The compound described by Dy5BSi2O13 crystallizes in the monoclinic Pm space group. There are eight inequivalent Dy sites. In the first Dy site, Dy(1) is bonded in a 9-coordinate geometry to one O(16), one O(17), one O(18), one O(4), one O(5), one O(6), one O(7), one O(8), and one O(9) atom. In the second Dy site, Dy(2) is bonded in a 9-coordinate geometry to one O(1), one O(10), one O(11), one O(12), one O(13), one O(14), one O(15), one O(2), and one O(3) atom. In the third Dy site, Dy(3) is bonded in a 6-coordinate geometry to one O(15), one O(19), two equivalent O(1), and two equivalent O(6) atoms. In the fourth Dy site, Dy(4) is bonded in a 6-coordinate geometry to one O(13), one O(19), two equivalent O(2), and two equivalent O(4) atoms. In the fifth Dy site, Dy(5) is bonded in a 7-coordinate geometry to one O(14), one O(19), one O(7), two equivalent O(3), and two equivalent O(5) atoms. In the sixth Dy site, Dy(6) is bonded in a 7-coordinate geometry to one O(11), one O(18), one O(20), two equivalent O(3), and two equivalent O(4) atoms. In the seventh Dy site, Dy(7) is bonded in a 7-coordinate geometry to one O(12), one O(16), one O(20), two equivalent O(1), and two equivalent O(5) atoms. In the eighth Dy site, Dy(8) is bonded in a 7-coordinate geometry to one O(10), one O(17), one O(20), two equivalent O(2), and two equivalent O(6) atoms. There are two inequivalent B sites. In the first B site, B(1) is bonded in a tetrahedral geometry to one O(13), one O(7), and two equivalent O(1) atoms. In the second B site, B(2) is bonded in a tetrahedral geometry to one O(14), one O(8), and two equivalent O(2) atoms. There are four inequivalent Si sites. In the first Si site, Si(1) is bonded in a tetrahedral geometry to one O(15), one O(9), and two equivalent O(3) atoms. In the second Si site, Si(2) is bonded in a tetrahedral geometry to one O(10), one O(16), and two equivalent O(4) atoms. In the third Si site, Si(3) is bonded in a tetrahedral geometry to one O(11), one O(17), and two equivalent O(5) atoms. In the fourth Si site, Si(4) is bonded in a tetrahedral geometry to one O(12), one O(18), and two equivalent O(6) atoms. There are twenty inequivalent O sites. In the first O site, O(1) is bonded in a 1-coordinate geometry to one Dy(2), one Dy(3), one Dy(7), and one B(1) atom. In the second O site, O(2) is bonded in a 4-coordinate geometry to one Dy(2), one Dy(4), one Dy(8), and one B(2) atom. In the third O site, O(3) is bonded in a 4-coordinate geometry to one Dy(2), one Dy(5), one Dy(6), and one Si(1) atom. In the fourth O site, O(4) is bonded in a 1-coordinate geometry to one Dy(1), one Dy(4), one Dy(6), and one Si(2) atom. In the fifth O site, O(5) is bonded in a 4-coordinate geometry to one Dy(1), one Dy(5), one Dy(7), and one Si(3) atom. In the sixth O site, O(6) is bonded in a 1-coordinate geometry to one Dy(1), one Dy(3), one Dy(8), and one Si(4) atom. In the seventh O site, O(7) is bonded in a 4-coordinate geometry to one Dy(5), two equivalent Dy(1), and one B(1) atom. In the eighth O site, O(8) is bonded in a 3-coordinate geometry to two equivalent Dy(1) and one B(2) atom. In the ninth O site, O(9) is bonded in a 3-coordinate geometry to two equivalent Dy(1) and one Si(1) atom. In the tenth O site, O(10) is bonded in a 4-coordinate geometry to one Dy(8), two equivalent Dy(2), and one Si(2) atom. In the eleventh O site, O(11) is bonded in a 1-coordinate geometry to one Dy(6), two equivalent Dy(2), and one Si(3) atom. In the twelfth O site, O(12) is bonded in a 4-coordinate geometry to one Dy(7), two equivalent Dy(2), and one Si(4) atom. In the thirteenth O site, O(13) is bonded in a 4-coordinate geometry to one Dy(4), two equivalent Dy(2), and one B(1) atom. In the fourteenth O site, O(14) is bonded in a 4-coordinate geometry to one Dy(5), two equivalent Dy(2), and one B(2) atom. In the fifteenth O site, O(15) is bonded in a distorted tetrahedral geometry to one Dy(3), two equivalent Dy(2), and one Si(1) atom. In the sixteenth O site, O(16) is bonded to one Dy(7), two equivalent Dy(1), and one Si(2) atom to form distorted edge-sharing ODy3Si tetrahedra. In the seventeenth O site, O(17) is bonded to one Dy(8), two equivalent Dy(1), and one Si(3) atom to form distorted edge-sharing ODy3Si tetrahedra. In the eighteenth O site, O(18) is bonded in a 4-coordinate geometry to one Dy(6), two equivalent Dy(1), and one Si(4) atom. In the nineteenth O site, O(19) is bonded in a trigonal planar geometry to one Dy(3), one Dy(4), and one Dy(5) atom. In the twentieth O site, O(20) is bonded in a trigonal planar geometry to one Dy(6), one Dy(7), and one Dy(8) atom. is represented by the CIF file [CIF]
data_Dy5Si2BO13
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.778
_cell_length_b   9.265
_cell_length_c   9.280
_cell_angle_alpha   60.369
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   506.576
_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
  Dy  Dy0  1  0.740  0.345  0.333  1.0
  Dy  Dy1  1  0.260  0.654  0.677  1.0
  Dy  Dy2  1  0.740  0.654  0.677  1.0
  Dy  Dy3  1  0.260  0.345  0.333  1.0
  Dy  Dy4  1  0.500  0.989  0.775  1.0
  Dy  Dy5  1  0.500  0.248  0.982  1.0
  Dy  Dy6  1  0.500  0.754  0.234  1.0
  Dy  Dy7  1  0.000  0.995  0.236  1.0
  Dy  Dy8  1  0.000  0.764  0.989  1.0
  Dy  Dy9  1  0.000  0.242  0.763  1.0
  Si  Si10  1  0.500  0.970  0.399  1.0
  Si  Si11  1  0.000  0.368  0.033  1.0
  Si  Si12  1  0.000  0.599  0.374  1.0
  Si  Si13  1  0.000  0.029  0.598  1.0
  B  B14  1  0.500  0.630  0.971  1.0
  B  B15  1  0.500  0.409  0.624  1.0
  O  O16  1  0.681  0.741  0.913  1.0
  O  O17  1  0.681  0.355  0.737  1.0
  O  O18  1  0.693  0.906  0.341  1.0
  O  O19  1  0.193  0.246  0.092  1.0
  O  O20  1  0.190  0.655  0.250  1.0
  O  O21  1  0.193  0.092  0.660  1.0
  O  O22  1  0.807  0.246  0.092  1.0
  O  O23  1  0.810  0.655  0.250  1.0
  O  O24  1  0.807  0.092  0.660  1.0
  O  O25  1  0.319  0.741  0.913  1.0
  O  O26  1  0.319  0.355  0.737  1.0
  O  O27  1  0.307  0.906  0.341  1.0
  O  O28  1  0.500  0.519  0.155  1.0
  O  O29  1  0.500  0.344  0.507  1.0
  O  O30  1  0.500  0.170  0.329  1.0
  O  O31  1  0.000  0.486  0.833  1.0
  O  O32  1  0.000  0.677  0.495  1.0
  O  O33  1  0.000  0.828  0.681  1.0
  O  O34  1  0.500  0.534  0.880  1.0
  O  O35  1  0.500  0.596  0.534  1.0
  O  O36  1  0.500  0.867  0.603  1.0
  O  O37  1  0.000  0.472  0.133  1.0
  O  O38  1  0.000  0.395  0.473  1.0
  O  O39  1  0.000  0.134  0.395  1.0
  O  O40  1  0.500  0.998  0.005  1.0
  O  O41  1  0.000  0.999  0.997  1.0
[/CIF]
.
The compound described by Dy5BSi2O13 crystallizes in the monoclinic Pm space group. There are eight inequivalent Dy sites. In the first Dy site, Dy(1) is bonded in a 9-coordinate geometry to one O(16), one O(17), one O(18), one O(4), one O(5), one O(6), one O(7), one O(8), and one O(9) atom. In the second Dy site, Dy(2) is bonded in a 9-coordinate geometry to one O(1), one O(10), one O(11), one O(12), one O(13), one O(14), one O(15), one O(2), and one O(3) atom. In the third Dy site, Dy(3) is bonded in a 6-coordinate geometry to one O(15), one O(19), two equivalent O(1), and two equivalent O(6) atoms. In the fourth Dy site, Dy(4) is bonded in a 6-coordinate geometry to one O(13), one O(19), two equivalent O(2), and two equivalent O(4) atoms. In the fifth Dy site, Dy(5) is bonded in a 7-coordinate geometry to one O(14), one O(19), one O(7), two equivalent O(3), and two equivalent O(5) atoms. In the sixth Dy site, Dy(6) is bonded in a 7-coordinate geometry to one O(11), one O(18), one O(20), two equivalent O(3), and two equivalent O(4) atoms. In the seventh Dy site, Dy(7) is bonded in a 7-coordinate geometry to one O(12), one O(16), one O(20), two equivalent O(1), and two equivalent O(5) atoms. In the eighth Dy site, Dy(8) is bonded in a 7-coordinate geometry to one O(10), one O(17), one O(20), two equivalent O(2), and two equivalent O(6) atoms. There are two inequivalent B sites. In the first B site, B(1) is bonded in a tetrahedral geometry to one O(13), one O(7), and two equivalent O(1) atoms. In the second B site, B(2) is bonded in a tetrahedral geometry to one O(14), one O(8), and two equivalent O(2) atoms. There are four inequivalent Si sites. In the first Si site, Si(1) is bonded in a tetrahedral geometry to one O(15), one O(9), and two equivalent O(3) atoms. In the second Si site, Si(2) is bonded in a tetrahedral geometry to one O(10), one O(16), and two equivalent O(4) atoms. In the third Si site, Si(3) is bonded in a tetrahedral geometry to one O(11), one O(17), and two equivalent O(5) atoms. In the fourth Si site, Si(4) is bonded in a tetrahedral geometry to one O(12), one O(18), and two equivalent O(6) atoms. There are twenty inequivalent O sites. In the first O site, O(1) is bonded in a 1-coordinate geometry to one Dy(2), one Dy(3), one Dy(7), and one B(1) atom. In the second O site, O(2) is bonded in a 4-coordinate geometry to one Dy(2), one Dy(4), one Dy(8), and one B(2) atom. In the third O site, O(3) is bonded in a 4-coordinate geometry to one Dy(2), one Dy(5), one Dy(6), and one Si(1) atom. In the fourth O site, O(4) is bonded in a 1-coordinate geometry to one Dy(1), one Dy(4), one Dy(6), and one Si(2) atom. In the fifth O site, O(5) is bonded in a 4-coordinate geometry to one Dy(1), one Dy(5), one Dy(7), and one Si(3) atom. In the sixth O site, O(6) is bonded in a 1-coordinate geometry to one Dy(1), one Dy(3), one Dy(8), and one Si(4) atom. In the seventh O site, O(7) is bonded in a 4-coordinate geometry to one Dy(5), two equivalent Dy(1), and one B(1) atom. In the eighth O site, O(8) is bonded in a 3-coordinate geometry to two equivalent Dy(1) and one B(2) atom. In the ninth O site, O(9) is bonded in a 3-coordinate geometry to two equivalent Dy(1) and one Si(1) atom. In the tenth O site, O(10) is bonded in a 4-coordinate geometry to one Dy(8), two equivalent Dy(2), and one Si(2) atom. In the eleventh O site, O(11) is bonded in a 1-coordinate geometry to one Dy(6), two equivalent Dy(2), and one Si(3) atom. In the twelfth O site, O(12) is bonded in a 4-coordinate geometry to one Dy(7), two equivalent Dy(2), and one Si(4) atom. In the thirteenth O site, O(13) is bonded in a 4-coordinate geometry to one Dy(4), two equivalent Dy(2), and one B(1) atom. In the fourteenth O site, O(14) is bonded in a 4-coordinate geometry to one Dy(5), two equivalent Dy(2), and one B(2) atom. In the fifteenth O site, O(15) is bonded in a distorted tetrahedral geometry to one Dy(3), two equivalent Dy(2), and one Si(1) atom. In the sixteenth O site, O(16) is bonded to one Dy(7), two equivalent Dy(1), and one Si(2) atom to form distorted edge-sharing ODy3Si tetrahedra. In the seventeenth O site, O(17) is bonded to one Dy(8), two equivalent Dy(1), and one Si(3) atom to form distorted edge-sharing ODy3Si tetrahedra. In the eighteenth O site, O(18) is bonded in a 4-coordinate geometry to one Dy(6), two equivalent Dy(1), and one Si(4) atom. In the nineteenth O site, O(19) is bonded in a trigonal planar geometry to one Dy(3), one Dy(4), and one Dy(5) atom. In the twentieth O site, O(20) is bonded in a trigonal planar geometry to one Dy(6), one Dy(7), and one Dy(8) atom. is represented by the CIF file [CIF]
data_Dy5Si2BO13
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.778
_cell_length_b   9.265
_cell_length_c   9.280
_cell_angle_alpha   60.369
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   506.576
_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
  Dy  Dy0  1  0.740  0.345  0.333  1.0
  Dy  Dy1  1  0.260  0.654  0.677  1.0
  Dy  Dy2  1  0.740  0.654  0.677  1.0
  Dy  Dy3  1  0.260  0.345  0.333  1.0
  Dy  Dy4  1  0.500  0.989  0.775  1.0
  Dy  Dy5  1  0.500  0.248  0.982  1.0
  Dy  Dy6  1  0.500  0.754  0.234  1.0
  Dy  Dy7  1  0.000  0.995  0.236  1.0
  Dy  Dy8  1  0.000  0.764  0.989  1.0
  Dy  Dy9  1  0.000  0.242  0.763  1.0
  Si  Si10  1  0.500  0.970  0.399  1.0
  Si  Si11  1  0.000  0.368  0.033  1.0
  Si  Si12  1  0.000  0.599  0.374  1.0
  Si  Si13  1  0.000  0.029  0.598  1.0
  B  B14  1  0.500  0.630  0.971  1.0
  B  B15  1  0.500  0.409  0.624  1.0
  O  O16  1  0.681  0.741  0.913  1.0
  O  O17  1  0.681  0.355  0.737  1.0
  O  O18  1  0.693  0.906  0.341  1.0
  O  O19  1  0.193  0.246  0.092  1.0
  O  O20  1  0.190  0.655  0.250  1.0
  O  O21  1  0.193  0.092  0.660  1.0
  O  O22  1  0.807  0.246  0.092  1.0
  O  O23  1  0.810  0.655  0.250  1.0
  O  O24  1  0.807  0.092  0.660  1.0
  O  O25  1  0.319  0.741  0.913  1.0
  O  O26  1  0.319  0.355  0.737  1.0
  O  O27  1  0.307  0.906  0.341  1.0
  O  O28  1  0.500  0.519  0.155  1.0
  O  O29  1  0.500  0.344  0.507  1.0
  O  O30  1  0.500  0.170  0.329  1.0
  O  O31  1  0.000  0.486  0.833  1.0
  O  O32  1  0.000  0.677  0.495  1.0
  O  O33  1  0.000  0.828  0.681  1.0
  O  O34  1  0.500  0.534  0.880  1.0
  O  O35  1  0.500  0.596  0.534  1.0
  O  O36  1  0.500  0.867  0.603  1.0
  O  O37  1  0.000  0.472  0.133  1.0
  O  O38  1  0.000  0.395  0.473  1.0
  O  O39  1  0.000  0.134  0.395  1.0
  O  O40  1  0.500  0.998  0.005  1.0
  O  O41  1  0.000  0.999  0.997  1.0
[/CIF]
.