AgZnLaP2 crystallizes in the trigonal P3m1 space group. La(1) is bonded to three equivalent P(1) and three equivalent P(2) atoms to form distorted LaP6 octahedra that share corners with six equivalent Ag(1)P4 tetrahedra, corners with six equivalent Zn(1)P4 tetrahedra, edges with six equivalent La(1)P6 octahedra, edges with three equivalent Ag(1)P4 tetrahedra, and edges with three equivalent Zn(1)P4 tetrahedra. Ag(1) is bonded to one P(1) and three equivalent P(2) atoms to form distorted AgP4 tetrahedra that share corners with six equivalent La(1)P6 octahedra, corners with six equivalent Ag(1)P4 tetrahedra, edges with three equivalent La(1)P6 octahedra, and edges with three equivalent Zn(1)P4 tetrahedra. The corner-sharing octahedral tilt angles range from 17-53°. Zn(1) is bonded to one P(2) and three equivalent P(1) atoms to form distorted ZnP4 tetrahedra that share corners with six equivalent La(1)P6 octahedra, corners with six equivalent Zn(1)P4 tetrahedra, edges with three equivalent La(1)P6 octahedra, and edges with three equivalent Ag(1)P4 tetrahedra. The corner-sharing octahedral tilt angles range from 18-56°. There are two inequivalent P sites. In the first P site, P(1) is bonded to three equivalent La(1), one Ag(1), and three equivalent Zn(1) atoms to form distorted PLa3Zn3Ag pentagonal bipyramids that share corners with three equivalent P(2)La3ZnAg3 pentagonal bipyramids, edges with six equivalent P(1)La3Zn3Ag pentagonal bipyramids, and edges with six equivalent P(2)La3ZnAg3 pentagonal bipyramids. In the second P site, P(2) is bonded to three equivalent La(1), three equivalent Ag(1), and one Zn(1) atom to form distorted PLa3ZnAg3 pentagonal bipyramids that share corners with three equivalent P(1)La3Zn3Ag pentagonal bipyramids, edges with six equivalent P(1)La3Zn3Ag pentagonal bipyramids, and edges with six equivalent P(2)La3ZnAg3 pentagonal bipyramids.
AgZnLaP2 crystallizes in the trigonal P3m1 space group. La(1) is bonded to three equivalent P(1) and three equivalent P(2) atoms to form distorted LaP6 octahedra that share corners with six equivalent Ag(1)P4 tetrahedra, corners with six equivalent Zn(1)P4 tetrahedra, edges with six equivalent La(1)P6 octahedra, edges with three equivalent Ag(1)P4 tetrahedra, and edges with three equivalent Zn(1)P4 tetrahedra. All La(1)-P(1) bond lengths are 3.05 Å. All La(1)-P(2) bond lengths are 2.95 Å. Ag(1) is bonded to one P(1) and three equivalent P(2) atoms to form distorted AgP4 tetrahedra that share corners with six equivalent La(1)P6 octahedra, corners with six equivalent Ag(1)P4 tetrahedra, edges with three equivalent La(1)P6 octahedra, and edges with three equivalent Zn(1)P4 tetrahedra. The corner-sharing octahedral tilt angles range from 17-53°. The Ag(1)-P(1) bond length is 2.65 Å. All Ag(1)-P(2) bond lengths are 2.55 Å. Zn(1) is bonded to one P(2) and three equivalent P(1) atoms to form distorted ZnP4 tetrahedra that share corners with six equivalent La(1)P6 octahedra, corners with six equivalent Zn(1)P4 tetrahedra, edges with three equivalent La(1)P6 octahedra, and edges with three equivalent Ag(1)P4 tetrahedra. The corner-sharing octahedral tilt angles range from 18-56°. The Zn(1)-P(2) bond length is 2.55 Å. All Zn(1)-P(1) bond lengths are 2.58 Å. There are two inequivalent P sites. In the first P site, P(1) is bonded to three equivalent La(1), one Ag(1), and three equivalent Zn(1) atoms to form distorted PLa3Zn3Ag pentagonal bipyramids that share corners with three equivalent P(2)La3ZnAg3 pentagonal bipyramids, edges with six equivalent P(1)La3Zn3Ag pentagonal bipyramids, and edges with six equivalent P(2)La3ZnAg3 pentagonal bipyramids. In the second P site, P(2) is bonded to three equivalent La(1), three equivalent Ag(1), and one Zn(1) atom to form distorted PLa3ZnAg3 pentagonal bipyramids that share corners with three equivalent P(1)La3Zn3Ag pentagonal bipyramids, edges with six equivalent P(1)La3Zn3Ag pentagonal bipyramids, and edges with six equivalent P(2)La3ZnAg3 pentagonal bipyramids.