La2GaN3 crystallizes in the monoclinic C2/c space group. There are two inequivalent La sites. In the first La site, La(1) is bonded in a 6-coordinate geometry to one N(2), one N(3), two equivalent N(1), and two equivalent N(4) atoms. In the second La site, La(2) is bonded in a 7-coordinate geometry to one N(2), one N(3), two equivalent N(4), and three equivalent N(1) atoms. Ga(1) is bonded to one N(1), one N(2), one N(3), and one N(4) atom to form corner-sharing GaN4 tetrahedra. There are four inequivalent N sites. In the first N site, N(1) is bonded in a 6-coordinate geometry to two equivalent La(1), three equivalent La(2), and one Ga(1) atom. In the second N site, N(2) is bonded in a 6-coordinate geometry to two equivalent La(1), two equivalent La(2), and two equivalent Ga(1) atoms. In the third N site, N(3) is bonded in a distorted octahedral geometry to two equivalent La(1), two equivalent La(2), and two equivalent Ga(1) atoms. In the fourth N site, N(4) is bonded in a 5-coordinate geometry to two equivalent La(1), two equivalent La(2), and one Ga(1) atom.
La2GaN3 crystallizes in the monoclinic C2/c space group. There are two inequivalent La sites. In the first La site, La(1) is bonded in a 6-coordinate geometry to one N(2), one N(3), two equivalent N(1), and two equivalent N(4) atoms. The La(1)-N(2) bond length is 2.79 Å. The La(1)-N(3) bond length is 2.75 Å. There is one shorter (2.45 Å) and one longer (2.57 Å) La(1)-N(1) bond length. There is one shorter (2.50 Å) and one longer (2.73 Å) La(1)-N(4) bond length. In the second La site, La(2) is bonded in a 7-coordinate geometry to one N(2), one N(3), two equivalent N(4), and three equivalent N(1) atoms. The La(2)-N(2) bond length is 2.73 Å. The La(2)-N(3) bond length is 2.65 Å. There is one shorter (2.49 Å) and one longer (2.59 Å) La(2)-N(4) bond length. There are a spread of La(2)-N(1) bond distances ranging from 2.57-3.12 Å. Ga(1) is bonded to one N(1), one N(2), one N(3), and one N(4) atom to form corner-sharing GaN4 tetrahedra. The Ga(1)-N(1) bond length is 1.97 Å. The Ga(1)-N(2) bond length is 1.91 Å. The Ga(1)-N(3) bond length is 1.97 Å. The Ga(1)-N(4) bond length is 1.99 Å. There are four inequivalent N sites. In the first N site, N(1) is bonded in a 6-coordinate geometry to two equivalent La(1), three equivalent La(2), and one Ga(1) atom. In the second N site, N(2) is bonded in a 6-coordinate geometry to two equivalent La(1), two equivalent La(2), and two equivalent Ga(1) atoms. In the third N site, N(3) is bonded in a distorted octahedral geometry to two equivalent La(1), two equivalent La(2), and two equivalent Ga(1) atoms. In the fourth N site, N(4) is bonded in a 5-coordinate geometry to two equivalent La(1), two equivalent La(2), and one Ga(1) atom.