any of the elements oxygen, sulphur, selenium, tellurium, or polonium, of group 6A of the periodic table
Word origin
C20: from chalco(pyrite) + -gen
chalcogen in American English
(ˈkælkədʒən, -ˌdʒen)
noun
Chemistry
any of the elements oxygen, sulfur, selenium, tellurium, and polonium, which formthe VIa group in the periodic table
Word origin
[1960–65; chalcho- + -gen]This word is first recorded in the period 1960–65. Other words that entered Englishat around the same time include: buyback, deinstitutionalize, go-go, power play, proxemics-gen is a combining form meaning “that which produces,” used in the formation of compoundwords. Other words that use the affix -gen include: endogen, hydrogen
Examples of 'chalcogen' in a sentence
chalcogen
These strong pseudo-bifurcated chalcogen bond synthons have great potential as building blocks in crystal engineering.
Yu Zhang, Weizhou Wang 2018, 'Pseudo-Bifurcated Chalcogen Bond in Crystal Engineering', Crystalshttp://www.mdpi.com/2073-4352/8/4/163. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
Both molecules are stabilized in crystal by tetrel, chalcogen, and multiple charge-assisted hydrogen bonds.
Firudin I. Guseinov, Mikhail F. Pistsov, Eldar M. Movsumzade, Leonid M. Kustov, VictorA. Tafeenko, Vladimir V. Chernyshev, Atash V. Gurbanov, Kamran T. Mahmudov, ArmandoJ. L. Pombeiro 2017, 'Tetrel, Chalcogen, and Charge-Assisted Hydrogen Bonds in 2-((2-Carboxy-1-(substituted)-2-hydroxyethyl)thio)Pyridin-1-ium Chlorides', Crystalshttps://www.mdpi.com/2073-4352/7/11/327. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
All data regarding thermodynamic properties of thallium chalcogen-halides are generalized and comparatively analyzed.
Dunya Mahammad Babanly, Qorkhmaz Mansur Huseynov, Ziya Saxaveddin Aliev, Dilgam BabirTagiyev, Mahammad Baba Babanly 2017, 'Thermodynamic Study of Tl6SBr4 Compound and Some Regularities in Thermodynamic Propertiesof Thallium Chalcohalides', Advances in Materials Science and Engineeringhttp://dx.doi.org/10.1155/2017/5370289. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
The binding energy of the strongest pseudo-bifurcated chalcogen bond attains about 27 kcal/mol.
Yu Zhang, Weizhou Wang 2018, 'Pseudo-Bifurcated Chalcogen Bond in Crystal Engineering', Crystalshttp://www.mdpi.com/2073-4352/8/4/163. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
Deviation of the stoichiometry confirmed the chalcogen-rich region.
Sharma Ishu, Sunder Sruthi 2018, 'Analysis of glass forming ability using percolation concept and tunability of physicalparameters of a-Ge12Se76 - xAs12Bix glassy semiconductors', Materials Science-Polandhttp://www.degruyter.com/view/j/msp.2018.36.issue-2/msp-2018-0006/msp-2018-0006.xml?format=INT. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
The shapes of clusters are octahedral and confacial bioctahedral, respectively, face-capped by chalcogen atoms over each triangle face.
You-Soon Lee, Sung Kwon Kang 2009, 'The Chevrel phase In4.07Mo15S11.87Se7.13 with mixed chalcogenide occupancy', Acta Crystallographica Section Ehttp://scripts.iucr.org/cgi-bin/paper?S1600536809007351. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
For chalcogenophenes, the carbon–chalcogen atom-bond breaking can lead to opening of the ring and adsorption of an alkene chalcogenide.
Yongfeng Tong, Tingming Jiang, Azzedine Bendounan, Makri Nimbegondi Kotresh Harish,Angelo Giglia, Stefan Kubsky, Fausto Sirotti, Luca Pasquali, Srinivasan Sampath, VladimirA. Esaulov 2016, 'Case studies on the formation of chalcogenide self-assembled monolayers on surfacesand dissociative processes', Beilstein Journal of Nanotechnologyhttps://doi.org/10.3762/bjnano.7.24. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
Old theories on hypervalency of sulfur and the nature of the chalcogen-chalcogen bond are now questioned.
John I. Toohey, Arthur J. L. Cooper 2014, 'Thiosulfoxide (Sulfane) Sulfur: New Chemistry and New Regulatory Roles in Biology',Moleculeshttp://www.mdpi.com/1420-3049/19/8/12789. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
Such high activity might be attributed to the electronic structure of non-noble metals modified by chalcogen.
Kunchan Lee, Lei Zhang, Jiujun Zhang 2007, 'Ternary non-noble metal chalcogenide (W–Co–Se) as electrocatalyst for oxygen reductionreaction', Electrochemistry Communicationshttp://www.sciencedirect.com/science/article/pii/S138824810700135X. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
According to the nature of pseudo-bifurcated chalcogen bond, we designed some strong pseudo-bifurcatedchalcogen bond synthons.
Yu Zhang, Weizhou Wang 2018, 'Pseudo-Bifurcated Chalcogen Bond in Crystal Engineering', Crystalshttp://www.mdpi.com/2073-4352/8/4/163. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)