- Telluride (chemistry)
Telluride Identifiers ChemSpider 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
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+.
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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.
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