User:Graeme Bartlett/indide

A indide is an inorganic chemical compound containing anions composed of indium atoms. Indium is right of the Zintl border in the periodic table, so indides are not Zintl compounds. They are a kind of intermetallic compound.

Related compounds include the thallides and gallides.

Indides contain clusters of indium atoms. There are compounds with 4, 5, 6, 8 11 atoms. Four-atom clusters are tetrahedral and have interatomic distance of 3.171 Å, more dense than in indium metal.

Production
Indides can be prepared by melting metals together under an inert atmosphere. For some combinations of metal, the boiling tmeperatuire of one may exceed the melting point of another, so the reaction is done in a sealed tantalum, niobium or molybdenum capsule. An alternative is to use excess indium and crystallise from a molten indium flux.

ref dump
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