The compound described by Rb3AgGe4(Se5O)2 crystallizes in the triclinic P1 space group. There are three inequivalent Rb sites. In the first Rb site, Rb(1) is bonded in a distorted single-bond geometry to one Se(1), one Se(2), one Se(5), one Se(6), and one O(2) atom. In the second Rb site, Rb(2) is bonded in a 1-coordinate geometry to one Se(2), one Se(5), one O(1), and one O(2) atom. In the third Rb site, Rb(3) is bonded in a 2-coordinate geometry to one Se(1), one Se(6), one O(1), and one O(2) atom. Ag(1) is bonded to one Se(1), one Se(2), one Se(3), and one Se(4) atom to form AgSe4 tetrahedra that share  a cornercorner with one Ge(1)Se4 tetrahedra,  a cornercorner with one Ge(2)Se4 tetrahedra,  a cornercorner with one Ge(3)Se4 tetrahedra, and  a cornercorner with one Ge(4)Se4 tetrahedra. There are four inequivalent Ge sites. In the first Ge site, Ge(1) is bonded to one Se(1), one Se(5), one Se(7), and one Se(9) atom to form GeSe4 tetrahedra that share  a cornercorner with one Ag(1)Se4 tetrahedra,  a cornercorner with one Ge(2)Se4 tetrahedra,  a cornercorner with one Ge(3)Se4 tetrahedra, and  a cornercorner with one Ge(4)Se4 tetrahedra. In the second Ge site, Ge(2) is bonded to one Se(2), one Se(6), one Se(8), and one Se(9) atom to form GeSe4 tetrahedra that share  a cornercorner with one Ag(1)Se4 tetrahedra,  a cornercorner with one Ge(1)Se4 tetrahedra,  a cornercorner with one Ge(3)Se4 tetrahedra, and  a cornercorner with one Ge(4)Se4 tetrahedra. In the third Ge site, Ge(3) is bonded to one Se(10), one Se(3), one Se(6), and one Se(7) atom to form GeSe4 tetrahedra that share  a cornercorner with one Ag(1)Se4 tetrahedra,  a cornercorner with one Ge(1)Se4 tetrahedra,  a cornercorner with one Ge(2)Se4 tetrahedra, and  a cornercorner with one Ge(4)Se4 tetrahedra. In the fourth Ge site, Ge(4) is bonded to one Se(10), one Se(4), one Se(5), and one Se(8) atom to form GeSe4 tetrahedra that share  a cornercorner with one Ag(1)Se4 tetrahedra,  a cornercorner with one Ge(1)Se4 tetrahedra,  a cornercorner with one Ge(2)Se4 tetrahedra, and  a cornercorner with one Ge(3)Se4 tetrahedra. There are ten inequivalent Se sites. In the first Se site, Se(1) is bonded in a 4-coordinate geometry to one Rb(1), one Rb(3), one Ag(1), and one Ge(1) atom. In the second Se site, Se(2) is bonded in a distorted rectangular see-saw-like geometry to one Rb(1), one Rb(2), one Ag(1), and one Ge(2) atom. In the third Se site, Se(3) is bonded in a distorted water-like geometry to one Ag(1) and one Ge(3) atom. In the fourth Se site, Se(4) is bonded in a 1-coordinate geometry to one Ag(1), one Ge(4), and one O(1) atom. In the fifth Se site, Se(5) is bonded in a distorted see-saw-like geometry to one Rb(1), one Rb(2), one Ge(1), and one Ge(4) atom. In the sixth Se site, Se(6) is bonded in a distorted rectangular see-saw-like geometry to one Rb(1), one Rb(3), one Ge(2), and one Ge(3) atom. In the seventh Se site, Se(7) is bonded in a distorted water-like geometry to one Ge(1) and one Ge(3) atom. In the eighth Se site, Se(8) is bonded in a 2-coordinate geometry to one Ge(2) and one Ge(4) atom. In the ninth Se site, Se(9) is bonded in a distorted water-like geometry to one Ge(1) and one Ge(2) atom. In the tenth Se site, Se(10) is bonded in a distorted water-like geometry to one Ge(3) and one Ge(4) atom. There are two inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to one Rb(2), one Rb(3), and one Se(4) atom. In the second O site, O(2) is bonded in a trigonal planar geometry to one Rb(1), one Rb(2), and one Rb(3) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Rb3AgGe4(Se5O)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.151
_cell_length_b   9.130
_cell_length_c   10.297
_cell_angle_alpha   62.159
_cell_angle_beta   63.586
_cell_angle_gamma   88.696
_symmetry_Int_Tables_number   1
_cell_volume   662.412
_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
  Rb  Rb0  1  0.295  0.654  0.223  1.0
  Rb  Rb1  1  0.829  0.725  0.792  1.0
  Rb  Rb2  1  0.377  0.513  0.780  1.0
  Ag  Ag3  1  0.014  0.980  0.014  1.0
  Ge  Ge4  1  0.949  0.168  0.309  1.0
  Ge  Ge5  1  0.736  0.532  0.319  1.0
  Ge  Ge6  1  0.499  0.065  0.659  1.0
  Ge  Ge7  1  0.855  0.275  0.651  1.0
  Se  Se8  1  0.155  0.091  0.135  1.0
  Se  Se9  1  0.710  0.798  0.151  1.0
  Se  Se10  1  0.248  0.858  0.842  1.0
  Se  Se11  1  0.951  0.309  0.826  1.0
  Se  Se12  1  0.059  0.177  0.482  1.0
  Se  Se13  1  0.461  0.343  0.497  1.0
  Se  Se14  1  0.683  0.967  0.480  1.0
  Se  Se15  1  0.843  0.562  0.485  1.0
  Se  Se16  1  0.935  0.450  0.132  1.0
  Se  Se17  1  0.586  0.082  0.843  1.0
  O  O18  1  0.105  0.496  0.680  1.0
  O  O19  1  0.479  0.654  0.924  1.0
[/CIF]
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The compound described by Rb3AgGe4(Se5O)2 crystallizes in the triclinic P1 space group. There are three inequivalent Rb sites. In the first Rb site, Rb(1) is bonded in a distorted single-bond geometry to one Se(1), one Se(2), one Se(5), one Se(6), and one O(2) atom. In the second Rb site, Rb(2) is bonded in a 1-coordinate geometry to one Se(2), one Se(5), one O(1), and one O(2) atom. In the third Rb site, Rb(3) is bonded in a 2-coordinate geometry to one Se(1), one Se(6), one O(1), and one O(2) atom. Ag(1) is bonded to one Se(1), one Se(2), one Se(3), and one Se(4) atom to form AgSe4 tetrahedra that share  a cornercorner with one Ge(1)Se4 tetrahedra,  a cornercorner with one Ge(2)Se4 tetrahedra,  a cornercorner with one Ge(3)Se4 tetrahedra, and  a cornercorner with one Ge(4)Se4 tetrahedra. There are four inequivalent Ge sites. In the first Ge site, Ge(1) is bonded to one Se(1), one Se(5), one Se(7), and one Se(9) atom to form GeSe4 tetrahedra that share  a cornercorner with one Ag(1)Se4 tetrahedra,  a cornercorner with one Ge(2)Se4 tetrahedra,  a cornercorner with one Ge(3)Se4 tetrahedra, and  a cornercorner with one Ge(4)Se4 tetrahedra. In the second Ge site, Ge(2) is bonded to one Se(2), one Se(6), one Se(8), and one Se(9) atom to form GeSe4 tetrahedra that share  a cornercorner with one Ag(1)Se4 tetrahedra,  a cornercorner with one Ge(1)Se4 tetrahedra,  a cornercorner with one Ge(3)Se4 tetrahedra, and  a cornercorner with one Ge(4)Se4 tetrahedra. In the third Ge site, Ge(3) is bonded to one Se(10), one Se(3), one Se(6), and one Se(7) atom to form GeSe4 tetrahedra that share  a cornercorner with one Ag(1)Se4 tetrahedra,  a cornercorner with one Ge(1)Se4 tetrahedra,  a cornercorner with one Ge(2)Se4 tetrahedra, and  a cornercorner with one Ge(4)Se4 tetrahedra. In the fourth Ge site, Ge(4) is bonded to one Se(10), one Se(4), one Se(5), and one Se(8) atom to form GeSe4 tetrahedra that share  a cornercorner with one Ag(1)Se4 tetrahedra,  a cornercorner with one Ge(1)Se4 tetrahedra,  a cornercorner with one Ge(2)Se4 tetrahedra, and  a cornercorner with one Ge(3)Se4 tetrahedra. There are ten inequivalent Se sites. In the first Se site, Se(1) is bonded in a 4-coordinate geometry to one Rb(1), one Rb(3), one Ag(1), and one Ge(1) atom. In the second Se site, Se(2) is bonded in a distorted rectangular see-saw-like geometry to one Rb(1), one Rb(2), one Ag(1), and one Ge(2) atom. In the third Se site, Se(3) is bonded in a distorted water-like geometry to one Ag(1) and one Ge(3) atom. In the fourth Se site, Se(4) is bonded in a 1-coordinate geometry to one Ag(1), one Ge(4), and one O(1) atom. In the fifth Se site, Se(5) is bonded in a distorted see-saw-like geometry to one Rb(1), one Rb(2), one Ge(1), and one Ge(4) atom. In the sixth Se site, Se(6) is bonded in a distorted rectangular see-saw-like geometry to one Rb(1), one Rb(3), one Ge(2), and one Ge(3) atom. In the seventh Se site, Se(7) is bonded in a distorted water-like geometry to one Ge(1) and one Ge(3) atom. In the eighth Se site, Se(8) is bonded in a 2-coordinate geometry to one Ge(2) and one Ge(4) atom. In the ninth Se site, Se(9) is bonded in a distorted water-like geometry to one Ge(1) and one Ge(2) atom. In the tenth Se site, Se(10) is bonded in a distorted water-like geometry to one Ge(3) and one Ge(4) atom. There are two inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to one Rb(2), one Rb(3), and one Se(4) atom. In the second O site, O(2) is bonded in a trigonal planar geometry to one Rb(1), one Rb(2), and one Rb(3) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Rb3AgGe4(Se5O)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.151
_cell_length_b   9.130
_cell_length_c   10.297
_cell_angle_alpha   62.159
_cell_angle_beta   63.586
_cell_angle_gamma   88.696
_symmetry_Int_Tables_number   1
_cell_volume   662.412
_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
  Rb  Rb0  1  0.295  0.654  0.223  1.0
  Rb  Rb1  1  0.829  0.725  0.792  1.0
  Rb  Rb2  1  0.377  0.513  0.780  1.0
  Ag  Ag3  1  0.014  0.980  0.014  1.0
  Ge  Ge4  1  0.949  0.168  0.309  1.0
  Ge  Ge5  1  0.736  0.532  0.319  1.0
  Ge  Ge6  1  0.499  0.065  0.659  1.0
  Ge  Ge7  1  0.855  0.275  0.651  1.0
  Se  Se8  1  0.155  0.091  0.135  1.0
  Se  Se9  1  0.710  0.798  0.151  1.0
  Se  Se10  1  0.248  0.858  0.842  1.0
  Se  Se11  1  0.951  0.309  0.826  1.0
  Se  Se12  1  0.059  0.177  0.482  1.0
  Se  Se13  1  0.461  0.343  0.497  1.0
  Se  Se14  1  0.683  0.967  0.480  1.0
  Se  Se15  1  0.843  0.562  0.485  1.0
  Se  Se16  1  0.935  0.450  0.132  1.0
  Se  Se17  1  0.586  0.082  0.843  1.0
  O  O18  1  0.105  0.496  0.680  1.0
  O  O19  1  0.479  0.654  0.924  1.0
[/CIF]
.