Telluride (chemistry)


Telluride (chemistry)
Telluride
Identifiers
ChemSpider 19241429 YesY
Jmol-3D images Image 1
Properties
Molecular formula Te2−
Molar mass 127.6 g mol-1
Exact mass 129.906222753 g mol-1
Related compounds
Other anions Sulfide
Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)
Infobox references

The telluride ion is Te2−. It is the final stable member of the series of dianions O2−, S2−, and Se2− (see chalcogenide).

Tellurides also describe a class of compounds formally derived from Te2−; i.e., their electronic structure is reasonably well approximated by considering the tellurium atom as having an octet configuration. Using this approach, Ag2Te is derived from Ag+.

Examples:

See category for a list.

Discussion

In aqueous solution, Te2− exists only at high pH. In neutral conditions, hydrogen telluride ion, HTe, is prevalent. In acid conditions, hydrogen telluride, H2Te, forms. Products of three reaction products with tellurium have economic importance: cadmium, bismuth, and lead. Cadmium telluride has photovoltaic activity, while bismuth and lead tellurides are exceptional thermoelectric materials.[1]

Notes



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