| aromatic |
an aromatic molecule or ion possesses aromaticity. Aromaticity is the special property of planar (or nearly planar) cyclic, conjugated systems having (4n+2) conjugated pi electrons. The delocalisation of the (4n+2) pi electrons gives them special stability. For benzene, the most common aromatic system (n = 1, therefore 6 pi electrons), the aromaticity confers the characteristic reactivity of electrophilic substitution.
Ãâó: www.cartage.org.lb/en/themes/Sciences/Chemistry/Or...
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| aromatic hydrocarbon |
Highly flammable. Heating may cause pressure buildup and possible rupture of the container. Eye and skin irritant. May contain traces of benzene, which is carcinogenic. Neurotoxic. Used in some adhesives.
Ãâó: www.georgiastrait.org/toxicglossary.php
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| aromatic |
A hydrocarbon derived from, or characterised by, the presence of the benzene ring.
Ãâó: www.caltex.com.au/products_glo.asp
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| aromatic |
a substance with a strong, volatile, fragrant aroma; often with stimulant properties.
Ãâó: www.n101.com/HealthNotes/HNs/Herb/Herb_Terms.htm
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| aromatic compound |
A substance containing one or more benzene rings. These compounds although unsaturated do not undergo normal reactions for unsaturated compounds as shown by their saturated open-chain analogues. This ability is related to the way in which their bonding electrons are spread evenly over the planar ring. Substances classified as being aromatic include those with one benzene ring such as:
Ãâó: www.ch.ic.ac.uk/vchemlib/mol/glossary/
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