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In organic chemistry, the phenyl group or phenyl rneasy mini kit qiagen protocol pdf is a cyclic group of atoms with the formula C6H5....

In organic chemistry, the phenyl group or phenyl rneasy mini kit qiagen protocol pdf is a cyclic group of atoms with the formula C6H5. Phenyl groups are closely related to benzene and can be viewed as a benzene ring, minus a hydrogen, which may be replaced by some other element or compound to serve as a functional group. Phenyl groups have six carbon atoms bonded together in a hexagonal planar ring, five of which are bonded to individual hydrogen atoms, with the remaining carbon bonded to a substituent.


Phenyl groups are commonplace in organic chemistry. Although often depicted with alternating double and single bonds, phenyl groups are chemically aromatic and show nearly equal bond lengths between carbon atoms in the ring. Benzene is sometimes denoted as PhH.

Phenyl groups are generally attached to other atoms or groups. Many or even most phenyl compounds are not described with the term “phenyl”. For example, the chloro derivative C6H5Cl is normally called chlorobenzene, although it could be called phenyl chloride. Although Ph and phenyl uniquely denote C6H5, substituted derivatives also are described using the phenyl terminology.

For example, O2NC6H4 is nitrophenyl and F5C6 is pentafluorophenyl. Higher degrees of substitution, of which the pentafluorophenyl group is an example, exist, and are named according to IUPAC nomenclature. Michael Faraday in 1825 from the oily residue left by the illuminating gas used in London street lamps.

In terms of its electronic properties, the phenyl group is related to a vinyl group. The phenyl group is hydrophobic.

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