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- Onium_compound abstract "In chemistry, an onium compound, or onium ion, is a cation formally obtained by the protonation of mononuclear parent hydride of a pnictogen (group 15 of the periodic table), chalcogen (group 16), or halogen (group 17). The oldest-known onium ion, and the namesake for the class, is ammonium, NH+4, the protonated derivative of ammonia, NH3.The name onium is also used for cations that would result from the substitution of hydrogen atoms in those ions by other groups, such as organic radicals, or halogens; such as tetraphenylphosphonium, (C6H5)4P+. The substituent groups may be di- or trivalent, yielding ions such as iminium and nitrilium.Onium ions have a charge of +1. A molecule with two or more onium ion subgroups is said to be a double onium ion, triple onium ion, and so on. Compounds of an onium cation and some other negative ion are known as onium salts.Onium compounds are inversely analogous to ate complexes.Lewis bases form onium ions when the central atom gains one more bond and becomes a positive cation.Lewis acids form -ate ions when the central atom gains one more bond and becomes a negative anion.".
- Onium_compound wikiPageExternalLink C00839.html.
- Onium_compound wikiPageExternalLink O04291.html.
- Onium_compound wikiPageExternalLink O04291.html.
- Onium_compound wikiPageExternalLink 36.
- Onium_compound wikiPageExternalLink RC821.html.
- Onium_compound wikiPageID "5900871".
- Onium_compound wikiPageRevisionID "603243345".
- Onium_compound hasPhotoCollection Onium_compound.
- Onium_compound subject Category:Cations.
- Onium_compound comment "In chemistry, an onium compound, or onium ion, is a cation formally obtained by the protonation of mononuclear parent hydride of a pnictogen (group 15 of the periodic table), chalcogen (group 16), or halogen (group 17).".
- Onium_compound label "Composé onium".
- Onium_compound label "Onium compound".
- Onium_compound label "Íon ônio".
- Onium_compound label "Ониевые соединения".
- Onium_compound label "オニウム化合物".
- Onium_compound label "鎓化合物".
- Onium_compound sameAs Composé_onium.
- Onium_compound sameAs オニウム化合物.
- Onium_compound sameAs 오늄_화합물.
- Onium_compound sameAs Íon_ônio.
- Onium_compound sameAs m.0fcn4j.
- Onium_compound sameAs Q341409.
- Onium_compound sameAs Q341409.
- Onium_compound wasDerivedFrom Onium_compound?oldid=603243345.
- Onium_compound isPrimaryTopicOf Onium_compound.