chalcogen

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Related to Chalcogens: Noble gases

chalcogen

[′kal·kə·jən]
(inorganic chemistry)
Any of the elements that form group 16 of the periodic table; included are oxygen, sulfur, selenium, tellurium, and polonium.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

chalcogenide glass

A type of glass that uses chalcogen (pronounced "kal-kuh-gen") elements such as sulfur, selenium and tellurium. It has the unique property of being able to interact with both photons and electrons. Used in lenses, optical fibers, the recording layer in optical discs, it is also used in the bit cell of phase change memory. See GST, phase change disc, phase change memory and programmable metallization cell.
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References in periodicals archive ?
Ternary compounds of the form AB[X.sub.3], where A and B are metal atoms and X is a halogen or a chalcogen, are exciting candidates as semiconductors for photovoltaics and other applications.
This structure contains dimers of Cr[X.sub.6] (X = S, Se, or Te) octahedra and ninefold coordination between the A site and the chalcogen atoms.
Despite the fact that selenium has the largest electron cloud among the selected chalcogens (O, S, Se), least interaction energies were recorded for molecular orbitals of the seleno complex.
Interest in softer chalcogen (S and Se) containing complexes is rapidly increasing because of their potential application in bioinorganic and coordination chemistry [14].
Frontera, "Halogen bonding versus chalcogen and pnicogen bonding: a combined Cambridge structural database and theoretical study," CrystEng-Comm, vol.
Dispersion patterns of chalcogen gases in soils can therefore be used to obtain a geochemical expression of the occurrence of their parent minerals (and by inference the accompanying metals).
One further element, which occurs neither in ore minerals nor as a gas, can claim to be a cousin of the chalcogen gases.
Barron, "Meldola lecture: reactions of group 13 alkyls with dioxygen and elemental chalcogens: from carelessness to chemistry," Chemical Society Reviews, vol.
Barroso et al., "Coordination diversity of aluminum centers molded by triazole based chalcogen ligands," Inorganic Chemistry, vol.