The structure described by ZnSiO3 crystallizes in the monoclinic C2/c space group. There are two inequivalent Zn sites. In the first Zn site, Zn(1) is bonded to two equivalent O(2) and four equivalent O(3) atoms to form distorted ZnO6 octahedra that share corners with six equivalent Si(1)O4 tetrahedra and edges with two equivalent Zn(1)O6 octahedra. In the second Zn site, Zn(2) is bonded in a rectangular see-saw-like geometry to two equivalent O(2) and two equivalent O(3) atoms. Si(1) is bonded to one O(2), one O(3), and two equivalent O(1) atoms to form SiO4 tetrahedra that share corners with three equivalent Zn(1)O6 octahedra and corners with two equivalent Si(1)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 43-64°. There are three inequivalent O sites. In the first O site, O(1) is bonded in a bent 150 degrees geometry to two equivalent Si(1) atoms. In the second O site, O(2) is bonded in a distorted trigonal planar geometry to one Zn(1), one Zn(2), and one Si(1) atom. In the third O site, O(3) is bonded in a 4-coordinate geometry to one Zn(2), two equivalent Zn(1), and one Si(1) atom. is represented by the CIF file [CIF]
data_ZnSiO3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.887
_cell_length_b   6.887
_cell_length_c   5.373
_cell_angle_alpha   73.725
_cell_angle_beta   73.725
_cell_angle_gamma   86.564
_symmetry_Int_Tables_number   1
_cell_volume   234.761
_cell_formula_units_Z   4
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
  Zn  Zn0  1  0.116  0.884  0.750  1.0
  Zn  Zn1  1  0.769  0.231  0.750  1.0
  Zn  Zn2  1  0.231  0.769  0.250  1.0
  Zn  Zn3  1  0.884  0.116  0.250  1.0
  Si  Si4  1  0.385  0.217  0.233  1.0
  Si  Si5  1  0.615  0.783  0.767  1.0
  Si  Si6  1  0.217  0.385  0.733  1.0
  Si  Si7  1  0.783  0.615  0.267  1.0
  O  O8  1  0.328  0.376  0.970  1.0
  O  O9  1  0.376  0.328  0.470  1.0
  O  O10  1  0.624  0.672  0.530  1.0
  O  O11  1  0.855  0.384  0.374  1.0
  O  O12  1  0.384  0.855  0.874  1.0
  O  O13  1  0.966  0.788  0.141  1.0
  O  O14  1  0.788  0.966  0.641  1.0
  O  O15  1  0.672  0.624  0.030  1.0
  O  O16  1  0.145  0.616  0.626  1.0
  O  O17  1  0.616  0.145  0.126  1.0
  O  O18  1  0.034  0.212  0.859  1.0
  O  O19  1  0.212  0.034  0.359  1.0
[/CIF]
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The structure described by ZnSiO3 crystallizes in the monoclinic C2/c space group. There are two inequivalent Zn sites. In the first Zn site, Zn(1) is bonded to two equivalent O(2) and four equivalent O(3) atoms to form distorted ZnO6 octahedra that share corners with six equivalent Si(1)O4 tetrahedra and edges with two equivalent Zn(1)O6 octahedra. In the second Zn site, Zn(2) is bonded in a rectangular see-saw-like geometry to two equivalent O(2) and two equivalent O(3) atoms. Si(1) is bonded to one O(2), one O(3), and two equivalent O(1) atoms to form SiO4 tetrahedra that share corners with three equivalent Zn(1)O6 octahedra and corners with two equivalent Si(1)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 43-64°. There are three inequivalent O sites. In the first O site, O(1) is bonded in a bent 150 degrees geometry to two equivalent Si(1) atoms. In the second O site, O(2) is bonded in a distorted trigonal planar geometry to one Zn(1), one Zn(2), and one Si(1) atom. In the third O site, O(3) is bonded in a 4-coordinate geometry to one Zn(2), two equivalent Zn(1), and one Si(1) atom. is represented by the CIF file [CIF]
data_ZnSiO3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.887
_cell_length_b   6.887
_cell_length_c   5.373
_cell_angle_alpha   73.725
_cell_angle_beta   73.725
_cell_angle_gamma   86.564
_symmetry_Int_Tables_number   1
_cell_volume   234.761
_cell_formula_units_Z   4
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
  Zn  Zn0  1  0.116  0.884  0.750  1.0
  Zn  Zn1  1  0.769  0.231  0.750  1.0
  Zn  Zn2  1  0.231  0.769  0.250  1.0
  Zn  Zn3  1  0.884  0.116  0.250  1.0
  Si  Si4  1  0.385  0.217  0.233  1.0
  Si  Si5  1  0.615  0.783  0.767  1.0
  Si  Si6  1  0.217  0.385  0.733  1.0
  Si  Si7  1  0.783  0.615  0.267  1.0
  O  O8  1  0.328  0.376  0.970  1.0
  O  O9  1  0.376  0.328  0.470  1.0
  O  O10  1  0.624  0.672  0.530  1.0
  O  O11  1  0.855  0.384  0.374  1.0
  O  O12  1  0.384  0.855  0.874  1.0
  O  O13  1  0.966  0.788  0.141  1.0
  O  O14  1  0.788  0.966  0.641  1.0
  O  O15  1  0.672  0.624  0.030  1.0
  O  O16  1  0.145  0.616  0.626  1.0
  O  O17  1  0.616  0.145  0.126  1.0
  O  O18  1  0.034  0.212  0.859  1.0
  O  O19  1  0.212  0.034  0.359  1.0
[/CIF]
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