Selenides

Part of speech: noun

Definitions

  1. Chemical compounds composed of selenium combined with another element, typically forming anions or salts; materials often used in semiconductors and photovoltaics; substances containing selenium in the oxidation state of -2
  2. Substances consisting of selenium bonded to metals or other elements, usually appearing as salts involving the selenide ion; components employed in electronic and optical devices; compounds exhibiting selenium’s -2 oxidation state
  3. Materials formed when selenium combines with other elements to create ionic or covalent bonds, frequently manifesting as anions in salts; utilized in various technological applications like solar cells; chemical species where selenium carries a negative two charge

Etymology: The term "selenides" is derived from the element selenium, named after the Greek moon goddess Selene. Selenium itself was discovered in 1817 by the Swedish chemist Jöns Jakob Berzelius, who named it to complement the recently discovered tellurium, named after the Earth. The name links the element to the moon, reflecting its position just below tellurium in the periodic table and symbolizing its celestial connection. "Selenide" refers to a binary compound formed between selenium and a more electropositive element, often a metal. The suffix "-ide" is a standard chemical ending used to indicate a simple anion or binary compound. This suffix entered English chemical nomenclature in the 19th century, following the conventions established by early chemists to classify and name compounds systematically. The plural form, "selenides," simply denotes multiple such compounds or a group of these binary substances. These compounds play important roles in materials science and semiconductor technology, where selenium's properties as a metalloid are exploited. The term itself follows the pattern of chemical terminology, combining the root element name with a suffix signaling its ionic or compound nature. Overall, the word emerged in scientific literature in the 19th century, as chemists expanded the catalog of known elements and their compounds. Its construction reflects the classical roots common in chemical nomenclature, linking mythology, discovery, and systematic naming into a concise term.

Synonyms: selenium compounds, selenium salts