π electron refers to the electron in π orbit, which is a kind ofmolecular orbital。Is formedpi bondThe molecular orbital generated after.π orbit is a new kind of orbit formed by overlapping orbits side by side.A double bond has two π electrons, oneTriple bondThere are four π electrons[1]
Chinese name
π electron
Foreign name
π electron
Interpretation
Electrons in π orbitals
Discipline
Chemistry
Calculation method
aboutethylene, twocarbon atomBy double bond, thedouble bondIt is composed of a σ bond and a π bond, and the number of π electrons is 2;For acetylene, two carbon atomsTriple bondThe triple bond is composed of aσ bondAnd twopi bondComposition, the number of π electrons is 4;aboutbenzene ringIt can be considered that there are three double bonds arranged alternately, so the number of π electrons is 6.
