Antimonide

Short description: Compound containing Sb3−

Antimonides (sometimes called stibnides or stibinides) are compounds of antimony with more electropositive elements. The antimonide ion is Sb3−.

Reduction of antimony by alkali metals or by other methods leads to alkali metal antimonides of various types.[1] Known antimonides include isolated Sb3− ions (in Li
3Sb, Na
3Sb), dumbbells Sb4−
2 in Cs
4Sb
2, discrete antimony chains, for example, Sb8−
6 in SrSb
3, infinite spirals (Sb−

n (in NaSb, RbSb), planar four-membered rings Sb2−
4, Sb3−
7 cages in Cs
3Sb, and net shaped anions Sb2−
3 in BaSb

Some antimonides are semiconductors, e.g. those of the boron group such as indium antimonide. Many antimonides are flammable or decomposed by oxygen when heated since the antimonide ion is a reducing agent.

## References

1. ↑ King, R. Bruse (2005). Encyclopedia of Inorganic Chemistry, Second Edition (10 Volume Set) (2nd ed.). Wiley. p. 211. ISBN 9780470860786.

## See also

* Antimonide mineral

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