Materials Data on U6Ni by Materials Project
U6Ni crystallizes in the triclinic P1 space group. The structure is three-dimensional. there are twelve inequivalent U sites. In the first U site, U is bonded in a 4-coordinate geometry to five U and two Ni atoms. There are a spread of U–U bond distances ranging from 2.55–3.33 Å. There are one shorter (2.80 Å) and one longer (2.82 Å) U–Ni bond lengths. In the second U site, U is bonded in a 3-coordinate geometry to thirteen U atoms. There are a spread of U–U bond distances ranging from 2.73–3.36 Å. In the third U site, U is bonded in a 3-coordinate geometry to thirteen U atoms. There are a spread of U–U bond distances ranging from 2.76–3.31 Å. In the fourth U site, U is bonded in a 4-coordinate geometry to five U and two Ni atoms. There are a spread of U–U bond distances ranging from 2.55–3.24 Å. Both U–Ni bond lengths are 2.81 Å. In the fifth U site, U is bonded in a 3-coordinate geometry to thirteen U atoms. There are a spread of U–U bond distances ranging from 2.78–3.35 Å. In the sixth U site, U is bonded in a 4-coordinate geometry to five U and two Ni atoms. There are a spread of U–U bond distances ranging from 2.55–3.23 Å. There are one shorter (2.81 Å) and one longer (2.82 Å) U–Ni bond lengths. In the seventh U site, U is bonded in a 4-coordinate geometry to five U and two Ni atoms. There are one shorter (2.55 Å) and one longer (3.36 Å) U–U bond lengths. There are one shorter (2.80 Å) and one longer (2.81 Å) U–Ni bond lengths. In the eighth U site, U is bonded in a 4-coordinate geometry to five U and two Ni atoms. The U–U bond length is 3.33 Å. Both U–Ni bond lengths are 2.80 Å. In the ninth U site, U is bonded in a 4-coordinate geometry to five U and two Ni atoms. The U–U bond length is 2.82 Å. There are one shorter (2.81 Å) and one longer (2.83 Å) U–Ni bond lengths. In the tenth U site, U is bonded in a 4-coordinate geometry to five U and two Ni atoms. There are one shorter (3.21 Å) and one longer (3.22 Å) U–U bond lengths. There are one shorter (2.80 Å) and one longer (2.81 Å) U–Ni bond lengths. In the eleventh U site, U is bonded in a 3-coordinate geometry to thirteen U atoms. In the twelfth U site, U is bonded in a 4-coordinate geometry to five U and two Ni atoms. There are one shorter (2.80 Å) and one longer (2.82 Å) U–Ni bond lengths. There are two inequivalent Ni sites. In the first Ni site, Ni is bonded in a 10-coordinate geometry to eight U and two equivalent Ni atoms. There are one shorter (2.55 Å) and one longer (2.56 Å) Ni–Ni bond lengths. In the second Ni site, Ni is bonded in a 10-coordinate geometry to eight U and two equivalent Ni atoms.