The crystal structure described by Rb6Si10O23 crystallizes in the orthorhombic Amm2 space group. There are four inequivalent Rb sites. In the first Rb site, Rb(1) is bonded in a 7-coordinate geometry to one O(7), two equivalent O(2), two equivalent O(3), and two equivalent O(8) atoms. In the second Rb site, Rb(2) is bonded in a 7-coordinate geometry to one O(6), two equivalent O(1), two equivalent O(3), and two equivalent O(8) atoms. In the third Rb site, Rb(3) is bonded in a 8-coordinate geometry to four equivalent O(3) and four equivalent O(4) atoms. In the fourth Rb site, Rb(4) is bonded in a 7-coordinate geometry to one O(5), two equivalent O(6), and four equivalent O(3) atoms. There are three inequivalent Si sites. In the first Si site, Si(1) is bonded to one O(1), one O(2), one O(4), and one O(7) atom to form corner-sharing SiO4 tetrahedra. In the second Si site, Si(2) is bonded to one O(1), one O(2), one O(3), and one O(6) atom to form corner-sharing SiO4 tetrahedra. In the third Si site, Si(3) is bonded to one O(5), one O(8), and two equivalent O(4) atoms to form corner-sharing SiO4 tetrahedra. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a distorted bent 120 degrees geometry to one Rb(2), one Si(1), and one Si(2) atom. In the second O site, O(2) is bonded in a distorted bent 120 degrees geometry to one Rb(1), one Si(1), and one Si(2) atom. In the third O site, O(3) is bonded in a distorted single-bond geometry to one Rb(1), one Rb(2), one Rb(3), one Rb(4), and one Si(2) atom. In the fourth O site, O(4) is bonded in a distorted bent 150 degrees geometry to one Rb(3), one Si(1), and one Si(3) atom. In the fifth O site, O(5) is bonded in a distorted bent 150 degrees geometry to one Rb(4) and two equivalent Si(3) atoms. In the sixth O site, O(6) is bonded in a distorted bent 150 degrees geometry to one Rb(2), one Rb(4), and two equivalent Si(2) atoms. In the seventh O site, O(7) is bonded in a distorted bent 150 degrees geometry to one Rb(1) and two equivalent Si(1) atoms. In the eighth O site, O(8) is bonded in a distorted single-bond geometry to two equivalent Rb(1), two equivalent Rb(2), and one Si(3) atom. is represented by the CIF card [CIF]
data_Rb6Si10O23
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.401
_cell_length_b   9.401
_cell_length_c   8.045
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.457
_symmetry_Int_Tables_number   1
_cell_volume   612.965
_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  0.227  0.990  0.500  1.0
  Rb  Rb1  1  0.990  0.227  0.500  1.0
  Rb  Rb2  1  0.243  0.000  0.000  1.0
  Rb  Rb3  1  0.000  0.243  0.000  1.0
  Rb  Rb4  1  0.751  0.751  0.500  1.0
  Rb  Rb5  1  0.757  0.757  0.000  1.0
  Si  Si6  1  0.309  0.655  0.688  1.0
  Si  Si7  1  0.655  0.309  0.312  1.0
  Si  Si8  1  0.309  0.655  0.312  1.0
  Si  Si9  1  0.655  0.309  0.688  1.0
  Si  Si10  1  0.589  0.979  0.809  1.0
  Si  Si11  1  0.979  0.589  0.191  1.0
  Si  Si12  1  0.589  0.979  0.191  1.0
  Si  Si13  1  0.979  0.589  0.809  1.0
  Si  Si14  1  0.400  0.400  0.200  1.0
  Si  Si15  1  0.400  0.400  0.800  1.0
  O  O16  1  0.582  0.152  0.810  1.0
  O  O17  1  0.152  0.582  0.190  1.0
  O  O18  1  0.582  0.152  0.190  1.0
  O  O19  1  0.152  0.582  0.810  1.0
  O  O20  1  0.423  0.854  0.700  1.0
  O  O21  1  0.854  0.423  0.300  1.0
  O  O22  1  0.423  0.854  0.300  1.0
  O  O23  1  0.854  0.423  0.700  1.0
  O  O24  1  0.757  0.998  0.750  1.0
  O  O25  1  0.998  0.757  0.250  1.0
  O  O26  1  0.757  0.998  0.250  1.0
  O  O27  1  0.998  0.757  0.750  1.0
  O  O28  1  0.421  0.575  0.730  1.0
  O  O29  1  0.575  0.421  0.270  1.0
  O  O30  1  0.421  0.575  0.270  1.0
  O  O31  1  0.575  0.421  0.730  1.0
  O  O32  1  0.429  0.429  0.000  1.0
  O  O33  1  0.909  0.536  0.000  1.0
  O  O34  1  0.536  0.909  0.000  1.0
  O  O35  1  0.608  0.237  0.500  1.0
  O  O36  1  0.237  0.608  0.500  1.0
  O  O37  1  0.237  0.237  0.750  1.0
  O  O38  1  0.237  0.237  0.250  1.0
[/CIF]
.
The crystal structure described by Rb6Si10O23 crystallizes in the orthorhombic Amm2 space group. There are four inequivalent Rb sites. In the first Rb site, Rb(1) is bonded in a 7-coordinate geometry to one O(7), two equivalent O(2), two equivalent O(3), and two equivalent O(8) atoms. In the second Rb site, Rb(2) is bonded in a 7-coordinate geometry to one O(6), two equivalent O(1), two equivalent O(3), and two equivalent O(8) atoms. In the third Rb site, Rb(3) is bonded in a 8-coordinate geometry to four equivalent O(3) and four equivalent O(4) atoms. In the fourth Rb site, Rb(4) is bonded in a 7-coordinate geometry to one O(5), two equivalent O(6), and four equivalent O(3) atoms. There are three inequivalent Si sites. In the first Si site, Si(1) is bonded to one O(1), one O(2), one O(4), and one O(7) atom to form corner-sharing SiO4 tetrahedra. In the second Si site, Si(2) is bonded to one O(1), one O(2), one O(3), and one O(6) atom to form corner-sharing SiO4 tetrahedra. In the third Si site, Si(3) is bonded to one O(5), one O(8), and two equivalent O(4) atoms to form corner-sharing SiO4 tetrahedra. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a distorted bent 120 degrees geometry to one Rb(2), one Si(1), and one Si(2) atom. In the second O site, O(2) is bonded in a distorted bent 120 degrees geometry to one Rb(1), one Si(1), and one Si(2) atom. In the third O site, O(3) is bonded in a distorted single-bond geometry to one Rb(1), one Rb(2), one Rb(3), one Rb(4), and one Si(2) atom. In the fourth O site, O(4) is bonded in a distorted bent 150 degrees geometry to one Rb(3), one Si(1), and one Si(3) atom. In the fifth O site, O(5) is bonded in a distorted bent 150 degrees geometry to one Rb(4) and two equivalent Si(3) atoms. In the sixth O site, O(6) is bonded in a distorted bent 150 degrees geometry to one Rb(2), one Rb(4), and two equivalent Si(2) atoms. In the seventh O site, O(7) is bonded in a distorted bent 150 degrees geometry to one Rb(1) and two equivalent Si(1) atoms. In the eighth O site, O(8) is bonded in a distorted single-bond geometry to two equivalent Rb(1), two equivalent Rb(2), and one Si(3) atom. is represented by the CIF card [CIF]
data_Rb6Si10O23
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.401
_cell_length_b   9.401
_cell_length_c   8.045
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.457
_symmetry_Int_Tables_number   1
_cell_volume   612.965
_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  0.227  0.990  0.500  1.0
  Rb  Rb1  1  0.990  0.227  0.500  1.0
  Rb  Rb2  1  0.243  0.000  0.000  1.0
  Rb  Rb3  1  0.000  0.243  0.000  1.0
  Rb  Rb4  1  0.751  0.751  0.500  1.0
  Rb  Rb5  1  0.757  0.757  0.000  1.0
  Si  Si6  1  0.309  0.655  0.688  1.0
  Si  Si7  1  0.655  0.309  0.312  1.0
  Si  Si8  1  0.309  0.655  0.312  1.0
  Si  Si9  1  0.655  0.309  0.688  1.0
  Si  Si10  1  0.589  0.979  0.809  1.0
  Si  Si11  1  0.979  0.589  0.191  1.0
  Si  Si12  1  0.589  0.979  0.191  1.0
  Si  Si13  1  0.979  0.589  0.809  1.0
  Si  Si14  1  0.400  0.400  0.200  1.0
  Si  Si15  1  0.400  0.400  0.800  1.0
  O  O16  1  0.582  0.152  0.810  1.0
  O  O17  1  0.152  0.582  0.190  1.0
  O  O18  1  0.582  0.152  0.190  1.0
  O  O19  1  0.152  0.582  0.810  1.0
  O  O20  1  0.423  0.854  0.700  1.0
  O  O21  1  0.854  0.423  0.300  1.0
  O  O22  1  0.423  0.854  0.300  1.0
  O  O23  1  0.854  0.423  0.700  1.0
  O  O24  1  0.757  0.998  0.750  1.0
  O  O25  1  0.998  0.757  0.250  1.0
  O  O26  1  0.757  0.998  0.250  1.0
  O  O27  1  0.998  0.757  0.750  1.0
  O  O28  1  0.421  0.575  0.730  1.0
  O  O29  1  0.575  0.421  0.270  1.0
  O  O30  1  0.421  0.575  0.270  1.0
  O  O31  1  0.575  0.421  0.730  1.0
  O  O32  1  0.429  0.429  0.000  1.0
  O  O33  1  0.909  0.536  0.000  1.0
  O  O34  1  0.536  0.909  0.000  1.0
  O  O35  1  0.608  0.237  0.500  1.0
  O  O36  1  0.237  0.608  0.500  1.0
  O  O37  1  0.237  0.237  0.750  1.0
  O  O38  1  0.237  0.237  0.250  1.0
[/CIF]
.