Aromatic hydrocarbon

An aromatic hydrocarbon or arene (or sometimes aryl hydrocarbon) is a hydrocarbon with sigma bonds and delocalized pi electrons between carbon atoms forming rings. The term 'aromatic' was assigned before the physical mechanism determining aromaticity was discovered; the term was coined as such simply because many of the compounds have a sweet or pleasant odour. The configuration of six carbon atoms in aromatic compounds is known as a benzene ring, after the simplest possible such hydrocarbon, benzene. Aromatic hydrocarbons can be monocyclic (MAH) or polycyclic (PAH).

Some non-benzene-based compounds called heteroarenes, which follow Hückel's rule (for monocyclic rings: when the number of its π-electrons equals 4n+2, where n=0,1,2,3.......), are also called aromatic compounds. In these compounds, at least one carbon atom is replaced by one of the heteroatoms oxygen, nitrogen, or sulfur. Examples of non-benzene compounds with aromatic properties are furan, a heterocyclic compound with a five-membered ring that includes a single oxygen atom, and pyridine, a heterocyclic compound with a six-membered ring containing one nitrogen atom.

Arene (gastropod)

Arene is a genus of small sea snails that have a calcareous operculum, marine gastropod molluscs in the family Areneidae.

The genus Arene (and also the genus Cinysca) are placed within the family Areneidae, although Areneidae was not officially described as a taxon name. Areneidae is provisionally placed within the superfamily Angarioidea, according to Williams et al. (2008)

Species

Species within the genus Arene include:

Arene (disambiguation)

An Aromatic hydrocarbon or Arene is a hydrocarbon with alternating double and single bonds between carbon atoms forming rings.

Arene may also refer to:

People with the surname