Fe4Co8Ga3Si is Tungsten-derived structured and crystallizes in the trigonal R-3m space group. There are two inequivalent Fe sites. In the first Fe site, Fe(1) is bonded in a distorted body-centered cubic geometry to one Co(4), three equivalent Co(1), and four equivalent Co(2) atoms. In the second Fe site, Fe(2) is bonded in a distorted body-centered cubic geometry to one Co(1); three equivalent Co(4); and four Co(3,3) atoms. There are five inequivalent Co sites. In the first Co site, Co(1) is bonded in a body-centered cubic geometry to one Fe(2), three equivalent Fe(1), one Ga(2), and three equivalent Ga(1) atoms. In the second Co site, Co(2) is bonded in a body-centered cubic geometry to four equivalent Fe(1), one Ga(1), and three equivalent Ga(2) atoms. In the third Co site, Co(3) is bonded in a distorted body-centered cubic geometry to four equivalent Fe(2), one Ga(1), and three equivalent Si(1) atoms. In the fourth Co site, Co(4) is bonded in a body-centered cubic geometry to one Fe(1), three equivalent Fe(2), three equivalent Ga(1), and one Si(1) atom. In the fifth Co site, Co(3) is bonded in a distorted body-centered cubic geometry to four equivalent Fe(2), one Ga(1), and three equivalent Si(1) atoms. There are two inequivalent Ga sites. In the first Ga site, Ga(1) is bonded in a distorted body-centered cubic geometry to one Co(2), one Co(3), three equivalent Co(1), and three equivalent Co(4) atoms. In the second Ga site, Ga(2) is bonded in a body-centered cubic geometry to two equivalent Co(1) and six equivalent Co(2) atoms. Si(1) is bonded in a distorted body-centered cubic geometry to two equivalent Co(4) and six Co(3,3) atoms.
Fe4Co8Ga3Si is Tungsten-derived structured and crystallizes in the trigonal R-3m space group. There are two inequivalent Fe sites. In the first Fe site, Fe(1) is bonded in a distorted body-centered cubic geometry to one Co(4), three equivalent Co(1), and four equivalent Co(2) atoms. The Fe(1)-Co(4) bond length is 2.52 Å. All Fe(1)-Co(1) bond lengths are 2.45 Å. There are three shorter (2.45 Å) and one longer (2.46 Å) Fe(1)-Co(2) bond length. In the second Fe site, Fe(2) is bonded in a distorted body-centered cubic geometry to one Co(1); three equivalent Co(4); and four Co(3,3) atoms. The Fe(2)-Co(1) bond length is 2.43 Å. All Fe(2)-Co(4) bond lengths are 2.42 Å. There is one shorter (2.39 Å) and three longer (2.47 Å) Fe(2)-Co(3,3) bond lengths. There are five inequivalent Co sites. In the first Co site, Co(1) is bonded in a body-centered cubic geometry to one Fe(2), three equivalent Fe(1), one Ga(2), and three equivalent Ga(1) atoms. The Co(1)-Ga(2) bond length is 2.46 Å. All Co(1)-Ga(1) bond lengths are 2.45 Å. In the second Co site, Co(2) is bonded in a body-centered cubic geometry to four equivalent Fe(1), one Ga(1), and three equivalent Ga(2) atoms. The Co(2)-Ga(1) bond length is 2.46 Å. All Co(2)-Ga(2) bond lengths are 2.45 Å. In the third Co site, Co(3) is bonded in a distorted body-centered cubic geometry to four equivalent Fe(2), one Ga(1), and three equivalent Si(1) atoms. The Co(3)-Ga(1) bond length is 2.48 Å. All Co(3)-Si(1) bond lengths are 2.43 Å. In the fourth Co site, Co(4) is bonded in a body-centered cubic geometry to one Fe(1), three equivalent Fe(2), three equivalent Ga(1), and one Si(1) atom. All Co(4)-Ga(1) bond lengths are 2.47 Å. The Co(4)-Si(1) bond length is 2.37 Å. In the fifth Co site, Co(3) is bonded in a distorted body-centered cubic geometry to four equivalent Fe(2), one Ga(1), and three equivalent Si(1) atoms. The Co(3)-Ga(1) bond length is 2.48 Å. All Co(3)-Si(1) bond lengths are 2.43 Å. There are two inequivalent Ga sites. In the first Ga site, Ga(1) is bonded in a distorted body-centered cubic geometry to one Co(2), one Co(3), three equivalent Co(1), and three equivalent Co(4) atoms. In the second Ga site, Ga(2) is bonded in a body-centered cubic geometry to two equivalent Co(1) and six equivalent Co(2) atoms. Si(1) is bonded in a distorted body-centered cubic geometry to two equivalent Co(4) and six Co(3,3) atoms.