The crystal structure described by LiAlSiH2O5 crystallizes in the orthorhombic Pna2_1 space group. Li(1) is bonded in a trigonal planar geometry to one O(2), one O(3), and one O(4) atom. Al(1) is bonded in a 4-coordinate geometry to one O(1), one O(2), one O(4), and one O(5) atom. Si(1) is bonded in a rectangular see-saw-like geometry to one O(1), one O(2), one O(4), and one O(5) atom. There are two inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one O(3) atom. In the second H site, H(2) is bonded in a distorted single-bond geometry to one O(2) and one O(3) atom. There are five inequivalent O sites. In the first O site, O(1) is bonded in a distorted L-shaped geometry to one Al(1) and one Si(1) atom. In the second O site, O(2) is bonded in a distorted trigonal pyramidal geometry to one Li(1), one Al(1), one Si(1), and one H(2) atom. In the third O site, O(3) is bonded in a distorted trigonal planar geometry to one Li(1), one H(1), and one H(2) atom. In the fourth O site, O(4) is bonded in a distorted trigonal non-coplanar geometry to one Li(1), one Al(1), and one Si(1) atom. In the fifth O site, O(5) is bonded in a bent 150 degrees geometry to one Al(1) and one Si(1) atom. is represented by the CIF file [CIF]
data_LiAlSiH2O5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.880
_cell_length_b   8.866
_cell_length_c   12.066
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   522.021
_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
  Li  Li0  1  0.071  0.922  0.382  1.0
  Li  Li1  1  0.071  0.578  0.882  1.0
  Li  Li2  1  0.571  0.078  0.618  1.0
  Li  Li3  1  0.571  0.422  0.118  1.0
  Al  Al4  1  0.606  0.680  0.725  1.0
  Al  Al5  1  0.106  0.180  0.775  1.0
  Al  Al6  1  0.606  0.820  0.225  1.0
  Al  Al7  1  0.106  0.320  0.275  1.0
  Si  Si8  1  0.830  0.631  0.296  1.0
  Si  Si9  1  0.330  0.369  0.704  1.0
  Si  Si10  1  0.330  0.131  0.204  1.0
  Si  Si11  1  0.830  0.869  0.796  1.0
  H  H12  1  0.220  0.824  0.572  1.0
  H  H13  1  0.413  0.125  0.421  1.0
  H  H14  1  0.913  0.875  0.579  1.0
  H  H15  1  0.720  0.324  0.928  1.0
  H  H16  1  0.720  0.176  0.428  1.0
  H  H17  1  0.413  0.375  0.921  1.0
  H  H18  1  0.913  0.625  0.079  1.0
  H  H19  1  0.220  0.676  0.072  1.0
  O  O20  1  0.576  0.780  0.860  1.0
  O  O21  1  0.158  0.375  0.831  1.0
  O  O22  1  0.658  0.625  0.169  1.0
  O  O23  1  0.576  0.720  0.360  1.0
  O  O24  1  0.089  0.611  0.036  1.0
  O  O25  1  0.495  0.291  0.240  1.0
  O  O26  1  0.995  0.791  0.260  1.0
  O  O27  1  0.076  0.280  0.640  1.0
  O  O28  1  0.482  0.520  0.666  1.0
  O  O29  1  0.076  0.220  0.140  1.0
  O  O30  1  0.482  0.980  0.166  1.0
  O  O31  1  0.995  0.709  0.760  1.0
  O  O32  1  0.982  0.020  0.834  1.0
  O  O33  1  0.589  0.111  0.464  1.0
  O  O34  1  0.658  0.875  0.669  1.0
  O  O35  1  0.495  0.209  0.740  1.0
  O  O36  1  0.158  0.125  0.331  1.0
  O  O37  1  0.089  0.889  0.536  1.0
  O  O38  1  0.589  0.389  0.964  1.0
  O  O39  1  0.982  0.480  0.334  1.0
[/CIF]
.
The crystal structure described by LiAlSiH2O5 crystallizes in the orthorhombic Pna2_1 space group. Li(1) is bonded in a trigonal planar geometry to one O(2), one O(3), and one O(4) atom. Al(1) is bonded in a 4-coordinate geometry to one O(1), one O(2), one O(4), and one O(5) atom. Si(1) is bonded in a rectangular see-saw-like geometry to one O(1), one O(2), one O(4), and one O(5) atom. There are two inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one O(3) atom. In the second H site, H(2) is bonded in a distorted single-bond geometry to one O(2) and one O(3) atom. There are five inequivalent O sites. In the first O site, O(1) is bonded in a distorted L-shaped geometry to one Al(1) and one Si(1) atom. In the second O site, O(2) is bonded in a distorted trigonal pyramidal geometry to one Li(1), one Al(1), one Si(1), and one H(2) atom. In the third O site, O(3) is bonded in a distorted trigonal planar geometry to one Li(1), one H(1), and one H(2) atom. In the fourth O site, O(4) is bonded in a distorted trigonal non-coplanar geometry to one Li(1), one Al(1), and one Si(1) atom. In the fifth O site, O(5) is bonded in a bent 150 degrees geometry to one Al(1) and one Si(1) atom. is represented by the CIF file [CIF]
data_LiAlSiH2O5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.880
_cell_length_b   8.866
_cell_length_c   12.066
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   522.021
_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
  Li  Li0  1  0.071  0.922  0.382  1.0
  Li  Li1  1  0.071  0.578  0.882  1.0
  Li  Li2  1  0.571  0.078  0.618  1.0
  Li  Li3  1  0.571  0.422  0.118  1.0
  Al  Al4  1  0.606  0.680  0.725  1.0
  Al  Al5  1  0.106  0.180  0.775  1.0
  Al  Al6  1  0.606  0.820  0.225  1.0
  Al  Al7  1  0.106  0.320  0.275  1.0
  Si  Si8  1  0.830  0.631  0.296  1.0
  Si  Si9  1  0.330  0.369  0.704  1.0
  Si  Si10  1  0.330  0.131  0.204  1.0
  Si  Si11  1  0.830  0.869  0.796  1.0
  H  H12  1  0.220  0.824  0.572  1.0
  H  H13  1  0.413  0.125  0.421  1.0
  H  H14  1  0.913  0.875  0.579  1.0
  H  H15  1  0.720  0.324  0.928  1.0
  H  H16  1  0.720  0.176  0.428  1.0
  H  H17  1  0.413  0.375  0.921  1.0
  H  H18  1  0.913  0.625  0.079  1.0
  H  H19  1  0.220  0.676  0.072  1.0
  O  O20  1  0.576  0.780  0.860  1.0
  O  O21  1  0.158  0.375  0.831  1.0
  O  O22  1  0.658  0.625  0.169  1.0
  O  O23  1  0.576  0.720  0.360  1.0
  O  O24  1  0.089  0.611  0.036  1.0
  O  O25  1  0.495  0.291  0.240  1.0
  O  O26  1  0.995  0.791  0.260  1.0
  O  O27  1  0.076  0.280  0.640  1.0
  O  O28  1  0.482  0.520  0.666  1.0
  O  O29  1  0.076  0.220  0.140  1.0
  O  O30  1  0.482  0.980  0.166  1.0
  O  O31  1  0.995  0.709  0.760  1.0
  O  O32  1  0.982  0.020  0.834  1.0
  O  O33  1  0.589  0.111  0.464  1.0
  O  O34  1  0.658  0.875  0.669  1.0
  O  O35  1  0.495  0.209  0.740  1.0
  O  O36  1  0.158  0.125  0.331  1.0
  O  O37  1  0.089  0.889  0.536  1.0
  O  O38  1  0.589  0.389  0.964  1.0
  O  O39  1  0.982  0.480  0.334  1.0
[/CIF]
.