The crystal structure described by TbGd3(PO4)4 is Zircon-derived structured and crystallizes in the monoclinic Cm space group. Tb(1) is bonded in a 8-coordinate geometry to one O(1), one O(12), one O(6), one O(8), two equivalent O(3), and two equivalent O(9) atoms. There are three inequivalent Gd sites. In the first Gd site, Gd(1) is bonded in a 8-coordinate geometry to one O(11), one O(2), one O(5), one O(7), two equivalent O(10), and two equivalent O(4) atoms. In the second Gd site, Gd(2) is bonded in a 8-coordinate geometry to one O(12), one O(2), one O(6), one O(7), two equivalent O(3), and two equivalent O(9) atoms. In the third Gd site, Gd(3) is bonded in a 8-coordinate geometry to one O(1), one O(11), one O(5), one O(8), two equivalent O(10), and two equivalent O(4) atoms. There are three inequivalent P sites. In the first P site, P(1) is bonded in a tetrahedral geometry to one O(1), one O(5), and two equivalent O(9) atoms. In the second P site, P(2) is bonded in a tetrahedral geometry to one O(2), one O(6), and two equivalent O(10) atoms. In the third P site, P(3,4) is bonded in a tetrahedral geometry to one O(11), one O(7), and two equivalent O(3) atoms. There are twelve inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to one Tb(1), one Gd(3), and one P(1) atom. In the second O site, O(2) is bonded in a 3-coordinate geometry to one Gd(1), one Gd(2), and one P(2) atom. In the third O site, O(3) is bonded in a 3-coordinate geometry to one Tb(1); one Gd(2); and one P(3,4) atom. In the fourth O site, O(4) is bonded in a 3-coordinate geometry to one Gd(1); one Gd(3); and one P(3,4) atom. In the fifth O site, O(5) is bonded in a 3-coordinate geometry to one Gd(1), one Gd(3), and one P(1) atom. In the sixth O site, O(6) is bonded in a 3-coordinate geometry to one Tb(1), one Gd(2), and one P(2) atom. In the seventh O site, O(7) is bonded in a 3-coordinate geometry to one Gd(1); one Gd(2); and one P(3,4) atom. In the eighth O site, O(8) is bonded in a 3-coordinate geometry to one Tb(1); one Gd(3); and one P(3,4) atom. In the ninth O site, O(9) is bonded in a 3-coordinate geometry to one Tb(1), one Gd(2), and one P(1) atom. In the tenth O site, O(10) is bonded in a 3-coordinate geometry to one Gd(1), one Gd(3), and one P(2) atom. In the eleventh O site, O(11) is bonded in a 3-coordinate geometry to one Gd(1); one Gd(3); and one P(3,4) atom. In the twelfth O site, O(12) is bonded in a 3-coordinate geometry to one Tb(1); one Gd(2); and one P(3,4) atom. is represented by the CIF file [CIF]
data_TbGd3(PO4)4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.841
_cell_length_b   5.841
_cell_length_c   9.329
_cell_angle_alpha   83.768
_cell_angle_beta   83.768
_cell_angle_gamma   74.007
_symmetry_Int_Tables_number   1
_cell_volume   303.154
_cell_formula_units_Z   1
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  0.312  0.312  0.937  1.0
  Gd  Gd1  1  0.813  0.813  0.438  1.0
  Gd  Gd2  1  0.687  0.687  0.062  1.0
  Gd  Gd3  1  0.188  0.188  0.563  1.0
  P  P4  1  0.938  0.938  0.813  1.0
  P  P5  1  0.437  0.437  0.312  1.0
  P  P6  1  0.063  0.063  0.187  1.0
  P  P7  1  0.562  0.562  0.688  1.0
  O  O8  1  0.103  0.103  0.822  1.0
  O  O9  1  0.602  0.602  0.320  1.0
  O  O10  1  0.969  0.315  0.108  1.0
  O  O11  1  0.468  0.814  0.609  1.0
  O  O12  1  0.315  0.969  0.108  1.0
  O  O13  1  0.814  0.468  0.609  1.0
  O  O14  1  0.930  0.930  0.648  1.0
  O  O15  1  0.429  0.429  0.146  1.0
  O  O16  1  0.898  0.898  0.179  1.0
  O  O17  1  0.396  0.396  0.681  1.0
  O  O18  1  0.033  0.685  0.891  1.0
  O  O19  1  0.532  0.186  0.391  1.0
  O  O20  1  0.685  0.033  0.891  1.0
  O  O21  1  0.186  0.532  0.391  1.0
  O  O22  1  0.071  0.071  0.352  1.0
  O  O23  1  0.569  0.569  0.854  1.0
[/CIF]
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The crystal structure described by TbGd3(PO4)4 is Zircon-derived structured and crystallizes in the monoclinic Cm space group. Tb(1) is bonded in a 8-coordinate geometry to one O(1), one O(12), one O(6), one O(8), two equivalent O(3), and two equivalent O(9) atoms. There are three inequivalent Gd sites. In the first Gd site, Gd(1) is bonded in a 8-coordinate geometry to one O(11), one O(2), one O(5), one O(7), two equivalent O(10), and two equivalent O(4) atoms. In the second Gd site, Gd(2) is bonded in a 8-coordinate geometry to one O(12), one O(2), one O(6), one O(7), two equivalent O(3), and two equivalent O(9) atoms. In the third Gd site, Gd(3) is bonded in a 8-coordinate geometry to one O(1), one O(11), one O(5), one O(8), two equivalent O(10), and two equivalent O(4) atoms. There are three inequivalent P sites. In the first P site, P(1) is bonded in a tetrahedral geometry to one O(1), one O(5), and two equivalent O(9) atoms. In the second P site, P(2) is bonded in a tetrahedral geometry to one O(2), one O(6), and two equivalent O(10) atoms. In the third P site, P(3,4) is bonded in a tetrahedral geometry to one O(11), one O(7), and two equivalent O(3) atoms. There are twelve inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to one Tb(1), one Gd(3), and one P(1) atom. In the second O site, O(2) is bonded in a 3-coordinate geometry to one Gd(1), one Gd(2), and one P(2) atom. In the third O site, O(3) is bonded in a 3-coordinate geometry to one Tb(1); one Gd(2); and one P(3,4) atom. In the fourth O site, O(4) is bonded in a 3-coordinate geometry to one Gd(1); one Gd(3); and one P(3,4) atom. In the fifth O site, O(5) is bonded in a 3-coordinate geometry to one Gd(1), one Gd(3), and one P(1) atom. In the sixth O site, O(6) is bonded in a 3-coordinate geometry to one Tb(1), one Gd(2), and one P(2) atom. In the seventh O site, O(7) is bonded in a 3-coordinate geometry to one Gd(1); one Gd(2); and one P(3,4) atom. In the eighth O site, O(8) is bonded in a 3-coordinate geometry to one Tb(1); one Gd(3); and one P(3,4) atom. In the ninth O site, O(9) is bonded in a 3-coordinate geometry to one Tb(1), one Gd(2), and one P(1) atom. In the tenth O site, O(10) is bonded in a 3-coordinate geometry to one Gd(1), one Gd(3), and one P(2) atom. In the eleventh O site, O(11) is bonded in a 3-coordinate geometry to one Gd(1); one Gd(3); and one P(3,4) atom. In the twelfth O site, O(12) is bonded in a 3-coordinate geometry to one Tb(1); one Gd(2); and one P(3,4) atom. is represented by the CIF file [CIF]
data_TbGd3(PO4)4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.841
_cell_length_b   5.841
_cell_length_c   9.329
_cell_angle_alpha   83.768
_cell_angle_beta   83.768
_cell_angle_gamma   74.007
_symmetry_Int_Tables_number   1
_cell_volume   303.154
_cell_formula_units_Z   1
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  0.312  0.312  0.937  1.0
  Gd  Gd1  1  0.813  0.813  0.438  1.0
  Gd  Gd2  1  0.687  0.687  0.062  1.0
  Gd  Gd3  1  0.188  0.188  0.563  1.0
  P  P4  1  0.938  0.938  0.813  1.0
  P  P5  1  0.437  0.437  0.312  1.0
  P  P6  1  0.063  0.063  0.187  1.0
  P  P7  1  0.562  0.562  0.688  1.0
  O  O8  1  0.103  0.103  0.822  1.0
  O  O9  1  0.602  0.602  0.320  1.0
  O  O10  1  0.969  0.315  0.108  1.0
  O  O11  1  0.468  0.814  0.609  1.0
  O  O12  1  0.315  0.969  0.108  1.0
  O  O13  1  0.814  0.468  0.609  1.0
  O  O14  1  0.930  0.930  0.648  1.0
  O  O15  1  0.429  0.429  0.146  1.0
  O  O16  1  0.898  0.898  0.179  1.0
  O  O17  1  0.396  0.396  0.681  1.0
  O  O18  1  0.033  0.685  0.891  1.0
  O  O19  1  0.532  0.186  0.391  1.0
  O  O20  1  0.685  0.033  0.891  1.0
  O  O21  1  0.186  0.532  0.391  1.0
  O  O22  1  0.071  0.071  0.352  1.0
  O  O23  1  0.569  0.569  0.854  1.0
[/CIF]
.