GdCeN2 is Caswellsilverite-like structured and crystallizes in the tetragonal P4/mmm space group. Gd(1) is bonded to two equivalent N(1) and four equivalent N(2) atoms to form GdN6 octahedra that share corners with six equivalent Gd(1)N6 octahedra, edges with four equivalent Gd(1)N6 octahedra, and edges with eight equivalent Ce(1)N6 octahedra. The corner-sharing octahedra are not tilted. Ce(1) is bonded to two equivalent N(2) and four equivalent N(1) atoms to form CeN6 octahedra that share corners with six equivalent Ce(1)N6 octahedra, edges with four equivalent Ce(1)N6 octahedra, and edges with eight equivalent Gd(1)N6 octahedra. The corner-sharing octahedra are not tilted. There are two inequivalent N sites. In the first N site, N(1) is bonded to two equivalent Gd(1) and four equivalent Ce(1) atoms to form NCe4Gd2 octahedra that share corners with six equivalent N(1)Ce4Gd2 octahedra, edges with four equivalent N(1)Ce4Gd2 octahedra, and edges with eight equivalent N(2)Ce2Gd4 octahedra. The corner-sharing octahedra are not tilted. In the second N site, N(2) is bonded to four equivalent Gd(1) and two equivalent Ce(1) atoms to form NCe2Gd4 octahedra that share corners with six equivalent N(2)Ce2Gd4 octahedra, edges with four equivalent N(2)Ce2Gd4 octahedra, and edges with eight equivalent N(1)Ce4Gd2 octahedra. The corner-sharing octahedra are not tilted.
GdCeN2 is Caswellsilverite-like structured and crystallizes in the tetragonal P4/mmm space group. Gd(1) is bonded to two equivalent N(1) and four equivalent N(2) atoms to form GdN6 octahedra that share corners with six equivalent Gd(1)N6 octahedra, edges with four equivalent Gd(1)N6 octahedra, and edges with eight equivalent Ce(1)N6 octahedra. The corner-sharing octahedra are not tilted. Both Gd(1)-N(1) bond lengths are 2.51 Å. All Gd(1)-N(2) bond lengths are 2.52 Å. Ce(1) is bonded to two equivalent N(2) and four equivalent N(1) atoms to form CeN6 octahedra that share corners with six equivalent Ce(1)N6 octahedra, edges with four equivalent Ce(1)N6 octahedra, and edges with eight equivalent Gd(1)N6 octahedra. The corner-sharing octahedra are not tilted. Both Ce(1)-N(2) bond lengths are 2.51 Å. All Ce(1)-N(1) bond lengths are 2.52 Å. There are two inequivalent N sites. In the first N site, N(1) is bonded to two equivalent Gd(1) and four equivalent Ce(1) atoms to form NCe4Gd2 octahedra that share corners with six equivalent N(1)Ce4Gd2 octahedra, edges with four equivalent N(1)Ce4Gd2 octahedra, and edges with eight equivalent N(2)Ce2Gd4 octahedra. The corner-sharing octahedra are not tilted. In the second N site, N(2) is bonded to four equivalent Gd(1) and two equivalent Ce(1) atoms to form NCe2Gd4 octahedra that share corners with six equivalent N(2)Ce2Gd4 octahedra, edges with four equivalent N(2)Ce2Gd4 octahedra, and edges with eight equivalent N(1)Ce4Gd2 octahedra. The corner-sharing octahedra are not tilted.