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All sourcesNASA NTRSDOE OSTI
DOE OSTI2020

Materials Data on Ge2W by Materials Project

WGe2 is Titanium Disilicide-like structured and crystallizes in the tetragonal I4/mmm space group. The structure is three-dimensional. W is bonded in a distorted q6 geometry to ten equivalent Ge atoms. There are eight shorter (2.72 Å) and two longer (2.80 Å) W–Ge bond lengths. Ge is bonded in a 10-coordinate geometry to five equivalent W and five equivalent Ge atoms. There are one shorter (2.70 Å) and four longer (2.77 Å) Ge–Ge bond lengths.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Ge2W by Materials Project

WGe2 is Cotunnite structured and crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. W is bonded in a 9-coordinate geometry to nine Ge atoms. There are a spread of W–Ge bond distances ranging from 2.59–2.88 Å. There are two inequivalent Ge sites. In the first Ge site, Ge is bonded in a 8-coordinate geometry to four equivalent W and four Ge atoms. There are two shorter (2.56 Å) and two longer (2.74 Å) Ge–Ge bond lengths. In the second Ge site, Ge is bonded in a 4-coordinate geometry to five equivalent W and two equivalent Ge atoms.

36 MATERIALS SCIENCE↗