CrMn4(Co2Si)5 is Tungsten-derived structured and crystallizes in the trigonal R-3m space group. Cr(1) is bonded in a distorted body-centered cubic geometry to two equivalent Co(1), six equivalent Co(4), and six equivalent Si(1) atoms. There are two inequivalent Mn sites. In the first Mn site, Mn(1) is bonded in a distorted body-centered cubic geometry to one Co(3), one Co(4), three equivalent Co(1), three equivalent Co(5), three equivalent Si(1), and three equivalent Si(3) atoms. In the second Mn site, Mn(2) is bonded in a distorted body-centered cubic geometry to one Co(5), three equivalent Co(3), four equivalent Co(2), three equivalent Si(2), and three equivalent Si(3) atoms. There are six inequivalent Co sites. In the first Co site, Co(1) is bonded in a distorted body-centered cubic geometry to one Cr(1), three equivalent Mn(1), one Si(3), and three equivalent Si(1) atoms. In the second Co site, Co(2) is bonded in a distorted body-centered cubic geometry to four equivalent Mn(2), one Si(3), and three equivalent Si(2) atoms. In the third Co site, Co(3) is bonded in a distorted body-centered cubic geometry to one Mn(1), three equivalent Mn(2), one Si(2), and three equivalent Si(3) atoms. In the fourth Co site, Co(4) is bonded in a distorted body-centered cubic geometry to three equivalent Cr(1), one Mn(1), and four equivalent Si(1) atoms. In the fifth Co site, Co(5) is bonded in a distorted body-centered cubic geometry to one Mn(2), three equivalent Mn(1), one Si(1), and three equivalent Si(3) atoms. In the sixth Co site, Co(4) is bonded in a distorted body-centered cubic geometry to three equivalent Cr(1), one Mn(1), and four equivalent Si(1) atoms. There are three inequivalent Si sites. In the first Si site, Si(1) is bonded in a 14-coordinate geometry to three equivalent Cr(1), three equivalent Mn(1), one Co(5), three equivalent Co(1), and four equivalent Co(4) atoms. In the second Si site, Si(2) is bonded in a 14-coordinate geometry to six equivalent Mn(2), two equivalent Co(3), and six equivalent Co(2) atoms. In the third Si site, Si(3) is bonded in a 14-coordinate geometry to three equivalent Mn(1), three equivalent Mn(2), one Co(1), one Co(2), three equivalent Co(3), and three equivalent Co(5) atoms.
CrMn4(Co2Si)5 is Tungsten-derived structured and crystallizes in the trigonal R-3m space group. Cr(1) is bonded in a distorted body-centered cubic geometry to two equivalent Co(1), six equivalent Co(4), and six equivalent Si(1) atoms. Both Cr(1)-Co(1) bond lengths are 2.45 Å. All Cr(1)-Co(4) bond lengths are 2.44 Å. All Cr(1)-Si(1) bond lengths are 2.82 Å. There are two inequivalent Mn sites. In the first Mn site, Mn(1) is bonded in a distorted body-centered cubic geometry to one Co(3), one Co(4), three equivalent Co(1), three equivalent Co(5), three equivalent Si(1), and three equivalent Si(3) atoms. The Mn(1)-Co(3) bond length is 2.44 Å. The Mn(1)-Co(4) bond length is 2.44 Å. All Mn(1)-Co(1) bond lengths are 2.44 Å. All Mn(1)-Co(5) bond lengths are 2.44 Å. All Mn(1)-Si(1) bond lengths are 2.82 Å. All Mn(1)-Si(3) bond lengths are 2.82 Å. In the second Mn site, Mn(2) is bonded in a distorted body-centered cubic geometry to one Co(5), three equivalent Co(3), four equivalent Co(2), three equivalent Si(2), and three equivalent Si(3) atoms. The Mn(2)-Co(5) bond length is 2.45 Å. All Mn(2)-Co(3) bond lengths are 2.44 Å. All Mn(2)-Co(2) bond lengths are 2.44 Å. All Mn(2)-Si(2) bond lengths are 2.82 Å. All Mn(2)-Si(3) bond lengths are 2.82 Å. There are six inequivalent Co sites. In the first Co site, Co(1) is bonded in a distorted body-centered cubic geometry to one Cr(1), three equivalent Mn(1), one Si(3), and three equivalent Si(1) atoms. The Co(1)-Si(3) bond length is 2.44 Å. All Co(1)-Si(1) bond lengths are 2.44 Å. In the second Co site, Co(2) is bonded in a distorted body-centered cubic geometry to four equivalent Mn(2), one Si(3), and three equivalent Si(2) atoms. The Co(2)-Si(3) bond length is 2.44 Å. All Co(2)-Si(2) bond lengths are 2.44 Å. In the third Co site, Co(3) is bonded in a distorted body-centered cubic geometry to one Mn(1), three equivalent Mn(2), one Si(2), and three equivalent Si(3) atoms. The Co(3)-Si(2) bond length is 2.44 Å. All Co(3)-Si(3) bond lengths are 2.44 Å. In the fourth Co site, Co(4) is bonded in a distorted body-centered cubic geometry to three equivalent Cr(1), one Mn(1), and four equivalent Si(1) atoms. All Co(4)-Si(1) bond lengths are 2.44 Å. In the fifth Co site, Co(5) is bonded in a distorted body-centered cubic geometry to one Mn(2), three equivalent Mn(1), one Si(1), and three equivalent Si(3) atoms. The Co(5)-Si(1) bond length is 2.45 Å. All Co(5)-Si(3) bond lengths are 2.44 Å. In the sixth Co site, Co(4) is bonded in a distorted body-centered cubic geometry to three equivalent Cr(1), one Mn(1), and four equivalent Si(1) atoms. All Co(4)-Cr(1) bond lengths are 2.44 Å. The Co(4)-Mn(1) bond length is 2.44 Å. All Co(4)-Si(1) bond lengths are 2.44 Å. There are three inequivalent Si sites. In the first Si site, Si(1) is bonded in a 14-coordinate geometry to three equivalent Cr(1), three equivalent Mn(1), one Co(5), three equivalent Co(1), and four equivalent Co(4) atoms. In the second Si site, Si(2) is bonded in a 14-coordinate geometry to six equivalent Mn(2), two equivalent Co(3), and six equivalent Co(2) atoms. In the third Si site, Si(3) is bonded in a 14-coordinate geometry to three equivalent Mn(1), three equivalent Mn(2), one Co(1), one Co(2), three equivalent Co(3), and three equivalent Co(5) atoms.