The ternary system cobalt-germanium-silicon
Co-Ge-Si alloys phase equilibria, evaluating long term stability of junctions between thermoelectric batteries conducting series connectors
Michalik, S. J.↗
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Materials Data on Co3SiGe2 by Materials Project
Co3Ge2Si crystallizes in the triclinic P1 space group. The structure is three-dimensional. there are twelve inequivalent Co sites. In the first Co site, Co is bonded in a 7-coordinate geometry to four Ge and three Si atoms. There are a spread of Co–Ge bond distances ranging from 2.36–2.55 Å. There are a spread of Co–Si bond distances ranging from 2.31–2.60 Å. In the second Co site, Co is bonded in a 7-coordinate geometry to six Ge and one Si atom. There are a spread of Co–Ge bond distances ranging from 2.37–2.59 Å. The Co–Si bond length is 2.32 Å. In the third Co site, Co is bonded in a 7-coordinate geometry to six Ge and one Si atom. There are a spread of Co–Ge bond distances ranging from 2.37–2.60 Å. The Co–Si bond length is 2.32 Å. In the fourth Co site, Co is bonded in a 7-coordinate geometry to four Ge and three Si atoms. There are a spread of Co–Ge bond distances ranging from 2.36–2.58 Å. There are two shorter (2.32 Å) and one longer (2.62 Å) Co–Si bond lengths. In the fifth Co site, Co is bonded in a 7-coordinate geometry to five Ge and two equivalent Si atoms. There are a spread of Co–Ge bond distances ranging from 2.38–2.55 Å. There are one shorter (2.35 Å) and one longer (2.56 Å) Co–Si bond lengths. In the sixth Co site, Co is bonded in a 7-coordinate geometry to five Ge and two equivalent Si atoms. There are a spread of Co–Ge bond distances ranging from 2.38–2.55 Å. There are one shorter (2.35 Å) and one longer (2.56 Å) Co–Si bond lengths. In the seventh Co site, Co is bonded in a 7-coordinate geometry to three Ge and four Si atoms. There are a spread of Co–Ge bond distances ranging from 2.38–2.52 Å. There are a spread of Co–Si bond distances ranging from 2.36–2.56 Å. In the eighth Co site, Co is bonded in a 7-coordinate geometry to five Ge and two Si atoms. There are a spread of Co–Ge bond distances ranging from 2.38–2.56 Å. There are one shorter (2.34 Å) and one longer (2.57 Å) Co–Si bond lengths. In the ninth Co site, Co is bonded in a 7-coordinate geometry to five Ge and two Si atoms. There are a spread of Co–Ge bond distances ranging from 2.38–2.55 Å. There are one shorter (2.36 Å) and one longer (2.57 Å) Co–Si bond lengths. In the tenth Co site, Co is bonded in a 7-coordinate geometry to four Ge and three Si atoms. There are a spread of Co–Ge bond distances ranging from 2.40–2.54 Å. There are a spread of Co–Si bond distances ranging from 2.35–2.55 Å. In the eleventh Co site, Co is bonded in a 7-coordinate geometry to four Ge and three Si atoms. There are a spread of Co–Ge bond distances ranging from 2.37–2.54 Å. There are a spread of Co–Si bond distances ranging from 2.35–2.57 Å. In the twelfth Co site, Co is bonded in a 7-coordinate geometry to five Ge and two equivalent Si atoms. There are a spread of Co–Ge bond distances ranging from 2.38–2.56 Å. There are one shorter (2.35 Å) and one longer (2.56 Å) Co–Si bond lengths. There are eight inequivalent Ge sites. In the first Ge site, Ge is bonded in a 7-coordinate geometry to seven Co and two equivalent Si atoms. There are one shorter (2.83 Å) and one longer (2.84 Å) Ge–Si bond lengths. In the second Ge site, Ge is bonded in a 7-coordinate geometry to seven Co and two equivalent Si atoms. There are one shorter (2.83 Å) and one longer (2.84 Å) Ge–Si bond lengths. In the third Ge site, Ge is bonded in a 7-coordinate geometry to seven Co and three Si atoms. There are a spread of Ge–Si bond distances ranging from 2.79–2.86 Å. In the fourth Ge site, Ge is bonded in a 7-coordinate geometry to seven Co and three Si atoms. There are one shorter (2.83 Å) and two longer (2.85 Å) Ge–Si bond lengths. In the fifth Ge site, Ge is bonded in a 7-coordinate geometry to seven Co and two equivalent Si atoms. There are one shorter (2.83 Å) and one longer (2.84 Å) Ge–Si bond lengths. In the sixth Ge site, Ge is bonded in a 7-coordinate geometry to seven Co and four Si atoms. There are a spread of Ge–Si bond distances ranging from 2.80–2.87 Å. In the seventh Ge site, Ge is bonded in a 7-coordinate geometry to seven Co and two Si atoms. There are one shorter (2.83 Å) and one longer (2.84 Å) Ge–Si bond lengths. In the eighth Ge site, Ge is bonded in a 7-coordinate geometry to seven Co and two Si atoms. There are one shorter (2.83 Å) and one longer (2.85 Å) Ge–Si bond lengths. There are four inequivalent Si sites. In the first Si site, Si is bonded in a 11-coordinate geometry to seven Co, four Ge, and two equivalent Si atoms. Both Si–Si bond lengths are 2.80 Å. In the second Si site, Si is bonded in a 7-coordinate geometry to seven Co and six Ge atoms. In the third Si site, Si is bonded in a 7-coordinate geometry to seven Co and six Ge atoms. In the fourth Si site, Si is bonded in a 5-coordinate geometry to seven Co, four Ge, and two equivalent Si atoms.
36 MATERIALS SCIENCE↗
Materials Data on Co2SiGe by Materials Project
Co2GeSi crystallizes in the monoclinic P2_1 space group. The structure is three-dimensional. there are two inequivalent Co1+ sites. In the first Co1+ site, Co1+ is bonded in a 2-coordinate geometry to two equivalent Ge2+ and four equivalent Si4- atoms. There are one shorter (2.37 Å) and one longer (2.41 Å) Co–Ge bond lengths. There are a spread of Co–Si bond distances ranging from 2.35–2.54 Å. In the second Co1+ site, Co1+ is bonded in a 5-coordinate geometry to two equivalent Ge2+ and three equivalent Si4- atoms. There are one shorter (2.37 Å) and one longer (2.38 Å) Co–Ge bond lengths. There are a spread of Co–Si bond distances ranging from 2.31–2.57 Å. Ge2+ is bonded in a 8-coordinate geometry to four Co1+ and four equivalent Si4- atoms. There are two shorter (2.78 Å) and two longer (2.85 Å) Ge–Si bond lengths. Si4- is bonded in a 11-coordinate geometry to seven Co1+, four equivalent Ge2+, and two equivalent Si4- atoms. Both Si–Si bond lengths are 2.80 Å.
36 MATERIALS SCIENCE↗