The structure described by Cs3LaN18 crystallizes in the triclinic P-1 space group. There are three inequivalent Cs sites. In the first Cs site, Cs(1) is bonded in a 5-coordinate geometry to one N(1), one N(13), one N(19), and two equivalent N(10) atoms. In the second Cs site, Cs(2) is bonded in a 15-coordinate geometry to one N(10), one N(12), one N(13), one N(15), one N(16), one N(18), one N(3), one N(8), one N(9), two equivalent N(11), two equivalent N(14), and two equivalent N(19) atoms. In the third Cs site, Cs(3) is bonded in a 8-coordinate geometry to one N(1), one N(10), one N(13), one N(16), one N(19), one N(8), and two equivalent N(7) atoms. La(1) is bonded in a 9-coordinate geometry to one N(1), one N(11), one N(14), one N(16), one N(17), one N(3), one N(8), and two equivalent N(5) atoms. There are nineteen inequivalent N sites. In the first N site, N(1) is bonded to one Cs(1), one Cs(3), one La(1), and one N(2) atom to form distorted corner-sharing NCs2LaN trigonal pyramids. In the second N site, N(2) is bonded in a linear geometry to two equivalent N(1) atoms. In the third N site, N(3) is bonded in a 2-coordinate geometry to one Cs(2), one La(1), and one N(4) atom. In the fourth N site, N(4) is bonded in a linear geometry to two equivalent N(3) atoms. In the fifth N site, N(5) is bonded in a distorted trigonal planar geometry to two equivalent La(1) and one N(6) atom. In the sixth N site, N(6) is bonded in a linear geometry to one N(5) and one N(7) atom. In the seventh N site, N(7) is bonded in a distorted trigonal planar geometry to two equivalent Cs(3) and one N(6) atom. In the eighth N site, N(8) is bonded in a 3-coordinate geometry to one Cs(2), one Cs(3), one La(1), and one N(9) atom. In the ninth N site, N(9) is bonded in a 2-coordinate geometry to one Cs(2), one N(10), and one N(8) atom. In the tenth N site, N(10) is bonded in a 5-coordinate geometry to one Cs(2), one Cs(3), two equivalent Cs(1), and one N(9) atom. In the eleventh N site, N(11) is bonded in a 3-coordinate geometry to two equivalent Cs(2), one La(1), and one N(12) atom. In the twelfth N site, N(12) is bonded in a distorted linear geometry to one Cs(2), one N(11), and one N(13) atom. In the thirteenth N site, N(13) is bonded in a 3-coordinate geometry to one Cs(1), one Cs(2), one Cs(3), and one N(12) atom. In the fourteenth N site, N(14) is bonded in a 3-coordinate geometry to two equivalent Cs(2), one La(1), and one N(15) atom. In the fifteenth N site, N(15) is bonded in a distorted linear geometry to one Cs(2), one N(14), and one N(16) atom. In the sixteenth N site, N(16) is bonded in a 3-coordinate geometry to one Cs(2), one Cs(3), one La(1), and one N(15) atom. In the seventeenth N site, N(17) is bonded in a distorted bent 150 degrees geometry to one La(1) and one N(18) atom. In the eighteenth N site, N(18) is bonded in a distorted linear geometry to one Cs(2), one N(17), and one N(19) atom. In the nineteenth N site, N(19) is bonded in a 3-coordinate geometry to one Cs(1), one Cs(3), two equivalent Cs(2), and one N(18) atom. is represented by the CIF file [CIF]
data_Cs3LaN18
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.519
_cell_length_b   9.755
_cell_length_c   10.178
_cell_angle_alpha   97.757
_cell_angle_beta   110.201
_cell_angle_gamma   102.462
_symmetry_Int_Tables_number   1
_cell_volume   843.100
_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
  Cs  Cs0  1  0.729  0.912  0.863  1.0
  Cs  Cs1  1  0.271  0.088  0.137  1.0
  Cs  Cs2  1  0.773  0.531  0.115  1.0
  Cs  Cs3  1  0.227  0.469  0.885  1.0
  Cs  Cs4  1  0.809  0.090  0.332  1.0
  Cs  Cs5  1  0.191  0.910  0.668  1.0
  La  La6  1  0.680  0.387  0.623  1.0
  La  La7  1  0.320  0.613  0.377  1.0
  N  N8  1  0.524  0.112  0.467  1.0
  N  N9  1  0.476  0.888  0.533  1.0
  N  N10  1  0.500  0.000  0.500  1.0
  N  N11  1  0.940  0.513  0.584  1.0
  N  N12  1  0.060  0.487  0.416  1.0
  N  N13  1  0.000  0.500  0.500  1.0
  N  N14  1  0.631  0.632  0.534  1.0
  N  N15  1  0.369  0.368  0.466  1.0
  N  N16  1  0.723  0.717  0.507  1.0
  N  N17  1  0.277  0.283  0.493  1.0
  N  N18  1  0.811  0.799  0.479  1.0
  N  N19  1  0.189  0.201  0.521  1.0
  N  N20  1  0.866  0.230  0.668  1.0
  N  N21  1  0.134  0.770  0.332  1.0
  N  N22  1  0.947  0.171  0.744  1.0
  N  N23  1  0.053  0.829  0.256  1.0
  N  N24  1  0.029  0.115  0.820  1.0
  N  N25  1  0.971  0.885  0.180  1.0
  N  N26  1  0.883  0.569  0.855  1.0
  N  N27  1  0.117  0.431  0.145  1.0
  N  N28  1  0.986  0.676  0.879  1.0
  N  N29  1  0.014  0.324  0.121  1.0
  N  N30  1  0.089  0.779  0.903  1.0
  N  N31  1  0.911  0.221  0.097  1.0
  N  N32  1  0.541  0.528  0.786  1.0
  N  N33  1  0.459  0.472  0.214  1.0
  N  N34  1  0.455  0.591  0.724  1.0
  N  N35  1  0.545  0.409  0.276  1.0
  N  N36  1  0.367  0.652  0.662  1.0
  N  N37  1  0.633  0.348  0.338  1.0
  N  N38  1  0.606  0.236  0.787  1.0
  N  N39  1  0.394  0.764  0.213  1.0
  N  N40  1  0.534  0.216  0.861  1.0
  N  N41  1  0.466  0.784  0.139  1.0
  N  N42  1  0.463  0.194  0.934  1.0
  N  N43  1  0.537  0.806  0.066  1.0
[/CIF]
.
The structure described by Cs3LaN18 crystallizes in the triclinic P-1 space group. There are three inequivalent Cs sites. In the first Cs site, Cs(1) is bonded in a 5-coordinate geometry to one N(1), one N(13), one N(19), and two equivalent N(10) atoms. In the second Cs site, Cs(2) is bonded in a 15-coordinate geometry to one N(10), one N(12), one N(13), one N(15), one N(16), one N(18), one N(3), one N(8), one N(9), two equivalent N(11), two equivalent N(14), and two equivalent N(19) atoms. In the third Cs site, Cs(3) is bonded in a 8-coordinate geometry to one N(1), one N(10), one N(13), one N(16), one N(19), one N(8), and two equivalent N(7) atoms. La(1) is bonded in a 9-coordinate geometry to one N(1), one N(11), one N(14), one N(16), one N(17), one N(3), one N(8), and two equivalent N(5) atoms. There are nineteen inequivalent N sites. In the first N site, N(1) is bonded to one Cs(1), one Cs(3), one La(1), and one N(2) atom to form distorted corner-sharing NCs2LaN trigonal pyramids. In the second N site, N(2) is bonded in a linear geometry to two equivalent N(1) atoms. In the third N site, N(3) is bonded in a 2-coordinate geometry to one Cs(2), one La(1), and one N(4) atom. In the fourth N site, N(4) is bonded in a linear geometry to two equivalent N(3) atoms. In the fifth N site, N(5) is bonded in a distorted trigonal planar geometry to two equivalent La(1) and one N(6) atom. In the sixth N site, N(6) is bonded in a linear geometry to one N(5) and one N(7) atom. In the seventh N site, N(7) is bonded in a distorted trigonal planar geometry to two equivalent Cs(3) and one N(6) atom. In the eighth N site, N(8) is bonded in a 3-coordinate geometry to one Cs(2), one Cs(3), one La(1), and one N(9) atom. In the ninth N site, N(9) is bonded in a 2-coordinate geometry to one Cs(2), one N(10), and one N(8) atom. In the tenth N site, N(10) is bonded in a 5-coordinate geometry to one Cs(2), one Cs(3), two equivalent Cs(1), and one N(9) atom. In the eleventh N site, N(11) is bonded in a 3-coordinate geometry to two equivalent Cs(2), one La(1), and one N(12) atom. In the twelfth N site, N(12) is bonded in a distorted linear geometry to one Cs(2), one N(11), and one N(13) atom. In the thirteenth N site, N(13) is bonded in a 3-coordinate geometry to one Cs(1), one Cs(2), one Cs(3), and one N(12) atom. In the fourteenth N site, N(14) is bonded in a 3-coordinate geometry to two equivalent Cs(2), one La(1), and one N(15) atom. In the fifteenth N site, N(15) is bonded in a distorted linear geometry to one Cs(2), one N(14), and one N(16) atom. In the sixteenth N site, N(16) is bonded in a 3-coordinate geometry to one Cs(2), one Cs(3), one La(1), and one N(15) atom. In the seventeenth N site, N(17) is bonded in a distorted bent 150 degrees geometry to one La(1) and one N(18) atom. In the eighteenth N site, N(18) is bonded in a distorted linear geometry to one Cs(2), one N(17), and one N(19) atom. In the nineteenth N site, N(19) is bonded in a 3-coordinate geometry to one Cs(1), one Cs(3), two equivalent Cs(2), and one N(18) atom. is represented by the CIF file [CIF]
data_Cs3LaN18
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.519
_cell_length_b   9.755
_cell_length_c   10.178
_cell_angle_alpha   97.757
_cell_angle_beta   110.201
_cell_angle_gamma   102.462
_symmetry_Int_Tables_number   1
_cell_volume   843.100
_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
  Cs  Cs0  1  0.729  0.912  0.863  1.0
  Cs  Cs1  1  0.271  0.088  0.137  1.0
  Cs  Cs2  1  0.773  0.531  0.115  1.0
  Cs  Cs3  1  0.227  0.469  0.885  1.0
  Cs  Cs4  1  0.809  0.090  0.332  1.0
  Cs  Cs5  1  0.191  0.910  0.668  1.0
  La  La6  1  0.680  0.387  0.623  1.0
  La  La7  1  0.320  0.613  0.377  1.0
  N  N8  1  0.524  0.112  0.467  1.0
  N  N9  1  0.476  0.888  0.533  1.0
  N  N10  1  0.500  0.000  0.500  1.0
  N  N11  1  0.940  0.513  0.584  1.0
  N  N12  1  0.060  0.487  0.416  1.0
  N  N13  1  0.000  0.500  0.500  1.0
  N  N14  1  0.631  0.632  0.534  1.0
  N  N15  1  0.369  0.368  0.466  1.0
  N  N16  1  0.723  0.717  0.507  1.0
  N  N17  1  0.277  0.283  0.493  1.0
  N  N18  1  0.811  0.799  0.479  1.0
  N  N19  1  0.189  0.201  0.521  1.0
  N  N20  1  0.866  0.230  0.668  1.0
  N  N21  1  0.134  0.770  0.332  1.0
  N  N22  1  0.947  0.171  0.744  1.0
  N  N23  1  0.053  0.829  0.256  1.0
  N  N24  1  0.029  0.115  0.820  1.0
  N  N25  1  0.971  0.885  0.180  1.0
  N  N26  1  0.883  0.569  0.855  1.0
  N  N27  1  0.117  0.431  0.145  1.0
  N  N28  1  0.986  0.676  0.879  1.0
  N  N29  1  0.014  0.324  0.121  1.0
  N  N30  1  0.089  0.779  0.903  1.0
  N  N31  1  0.911  0.221  0.097  1.0
  N  N32  1  0.541  0.528  0.786  1.0
  N  N33  1  0.459  0.472  0.214  1.0
  N  N34  1  0.455  0.591  0.724  1.0
  N  N35  1  0.545  0.409  0.276  1.0
  N  N36  1  0.367  0.652  0.662  1.0
  N  N37  1  0.633  0.348  0.338  1.0
  N  N38  1  0.606  0.236  0.787  1.0
  N  N39  1  0.394  0.764  0.213  1.0
  N  N40  1  0.534  0.216  0.861  1.0
  N  N41  1  0.466  0.784  0.139  1.0
  N  N42  1  0.463  0.194  0.934  1.0
  N  N43  1  0.537  0.806  0.066  1.0
[/CIF]
.