Mn4Co11Ge5 is Heusler-like structured and crystallizes in the trigonal R-3m space group. 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(2), one Co(4), three equivalent Co(1), three equivalent Co(5), and three equivalent Ge(1) atoms. In the second Mn site, Mn(2) is bonded in a distorted body-centered cubic geometry to one Co(1), three equivalent Co(2), four equivalent Co(3), three equivalent Ge(1), and three equivalent Ge(2) atoms. There are seven inequivalent Co sites. In the first Co site, Co(1) is bonded in a body-centered cubic geometry to one Mn(2), three equivalent Mn(1), one Ge(3), and three equivalent Ge(1) atoms. In the second Co site, Co(2) is bonded in a body-centered cubic geometry to one Mn(1), three equivalent Mn(2), one Ge(2), and three equivalent Ge(1) atoms. In the third Co site, Co(3) is bonded in a body-centered cubic geometry to four equivalent Mn(2), one Ge(1), and three equivalent Ge(2) atoms. In the fourth Co site, Co(4) is bonded in a 8-coordinate geometry to one Mn(1), three equivalent Co(6), and four equivalent Ge(3) atoms. In the fifth Co site, Co(5) is bonded in a distorted body-centered cubic geometry to three equivalent Mn(1), one Co(6), one Ge(1), and three equivalent Ge(3) atoms. In the sixth Co site, Co(6) is bonded in a 14-coordinate geometry to two equivalent Co(5), six equivalent Co(4), and six equivalent Ge(3) atoms. In the seventh Co site, Co(3) is bonded in a body-centered cubic geometry to four equivalent Mn(2), one Ge(1), and three equivalent Ge(2) atoms. There are three inequivalent Ge sites. In the first Ge site, Ge(1) is bonded in a distorted body-centered cubic geometry to three equivalent Mn(1), three equivalent Mn(2), one Co(3), one Co(5), three equivalent Co(1), and three equivalent Co(2) atoms. In the second Ge site, Ge(2) is bonded in a distorted body-centered cubic geometry to six equivalent Mn(2), two equivalent Co(2), and six equivalent Co(3) atoms. In the third Ge site, Ge(3) is bonded in a distorted body-centered cubic geometry to one Co(1), three equivalent Co(5), three equivalent Co(6), and four equivalent Co(4) atoms.
Mn4Co11Ge5 is Heusler-like structured and crystallizes in the trigonal R-3m space group. 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(2), one Co(4), three equivalent Co(1), three equivalent Co(5), and three equivalent Ge(1) atoms. The Mn(1)-Co(2) bond length is 2.48 Å. The Mn(1)-Co(4) bond length is 2.48 Å. All Mn(1)-Co(1) bond lengths are 2.48 Å. All Mn(1)-Co(5) bond lengths are 2.48 Å. All Mn(1)-Ge(1) bond lengths are 2.87 Å. In the second Mn site, Mn(2) is bonded in a distorted body-centered cubic geometry to one Co(1), three equivalent Co(2), four equivalent Co(3), three equivalent Ge(1), and three equivalent Ge(2) atoms. The Mn(2)-Co(1) bond length is 2.48 Å. All Mn(2)-Co(2) bond lengths are 2.48 Å. All Mn(2)-Co(3) bond lengths are 2.48 Å. All Mn(2)-Ge(1) bond lengths are 2.87 Å. All Mn(2)-Ge(2) bond lengths are 2.86 Å. There are seven inequivalent Co sites. In the first Co site, Co(1) is bonded in a body-centered cubic geometry to one Mn(2), three equivalent Mn(1), one Ge(3), and three equivalent Ge(1) atoms. The Co(1)-Ge(3) bond length is 2.49 Å. All Co(1)-Ge(1) bond lengths are 2.48 Å. In the second Co site, Co(2) is bonded in a body-centered cubic geometry to one Mn(1), three equivalent Mn(2), one Ge(2), and three equivalent Ge(1) atoms. The Co(2)-Ge(2) bond length is 2.48 Å. All Co(2)-Ge(1) bond lengths are 2.48 Å. In the third Co site, Co(3) is bonded in a body-centered cubic geometry to four equivalent Mn(2), one Ge(1), and three equivalent Ge(2) atoms. The Co(3)-Ge(1) bond length is 2.48 Å. All Co(3)-Ge(2) bond lengths are 2.48 Å. In the fourth Co site, Co(4) is bonded in a 8-coordinate geometry to one Mn(1), three equivalent Co(6), and four equivalent Ge(3) atoms. All Co(4)-Co(6) bond lengths are 2.48 Å. There is one shorter (2.46 Å) and three longer (2.48 Å) Co(4)-Ge(3) bond lengths. In the fifth Co site, Co(5) is bonded in a distorted body-centered cubic geometry to three equivalent Mn(1), one Co(6), one Ge(1), and three equivalent Ge(3) atoms. The Co(5)-Co(6) bond length is 2.47 Å. The Co(5)-Ge(1) bond length is 2.48 Å. All Co(5)-Ge(3) bond lengths are 2.48 Å. In the sixth Co site, Co(6) is bonded in a 14-coordinate geometry to two equivalent Co(5), six equivalent Co(4), and six equivalent Ge(3) atoms. All Co(6)-Ge(3) bond lengths are 2.86 Å. In the seventh Co site, Co(3) is bonded in a body-centered cubic geometry to four equivalent Mn(2), one Ge(1), and three equivalent Ge(2) atoms. All Co(3)-Mn(2) bond lengths are 2.48 Å. The Co(3)-Ge(1) bond length is 2.48 Å. All Co(3)-Ge(2) bond lengths are 2.48 Å. There are three inequivalent Ge sites. In the first Ge site, Ge(1) is bonded in a distorted body-centered cubic geometry to three equivalent Mn(1), three equivalent Mn(2), one Co(3), one Co(5), three equivalent Co(1), and three equivalent Co(2) atoms. In the second Ge site, Ge(2) is bonded in a distorted body-centered cubic geometry to six equivalent Mn(2), two equivalent Co(2), and six equivalent Co(3) atoms. In the third Ge site, Ge(3) is bonded in a distorted body-centered cubic geometry to one Co(1), three equivalent Co(5), three equivalent Co(6), and four equivalent Co(4) atoms.