fenüülrühmast

Fenüülrühmast is the Estonian term for the phenyl group. The phenyl group is an organic functional group with the chemical formula C6H5−. It consists of a benzene ring (C6H6) from which one hydrogen atom has been removed. The phenyl group is a planar, cyclic, and aromatic substituent. It is a common structural unit in organic chemistry and is found in a vast number of organic compounds, including many important pharmaceuticals, dyes, and polymers. When a phenyl group is attached to a molecule, it often influences the molecule's reactivity, physical properties such as solubility and melting point, and electronic characteristics. The phenyl group is often abbreviated as "Ph" in chemical formulas. For example, toluene is methylbenzene, and its structure can be represented as C6H5CH3 or PhCH3. The stability of the phenyl group arises from its aromaticity, a special type of delocalized pi electron system within the ring. This stability makes it a resilient and frequently encountered moiety in organic synthesis and biological systems.