Fe3Ni3Ge2 is Tungsten-derived structured and crystallizes in the trigonal R3m space group. There are three inequivalent Fe sites. In the first Fe site, Fe(1) is bonded in a distorted body-centered cubic geometry to one Ni(3), three equivalent Ni(1), three equivalent Ni(2), one Ge(2), and three equivalent Ge(1) atoms. In the second Fe site, Fe(2) is bonded in a distorted body-centered cubic geometry to one Ni(2), three equivalent Ni(1), three equivalent Ni(3), one Ge(1), and three equivalent Ge(2) atoms. In the third Fe site, Fe(3) is bonded in a body-centered cubic geometry to one Ni(3), three equivalent Ni(2), one Ge(1), and three equivalent Ge(2) atoms. There are three inequivalent Ni sites. In the first Ni site, Ni(1) is bonded in a 14-coordinate geometry to three equivalent Fe(1), three equivalent Fe(2), one Ni(2), three equivalent Ni(3), one Ge(2), and three equivalent Ge(1) atoms. In the second Ni site, Ni(2) is bonded in a 14-coordinate geometry to one Fe(2), three equivalent Fe(1), three equivalent Fe(3), one Ni(1), three equivalent Ge(1), and three equivalent Ge(2) atoms. In the third Ni site, Ni(3) is bonded in a 14-coordinate geometry to one Fe(1), one Fe(3), three equivalent Fe(2), three equivalent Ni(1), three equivalent Ge(1), and three equivalent Ge(2) atoms. There are two inequivalent Ge sites. In the first Ge site, Ge(1) is bonded in a distorted body-centered cubic geometry to one Fe(2), one Fe(3), three equivalent Fe(1), three equivalent Ni(1), three equivalent Ni(2), and three equivalent Ni(3) atoms. In the second Ge site, Ge(2) is bonded in a distorted body-centered cubic geometry to one Fe(1), three equivalent Fe(2), three equivalent Fe(3), one Ni(1), three equivalent Ni(2), and three equivalent Ni(3) atoms.
Fe3Ni3Ge2 is Tungsten-derived structured and crystallizes in the trigonal R3m space group. There are three inequivalent Fe sites. In the first Fe site, Fe(1) is bonded in a distorted body-centered cubic geometry to one Ni(3), three equivalent Ni(1), three equivalent Ni(2), one Ge(2), and three equivalent Ge(1) atoms. The Fe(1)-Ni(3) bond length is 2.47 Å. All Fe(1)-Ni(1) bond lengths are 2.86 Å. All Fe(1)-Ni(2) bond lengths are 2.47 Å. The Fe(1)-Ge(2) bond length is 2.48 Å. All Fe(1)-Ge(1) bond lengths are 2.48 Å. In the second Fe site, Fe(2) is bonded in a distorted body-centered cubic geometry to one Ni(2), three equivalent Ni(1), three equivalent Ni(3), one Ge(1), and three equivalent Ge(2) atoms. The Fe(2)-Ni(2) bond length is 2.50 Å. All Fe(2)-Ni(1) bond lengths are 2.86 Å. All Fe(2)-Ni(3) bond lengths are 2.48 Å. The Fe(2)-Ge(1) bond length is 2.47 Å. All Fe(2)-Ge(2) bond lengths are 2.48 Å. In the third Fe site, Fe(3) is bonded in a body-centered cubic geometry to one Ni(3), three equivalent Ni(2), one Ge(1), and three equivalent Ge(2) atoms. The Fe(3)-Ni(3) bond length is 2.51 Å. All Fe(3)-Ni(2) bond lengths are 2.48 Å. The Fe(3)-Ge(1) bond length is 2.47 Å. All Fe(3)-Ge(2) bond lengths are 2.49 Å. There are three inequivalent Ni sites. In the first Ni site, Ni(1) is bonded in a 14-coordinate geometry to three equivalent Fe(1), three equivalent Fe(2), one Ni(2), three equivalent Ni(3), one Ge(2), and three equivalent Ge(1) atoms. The Ni(1)-Ni(2) bond length is 2.46 Å. All Ni(1)-Ni(3) bond lengths are 2.48 Å. The Ni(1)-Ge(2) bond length is 2.49 Å. All Ni(1)-Ge(1) bond lengths are 2.48 Å. In the second Ni site, Ni(2) is bonded in a 14-coordinate geometry to one Fe(2), three equivalent Fe(1), three equivalent Fe(3), one Ni(1), three equivalent Ge(1), and three equivalent Ge(2) atoms. All Ni(2)-Ge(1) bond lengths are 2.86 Å. All Ni(2)-Ge(2) bond lengths are 2.87 Å. In the third Ni site, Ni(3) is bonded in a 14-coordinate geometry to one Fe(1), one Fe(3), three equivalent Fe(2), three equivalent Ni(1), three equivalent Ge(1), and three equivalent Ge(2) atoms. All Ni(3)-Ge(1) bond lengths are 2.85 Å. All Ni(3)-Ge(2) bond lengths are 2.87 Å. There are two inequivalent Ge sites. In the first Ge site, Ge(1) is bonded in a distorted body-centered cubic geometry to one Fe(2), one Fe(3), three equivalent Fe(1), three equivalent Ni(1), three equivalent Ni(2), and three equivalent Ni(3) atoms. In the second Ge site, Ge(2) is bonded in a distorted body-centered cubic geometry to one Fe(1), three equivalent Fe(2), three equivalent Fe(3), one Ni(1), three equivalent Ni(2), and three equivalent Ni(3) atoms.