The compound described by (Na)2Na3Si34 crystallizes in the trigonal R-3m space group. The structure consists of six 7440-23-5 atoms inside a Na3Si34 framework. In the Na3Si34 framework, Na(2) is bonded in a 20-coordinate geometry to two equivalent Si(1), two equivalent Si(3), four equivalent Si(2), four equivalent Si(4), four equivalent Si(5), and four equivalent Si(6) atoms. There are six inequivalent Si sites. In the first Si site, Si(1) is bonded in a 7-coordinate geometry to three equivalent Na(2), one Si(3), and three equivalent Si(4) atoms. In the second Si site, Si(2) is bonded in a 6-coordinate geometry to two equivalent Na(2), one Si(3), one Si(6), and two equivalent Si(5) atoms. In the third Si site, Si(3) is bonded in a 7-coordinate geometry to three equivalent Na(2), one Si(1), and three equivalent Si(2) atoms. In the fourth Si site, Si(4) is bonded in a 6-coordinate geometry to two equivalent Na(2), one Si(1), one Si(6), and two equivalent Si(5) atoms. In the fifth Si site, Si(5) is bonded in a 5-coordinate geometry to one Na(2), one Si(2), one Si(4), and two equivalent Si(5) atoms. In the sixth Si site, Si(6) is bonded in a 6-coordinate geometry to two equivalent Na(2), one Si(2), one Si(4), and two equivalent Si(6) atoms. is represented by the CIF file [CIF]
data_Na5Si34
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   10.383
_cell_length_b   10.383
_cell_length_c   10.383
_cell_angle_alpha   60.060
_cell_angle_beta   60.060
_cell_angle_gamma   60.060
_symmetry_Int_Tables_number   1
_cell_volume   792.632
_cell_formula_units_Z   1
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
  Na  Na0  1  0.375  0.375  0.375  1.0
  Na  Na1  1  0.625  0.625  0.625  1.0
  Na  Na2  1  0.500  0.000  0.000  1.0
  Na  Na3  1  0.000  0.000  0.500  1.0
  Na  Na4  1  0.000  0.500  0.000  1.0
  Si  Si5  1  0.782  0.782  0.782  1.0
  Si  Si6  1  0.153  0.782  0.782  1.0
  Si  Si7  1  0.782  0.782  0.153  1.0
  Si  Si8  1  0.782  0.153  0.782  1.0
  Si  Si9  1  0.218  0.218  0.218  1.0
  Si  Si10  1  0.847  0.218  0.218  1.0
  Si  Si11  1  0.218  0.218  0.847  1.0
  Si  Si12  1  0.218  0.847  0.218  1.0
  Si  Si13  1  0.875  0.875  0.875  1.0
  Si  Si14  1  0.125  0.125  0.125  1.0
  Si  Si15  1  0.628  0.006  0.628  1.0
  Si  Si16  1  0.236  0.629  0.006  1.0
  Si  Si17  1  0.006  0.629  0.236  1.0
  Si  Si18  1  0.629  0.236  0.629  1.0
  Si  Si19  1  0.629  0.006  0.236  1.0
  Si  Si20  1  0.006  0.628  0.628  1.0
  Si  Si21  1  0.236  0.629  0.629  1.0
  Si  Si22  1  0.629  0.236  0.006  1.0
  Si  Si23  1  0.236  0.006  0.629  1.0
  Si  Si24  1  0.629  0.629  0.236  1.0
  Si  Si25  1  0.628  0.628  0.006  1.0
  Si  Si26  1  0.006  0.236  0.629  1.0
  Si  Si27  1  0.372  0.994  0.372  1.0
  Si  Si28  1  0.764  0.371  0.994  1.0
  Si  Si29  1  0.994  0.371  0.764  1.0
  Si  Si30  1  0.371  0.764  0.371  1.0
  Si  Si31  1  0.371  0.994  0.764  1.0
  Si  Si32  1  0.994  0.372  0.372  1.0
  Si  Si33  1  0.764  0.371  0.371  1.0
  Si  Si34  1  0.371  0.764  0.994  1.0
  Si  Si35  1  0.764  0.994  0.371  1.0
  Si  Si36  1  0.371  0.371  0.764  1.0
  Si  Si37  1  0.372  0.372  0.994  1.0
  Si  Si38  1  0.994  0.764  0.371  1.0
[/CIF]
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The compound described by (Na)2Na3Si34 crystallizes in the trigonal R-3m space group. The structure consists of six 7440-23-5 atoms inside a Na3Si34 framework. In the Na3Si34 framework, Na(2) is bonded in a 20-coordinate geometry to two equivalent Si(1), two equivalent Si(3), four equivalent Si(2), four equivalent Si(4), four equivalent Si(5), and four equivalent Si(6) atoms. There are six inequivalent Si sites. In the first Si site, Si(1) is bonded in a 7-coordinate geometry to three equivalent Na(2), one Si(3), and three equivalent Si(4) atoms. In the second Si site, Si(2) is bonded in a 6-coordinate geometry to two equivalent Na(2), one Si(3), one Si(6), and two equivalent Si(5) atoms. In the third Si site, Si(3) is bonded in a 7-coordinate geometry to three equivalent Na(2), one Si(1), and three equivalent Si(2) atoms. In the fourth Si site, Si(4) is bonded in a 6-coordinate geometry to two equivalent Na(2), one Si(1), one Si(6), and two equivalent Si(5) atoms. In the fifth Si site, Si(5) is bonded in a 5-coordinate geometry to one Na(2), one Si(2), one Si(4), and two equivalent Si(5) atoms. In the sixth Si site, Si(6) is bonded in a 6-coordinate geometry to two equivalent Na(2), one Si(2), one Si(4), and two equivalent Si(6) atoms. is represented by the CIF file [CIF]
data_Na5Si34
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   10.383
_cell_length_b   10.383
_cell_length_c   10.383
_cell_angle_alpha   60.060
_cell_angle_beta   60.060
_cell_angle_gamma   60.060
_symmetry_Int_Tables_number   1
_cell_volume   792.632
_cell_formula_units_Z   1
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
  Na  Na0  1  0.375  0.375  0.375  1.0
  Na  Na1  1  0.625  0.625  0.625  1.0
  Na  Na2  1  0.500  0.000  0.000  1.0
  Na  Na3  1  0.000  0.000  0.500  1.0
  Na  Na4  1  0.000  0.500  0.000  1.0
  Si  Si5  1  0.782  0.782  0.782  1.0
  Si  Si6  1  0.153  0.782  0.782  1.0
  Si  Si7  1  0.782  0.782  0.153  1.0
  Si  Si8  1  0.782  0.153  0.782  1.0
  Si  Si9  1  0.218  0.218  0.218  1.0
  Si  Si10  1  0.847  0.218  0.218  1.0
  Si  Si11  1  0.218  0.218  0.847  1.0
  Si  Si12  1  0.218  0.847  0.218  1.0
  Si  Si13  1  0.875  0.875  0.875  1.0
  Si  Si14  1  0.125  0.125  0.125  1.0
  Si  Si15  1  0.628  0.006  0.628  1.0
  Si  Si16  1  0.236  0.629  0.006  1.0
  Si  Si17  1  0.006  0.629  0.236  1.0
  Si  Si18  1  0.629  0.236  0.629  1.0
  Si  Si19  1  0.629  0.006  0.236  1.0
  Si  Si20  1  0.006  0.628  0.628  1.0
  Si  Si21  1  0.236  0.629  0.629  1.0
  Si  Si22  1  0.629  0.236  0.006  1.0
  Si  Si23  1  0.236  0.006  0.629  1.0
  Si  Si24  1  0.629  0.629  0.236  1.0
  Si  Si25  1  0.628  0.628  0.006  1.0
  Si  Si26  1  0.006  0.236  0.629  1.0
  Si  Si27  1  0.372  0.994  0.372  1.0
  Si  Si28  1  0.764  0.371  0.994  1.0
  Si  Si29  1  0.994  0.371  0.764  1.0
  Si  Si30  1  0.371  0.764  0.371  1.0
  Si  Si31  1  0.371  0.994  0.764  1.0
  Si  Si32  1  0.994  0.372  0.372  1.0
  Si  Si33  1  0.764  0.371  0.371  1.0
  Si  Si34  1  0.371  0.764  0.994  1.0
  Si  Si35  1  0.764  0.994  0.371  1.0
  Si  Si36  1  0.371  0.371  0.764  1.0
  Si  Si37  1  0.372  0.372  0.994  1.0
  Si  Si38  1  0.994  0.764  0.371  1.0
[/CIF]
.