The material described by VZn(SiO3)2 is Esseneite structured and crystallizes in the monoclinic C2/c space group. V(1) is bonded to two equivalent O(2) and four equivalent O(3) atoms to form VO6 octahedra that share corners with six equivalent Si(1)O4 tetrahedra and edges with two equivalent V(1)O6 octahedra. Zn(1) 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 V(1)O6 octahedra and corners with two equivalent Si(1)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 40-59°. 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 V(1), one Zn(1), and one Si(1) atom. In the third O site, O(3) is bonded in a distorted rectangular see-saw-like geometry to two equivalent V(1), one Zn(1), and one Si(1) atom. is represented by the CIF card [CIF]
data_VZn(SiO3)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.391
_cell_length_b   6.823
_cell_length_c   6.823
_cell_angle_alpha   86.898
_cell_angle_beta   75.380
_cell_angle_gamma   75.380
_symmetry_Int_Tables_number   1
_cell_volume   234.993
_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
  O  O0  1  0.538  0.620  0.668  1.0
  O  O1  1  0.962  0.332  0.380  1.0
  O  O2  1  0.462  0.380  0.332  1.0
  O  O3  1  0.038  0.668  0.620  1.0
  O  O4  1  0.878  0.380  0.853  1.0
  O  O5  1  0.622  0.147  0.620  1.0
  O  O6  1  0.122  0.620  0.147  1.0
  O  O7  1  0.378  0.853  0.380  1.0
  O  O8  1  0.164  0.958  0.787  1.0
  O  O9  1  0.336  0.213  0.042  1.0
  O  O10  1  0.664  0.787  0.958  1.0
  O  O11  1  0.836  0.042  0.213  1.0
  Si  Si12  1  0.779  0.611  0.779  1.0
  Si  Si13  1  0.721  0.221  0.389  1.0
  Si  Si14  1  0.279  0.779  0.611  1.0
  Si  Si15  1  0.221  0.389  0.221  1.0
  V  V16  1  0.750  0.096  0.904  1.0
  V  V17  1  0.250  0.904  0.096  1.0
  Zn  Zn18  1  0.250  0.240  0.760  1.0
  Zn  Zn19  1  0.750  0.760  0.240  1.0
[/CIF]
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The material described by VZn(SiO3)2 is Esseneite structured and crystallizes in the monoclinic C2/c space group. V(1) is bonded to two equivalent O(2) and four equivalent O(3) atoms to form VO6 octahedra that share corners with six equivalent Si(1)O4 tetrahedra and edges with two equivalent V(1)O6 octahedra. Zn(1) 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 V(1)O6 octahedra and corners with two equivalent Si(1)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 40-59°. 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 V(1), one Zn(1), and one Si(1) atom. In the third O site, O(3) is bonded in a distorted rectangular see-saw-like geometry to two equivalent V(1), one Zn(1), and one Si(1) atom. is represented by the CIF card [CIF]
data_VZn(SiO3)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.391
_cell_length_b   6.823
_cell_length_c   6.823
_cell_angle_alpha   86.898
_cell_angle_beta   75.380
_cell_angle_gamma   75.380
_symmetry_Int_Tables_number   1
_cell_volume   234.993
_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
  O  O0  1  0.538  0.620  0.668  1.0
  O  O1  1  0.962  0.332  0.380  1.0
  O  O2  1  0.462  0.380  0.332  1.0
  O  O3  1  0.038  0.668  0.620  1.0
  O  O4  1  0.878  0.380  0.853  1.0
  O  O5  1  0.622  0.147  0.620  1.0
  O  O6  1  0.122  0.620  0.147  1.0
  O  O7  1  0.378  0.853  0.380  1.0
  O  O8  1  0.164  0.958  0.787  1.0
  O  O9  1  0.336  0.213  0.042  1.0
  O  O10  1  0.664  0.787  0.958  1.0
  O  O11  1  0.836  0.042  0.213  1.0
  Si  Si12  1  0.779  0.611  0.779  1.0
  Si  Si13  1  0.721  0.221  0.389  1.0
  Si  Si14  1  0.279  0.779  0.611  1.0
  Si  Si15  1  0.221  0.389  0.221  1.0
  V  V16  1  0.750  0.096  0.904  1.0
  V  V17  1  0.250  0.904  0.096  1.0
  Zn  Zn18  1  0.250  0.240  0.760  1.0
  Zn  Zn19  1  0.750  0.760  0.240  1.0
[/CIF]
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