The material described by Cs2CoSiO4 crystallizes in the orthorhombic Cmc2_1 space group. There are two inequivalent Cs sites. In the first Cs site, Cs(1) is bonded in a 6-coordinate geometry to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms. In the second Cs site, Cs(2) is bonded in a 6-coordinate geometry to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms. Co(1) is bonded to one O(1), one O(2), and two equivalent O(3) atoms to form CoO4 tetrahedra that share corners with two equivalent Si(1)O4 tetrahedra and  an edgeedge with one Si(1)O4 tetrahedra. Si(1) is bonded to one O(1), one O(2), and two equivalent O(3) atoms to form SiO4 tetrahedra that share corners with two equivalent Co(1)O4 tetrahedra and  an edgeedge with one Co(1)O4 tetrahedra. There are three inequivalent O sites. In the first O site, O(1) is bonded in a 2-coordinate geometry to two equivalent Cs(1), two equivalent Cs(2), one Co(1), and one Si(1) atom. In the second O site, O(2) is bonded in a 2-coordinate geometry to two equivalent Cs(1), two equivalent Cs(2), one Co(1), and one Si(1) atom. In the third O site, O(3) is bonded in a distorted bent 150 degrees geometry to one Cs(1), one Cs(2), one Co(1), and one Si(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Cs2CoSiO4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.888
_cell_length_b   7.062
_cell_length_c   8.233
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   114.635
_symmetry_Int_Tables_number   1
_cell_volume   311.208
_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
  Co  Co0  1  0.207  0.414  0.194  1.0
  Co  Co1  1  0.793  0.586  0.694  1.0
  Cs  Cs2  1  0.923  0.847  0.273  1.0
  Cs  Cs3  1  0.077  0.153  0.773  1.0
  Cs  Cs4  1  0.406  0.811  0.917  1.0
  Cs  Cs5  1  0.594  0.189  0.417  1.0
  O  O6  1  0.353  0.707  0.293  1.0
  O  O7  1  0.647  0.293  0.793  1.0
  O  O8  1  0.174  0.348  0.438  1.0
  O  O9  1  0.826  0.652  0.938  1.0
  O  O10  1  0.567  0.678  0.580  1.0
  O  O11  1  0.433  0.322  0.080  1.0
  O  O12  1  0.111  0.678  0.580  1.0
  O  O13  1  0.889  0.322  0.080  1.0
  Si  Si14  1  0.301  0.603  0.479  1.0
  Si  Si15  1  0.699  0.397  0.979  1.0
[/CIF]
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The material described by Cs2CoSiO4 crystallizes in the orthorhombic Cmc2_1 space group. There are two inequivalent Cs sites. In the first Cs site, Cs(1) is bonded in a 6-coordinate geometry to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms. In the second Cs site, Cs(2) is bonded in a 6-coordinate geometry to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms. Co(1) is bonded to one O(1), one O(2), and two equivalent O(3) atoms to form CoO4 tetrahedra that share corners with two equivalent Si(1)O4 tetrahedra and  an edgeedge with one Si(1)O4 tetrahedra. Si(1) is bonded to one O(1), one O(2), and two equivalent O(3) atoms to form SiO4 tetrahedra that share corners with two equivalent Co(1)O4 tetrahedra and  an edgeedge with one Co(1)O4 tetrahedra. There are three inequivalent O sites. In the first O site, O(1) is bonded in a 2-coordinate geometry to two equivalent Cs(1), two equivalent Cs(2), one Co(1), and one Si(1) atom. In the second O site, O(2) is bonded in a 2-coordinate geometry to two equivalent Cs(1), two equivalent Cs(2), one Co(1), and one Si(1) atom. In the third O site, O(3) is bonded in a distorted bent 150 degrees geometry to one Cs(1), one Cs(2), one Co(1), and one Si(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Cs2CoSiO4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.888
_cell_length_b   7.062
_cell_length_c   8.233
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   114.635
_symmetry_Int_Tables_number   1
_cell_volume   311.208
_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
  Co  Co0  1  0.207  0.414  0.194  1.0
  Co  Co1  1  0.793  0.586  0.694  1.0
  Cs  Cs2  1  0.923  0.847  0.273  1.0
  Cs  Cs3  1  0.077  0.153  0.773  1.0
  Cs  Cs4  1  0.406  0.811  0.917  1.0
  Cs  Cs5  1  0.594  0.189  0.417  1.0
  O  O6  1  0.353  0.707  0.293  1.0
  O  O7  1  0.647  0.293  0.793  1.0
  O  O8  1  0.174  0.348  0.438  1.0
  O  O9  1  0.826  0.652  0.938  1.0
  O  O10  1  0.567  0.678  0.580  1.0
  O  O11  1  0.433  0.322  0.080  1.0
  O  O12  1  0.111  0.678  0.580  1.0
  O  O13  1  0.889  0.322  0.080  1.0
  Si  Si14  1  0.301  0.603  0.479  1.0
  Si  Si15  1  0.699  0.397  0.979  1.0
[/CIF]
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