Selenium compounds

Selenium dioxide

Selenium compounds are compounds containing the element selenium (Se). Among these compounds, selenium has various oxidation states, the most common ones being −2, +4, and +6. Selenium compounds exist in nature in the form of various minerals, such as clausthalite, guanajuatite, tiemannite, crookesite etc., and can also coexist with sulfide minerals such as pyrite and chalcopyrite.[1] For many mammals, selenium compounds are essential. For example, selenomethionine and selenocysteine are selenium-containing amino acids present in the human body. Selenomethionine participates in the synthesis of selenoproteins.[2] The reduction potential and pKa (5.47) of selenocysteine are lower than those of cysteine, making some proteins have antioxidant activity.[3] Selenium compounds have important applications in semiconductors, glass and ceramic industries, medicine, metallurgy and other fields.[4]

  1. ^ ""无上"文明古国:郭实猎笔下的大英", “无上”文明古国:郭实猎笔下的大英, UniSIM Centre for Chinese Studies, SIM University, pp. 1–268, Mar 2015, retrieved 2023-12-01
  2. ^ Block, Eric; Birringer, Marc; Jiang, Weiqin; Nakahodo, Tsukasa; Thompson, Henry J.; Toscano, Paul J.; Uzar, Horst; Zhang, Xing; Zhu, Zongjian (2001-01-01). "Allium Chemistry: Synthesis, Natural Occurrence, Biological Activity, and Chemistry of Se -Alk(en)ylselenocysteines and Their γ-Glutamyl Derivatives and Oxidation Products". Journal of Agricultural and Food Chemistry. 49 (1): 458–470. doi:10.1021/jf001097b. ISSN 0021-8561.
  3. ^ Byun, Byung Jin; Kang, Young Kee (May 2011). "Conformational preferences and p K a value of selenocysteine residue". Biopolymers. 95 (5): 345–353. doi:10.1002/bip.21581. ISSN 0006-3525.
  4. ^ ""无上"文明古国:郭实猎笔下的大英", “无上”文明古国:郭实猎笔下的大英, UniSIM Centre for Chinese Studies, SIM University, pp. 1–268, Mar 2015, retrieved 2023-12-01