The material structure described by Tb4BO7Cl crystallizes in the monoclinic P2_1/c space group. There are four inequivalent Tb sites. In the first Tb site, Tb(1) is bonded in a 6-coordinate geometry to one O(1), one O(2), one O(3), one O(5), one O(6), one O(7), and one Cl(1) atom. In the second Tb site, Tb(2) is bonded in a 6-coordinate geometry to one O(1), one O(2), one O(3), one O(5), two equivalent O(4), and one Cl(1) atom. In the third Tb site, Tb(3) is bonded in a 8-coordinate geometry to one O(2), one O(3), one O(4), one O(5), one O(7), two equivalent O(1), and one Cl(1) atom. In the fourth Tb site, Tb(4) is bonded in a 5-coordinate geometry to one O(2), one O(3), one O(4), one O(6), one O(7), and two equivalent Cl(1) atoms. B(1) is bonded in a trigonal planar geometry to one O(5), one O(6), and one O(7) atom. There are seven inequivalent O sites. In the first O site, O(3) is bonded to one Tb(1), one Tb(2), one Tb(3), and one Tb(4) atom to form OTb4 tetrahedra that share corners with two equivalent O(1)Tb4 tetrahedra, corners with two equivalent O(2)Tb4 tetrahedra, corners with two equivalent O(4)Tb4 tetrahedra,  a cornercorner with one Cl(1)Tb5 trigonal bipyramid,  an edgeedge with one O(1)Tb4 tetrahedra,  an edgeedge with one O(2)Tb4 tetrahedra,  an edgeedge with one O(4)Tb4 tetrahedra, and edges with two equivalent Cl(1)Tb5 trigonal bipyramids. In the second O site, O(4) is bonded to one Tb(3), one Tb(4), and two equivalent Tb(2) atoms to form OTb4 tetrahedra that share corners with two equivalent O(1)Tb4 tetrahedra, corners with two equivalent O(2)Tb4 tetrahedra, corners with two equivalent O(3)Tb4 tetrahedra, corners with five equivalent Cl(1)Tb5 trigonal bipyramids,  an edgeedge with one O(1)Tb4 tetrahedra,  an edgeedge with one O(2)Tb4 tetrahedra,  an edgeedge with one O(3)Tb4 tetrahedra, and  an edgeedge with one O(4)Tb4 tetrahedra. In the third O site, O(5) is bonded in a 4-coordinate geometry to one Tb(1), one Tb(2), one Tb(3), and one B(1) atom. In the fourth O site, O(6) is bonded in a 3-coordinate geometry to one Tb(1), one Tb(4), and one B(1) atom. In the fifth O site, O(7) is bonded in a distorted single-bond geometry to one Tb(1), one Tb(3), one Tb(4), and one B(1) atom. In the sixth O site, O(1) is bonded to one Tb(1), one Tb(2), and two equivalent Tb(3) atoms to form OTb4 tetrahedra that share corners with two equivalent O(2)Tb4 tetrahedra, corners with two equivalent O(3)Tb4 tetrahedra, corners with two equivalent O(4)Tb4 tetrahedra, corners with two equivalent Cl(1)Tb5 trigonal bipyramids,  an edgeedge with one O(1)Tb4 tetrahedra,  an edgeedge with one O(2)Tb4 tetrahedra,  an edgeedge with one O(3)Tb4 tetrahedra,  an edgeedge with one O(4)Tb4 tetrahedra, and  an edgeedge with one Cl(1)Tb5 trigonal bipyramid. In the seventh O site, O(2) is bonded to one Tb(1), one Tb(2), one Tb(3), and one Tb(4) atom to form OTb4 tetrahedra that share corners with two equivalent O(1)Tb4 tetrahedra, corners with two equivalent O(3)Tb4 tetrahedra, corners with two equivalent O(4)Tb4 tetrahedra, corners with three equivalent Cl(1)Tb5 trigonal bipyramids,  an edgeedge with one O(1)Tb4 tetrahedra,  an edgeedge with one O(3)Tb4 tetrahedra,  an edgeedge with one O(4)Tb4 tetrahedra, and  an edgeedge with one Cl(1)Tb5 trigonal bipyramid. Cl(1) is bonded to one Tb(1), one Tb(2), one Tb(3), and two equivalent Tb(4) atoms to form distorted ClTb5 trigonal bipyramids that share  a cornercorner with one O(3)Tb4 tetrahedra, corners with two equivalent O(1)Tb4 tetrahedra, corners with three equivalent O(2)Tb4 tetrahedra, corners with five equivalent O(4)Tb4 tetrahedra,  an edgeedge with one O(1)Tb4 tetrahedra,  an edgeedge with one O(2)Tb4 tetrahedra, edges with two equivalent O(3)Tb4 tetrahedra, and  an edgeedge with one Cl(1)Tb5 trigonal bipyramid. is represented by the CIF card [CIF]
data_Tb4BClO7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.133
_cell_length_b   8.708
_cell_length_c   12.429
_cell_angle_alpha   59.041
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   754.854
_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
  Tb  Tb0  1  0.629  0.799  0.219  1.0
  Tb  Tb1  1  0.871  0.799  0.719  1.0
  Tb  Tb2  1  0.371  0.201  0.781  1.0
  Tb  Tb3  1  0.129  0.201  0.281  1.0
  Tb  Tb4  1  0.617  0.418  0.914  1.0
  Tb  Tb5  1  0.883  0.418  0.414  1.0
  Tb  Tb6  1  0.383  0.582  0.086  1.0
  Tb  Tb7  1  0.117  0.582  0.586  1.0
  Tb  Tb8  1  0.636  0.573  0.580  1.0
  Tb  Tb9  1  0.864  0.573  0.080  1.0
  Tb  Tb10  1  0.364  0.427  0.420  1.0
  Tb  Tb11  1  0.136  0.427  0.920  1.0
  Tb  Tb12  1  0.616  0.185  0.279  1.0
  Tb  Tb13  1  0.884  0.185  0.779  1.0
  Tb  Tb14  1  0.384  0.815  0.721  1.0
  Tb  Tb15  1  0.116  0.815  0.221  1.0
  B  B16  1  0.872  0.869  0.413  1.0
  B  B17  1  0.628  0.869  0.913  1.0
  B  B18  1  0.128  0.131  0.587  1.0
  B  B19  1  0.372  0.131  0.087  1.0
  Cl  Cl20  1  0.863  0.118  0.037  1.0
  Cl  Cl21  1  0.637  0.118  0.537  1.0
  Cl  Cl22  1  0.137  0.882  0.963  1.0
  Cl  Cl23  1  0.363  0.882  0.463  1.0
  O  O24  1  0.623  0.541  0.403  1.0
  O  O25  1  0.877  0.541  0.903  1.0
  O  O26  1  0.377  0.459  0.597  1.0
  O  O27  1  0.123  0.459  0.097  1.0
  O  O28  1  0.636  0.306  0.777  1.0
  O  O29  1  0.864  0.306  0.277  1.0
  O  O30  1  0.364  0.694  0.223  1.0
  O  O31  1  0.136  0.694  0.723  1.0
  O  O32  1  0.616  0.675  0.721  1.0
  O  O33  1  0.884  0.675  0.221  1.0
  O  O34  1  0.384  0.325  0.279  1.0
  O  O35  1  0.116  0.325  0.779  1.0
  O  O36  1  0.624  0.435  0.092  1.0
  O  O37  1  0.876  0.435  0.592  1.0
  O  O38  1  0.376  0.565  0.908  1.0
  O  O39  1  0.124  0.565  0.408  1.0
  O  O40  1  0.881  0.778  0.543  1.0
  O  O41  1  0.619  0.778  0.043  1.0
  O  O42  1  0.119  0.222  0.457  1.0
  O  O43  1  0.381  0.222  0.957  1.0
  O  O44  1  0.014  0.924  0.343  1.0
  O  O45  1  0.486  0.924  0.843  1.0
  O  O46  1  0.986  0.076  0.657  1.0
  O  O47  1  0.514  0.076  0.157  1.0
  O  O48  1  0.720  0.891  0.358  1.0
  O  O49  1  0.780  0.891  0.858  1.0
  O  O50  1  0.280  0.109  0.642  1.0
  O  O51  1  0.220  0.109  0.142  1.0
[/CIF]
.
The material structure described by Tb4BO7Cl crystallizes in the monoclinic P2_1/c space group. There are four inequivalent Tb sites. In the first Tb site, Tb(1) is bonded in a 6-coordinate geometry to one O(1), one O(2), one O(3), one O(5), one O(6), one O(7), and one Cl(1) atom. In the second Tb site, Tb(2) is bonded in a 6-coordinate geometry to one O(1), one O(2), one O(3), one O(5), two equivalent O(4), and one Cl(1) atom. In the third Tb site, Tb(3) is bonded in a 8-coordinate geometry to one O(2), one O(3), one O(4), one O(5), one O(7), two equivalent O(1), and one Cl(1) atom. In the fourth Tb site, Tb(4) is bonded in a 5-coordinate geometry to one O(2), one O(3), one O(4), one O(6), one O(7), and two equivalent Cl(1) atoms. B(1) is bonded in a trigonal planar geometry to one O(5), one O(6), and one O(7) atom. There are seven inequivalent O sites. In the first O site, O(3) is bonded to one Tb(1), one Tb(2), one Tb(3), and one Tb(4) atom to form OTb4 tetrahedra that share corners with two equivalent O(1)Tb4 tetrahedra, corners with two equivalent O(2)Tb4 tetrahedra, corners with two equivalent O(4)Tb4 tetrahedra,  a cornercorner with one Cl(1)Tb5 trigonal bipyramid,  an edgeedge with one O(1)Tb4 tetrahedra,  an edgeedge with one O(2)Tb4 tetrahedra,  an edgeedge with one O(4)Tb4 tetrahedra, and edges with two equivalent Cl(1)Tb5 trigonal bipyramids. In the second O site, O(4) is bonded to one Tb(3), one Tb(4), and two equivalent Tb(2) atoms to form OTb4 tetrahedra that share corners with two equivalent O(1)Tb4 tetrahedra, corners with two equivalent O(2)Tb4 tetrahedra, corners with two equivalent O(3)Tb4 tetrahedra, corners with five equivalent Cl(1)Tb5 trigonal bipyramids,  an edgeedge with one O(1)Tb4 tetrahedra,  an edgeedge with one O(2)Tb4 tetrahedra,  an edgeedge with one O(3)Tb4 tetrahedra, and  an edgeedge with one O(4)Tb4 tetrahedra. In the third O site, O(5) is bonded in a 4-coordinate geometry to one Tb(1), one Tb(2), one Tb(3), and one B(1) atom. In the fourth O site, O(6) is bonded in a 3-coordinate geometry to one Tb(1), one Tb(4), and one B(1) atom. In the fifth O site, O(7) is bonded in a distorted single-bond geometry to one Tb(1), one Tb(3), one Tb(4), and one B(1) atom. In the sixth O site, O(1) is bonded to one Tb(1), one Tb(2), and two equivalent Tb(3) atoms to form OTb4 tetrahedra that share corners with two equivalent O(2)Tb4 tetrahedra, corners with two equivalent O(3)Tb4 tetrahedra, corners with two equivalent O(4)Tb4 tetrahedra, corners with two equivalent Cl(1)Tb5 trigonal bipyramids,  an edgeedge with one O(1)Tb4 tetrahedra,  an edgeedge with one O(2)Tb4 tetrahedra,  an edgeedge with one O(3)Tb4 tetrahedra,  an edgeedge with one O(4)Tb4 tetrahedra, and  an edgeedge with one Cl(1)Tb5 trigonal bipyramid. In the seventh O site, O(2) is bonded to one Tb(1), one Tb(2), one Tb(3), and one Tb(4) atom to form OTb4 tetrahedra that share corners with two equivalent O(1)Tb4 tetrahedra, corners with two equivalent O(3)Tb4 tetrahedra, corners with two equivalent O(4)Tb4 tetrahedra, corners with three equivalent Cl(1)Tb5 trigonal bipyramids,  an edgeedge with one O(1)Tb4 tetrahedra,  an edgeedge with one O(3)Tb4 tetrahedra,  an edgeedge with one O(4)Tb4 tetrahedra, and  an edgeedge with one Cl(1)Tb5 trigonal bipyramid. Cl(1) is bonded to one Tb(1), one Tb(2), one Tb(3), and two equivalent Tb(4) atoms to form distorted ClTb5 trigonal bipyramids that share  a cornercorner with one O(3)Tb4 tetrahedra, corners with two equivalent O(1)Tb4 tetrahedra, corners with three equivalent O(2)Tb4 tetrahedra, corners with five equivalent O(4)Tb4 tetrahedra,  an edgeedge with one O(1)Tb4 tetrahedra,  an edgeedge with one O(2)Tb4 tetrahedra, edges with two equivalent O(3)Tb4 tetrahedra, and  an edgeedge with one Cl(1)Tb5 trigonal bipyramid. is represented by the CIF card [CIF]
data_Tb4BClO7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.133
_cell_length_b   8.708
_cell_length_c   12.429
_cell_angle_alpha   59.041
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   754.854
_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
  Tb  Tb0  1  0.629  0.799  0.219  1.0
  Tb  Tb1  1  0.871  0.799  0.719  1.0
  Tb  Tb2  1  0.371  0.201  0.781  1.0
  Tb  Tb3  1  0.129  0.201  0.281  1.0
  Tb  Tb4  1  0.617  0.418  0.914  1.0
  Tb  Tb5  1  0.883  0.418  0.414  1.0
  Tb  Tb6  1  0.383  0.582  0.086  1.0
  Tb  Tb7  1  0.117  0.582  0.586  1.0
  Tb  Tb8  1  0.636  0.573  0.580  1.0
  Tb  Tb9  1  0.864  0.573  0.080  1.0
  Tb  Tb10  1  0.364  0.427  0.420  1.0
  Tb  Tb11  1  0.136  0.427  0.920  1.0
  Tb  Tb12  1  0.616  0.185  0.279  1.0
  Tb  Tb13  1  0.884  0.185  0.779  1.0
  Tb  Tb14  1  0.384  0.815  0.721  1.0
  Tb  Tb15  1  0.116  0.815  0.221  1.0
  B  B16  1  0.872  0.869  0.413  1.0
  B  B17  1  0.628  0.869  0.913  1.0
  B  B18  1  0.128  0.131  0.587  1.0
  B  B19  1  0.372  0.131  0.087  1.0
  Cl  Cl20  1  0.863  0.118  0.037  1.0
  Cl  Cl21  1  0.637  0.118  0.537  1.0
  Cl  Cl22  1  0.137  0.882  0.963  1.0
  Cl  Cl23  1  0.363  0.882  0.463  1.0
  O  O24  1  0.623  0.541  0.403  1.0
  O  O25  1  0.877  0.541  0.903  1.0
  O  O26  1  0.377  0.459  0.597  1.0
  O  O27  1  0.123  0.459  0.097  1.0
  O  O28  1  0.636  0.306  0.777  1.0
  O  O29  1  0.864  0.306  0.277  1.0
  O  O30  1  0.364  0.694  0.223  1.0
  O  O31  1  0.136  0.694  0.723  1.0
  O  O32  1  0.616  0.675  0.721  1.0
  O  O33  1  0.884  0.675  0.221  1.0
  O  O34  1  0.384  0.325  0.279  1.0
  O  O35  1  0.116  0.325  0.779  1.0
  O  O36  1  0.624  0.435  0.092  1.0
  O  O37  1  0.876  0.435  0.592  1.0
  O  O38  1  0.376  0.565  0.908  1.0
  O  O39  1  0.124  0.565  0.408  1.0
  O  O40  1  0.881  0.778  0.543  1.0
  O  O41  1  0.619  0.778  0.043  1.0
  O  O42  1  0.119  0.222  0.457  1.0
  O  O43  1  0.381  0.222  0.957  1.0
  O  O44  1  0.014  0.924  0.343  1.0
  O  O45  1  0.486  0.924  0.843  1.0
  O  O46  1  0.986  0.076  0.657  1.0
  O  O47  1  0.514  0.076  0.157  1.0
  O  O48  1  0.720  0.891  0.358  1.0
  O  O49  1  0.780  0.891  0.858  1.0
  O  O50  1  0.280  0.109  0.642  1.0
  O  O51  1  0.220  0.109  0.142  1.0
[/CIF]
.