The material described by Yb2Mn(GeO3)4 crystallizes in the orthorhombic Cmme space group. There are two inequivalent Yb sites. In the first Yb site, Yb(1) is bonded to two equivalent O(4) and four equivalent O(2) atoms to form YbO6 octahedra that share corners with eight equivalent Ge(1)O4 tetrahedra. In the second Yb site, Yb(2) is bonded in a 8-coordinate geometry to four equivalent O(1) and four equivalent O(2) atoms. Mn(1) is bonded to two equivalent O(3) and four equivalent O(1) atoms to form MnO6 octahedra that share corners with eight equivalent Ge(1)O4 tetrahedra. Ge(1) is bonded to one O(1), one O(2), one O(3), and one O(4) atom to form GeO4 tetrahedra that share corners with two equivalent Yb(1)O6 octahedra, corners with two equivalent Mn(1)O6 octahedra, and corners with two equivalent Ge(1)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 45-70°. There are four inequivalent O sites. In the first O site, O(3) is bonded in a trigonal non-coplanar geometry to one Mn(1) and two equivalent Ge(1) atoms. In the second O site, O(4) is bonded in a trigonal non-coplanar geometry to one Yb(1) and two equivalent Ge(1) atoms. In the third O site, O(1) is bonded in a distorted trigonal planar geometry to one Yb(2), one Mn(1), and one Ge(1) atom. In the fourth O site, O(2) is bonded in a distorted trigonal planar geometry to one Yb(1), one Yb(2), and one Ge(1) atom. is represented by the CIF card [CIF]
data_Yb2Mn(GeO3)4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.899
_cell_length_b   9.967
_cell_length_c   9.967
_cell_angle_alpha   91.124
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   486.532
_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
  Yb  Yb0  1  0.500  0.000  0.500  1.0
  Yb  Yb1  1  0.500  0.500  0.000  1.0
  Yb  Yb2  1  0.500  0.750  0.750  1.0
  Yb  Yb3  1  0.500  0.250  0.250  1.0
  Mn  Mn4  1  0.500  0.500  0.500  1.0
  Mn  Mn5  1  0.500  0.000  0.000  1.0
  Ge  Ge6  1  0.988  0.747  0.476  1.0
  Ge  Ge7  1  0.012  0.253  0.524  1.0
  Ge  Ge8  1  0.012  0.247  0.976  1.0
  Ge  Ge9  1  0.988  0.753  0.024  1.0
  Ge  Ge10  1  0.012  0.476  0.747  1.0
  Ge  Ge11  1  0.988  0.524  0.253  1.0
  Ge  Ge12  1  0.988  0.976  0.247  1.0
  Ge  Ge13  1  0.012  0.024  0.753  1.0
  O  O14  1  0.280  0.551  0.657  1.0
  O  O15  1  0.233  0.073  0.329  1.0
  O  O16  1  0.233  0.427  0.171  1.0
  O  O17  1  0.280  0.949  0.843  1.0
  O  O18  1  0.720  0.449  0.343  1.0
  O  O19  1  0.767  0.927  0.671  1.0
  O  O20  1  0.767  0.573  0.829  1.0
  O  O21  1  0.720  0.051  0.157  1.0
  O  O22  1  0.720  0.657  0.551  1.0
  O  O23  1  0.767  0.329  0.073  1.0
  O  O24  1  0.767  0.171  0.427  1.0
  O  O25  1  0.720  0.843  0.949  1.0
  O  O26  1  0.280  0.343  0.449  1.0
  O  O27  1  0.233  0.671  0.927  1.0
  O  O28  1  0.233  0.829  0.573  1.0
  O  O29  1  0.280  0.157  0.051  1.0
  O  O30  1  0.823  0.370  0.630  1.0
  O  O31  1  0.822  0.869  0.369  1.0
  O  O32  1  0.822  0.631  0.131  1.0
  O  O33  1  0.823  0.130  0.870  1.0
  O  O34  1  0.177  0.630  0.370  1.0
  O  O35  1  0.178  0.131  0.631  1.0
  O  O36  1  0.178  0.369  0.869  1.0
  O  O37  1  0.177  0.870  0.130  1.0
[/CIF]
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The material described by Yb2Mn(GeO3)4 crystallizes in the orthorhombic Cmme space group. There are two inequivalent Yb sites. In the first Yb site, Yb(1) is bonded to two equivalent O(4) and four equivalent O(2) atoms to form YbO6 octahedra that share corners with eight equivalent Ge(1)O4 tetrahedra. In the second Yb site, Yb(2) is bonded in a 8-coordinate geometry to four equivalent O(1) and four equivalent O(2) atoms. Mn(1) is bonded to two equivalent O(3) and four equivalent O(1) atoms to form MnO6 octahedra that share corners with eight equivalent Ge(1)O4 tetrahedra. Ge(1) is bonded to one O(1), one O(2), one O(3), and one O(4) atom to form GeO4 tetrahedra that share corners with two equivalent Yb(1)O6 octahedra, corners with two equivalent Mn(1)O6 octahedra, and corners with two equivalent Ge(1)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 45-70°. There are four inequivalent O sites. In the first O site, O(3) is bonded in a trigonal non-coplanar geometry to one Mn(1) and two equivalent Ge(1) atoms. In the second O site, O(4) is bonded in a trigonal non-coplanar geometry to one Yb(1) and two equivalent Ge(1) atoms. In the third O site, O(1) is bonded in a distorted trigonal planar geometry to one Yb(2), one Mn(1), and one Ge(1) atom. In the fourth O site, O(2) is bonded in a distorted trigonal planar geometry to one Yb(1), one Yb(2), and one Ge(1) atom. is represented by the CIF card [CIF]
data_Yb2Mn(GeO3)4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.899
_cell_length_b   9.967
_cell_length_c   9.967
_cell_angle_alpha   91.124
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   486.532
_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
  Yb  Yb0  1  0.500  0.000  0.500  1.0
  Yb  Yb1  1  0.500  0.500  0.000  1.0
  Yb  Yb2  1  0.500  0.750  0.750  1.0
  Yb  Yb3  1  0.500  0.250  0.250  1.0
  Mn  Mn4  1  0.500  0.500  0.500  1.0
  Mn  Mn5  1  0.500  0.000  0.000  1.0
  Ge  Ge6  1  0.988  0.747  0.476  1.0
  Ge  Ge7  1  0.012  0.253  0.524  1.0
  Ge  Ge8  1  0.012  0.247  0.976  1.0
  Ge  Ge9  1  0.988  0.753  0.024  1.0
  Ge  Ge10  1  0.012  0.476  0.747  1.0
  Ge  Ge11  1  0.988  0.524  0.253  1.0
  Ge  Ge12  1  0.988  0.976  0.247  1.0
  Ge  Ge13  1  0.012  0.024  0.753  1.0
  O  O14  1  0.280  0.551  0.657  1.0
  O  O15  1  0.233  0.073  0.329  1.0
  O  O16  1  0.233  0.427  0.171  1.0
  O  O17  1  0.280  0.949  0.843  1.0
  O  O18  1  0.720  0.449  0.343  1.0
  O  O19  1  0.767  0.927  0.671  1.0
  O  O20  1  0.767  0.573  0.829  1.0
  O  O21  1  0.720  0.051  0.157  1.0
  O  O22  1  0.720  0.657  0.551  1.0
  O  O23  1  0.767  0.329  0.073  1.0
  O  O24  1  0.767  0.171  0.427  1.0
  O  O25  1  0.720  0.843  0.949  1.0
  O  O26  1  0.280  0.343  0.449  1.0
  O  O27  1  0.233  0.671  0.927  1.0
  O  O28  1  0.233  0.829  0.573  1.0
  O  O29  1  0.280  0.157  0.051  1.0
  O  O30  1  0.823  0.370  0.630  1.0
  O  O31  1  0.822  0.869  0.369  1.0
  O  O32  1  0.822  0.631  0.131  1.0
  O  O33  1  0.823  0.130  0.870  1.0
  O  O34  1  0.177  0.630  0.370  1.0
  O  O35  1  0.178  0.131  0.631  1.0
  O  O36  1  0.178  0.369  0.869  1.0
  O  O37  1  0.177  0.870  0.130  1.0
[/CIF]
.