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.
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. The Cs(1)-N(1) bond length is 3.34 Å. The Cs(1)-N(13) bond length is 3.27 Å. The Cs(1)-N(19) bond length is 3.32 Å. There is one shorter (3.31 Å) and one longer (3.33 Å) Cs(1)-N(10) bond length. 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. The Cs(2)-N(10) bond length is 3.41 Å. The Cs(2)-N(12) bond length is 3.35 Å. The Cs(2)-N(13) bond length is 3.56 Å. The Cs(2)-N(15) bond length is 3.26 Å. The Cs(2)-N(16) bond length is 3.50 Å. The Cs(2)-N(18) bond length is 3.47 Å. The Cs(2)-N(3) bond length is 3.49 Å. The Cs(2)-N(8) bond length is 3.47 Å. The Cs(2)-N(9) bond length is 3.24 Å. There is one shorter (3.20 Å) and one longer (3.54 Å) Cs(2)-N(11) bond length. There is one shorter (3.31 Å) and one longer (3.43 Å) Cs(2)-N(14) bond length. There is one shorter (3.65 Å) and one longer (3.83 Å) Cs(2)-N(19) bond length. 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. The Cs(3)-N(1) bond length is 3.47 Å. The Cs(3)-N(10) bond length is 3.29 Å. The Cs(3)-N(13) bond length is 3.18 Å. The Cs(3)-N(16) bond length is 3.32 Å. The Cs(3)-N(19) bond length is 3.43 Å. The Cs(3)-N(8) bond length is 3.32 Å. There is one shorter (3.30 Å) and one longer (3.38 Å) Cs(3)-N(7) bond length. 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. The La(1)-N(1) bond length is 2.73 Å. The La(1)-N(11) bond length is 2.59 Å. The La(1)-N(14) bond length is 2.85 Å. The La(1)-N(16) bond length is 2.74 Å. The La(1)-N(17) bond length is 2.55 Å. The La(1)-N(3) bond length is 2.70 Å. The La(1)-N(8) bond length is 2.55 Å. There is one shorter (2.74 Å) and one longer (2.78 Å) La(1)-N(5) bond length. 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. The N(1)-N(2) bond length is 1.18 Å. 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. The N(3)-N(4) bond length is 1.18 Å. 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. The N(5)-N(6) bond length is 1.20 Å. In the sixth N site, N(6) is bonded in a linear geometry to one N(5) and one N(7) atom. The N(6)-N(7) bond length is 1.17 Å. 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. The N(8)-N(9) bond length is 1.19 Å. 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. The N(9)-N(10) bond length is 1.18 Å. 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. The N(11)-N(12) bond length is 1.20 Å. 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. The N(12)-N(13) bond length is 1.18 Å. 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. The N(14)-N(15) bond length is 1.18 Å. 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. The N(15)-N(16) bond length is 1.19 Å. 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. The N(17)-N(18) bond length is 1.19 Å. 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. The N(18)-N(19) bond length is 1.18 Å. 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.