Cr5Si3 crystallizes in the tetragonal I4/mcm space group. There are two inequivalent Cr sites. In the first Cr site, Cr(1) is bonded in a 6-coordinate geometry to two equivalent Cr(1) and four equivalent Si(2) atoms. In the second Cr site, Cr(2) is bonded in a 6-coordinate geometry to two equivalent Si(1) and four equivalent Si(2) atoms. There are two inequivalent Si sites. In the first Si site, Si(1) is bonded in a 10-coordinate geometry to eight equivalent Cr(2) and two equivalent Si(1) atoms. In the second Si site, Si(2) is bonded in a 10-coordinate geometry to two equivalent Cr(1) and eight equivalent Cr(2) atoms.
Cr5Si3 crystallizes in the tetragonal I4/mcm space group. There are two inequivalent Cr sites. In the first Cr site, Cr(1) is bonded in a 6-coordinate geometry to two equivalent Cr(1) and four equivalent Si(2) atoms. Both Cr(1)-Cr(1) bond lengths are 2.27 Å. All Cr(1)-Si(2) bond lengths are 2.42 Å. In the second Cr site, Cr(2) is bonded in a 6-coordinate geometry to two equivalent Si(1) and four equivalent Si(2) atoms. Both Cr(2)-Si(1) bond lengths are 2.44 Å. There are a spread of Cr(2)-Si(2) bond distances ranging from 2.37-2.59 Å. There are two inequivalent Si sites. In the first Si site, Si(1) is bonded in a 10-coordinate geometry to eight equivalent Cr(2) and two equivalent Si(1) atoms. Both Si(1)-Si(1) bond lengths are 2.27 Å. In the second Si site, Si(2) is bonded in a 10-coordinate geometry to two equivalent Cr(1) and eight equivalent Cr(2) atoms.