The material structure described by K2ZrSi3O11 crystallizes in the orthorhombic C222_1 space group. K(1) is bonded in a 7-coordinate geometry to one O(2), one O(3), one O(4), two equivalent O(1), and two equivalent O(6) atoms. Zr(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(4) atoms to form ZrO6 octahedra that share corners with two equivalent Si(1)O4 tetrahedra and corners with four equivalent Si(2)O4 tetrahedra. There are two inequivalent Si sites. In the first Si site, Si(1) is bonded to two equivalent O(1) and two equivalent O(3) atoms to form SiO4 tetrahedra that share corners with two equivalent Zr(1)O6 octahedra and corners with two equivalent Si(2)O4 tetrahedra. The corner-sharing octahedral tilt angles are 44°. In the second Si site, Si(2) is bonded to one O(2), one O(3), one O(4), and one O(5) atom to form SiO4 tetrahedra that share corners with two equivalent Zr(1)O6 octahedra,  a cornercorner with one Si(1)O4 tetrahedra, and  a cornercorner with one Si(2)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 40-41°. There are six inequivalent O sites. In the first O site, O(3) is bonded in a 3-coordinate geometry to one K(1), one Si(1), and one Si(2) atom. In the second O site, O(4) is bonded in a 2-coordinate geometry to one K(1), one Zr(1), and one Si(2) atom. In the third O site, O(5) is bonded in a distorted bent 150 degrees geometry to two equivalent Si(2) atoms. In the fourth O site, O(6) is bonded in a water-like geometry to two equivalent K(1) atoms. In the fifth O site, O(1) is bonded in a 4-coordinate geometry to two equivalent K(1), one Zr(1), and one Si(1) atom. In the sixth O site, O(2) is bonded in a 3-coordinate geometry to one K(1), one Zr(1), and one Si(2) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_K2ZrSi3O11
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.773
_cell_length_b   6.773
_cell_length_c   12.106
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   105.465
_symmetry_Int_Tables_number   1
_cell_volume   535.240
_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
  K  K0  1  0.528  0.125  0.550  1.0
  K  K1  1  0.125  0.528  0.450  1.0
  K  K2  1  0.472  0.875  0.050  1.0
  K  K3  1  0.875  0.472  0.950  1.0
  Zr  Zr4  1  0.408  0.592  0.750  1.0
  Zr  Zr5  1  0.592  0.408  0.250  1.0
  Si  Si6  1  0.673  0.673  0.500  1.0
  Si  Si7  1  0.327  0.327  0.000  1.0
  Si  Si8  1  0.290  0.065  0.791  1.0
  Si  Si9  1  0.065  0.290  0.209  1.0
  Si  Si10  1  0.710  0.935  0.291  1.0
  Si  Si11  1  0.935  0.710  0.709  1.0
  O  O12  1  0.475  0.652  0.579  1.0
  O  O13  1  0.652  0.475  0.421  1.0
  O  O14  1  0.525  0.348  0.079  1.0
  O  O15  1  0.348  0.525  0.921  1.0
  O  O16  1  0.366  0.278  0.723  1.0
  O  O17  1  0.278  0.366  0.277  1.0
  O  O18  1  0.634  0.722  0.223  1.0
  O  O19  1  0.722  0.634  0.777  1.0
  O  O20  1  0.289  0.115  0.925  1.0
  O  O21  1  0.115  0.289  0.075  1.0
  O  O22  1  0.711  0.885  0.425  1.0
  O  O23  1  0.885  0.711  0.575  1.0
  O  O24  1  0.434  0.910  0.774  1.0
  O  O25  1  0.910  0.434  0.226  1.0
  O  O26  1  0.566  0.090  0.274  1.0
  O  O27  1  0.090  0.566  0.726  1.0
  O  O28  1  0.053  0.947  0.750  1.0
  O  O29  1  0.947  0.053  0.250  1.0
  O  O30  1  0.793  0.050  0.903  1.0
  O  O31  1  0.050  0.793  0.097  1.0
  O  O32  1  0.207  0.950  0.403  1.0
  O  O33  1  0.950  0.207  0.597  1.0
[/CIF]
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The material structure described by K2ZrSi3O11 crystallizes in the orthorhombic C222_1 space group. K(1) is bonded in a 7-coordinate geometry to one O(2), one O(3), one O(4), two equivalent O(1), and two equivalent O(6) atoms. Zr(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(4) atoms to form ZrO6 octahedra that share corners with two equivalent Si(1)O4 tetrahedra and corners with four equivalent Si(2)O4 tetrahedra. There are two inequivalent Si sites. In the first Si site, Si(1) is bonded to two equivalent O(1) and two equivalent O(3) atoms to form SiO4 tetrahedra that share corners with two equivalent Zr(1)O6 octahedra and corners with two equivalent Si(2)O4 tetrahedra. The corner-sharing octahedral tilt angles are 44°. In the second Si site, Si(2) is bonded to one O(2), one O(3), one O(4), and one O(5) atom to form SiO4 tetrahedra that share corners with two equivalent Zr(1)O6 octahedra,  a cornercorner with one Si(1)O4 tetrahedra, and  a cornercorner with one Si(2)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 40-41°. There are six inequivalent O sites. In the first O site, O(3) is bonded in a 3-coordinate geometry to one K(1), one Si(1), and one Si(2) atom. In the second O site, O(4) is bonded in a 2-coordinate geometry to one K(1), one Zr(1), and one Si(2) atom. In the third O site, O(5) is bonded in a distorted bent 150 degrees geometry to two equivalent Si(2) atoms. In the fourth O site, O(6) is bonded in a water-like geometry to two equivalent K(1) atoms. In the fifth O site, O(1) is bonded in a 4-coordinate geometry to two equivalent K(1), one Zr(1), and one Si(1) atom. In the sixth O site, O(2) is bonded in a 3-coordinate geometry to one K(1), one Zr(1), and one Si(2) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_K2ZrSi3O11
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.773
_cell_length_b   6.773
_cell_length_c   12.106
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   105.465
_symmetry_Int_Tables_number   1
_cell_volume   535.240
_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
  K  K0  1  0.528  0.125  0.550  1.0
  K  K1  1  0.125  0.528  0.450  1.0
  K  K2  1  0.472  0.875  0.050  1.0
  K  K3  1  0.875  0.472  0.950  1.0
  Zr  Zr4  1  0.408  0.592  0.750  1.0
  Zr  Zr5  1  0.592  0.408  0.250  1.0
  Si  Si6  1  0.673  0.673  0.500  1.0
  Si  Si7  1  0.327  0.327  0.000  1.0
  Si  Si8  1  0.290  0.065  0.791  1.0
  Si  Si9  1  0.065  0.290  0.209  1.0
  Si  Si10  1  0.710  0.935  0.291  1.0
  Si  Si11  1  0.935  0.710  0.709  1.0
  O  O12  1  0.475  0.652  0.579  1.0
  O  O13  1  0.652  0.475  0.421  1.0
  O  O14  1  0.525  0.348  0.079  1.0
  O  O15  1  0.348  0.525  0.921  1.0
  O  O16  1  0.366  0.278  0.723  1.0
  O  O17  1  0.278  0.366  0.277  1.0
  O  O18  1  0.634  0.722  0.223  1.0
  O  O19  1  0.722  0.634  0.777  1.0
  O  O20  1  0.289  0.115  0.925  1.0
  O  O21  1  0.115  0.289  0.075  1.0
  O  O22  1  0.711  0.885  0.425  1.0
  O  O23  1  0.885  0.711  0.575  1.0
  O  O24  1  0.434  0.910  0.774  1.0
  O  O25  1  0.910  0.434  0.226  1.0
  O  O26  1  0.566  0.090  0.274  1.0
  O  O27  1  0.090  0.566  0.726  1.0
  O  O28  1  0.053  0.947  0.750  1.0
  O  O29  1  0.947  0.053  0.250  1.0
  O  O30  1  0.793  0.050  0.903  1.0
  O  O31  1  0.050  0.793  0.097  1.0
  O  O32  1  0.207  0.950  0.403  1.0
  O  O33  1  0.950  0.207  0.597  1.0
[/CIF]
.