The crystal structure described by VZn(GeO3)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 Ge(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. Ge(1) is bonded to one O(2), one O(3), and two equivalent O(1) atoms to form GeO4 tetrahedra that share corners with three equivalent V(1)O6 octahedra and corners with two equivalent Ge(1)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 49-59°. There are three inequivalent O sites. In the first O site, O(1) is bonded in a bent 120 degrees geometry to two equivalent Ge(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 Ge(1) atom. In the third O site, O(3) is bonded to two equivalent V(1), one Zn(1), and one Ge(1) atom to form a mixture of distorted corner and edge-sharing OV2ZnGe trigonal pyramids. is represented by the Crystallographic Information File (CIF) [CIF]
data_VZn(GeO3)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.400
_cell_length_b   6.897
_cell_length_c   6.898
_cell_angle_alpha   85.850
_cell_angle_beta   78.320
_cell_angle_gamma   78.318
_symmetry_Int_Tables_number   1
_cell_volume   246.268
_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
  Ge  Ge0  1  0.753  0.391  0.212  1.0
  Ge  Ge1  1  0.747  0.788  0.609  1.0
  Ge  Ge2  1  0.247  0.609  0.788  1.0
  Ge  Ge3  1  0.253  0.212  0.391  1.0
  O  O4  1  0.537  0.299  0.415  1.0
  O  O5  1  0.963  0.584  0.701  1.0
  O  O6  1  0.463  0.701  0.585  1.0
  O  O7  1  0.037  0.416  0.299  1.0
  O  O8  1  0.108  0.141  0.628  1.0
  O  O9  1  0.392  0.372  0.859  1.0
  O  O10  1  0.892  0.859  0.372  1.0
  O  O11  1  0.608  0.628  0.141  1.0
  O  O12  1  0.852  0.206  0.031  1.0
  O  O13  1  0.648  0.969  0.794  1.0
  O  O14  1  0.148  0.794  0.969  1.0
  O  O15  1  0.352  0.031  0.206  1.0
  V  V16  1  0.750  0.907  0.093  1.0
  V  V17  1  0.250  0.093  0.907  1.0
  Zn  Zn18  1  0.750  0.251  0.749  1.0
  Zn  Zn19  1  0.250  0.749  0.251  1.0
[/CIF]
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The crystal structure described by VZn(GeO3)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 Ge(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. Ge(1) is bonded to one O(2), one O(3), and two equivalent O(1) atoms to form GeO4 tetrahedra that share corners with three equivalent V(1)O6 octahedra and corners with two equivalent Ge(1)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 49-59°. There are three inequivalent O sites. In the first O site, O(1) is bonded in a bent 120 degrees geometry to two equivalent Ge(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 Ge(1) atom. In the third O site, O(3) is bonded to two equivalent V(1), one Zn(1), and one Ge(1) atom to form a mixture of distorted corner and edge-sharing OV2ZnGe trigonal pyramids. is represented by the Crystallographic Information File (CIF) [CIF]
data_VZn(GeO3)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.400
_cell_length_b   6.897
_cell_length_c   6.898
_cell_angle_alpha   85.850
_cell_angle_beta   78.320
_cell_angle_gamma   78.318
_symmetry_Int_Tables_number   1
_cell_volume   246.268
_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
  Ge  Ge0  1  0.753  0.391  0.212  1.0
  Ge  Ge1  1  0.747  0.788  0.609  1.0
  Ge  Ge2  1  0.247  0.609  0.788  1.0
  Ge  Ge3  1  0.253  0.212  0.391  1.0
  O  O4  1  0.537  0.299  0.415  1.0
  O  O5  1  0.963  0.584  0.701  1.0
  O  O6  1  0.463  0.701  0.585  1.0
  O  O7  1  0.037  0.416  0.299  1.0
  O  O8  1  0.108  0.141  0.628  1.0
  O  O9  1  0.392  0.372  0.859  1.0
  O  O10  1  0.892  0.859  0.372  1.0
  O  O11  1  0.608  0.628  0.141  1.0
  O  O12  1  0.852  0.206  0.031  1.0
  O  O13  1  0.648  0.969  0.794  1.0
  O  O14  1  0.148  0.794  0.969  1.0
  O  O15  1  0.352  0.031  0.206  1.0
  V  V16  1  0.750  0.907  0.093  1.0
  V  V17  1  0.250  0.093  0.907  1.0
  Zn  Zn18  1  0.750  0.251  0.749  1.0
  Zn  Zn19  1  0.250  0.749  0.251  1.0
[/CIF]
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