VMn(Fe2Si)2 is Tungsten-derived structured and crystallizes in the trigonal R-3m space group. V(1) is bonded in a distorted body-centered cubic geometry to two Fe(1,1); six equivalent Fe(2); and six equivalent Si(1) atoms. Mn(1) is bonded in a distorted body-centered cubic geometry to two equivalent Fe(2); six Fe(1,1); and six equivalent Si(1) atoms. There are three inequivalent Fe sites. In the first Fe site, Fe(1) is bonded in a body-centered cubic geometry to one V(1), three equivalent Mn(1), and four equivalent Si(1) atoms. In the second Fe site, Fe(2) is bonded in a body-centered cubic geometry to three equivalent V(1), one Mn(1), and four equivalent Si(1) atoms. In the third Fe site, Fe(1) is bonded in a body-centered cubic geometry to one V(1), three equivalent Mn(1), and four equivalent Si(1) atoms. Si(1) is bonded in a 14-coordinate geometry to three equivalent V(1), three equivalent Mn(1), four equivalent Fe(1), and four equivalent Fe(2) atoms.
VMn(Fe2Si)2 is Tungsten-derived structured and crystallizes in the trigonal R-3m space group. V(1) is bonded in a distorted body-centered cubic geometry to two Fe(1,1); six equivalent Fe(2); and six equivalent Si(1) atoms. Both V(1)-Fe(1,1) bond lengths are 2.39 Å. All V(1)-Fe(2) bond lengths are 2.42 Å. All V(1)-Si(1) bond lengths are 2.82 Å. Mn(1) is bonded in a distorted body-centered cubic geometry to two equivalent Fe(2); six Fe(1,1); and six equivalent Si(1) atoms. Both Mn(1)-Fe(2) bond lengths are 2.46 Å. All Mn(1)-Fe(1,1) bond lengths are 2.44 Å. All Mn(1)-Si(1) bond lengths are 2.79 Å. There are three inequivalent Fe sites. In the first Fe site, Fe(1) is bonded in a body-centered cubic geometry to one V(1), three equivalent Mn(1), and four equivalent Si(1) atoms. There are three shorter (2.41 Å) and one longer (2.43 Å) Fe(1)-Si(1) bond length. In the second Fe site, Fe(2) is bonded in a body-centered cubic geometry to three equivalent V(1), one Mn(1), and four equivalent Si(1) atoms. There is one shorter (2.43 Å) and three longer (2.45 Å) Fe(2)-Si(1) bond lengths. In the third Fe site, Fe(1) is bonded in a body-centered cubic geometry to one V(1), three equivalent Mn(1), and four equivalent Si(1) atoms. There are three shorter (2.41 Å) and one longer (2.43 Å) Fe(1)-Si(1) bond length. Si(1) is bonded in a 14-coordinate geometry to three equivalent V(1), three equivalent Mn(1), four equivalent Fe(1), and four equivalent Fe(2) atoms.