Chemistry:Antimonide
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
3.
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
- ↑ King, R. Bruse (2005). Encyclopedia of Inorganic Chemistry, Second Edition (10 Volume Set) (2nd ed.). Wiley. p. 211. ISBN 9780470860786.
See also
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