antimonide

[an-tuh-muh-nahyd, -nid]
noun Chemistry.
a binary compound containing antimony and a second element, usually a metal.

Origin:
1860–65; antimon(y) + -ide

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Encyclopedia Britannica
Encyclopedia

antimonide

any member of a rare mineral group consisting of compounds of one or more metals with antimony (Sb). The coordination of the metal is virtually always octahedral or tetrahedral; i.e., in the former, each metal ion occupies a position within an octahedron composed of six negatively charged antimony ions, whereas, in the latter, the metal ion is surrounded by four negatively charged neighbours that are arranged tetrahedrally. The crystal structure of octahedral coordination is identical to that of the sulfide mineral galena; that of tetrahedral coordination corresponds to the structure of another member of the same mineral group, argentite.

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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Example sentences
After further experimentation, they found what they were looking for in a more exotic stuff called indium antimonide.
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