The crystal structure described by Rb2Sr2(CO3)3 crystallizes in the cubic I2_13 space group. Rb(1) is bonded in a 6-coordinate geometry to three equivalent O(1) and three equivalent O(2) atoms. Sr(1) is bonded in a 9-coordinate geometry to three equivalent O(1) and six equivalent O(2) atoms. C(1) is bonded in a trigonal planar geometry to one O(1) and two equivalent O(2) atoms. There are two inequivalent O sites. In the first O site, O(2) is bonded in a distorted single-bond geometry to one Rb(1), two equivalent Sr(1), and one C(1) atom. In the second O site, O(1) is bonded in a distorted single-bond geometry to two equivalent Rb(1), two equivalent Sr(1), and one C(1) atom. is represented by the CIF card [CIF]
data_Rb2Sr2(CO3)3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.612
_cell_length_b   8.612
_cell_length_c   8.612
_cell_angle_alpha   109.471
_cell_angle_beta   109.471
_cell_angle_gamma   109.471
_symmetry_Int_Tables_number   1
_cell_volume   491.729
_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
  Rb  Rb0  1  0.870  0.870  0.870  1.0
  Rb  Rb1  1  0.500  0.000  0.630  1.0
  Rb  Rb2  1  0.630  0.500  0.000  1.0
  Rb  Rb3  1  0.000  0.630  0.500  1.0
  Sr  Sr4  1  0.424  0.424  0.424  1.0
  Sr  Sr5  1  0.500  0.000  0.076  1.0
  Sr  Sr6  1  0.076  0.500  0.000  1.0
  Sr  Sr7  1  0.000  0.076  0.500  1.0
  C  C8  1  0.584  0.750  0.334  1.0
  C  C9  1  0.916  0.250  0.166  1.0
  C  C10  1  0.334  0.584  0.750  1.0
  C  C11  1  0.750  0.334  0.584  1.0
  C  C12  1  0.250  0.166  0.916  1.0
  C  C13  1  0.166  0.916  0.250  1.0
  O  O14  1  0.716  0.750  0.466  1.0
  O  O15  1  0.784  0.250  0.034  1.0
  O  O16  1  0.466  0.716  0.750  1.0
  O  O17  1  0.750  0.466  0.716  1.0
  O  O18  1  0.250  0.034  0.784  1.0
  O  O19  1  0.034  0.784  0.250  1.0
  O  O20  1  0.411  0.671  0.301  1.0
  O  O21  1  0.870  0.110  0.199  1.0
  O  O22  1  0.089  0.390  0.260  1.0
  O  O23  1  0.630  0.829  0.240  1.0
  O  O24  1  0.301  0.411  0.671  1.0
  O  O25  1  0.671  0.301  0.411  1.0
  O  O26  1  0.240  0.630  0.829  1.0
  O  O27  1  0.110  0.199  0.870  1.0
  O  O28  1  0.199  0.870  0.110  1.0
  O  O29  1  0.390  0.260  0.089  1.0
  O  O30  1  0.260  0.089  0.390  1.0
  O  O31  1  0.829  0.240  0.630  1.0
[/CIF]
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The crystal structure described by Rb2Sr2(CO3)3 crystallizes in the cubic I2_13 space group. Rb(1) is bonded in a 6-coordinate geometry to three equivalent O(1) and three equivalent O(2) atoms. Sr(1) is bonded in a 9-coordinate geometry to three equivalent O(1) and six equivalent O(2) atoms. C(1) is bonded in a trigonal planar geometry to one O(1) and two equivalent O(2) atoms. There are two inequivalent O sites. In the first O site, O(2) is bonded in a distorted single-bond geometry to one Rb(1), two equivalent Sr(1), and one C(1) atom. In the second O site, O(1) is bonded in a distorted single-bond geometry to two equivalent Rb(1), two equivalent Sr(1), and one C(1) atom. is represented by the CIF card [CIF]
data_Rb2Sr2(CO3)3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.612
_cell_length_b   8.612
_cell_length_c   8.612
_cell_angle_alpha   109.471
_cell_angle_beta   109.471
_cell_angle_gamma   109.471
_symmetry_Int_Tables_number   1
_cell_volume   491.729
_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
  Rb  Rb0  1  0.870  0.870  0.870  1.0
  Rb  Rb1  1  0.500  0.000  0.630  1.0
  Rb  Rb2  1  0.630  0.500  0.000  1.0
  Rb  Rb3  1  0.000  0.630  0.500  1.0
  Sr  Sr4  1  0.424  0.424  0.424  1.0
  Sr  Sr5  1  0.500  0.000  0.076  1.0
  Sr  Sr6  1  0.076  0.500  0.000  1.0
  Sr  Sr7  1  0.000  0.076  0.500  1.0
  C  C8  1  0.584  0.750  0.334  1.0
  C  C9  1  0.916  0.250  0.166  1.0
  C  C10  1  0.334  0.584  0.750  1.0
  C  C11  1  0.750  0.334  0.584  1.0
  C  C12  1  0.250  0.166  0.916  1.0
  C  C13  1  0.166  0.916  0.250  1.0
  O  O14  1  0.716  0.750  0.466  1.0
  O  O15  1  0.784  0.250  0.034  1.0
  O  O16  1  0.466  0.716  0.750  1.0
  O  O17  1  0.750  0.466  0.716  1.0
  O  O18  1  0.250  0.034  0.784  1.0
  O  O19  1  0.034  0.784  0.250  1.0
  O  O20  1  0.411  0.671  0.301  1.0
  O  O21  1  0.870  0.110  0.199  1.0
  O  O22  1  0.089  0.390  0.260  1.0
  O  O23  1  0.630  0.829  0.240  1.0
  O  O24  1  0.301  0.411  0.671  1.0
  O  O25  1  0.671  0.301  0.411  1.0
  O  O26  1  0.240  0.630  0.829  1.0
  O  O27  1  0.110  0.199  0.870  1.0
  O  O28  1  0.199  0.870  0.110  1.0
  O  O29  1  0.390  0.260  0.089  1.0
  O  O30  1  0.260  0.089  0.390  1.0
  O  O31  1  0.829  0.240  0.630  1.0
[/CIF]
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