The structure described by Sm3GeO8 crystallizes in the monoclinic P2_1/m space group. There are two inequivalent Sm sites. In the first Sm site, Sm(1) is bonded in a 8-coordinate geometry to one O(1), one O(5), two equivalent O(2), two equivalent O(3), and two equivalent O(4) atoms. In the second Sm site, Sm(2) is bonded in a 7-coordinate geometry to one O(5), two equivalent O(2), two equivalent O(3), and two equivalent O(4) atoms. Ge(1) is bonded in a distorted trigonal bipyramidal geometry to one O(1), two equivalent O(3), and two equivalent O(4) atoms. There are five inequivalent O sites. In the first O site, O(1) is bonded in a 2-coordinate geometry to one Sm(1) and one Ge(1) atom. In the second O site, O(2) is bonded in a trigonal non-coplanar geometry to one Sm(1) and two equivalent Sm(2) atoms. In the third O site, O(3) is bonded to one Sm(1), two equivalent Sm(2), and one Ge(1) atom to form a mixture of edge and corner-sharing OSm3Ge tetrahedra. In the fourth O site, O(4) is bonded to one Sm(1), two equivalent Sm(2), and one Ge(1) atom to form a mixture of distorted edge and corner-sharing OSm3Ge tetrahedra. In the fifth O site, O(5) is bonded in a trigonal non-coplanar geometry to one Sm(1) and two equivalent Sm(2) atoms. is represented by the CIF card [CIF]
data_Sm3GeO8
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   10.486
_cell_length_b   5.464
_cell_length_c   6.309
_cell_angle_alpha   74.250
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   347.891
_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
  Sm  Sm0  1  0.750  0.789  0.675  1.0
  Sm  Sm1  1  0.250  0.211  0.325  1.0
  Sm  Sm2  1  0.951  0.685  0.201  1.0
  Sm  Sm3  1  0.451  0.315  0.799  1.0
  Sm  Sm4  1  0.049  0.315  0.799  1.0
  Sm  Sm5  1  0.549  0.685  0.201  1.0
  Ge  Ge6  1  0.750  0.192  0.000  1.0
  Ge  Ge7  1  0.250  0.808  1.000  1.0
  O  O8  1  0.750  0.004  0.287  1.0
  O  O9  1  0.250  0.996  0.713  1.0
  O  O10  1  0.531  0.704  0.564  1.0
  O  O11  1  0.031  0.296  0.436  1.0
  O  O12  1  0.469  0.296  0.436  1.0
  O  O13  1  0.969  0.704  0.564  1.0
  O  O14  1  0.374  0.984  0.118  1.0
  O  O15  1  0.874  0.016  0.882  1.0
  O  O16  1  0.626  0.016  0.882  1.0
  O  O17  1  0.126  0.984  0.118  1.0
  O  O18  1  0.368  0.544  0.041  1.0
  O  O19  1  0.868  0.456  0.959  1.0
  O  O20  1  0.632  0.456  0.959  1.0
  O  O21  1  0.132  0.544  0.041  1.0
  O  O22  1  0.750  0.571  0.392  1.0
  O  O23  1  0.250  0.429  0.608  1.0
[/CIF]
.
The structure described by Sm3GeO8 crystallizes in the monoclinic P2_1/m space group. There are two inequivalent Sm sites. In the first Sm site, Sm(1) is bonded in a 8-coordinate geometry to one O(1), one O(5), two equivalent O(2), two equivalent O(3), and two equivalent O(4) atoms. In the second Sm site, Sm(2) is bonded in a 7-coordinate geometry to one O(5), two equivalent O(2), two equivalent O(3), and two equivalent O(4) atoms. Ge(1) is bonded in a distorted trigonal bipyramidal geometry to one O(1), two equivalent O(3), and two equivalent O(4) atoms. There are five inequivalent O sites. In the first O site, O(1) is bonded in a 2-coordinate geometry to one Sm(1) and one Ge(1) atom. In the second O site, O(2) is bonded in a trigonal non-coplanar geometry to one Sm(1) and two equivalent Sm(2) atoms. In the third O site, O(3) is bonded to one Sm(1), two equivalent Sm(2), and one Ge(1) atom to form a mixture of edge and corner-sharing OSm3Ge tetrahedra. In the fourth O site, O(4) is bonded to one Sm(1), two equivalent Sm(2), and one Ge(1) atom to form a mixture of distorted edge and corner-sharing OSm3Ge tetrahedra. In the fifth O site, O(5) is bonded in a trigonal non-coplanar geometry to one Sm(1) and two equivalent Sm(2) atoms. is represented by the CIF card [CIF]
data_Sm3GeO8
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   10.486
_cell_length_b   5.464
_cell_length_c   6.309
_cell_angle_alpha   74.250
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   347.891
_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
  Sm  Sm0  1  0.750  0.789  0.675  1.0
  Sm  Sm1  1  0.250  0.211  0.325  1.0
  Sm  Sm2  1  0.951  0.685  0.201  1.0
  Sm  Sm3  1  0.451  0.315  0.799  1.0
  Sm  Sm4  1  0.049  0.315  0.799  1.0
  Sm  Sm5  1  0.549  0.685  0.201  1.0
  Ge  Ge6  1  0.750  0.192  0.000  1.0
  Ge  Ge7  1  0.250  0.808  1.000  1.0
  O  O8  1  0.750  0.004  0.287  1.0
  O  O9  1  0.250  0.996  0.713  1.0
  O  O10  1  0.531  0.704  0.564  1.0
  O  O11  1  0.031  0.296  0.436  1.0
  O  O12  1  0.469  0.296  0.436  1.0
  O  O13  1  0.969  0.704  0.564  1.0
  O  O14  1  0.374  0.984  0.118  1.0
  O  O15  1  0.874  0.016  0.882  1.0
  O  O16  1  0.626  0.016  0.882  1.0
  O  O17  1  0.126  0.984  0.118  1.0
  O  O18  1  0.368  0.544  0.041  1.0
  O  O19  1  0.868  0.456  0.959  1.0
  O  O20  1  0.632  0.456  0.959  1.0
  O  O21  1  0.132  0.544  0.041  1.0
  O  O22  1  0.750  0.571  0.392  1.0
  O  O23  1  0.250  0.429  0.608  1.0
[/CIF]
.