The compound described by Sr3In3N5 crystallizes in the triclinic P-1 space group. There are three inequivalent Sr sites. In the first Sr site, Sr(1) is bonded to one N(3), one N(4), and two equivalent N(2) atoms to form distorted SrN4 trigonal pyramids that share  a cornercorner with one In(3)N4 tetrahedra, corners with two equivalent In(1)N4 tetrahedra, corners with four equivalent In(2)N4 tetrahedra,  an edgeedge with one In(3)N4 tetrahedra, and  an edgeedge with one Sr(1)N4 trigonal pyramid. In the second Sr site, Sr(2) is bonded in a 6-coordinate geometry to one N(3), one N(4), two equivalent N(1), and two equivalent N(5) atoms. In the third Sr site, Sr(3) is bonded in a 6-coordinate geometry to one N(1), one N(2), two equivalent N(3), and two equivalent N(5) atoms. There are three inequivalent In sites. In the first In site, In(1) is bonded to one N(1), one N(5), and two equivalent N(3) atoms to form distorted InN4 tetrahedra that share  a cornercorner with one In(2)N4 tetrahedra, corners with two equivalent In(3)N4 tetrahedra, corners with two equivalent Sr(1)N4 trigonal pyramids, and  an edgeedge with one In(1)N4 tetrahedra. In the second In site, In(2) is bonded to one N(1), one N(2), and two equivalent N(4) atoms to form distorted InN4 tetrahedra that share  a cornercorner with one In(1)N4 tetrahedra, corners with two equivalent In(3)N4 tetrahedra, corners with four equivalent Sr(1)N4 trigonal pyramids,  an edgeedge with one In(2)N4 tetrahedra, and  an edgeedge with one In(3)N4 tetrahedra. In the third In site, In(3) is bonded to one N(1), one N(2), one N(4), and one N(5) atom to form InN4 tetrahedra that share corners with two equivalent In(1)N4 tetrahedra, corners with two equivalent In(2)N4 tetrahedra,  a cornercorner with one Sr(1)N4 trigonal pyramid,  an edgeedge with one In(2)N4 tetrahedra, and  an edgeedge with one Sr(1)N4 trigonal pyramid. There are five inequivalent N sites. In the first N site, N(1) is bonded in a 6-coordinate geometry to one Sr(3), two equivalent Sr(2), one In(1), one In(2), and one In(3) atom. In the second N site, N(2) is bonded to one Sr(3), two equivalent Sr(1), one In(2), and one In(3) atom to form distorted NSr3In2 trigonal bipyramids that share corners with three equivalent N(4)Sr2In3 square pyramids,  an edgeedge with one N(4)Sr2In3 square pyramid, and  an edgeedge with one N(2)Sr3In2 trigonal bipyramid. In the third N site, N(3) is bonded in a 6-coordinate geometry to one Sr(1), one Sr(2), two equivalent Sr(3), and two equivalent In(1) atoms. In the fourth N site, N(4) is bonded to one Sr(1), one Sr(2), one In(3), and two equivalent In(2) atoms to form distorted NSr2In3 square pyramids that share corners with three equivalent N(2)Sr3In2 trigonal bipyramids,  an edgeedge with one N(4)Sr2In3 square pyramid, and  an edgeedge with one N(2)Sr3In2 trigonal bipyramid. In the fifth N site, N(5) is bonded in a 6-coordinate geometry to two equivalent Sr(2), two equivalent Sr(3), one In(1), and one In(3) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Sr3In3N5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.536
_cell_length_b   7.544
_cell_length_c   9.207
_cell_angle_alpha   106.277
_cell_angle_beta   107.575
_cell_angle_gamma   95.160
_symmetry_Int_Tables_number   1
_cell_volume   407.833
_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
  Sr  Sr0  1  0.806  0.421  0.601  1.0
  Sr  Sr1  1  0.194  0.579  0.399  1.0
  Sr  Sr2  1  0.672  0.867  0.887  1.0
  Sr  Sr3  1  0.328  0.133  0.113  1.0
  Sr  Sr4  1  0.653  0.632  0.192  1.0
  Sr  Sr5  1  0.347  0.368  0.808  1.0
  In  In6  1  0.899  0.309  0.965  1.0
  In  In7  1  0.101  0.691  0.035  1.0
  In  In8  1  0.724  0.948  0.562  1.0
  In  In9  1  0.276  0.052  0.438  1.0
  In  In10  1  0.151  0.855  0.719  1.0
  In  In11  1  0.849  0.145  0.281  1.0
  N  N12  1  0.989  0.092  0.796  1.0
  N  N13  1  0.011  0.908  0.204  1.0
  N  N14  1  0.863  0.694  0.498  1.0
  N  N15  1  0.137  0.306  0.502  1.0
  N  N16  1  0.755  0.530  0.877  1.0
  N  N17  1  0.245  0.470  0.123  1.0
  N  N18  1  0.408  0.909  0.614  1.0
  N  N19  1  0.592  0.091  0.386  1.0
  N  N20  1  0.319  0.760  0.916  1.0
  N  N21  1  0.681  0.240  0.084  1.0
[/CIF]
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The compound described by Sr3In3N5 crystallizes in the triclinic P-1 space group. There are three inequivalent Sr sites. In the first Sr site, Sr(1) is bonded to one N(3), one N(4), and two equivalent N(2) atoms to form distorted SrN4 trigonal pyramids that share  a cornercorner with one In(3)N4 tetrahedra, corners with two equivalent In(1)N4 tetrahedra, corners with four equivalent In(2)N4 tetrahedra,  an edgeedge with one In(3)N4 tetrahedra, and  an edgeedge with one Sr(1)N4 trigonal pyramid. In the second Sr site, Sr(2) is bonded in a 6-coordinate geometry to one N(3), one N(4), two equivalent N(1), and two equivalent N(5) atoms. In the third Sr site, Sr(3) is bonded in a 6-coordinate geometry to one N(1), one N(2), two equivalent N(3), and two equivalent N(5) atoms. There are three inequivalent In sites. In the first In site, In(1) is bonded to one N(1), one N(5), and two equivalent N(3) atoms to form distorted InN4 tetrahedra that share  a cornercorner with one In(2)N4 tetrahedra, corners with two equivalent In(3)N4 tetrahedra, corners with two equivalent Sr(1)N4 trigonal pyramids, and  an edgeedge with one In(1)N4 tetrahedra. In the second In site, In(2) is bonded to one N(1), one N(2), and two equivalent N(4) atoms to form distorted InN4 tetrahedra that share  a cornercorner with one In(1)N4 tetrahedra, corners with two equivalent In(3)N4 tetrahedra, corners with four equivalent Sr(1)N4 trigonal pyramids,  an edgeedge with one In(2)N4 tetrahedra, and  an edgeedge with one In(3)N4 tetrahedra. In the third In site, In(3) is bonded to one N(1), one N(2), one N(4), and one N(5) atom to form InN4 tetrahedra that share corners with two equivalent In(1)N4 tetrahedra, corners with two equivalent In(2)N4 tetrahedra,  a cornercorner with one Sr(1)N4 trigonal pyramid,  an edgeedge with one In(2)N4 tetrahedra, and  an edgeedge with one Sr(1)N4 trigonal pyramid. There are five inequivalent N sites. In the first N site, N(1) is bonded in a 6-coordinate geometry to one Sr(3), two equivalent Sr(2), one In(1), one In(2), and one In(3) atom. In the second N site, N(2) is bonded to one Sr(3), two equivalent Sr(1), one In(2), and one In(3) atom to form distorted NSr3In2 trigonal bipyramids that share corners with three equivalent N(4)Sr2In3 square pyramids,  an edgeedge with one N(4)Sr2In3 square pyramid, and  an edgeedge with one N(2)Sr3In2 trigonal bipyramid. In the third N site, N(3) is bonded in a 6-coordinate geometry to one Sr(1), one Sr(2), two equivalent Sr(3), and two equivalent In(1) atoms. In the fourth N site, N(4) is bonded to one Sr(1), one Sr(2), one In(3), and two equivalent In(2) atoms to form distorted NSr2In3 square pyramids that share corners with three equivalent N(2)Sr3In2 trigonal bipyramids,  an edgeedge with one N(4)Sr2In3 square pyramid, and  an edgeedge with one N(2)Sr3In2 trigonal bipyramid. In the fifth N site, N(5) is bonded in a 6-coordinate geometry to two equivalent Sr(2), two equivalent Sr(3), one In(1), and one In(3) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Sr3In3N5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.536
_cell_length_b   7.544
_cell_length_c   9.207
_cell_angle_alpha   106.277
_cell_angle_beta   107.575
_cell_angle_gamma   95.160
_symmetry_Int_Tables_number   1
_cell_volume   407.833
_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
  Sr  Sr0  1  0.806  0.421  0.601  1.0
  Sr  Sr1  1  0.194  0.579  0.399  1.0
  Sr  Sr2  1  0.672  0.867  0.887  1.0
  Sr  Sr3  1  0.328  0.133  0.113  1.0
  Sr  Sr4  1  0.653  0.632  0.192  1.0
  Sr  Sr5  1  0.347  0.368  0.808  1.0
  In  In6  1  0.899  0.309  0.965  1.0
  In  In7  1  0.101  0.691  0.035  1.0
  In  In8  1  0.724  0.948  0.562  1.0
  In  In9  1  0.276  0.052  0.438  1.0
  In  In10  1  0.151  0.855  0.719  1.0
  In  In11  1  0.849  0.145  0.281  1.0
  N  N12  1  0.989  0.092  0.796  1.0
  N  N13  1  0.011  0.908  0.204  1.0
  N  N14  1  0.863  0.694  0.498  1.0
  N  N15  1  0.137  0.306  0.502  1.0
  N  N16  1  0.755  0.530  0.877  1.0
  N  N17  1  0.245  0.470  0.123  1.0
  N  N18  1  0.408  0.909  0.614  1.0
  N  N19  1  0.592  0.091  0.386  1.0
  N  N20  1  0.319  0.760  0.916  1.0
  N  N21  1  0.681  0.240  0.084  1.0
[/CIF]
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