37  1  0.212  0.273  0.803  1.0
  O  O38  1  0.931  0.293  0.122  1.0
  O  O39  1  0.431  0.707  0.878  1.0
  F  F40  1  0.318  0.338  0.104  1.0
  F  F41  1  0.818  0.662  0.896  1.0
  F  F42  1  0.333  0.623  0.388  1.0
  F  F43  1  0.833  0.377  0.612  1.0
[/CIF]
.