The compound described by Co3B7O13F crystallizes in the trigonal R3c space group. Co(1) is bonded to one O(2), one O(3), one O(4), one O(5), and one F(1) atom to form CoO4F trigonal bipyramids that share corners with three equivalent B(2)O4 tetrahedra, corners with four equivalent B(1)O4 tetrahedra, and corners with two equivalent Co(1)O4F trigonal bipyramids. There are three inequivalent B sites. In the first B site, B(1) is bonded to one O(2), one O(3), one O(4), and one O(5) atom to form BO4 tetrahedra that share corners with three equivalent B(2)O4 tetrahedra and corners with four equivalent Co(1)O4F trigonal bipyramids. In the second B site, B(2) is bonded to one O(1), one O(3), one O(4), and one O(5) atom to form BO4 tetrahedra that share corners with two equivalent B(2)O4 tetrahedra, corners with three equivalent B(1)O4 tetrahedra, and corners with three equivalent Co(1)O4F trigonal bipyramids. In the third B site, B(3) is bonded in a trigonal planar geometry to three equivalent O(2) atoms. There are five inequivalent O sites. In the first O site, O(3) is bonded in a distorted trigonal planar geometry to one Co(1), one B(1), and one B(2) atom. In the second O site, O(4) is bonded in a distorted trigonal planar geometry to one Co(1), one B(1), and one B(2) atom. In the third O site, O(5) is bonded in a distorted trigonal planar geometry to one Co(1), one B(1), and one B(2) atom. In the fourth O site, O(2) is bonded in a distorted trigonal planar geometry to one Co(1), one B(1), and one B(3) atom. In the fifth O site, O(1) is bonded in a trigonal non-coplanar geometry to three equivalent B(2) atoms. F(1) is bonded in a trigonal non-coplanar geometry to three equivalent Co(1) atoms. is represented by the CIF file [CIF]
data_Co3B7O13F
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.634
_cell_length_b   8.634
_cell_length_c   8.634
_cell_angle_alpha   59.478
_cell_angle_beta   59.478
_cell_angle_gamma   59.478
_symmetry_Int_Tables_number   1
_cell_volume   449.768
_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
  Co  Co0  1  0.967  0.966  0.546  1.0
  Co  Co1  1  0.546  0.967  0.966  1.0
  Co  Co2  1  0.966  0.546  0.967  1.0
  Co  Co3  1  0.046  0.466  0.467  1.0
  Co  Co4  1  0.467  0.046  0.466  1.0
  Co  Co5  1  0.466  0.467  0.046  1.0
  B  B6  1  0.750  0.257  0.751  1.0
  B  B7  1  0.751  0.750  0.257  1.0
  B  B8  1  0.257  0.751  0.750  1.0
  B  B9  1  0.251  0.757  0.250  1.0
  B  B10  1  0.250  0.251  0.757  1.0
  B  B11  1  0.757  0.250  0.251  1.0
  B  B12  1  0.577  0.269  0.577  1.0
  B  B13  1  0.577  0.577  0.269  1.0
  B  B14  1  0.269  0.577  0.577  1.0
  B  B15  1  0.077  0.769  0.077  1.0
  B  B16  1  0.077  0.077  0.769  1.0
  B  B17  1  0.769  0.077  0.077  1.0
  B  B18  1  0.606  0.606  0.606  1.0
  B  B19  1  0.106  0.106  0.106  1.0
  O  O20  1  0.492  0.492  0.492  1.0
  O  O21  1  0.992  0.992  0.992  1.0
  O  O22  1  0.448  0.770  0.607  1.0
  O  O23  1  0.607  0.448  0.770  1.0
  O  O24  1  0.770  0.607  0.448  1.0
  O  O25  1  0.107  0.270  0.948  1.0
  O  O26  1  0.948  0.107  0.270  1.0
  O  O27  1  0.270  0.948  0.107  1.0
  O  O28  1  0.758  0.439  0.202  1.0
  O  O29  1  0.202  0.758  0.439  1.0
  O  O30  1  0.439  0.202  0.758  1.0
  O  O31  1  0.702  0.939  0.258  1.0
  O  O32  1  0.258  0.702  0.939  1.0
  O  O33  1  0.939  0.258  0.702  1.0
  O  O34  1  0.615  0.192  0.439  1.0
  O  O35  1  0.439  0.615  0.192  1.0
  O  O36  1  0.192  0.439  0.615  1.0
  O  O37  1  0.939  0.692  0.115  1.0
  O  O38  1  0.115  0.939  0.692  1.0
  O  O39  1  0.692  0.115  0.939  1.0
  O  O40  1  0.216  0.604  0.753  1.0
  O  O41  1  0.753  0.216  0.604  1.0
  O  O42  1  0.604  0.753  0.216  1.0
  O  O43  1  0.253  0.104  0.716  1.0
  O  O44  1  0.716  0.253  0.104  1.0
  O  O45  1  0.104  0.716  0.253  1.0
  F  F46  1  0.796  0.796  0.796  1.0
  F  F47  1  0.296  0.296  0.296  1.0
[/CIF]
.
The compound described by Co3B7O13F crystallizes in the trigonal R3c space group. Co(1) is bonded to one O(2), one O(3), one O(4), one O(5), and one F(1) atom to form CoO4F trigonal bipyramids that share corners with three equivalent B(2)O4 tetrahedra, corners with four equivalent B(1)O4 tetrahedra, and corners with two equivalent Co(1)O4F trigonal bipyramids. There are three inequivalent B sites. In the first B site, B(1) is bonded to one O(2), one O(3), one O(4), and one O(5) atom to form BO4 tetrahedra that share corners with three equivalent B(2)O4 tetrahedra and corners with four equivalent Co(1)O4F trigonal bipyramids. In the second B site, B(2) is bonded to one O(1), one O(3), one O(4), and one O(5) atom to form BO4 tetrahedra that share corners with two equivalent B(2)O4 tetrahedra, corners with three equivalent B(1)O4 tetrahedra, and corners with three equivalent Co(1)O4F trigonal bipyramids. In the third B site, B(3) is bonded in a trigonal planar geometry to three equivalent O(2) atoms. There are five inequivalent O sites. In the first O site, O(3) is bonded in a distorted trigonal planar geometry to one Co(1), one B(1), and one B(2) atom. In the second O site, O(4) is bonded in a distorted trigonal planar geometry to one Co(1), one B(1), and one B(2) atom. In the third O site, O(5) is bonded in a distorted trigonal planar geometry to one Co(1), one B(1), and one B(2) atom. In the fourth O site, O(2) is bonded in a distorted trigonal planar geometry to one Co(1), one B(1), and one B(3) atom. In the fifth O site, O(1) is bonded in a trigonal non-coplanar geometry to three equivalent B(2) atoms. F(1) is bonded in a trigonal non-coplanar geometry to three equivalent Co(1) atoms. is represented by the CIF file [CIF]
data_Co3B7O13F
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.634
_cell_length_b   8.634
_cell_length_c   8.634
_cell_angle_alpha   59.478
_cell_angle_beta   59.478
_cell_angle_gamma   59.478
_symmetry_Int_Tables_number   1
_cell_volume   449.768
_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
  Co  Co0  1  0.967  0.966  0.546  1.0
  Co  Co1  1  0.546  0.967  0.966  1.0
  Co  Co2  1  0.966  0.546  0.967  1.0
  Co  Co3  1  0.046  0.466  0.467  1.0
  Co  Co4  1  0.467  0.046  0.466  1.0
  Co  Co5  1  0.466  0.467  0.046  1.0
  B  B6  1  0.750  0.257  0.751  1.0
  B  B7  1  0.751  0.750  0.257  1.0
  B  B8  1  0.257  0.751  0.750  1.0
  B  B9  1  0.251  0.757  0.250  1.0
  B  B10  1  0.250  0.251  0.757  1.0
  B  B11  1  0.757  0.250  0.251  1.0
  B  B12  1  0.577  0.269  0.577  1.0
  B  B13  1  0.577  0.577  0.269  1.0
  B  B14  1  0.269  0.577  0.577  1.0
  B  B15  1  0.077  0.769  0.077  1.0
  B  B16  1  0.077  0.077  0.769  1.0
  B  B17  1  0.769  0.077  0.077  1.0
  B  B18  1  0.606  0.606  0.606  1.0
  B  B19  1  0.106  0.106  0.106  1.0
  O  O20  1  0.492  0.492  0.492  1.0
  O  O21  1  0.992  0.992  0.992  1.0
  O  O22  1  0.448  0.770  0.607  1.0
  O  O23  1  0.607  0.448  0.770  1.0
  O  O24  1  0.770  0.607  0.448  1.0
  O  O25  1  0.107  0.270  0.948  1.0
  O  O26  1  0.948  0.107  0.270  1.0
  O  O27  1  0.270  0.948  0.107  1.0
  O  O28  1  0.758  0.439  0.202  1.0
  O  O29  1  0.202  0.758  0.439  1.0
  O  O30  1  0.439  0.202  0.758  1.0
  O  O31  1  0.702  0.939  0.258  1.0
  O  O32  1  0.258  0.702  0.939  1.0
  O  O33  1  0.939  0.258  0.702  1.0
  O  O34  1  0.615  0.192  0.439  1.0
  O  O35  1  0.439  0.615  0.192  1.0
  O  O36  1  0.192  0.439  0.615  1.0
  O  O37  1  0.939  0.692  0.115  1.0
  O  O38  1  0.115  0.939  0.692  1.0
  O  O39  1  0.692  0.115  0.939  1.0
  O  O40  1  0.216  0.604  0.753  1.0
  O  O41  1  0.753  0.216  0.604  1.0
  O  O42  1  0.604  0.753  0.216  1.0
  O  O43  1  0.253  0.104  0.716  1.0
  O  O44  1  0.716  0.253  0.104  1.0
  O  O45  1  0.104  0.716  0.253  1.0
  F  F46  1  0.796  0.796  0.796  1.0
  F  F47  1  0.296  0.296  0.296  1.0
[/CIF]
.