The structure described by Al2Si3O10N2 is quartz (alpha)-derived structured and crystallizes in the orthorhombic Fdd2 space group. The structure consists of sixteen ammonia atoms inside a Al2Si3O10 framework. In the Al2Si3O10 framework, Al(1) is bonded to one O(1), one O(2), one O(3), and one O(4) atom to form AlO4 tetrahedra that share  a cornercorner with one Si(1)O4 tetrahedra and corners with three 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(5) atoms to form SiO4 tetrahedra that share corners with two equivalent Al(1)O4 tetrahedra and corners with two equivalent Si(2)O4 tetrahedra. 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  a cornercorner with one Si(1)O4 tetrahedra and corners with three equivalent Al(1)O4 tetrahedra. There are five inequivalent O sites. In the first O site, O(3) is bonded in a bent 150 degrees geometry to one Al(1) and one Si(2) atom. In the second O site, O(4) is bonded in a bent 150 degrees geometry to one Al(1) and one Si(2) atom. In the third O site, O(5) is bonded in a bent 150 degrees geometry to one Si(1) and one Si(2) atom. In the fourth O site, O(1) is bonded in a bent 150 degrees geometry to one Al(1) and one Si(1) atom. In the fifth O site, O(2) is bonded in a distorted bent 150 degrees geometry to one Al(1) and one Si(2) atom. is represented by the CIF card [CIF]
data_Al2Si3(NO5)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   13.319
_cell_length_b   10.014
_cell_length_c   9.955
_cell_angle_alpha   83.669
_cell_angle_beta   48.353
_cell_angle_gamma   47.978
_symmetry_Int_Tables_number   1
_cell_volume   588.212
_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
  Al  Al0  1  0.939  0.755  0.636  1.0
  Al  Al1  1  0.671  0.636  0.755  1.0
  Al  Al2  1  0.614  0.579  0.311  1.0
  Al  Al3  1  0.495  0.311  0.579  1.0
  Si  Si4  1  0.195  0.305  0.305  1.0
  Si  Si5  1  0.945  0.055  0.055  1.0
  Si  Si6  1  0.177  0.753  0.623  1.0
  Si  Si7  1  0.446  0.623  0.753  1.0
  Si  Si8  1  0.627  0.804  0.073  1.0
  Si  Si9  1  0.497  0.073  0.804  1.0
  N  N10  1  0.552  0.338  0.030  1.0
  N  N11  1  0.080  0.030  0.338  1.0
  N  N12  1  0.220  0.170  0.698  1.0
  N  N13  1  0.912  0.698  0.170  1.0
  O  O14  1  0.134  0.500  0.400  1.0
  O  O15  1  0.966  0.400  0.500  1.0
  O  O16  1  0.850  0.284  0.116  1.0
  O  O17  1  0.750  0.116  0.284  1.0
  O  O18  1  0.048  0.815  0.597  1.0
  O  O19  1  0.540  0.597  0.815  1.0
  O  O20  1  0.653  0.710  0.202  1.0
  O  O21  1  0.435  0.202  0.710  1.0
  O  O22  1  0.836  0.737  0.863  1.0
  O  O23  1  0.563  0.863  0.737  1.0
  O  O24  1  0.387  0.687  0.414  1.0
  O  O25  1  0.513  0.414  0.687  1.0
  O  O26  1  0.291  0.533  0.622  1.0
  O  O27  1  0.554  0.622  0.533  1.0
  O  O28  1  0.628  0.696  0.959  1.0
  O  O29  1  0.717  0.959  0.696  1.0
  O  O30  1  0.999  0.970  0.861  1.0
  O  O31  1  0.170  0.861  0.970  1.0
  O  O32  1  0.389  0.080  0.251  1.0
  O  O33  1  0.280  0.251  0.080  1.0
[/CIF]
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The structure described by Al2Si3O10N2 is quartz (alpha)-derived structured and crystallizes in the orthorhombic Fdd2 space group. The structure consists of sixteen ammonia atoms inside a Al2Si3O10 framework. In the Al2Si3O10 framework, Al(1) is bonded to one O(1), one O(2), one O(3), and one O(4) atom to form AlO4 tetrahedra that share  a cornercorner with one Si(1)O4 tetrahedra and corners with three 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(5) atoms to form SiO4 tetrahedra that share corners with two equivalent Al(1)O4 tetrahedra and corners with two equivalent Si(2)O4 tetrahedra. 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  a cornercorner with one Si(1)O4 tetrahedra and corners with three equivalent Al(1)O4 tetrahedra. There are five inequivalent O sites. In the first O site, O(3) is bonded in a bent 150 degrees geometry to one Al(1) and one Si(2) atom. In the second O site, O(4) is bonded in a bent 150 degrees geometry to one Al(1) and one Si(2) atom. In the third O site, O(5) is bonded in a bent 150 degrees geometry to one Si(1) and one Si(2) atom. In the fourth O site, O(1) is bonded in a bent 150 degrees geometry to one Al(1) and one Si(1) atom. In the fifth O site, O(2) is bonded in a distorted bent 150 degrees geometry to one Al(1) and one Si(2) atom. is represented by the CIF card [CIF]
data_Al2Si3(NO5)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   13.319
_cell_length_b   10.014
_cell_length_c   9.955
_cell_angle_alpha   83.669
_cell_angle_beta   48.353
_cell_angle_gamma   47.978
_symmetry_Int_Tables_number   1
_cell_volume   588.212
_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
  Al  Al0  1  0.939  0.755  0.636  1.0
  Al  Al1  1  0.671  0.636  0.755  1.0
  Al  Al2  1  0.614  0.579  0.311  1.0
  Al  Al3  1  0.495  0.311  0.579  1.0
  Si  Si4  1  0.195  0.305  0.305  1.0
  Si  Si5  1  0.945  0.055  0.055  1.0
  Si  Si6  1  0.177  0.753  0.623  1.0
  Si  Si7  1  0.446  0.623  0.753  1.0
  Si  Si8  1  0.627  0.804  0.073  1.0
  Si  Si9  1  0.497  0.073  0.804  1.0
  N  N10  1  0.552  0.338  0.030  1.0
  N  N11  1  0.080  0.030  0.338  1.0
  N  N12  1  0.220  0.170  0.698  1.0
  N  N13  1  0.912  0.698  0.170  1.0
  O  O14  1  0.134  0.500  0.400  1.0
  O  O15  1  0.966  0.400  0.500  1.0
  O  O16  1  0.850  0.284  0.116  1.0
  O  O17  1  0.750  0.116  0.284  1.0
  O  O18  1  0.048  0.815  0.597  1.0
  O  O19  1  0.540  0.597  0.815  1.0
  O  O20  1  0.653  0.710  0.202  1.0
  O  O21  1  0.435  0.202  0.710  1.0
  O  O22  1  0.836  0.737  0.863  1.0
  O  O23  1  0.563  0.863  0.737  1.0
  O  O24  1  0.387  0.687  0.414  1.0
  O  O25  1  0.513  0.414  0.687  1.0
  O  O26  1  0.291  0.533  0.622  1.0
  O  O27  1  0.554  0.622  0.533  1.0
  O  O28  1  0.628  0.696  0.959  1.0
  O  O29  1  0.717  0.959  0.696  1.0
  O  O30  1  0.999  0.970  0.861  1.0
  O  O31  1  0.170  0.861  0.970  1.0
  O  O32  1  0.389  0.080  0.251  1.0
  O  O33  1  0.280  0.251  0.080  1.0
[/CIF]
.