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pyrylium
Sign in to saveAlso known as pyrylium ion, pyrylium cation
Pyrylium is a cation (positive ion) with formula , consisting of a six-membered ring of five carbon atoms, each with one hydrogen atom, and one positively charged oxygen atom. The bonds in the ring are conjugated as in benzene, giving it an aromatic character. In particular, because of the positive charge, the oxygen atom is trivalent. Pyrilium is a mono-cyclic and heterocyclic compound, one of the oxonium ions.
Chemical data
- Formula
- C5H5O+
- Molecular weight
- 81.09 g/mol
- IUPAC name
- pyrylium
- SMILES
- C1=CC=[O+]C=C1
- InChIKey
- WVIICGIFSIBFOG-UHFFFAOYSA-N
- Polar surface area
- 1 Ų
- H-bond donors
- 0
- H-bond acceptors
- 0
- Formal charge
- 1
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Wikidata facts
- Has part
- carbon
- Mass
- 81.03404
Show 3 more facts
- Commons category
- Pyrylium ion
- canonical SMILES
- C1=CC=[O+]C=C1
- chemical formula
- C₅H₅O⁺
Sources (2)
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Encyclopedic overview
9 sectionsContents
- Synthesis
- Chemical properties
- Derivatives
- Pyrones
- Polycyclic oxonium arenes
- Chromenylium ion
- Naphthoxanthenium cation
- See also
- References
Pyrylium is a cation (positive ion) with formula , consisting of a six-membered ring of five carbon atoms, each with one hydrogen atom, and one positively charged oxygen atom. The bonds in the ring are conjugated as in benzene, giving it an aromatic character. In particular, because of the positive charge, the oxygen atom is trivalent. Pyrilium is a mono-cyclic and heterocyclic compound, one of the oxonium ions.
==Synthesis== Pyrylium salts are easily produced from simple starting materials through a condensation reaction.
Excerpted from Wikipedia’s “pyrylium” article, available under the CC BY-SA 4.0 licence.
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