benzene ring

American  

noun

Chemistry.

1. the graphic representation of the structure of benzene as a hexagon with a carbon atom at each of its points. Each carbon atom is united with an atom of hydrogen, one or more of which may be replaced to form benzene derivatives.

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benzene ring British  

noun

1. Also called: benzene nucleus.  the hexagonal ring of bonded carbon atoms in the benzene molecule or its derivatives See also Kekulé formula

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benzene ring Scientific  

1. A hexagonal arrangement of six carbon atoms, each atom bonded to its adjacent atoms by a single covalent bond, and by an unusual ring bond of electrons shared by all six carbon atoms. The benzene ring is a basic component of many organic compounds, especially the aromatic hydrocarbons. In benzene itself, each carbon atom is also bonded to a hydrogen atom; in derivatives of benzene, one or more of the hydrogen atoms is replaced by other atoms or groups of atoms.

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Etymology

Origin of benzene ring

First recorded in 1875–80

Example Sentences

They consist of an electron-abundant benzene ring fused to an electron-deficient pyridine ring; these electronically distinct rings can be modified independently by adjusting reaction conditions.

From Science Daily

"Basically -- within this specific subset of layered materials -- the more benzene rings we add, the stiffer the material gets, and the better able it is to insulate against heat."

From Science Daily

Further technical creativity by the researchers occurs at the molecular level as they explored the use of acenes, which are organic compounds made up of linearly fused benzene rings.

From Science Daily

They’re actually describing molecules — such as those that contain benzene rings — that have a certain number of electrons interlocked into circular systems, thereby lowering the energy of the molecule concerned.

From Nature

The authors also discovered that one of the candidate cytochrome P450 enzymes catalyses two steps in the proposed biosynthetic pathway: the installation of two hydroxyl groups on a benzene ring in an intermediate compound.

From Nature