Consequently, when this aromatic ring was attached to something, it was called the “phenyl” group. Historically, the benzene ring was given a name of “phene” as the chemical name. The Greek alpha comes from the Hebrew and Phoenician aleph, a form of the word for “ox,” eleph, possibly because the character resembled an ox’s head. One example where the golden ratio often arises is in self-replication, having its mathematical origins in Fibonacci’s sequence for “rabbit reproduction”. The golden ratio, ϕ = 1.61803…, has often been found in connection with biological phenomena, ranging from spirals in sunflowers to gene frequency.
Phenyl groups have six carbon atoms in a hexagonal planar structure, of which five are bonded to hydrogen atoms. Phenyl groups are closely related to benzene and can be described as a benzene ring, minus a hydrogen, which can be substituted as a functional group by any other element or compound. A compound containing only one functional group may have more than one α carbon. What is the alpha symbol in chemistry?Īn alpha (symbol: α) carbon is a carbon atom bonded to a functional group in an organic compound the carbon atom next to the α carbon is the beta (symbol: β) carbon, and so on (α, β, γ, δ…). Phi (/faɪ/ uppercase Φ, lowercase φ or ϕ Ancient Greek: ϕεῖ pheî Modern Greek: φι fi ) is the 21st letter of the Greek alphabet. 24 Is pi and phi the same? What is the Phi symbol?
