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All sourcesNASA NTRSDOE OSTI
DOE OSTI2020

Materials Data on Y2Ge5Ir3 by Materials Project

Y2Ir3Ge5 crystallizes in the orthorhombic Ibam space group. The structure is three-dimensional. Y is bonded in a 1-coordinate geometry to seven Ir and ten Ge atoms. There are a spread of Y–Ir bond distances ranging from 3.13–3.57 Å. There are a spread of Y–Ge bond distances ranging from 2.97–3.37 Å. There are two inequivalent Ir sites. In the first Ir site, Ir is bonded in a 6-coordinate geometry to four equivalent Y and six Ge atoms. There are four shorter (2.54 Å) and two longer (2.64 Å) Ir–Ge bond lengths. In the second Ir site, Ir is bonded in a 10-coordinate geometry to five equivalent Y and five Ge atoms. There are a spread of Ir–Ge bond distances ranging from 2.39–2.53 Å. There are three inequivalent Ge sites. In the first Ge site, Ge is bonded in a 4-coordinate geometry to four equivalent Y, three Ir, and two equivalent Ge atoms. Both Ge–Ge bond lengths are 2.70 Å. In the second Ge site, Ge is bonded in a 3-coordinate geometry to four equivalent Y, three Ir, and two equivalent Ge atoms. In the third Ge site, Ge is bonded in a 8-coordinate geometry to four equivalent Y and four equivalent Ir atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on YGe2Ir by Materials Project

YIrGe2 crystallizes in the orthorhombic Immm space group. The structure is three-dimensional. there are two inequivalent Y sites. In the first Y site, Y is bonded in a 8-coordinate geometry to six equivalent Ir and nine Ge atoms. There are four shorter (3.25 Å) and two longer (3.28 Å) Y–Ir bond lengths. There are a spread of Y–Ge bond distances ranging from 2.96–3.50 Å. In the second Y site, Y is bonded in a 8-coordinate geometry to four equivalent Ir and ten Ge atoms. All Y–Ir bond lengths are 3.19 Å. There are a spread of Y–Ge bond distances ranging from 3.27–3.41 Å. Ir is bonded in a 10-coordinate geometry to five Y and five Ge atoms. There are a spread of Ir–Ge bond distances ranging from 2.48–2.63 Å. There are three inequivalent Ge sites. In the first Ge site, Ge is bonded in a 9-coordinate geometry to six Y, two equivalent Ir, and one Ge atom. The Ge–Ge bond length is 2.49 Å. In the second Ge site, Ge is bonded in a 8-coordinate geometry to four Y, three equivalent Ir, and one Ge atom. The Ge–Ge bond length is 2.73 Å. In the third Ge site, Ge is bonded in a 2-coordinate geometry to five Y and two equivalent Ir atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Y5(Ge5Ir2)2 by Materials Project

Y5(Ir2Ge5)2 crystallizes in the tetragonal P4/mbm space group. The structure is three-dimensional. there are three inequivalent Y sites. In the first Y site, Y is bonded in a 8-coordinate geometry to four equivalent Ir and twelve Ge atoms. All Y–Ir bond lengths are 3.22 Å. There are eight shorter (2.99 Å) and four longer (3.36 Å) Y–Ge bond lengths. In the second Y site, Y is bonded to four equivalent Ir and eight Ge atoms to form face-sharing YGe8Ir4 cuboctahedra. All Y–Ir bond lengths are 3.13 Å. There are a spread of Y–Ge bond distances ranging from 2.95–3.08 Å. In the third Y site, Y is bonded in a 8-coordinate geometry to four equivalent Ir and ten Ge atoms. All Y–Ir bond lengths are 3.34 Å. There are a spread of Y–Ge bond distances ranging from 3.29–3.38 Å. Ir is bonded in a 10-coordinate geometry to five Y and five Ge atoms. There are a spread of Ir–Ge bond distances ranging from 2.47–2.57 Å. There are three inequivalent Ge sites. In the first Ge site, Ge is bonded in a 9-coordinate geometry to six Y, two equivalent Ir, and one Ge atom. The Ge–Ge bond length is 2.45 Å. In the second Ge site, Ge is bonded in a 2-coordinate geometry to five Y, two equivalent Ir, and one Ge atom. The Ge–Ge bond length is 2.53 Å. In the third Ge site, Ge is bonded in a 2-coordinate geometry to four Y, two equivalent Ir, and two equivalent Ge atoms. Both Ge–Ge bond lengths are 2.90 Å.

36 MATERIALS SCIENCE↗