AgSi2N3 crystallizes in the trigonal P3_121 space group. Ag(1) is bonded in a linear geometry to two equivalent N(2) atoms. Si(1) is bonded in a 6-coordinate geometry to three equivalent N(1) and three equivalent N(2) atoms. There are two inequivalent N sites. In the first N site, N(1) is bonded in a 6-coordinate geometry to six equivalent Si(1) atoms. In the second N site, N(2) is bonded to one Ag(1) and three equivalent Si(1) atoms to form corner-sharing NSi3Ag tetrahedra.
AgSi2N3 crystallizes in the trigonal P3_121 space group. Ag(1) is bonded in a linear geometry to two equivalent N(2) atoms. Both Ag(1)-N(2) bond lengths are 2.19 Å. Si(1) is bonded in a 6-coordinate geometry to three equivalent N(1) and three equivalent N(2) atoms. There are a spread of Si(1)-N(1) bond distances ranging from 1.85-2.43 Å. There is one shorter (1.78 Å) and two longer (1.84 Å) Si(1)-N(2) bond lengths. There are two inequivalent N sites. In the first N site, N(1) is bonded in a 6-coordinate geometry to six equivalent Si(1) atoms. In the second N site, N(2) is bonded to one Ag(1) and three equivalent Si(1) atoms to form corner-sharing NSi3Ag tetrahedra.