4.10 Aromatic Chemistry Flashcards
1
Q
Delocalisation
A
The pi (π) electrons in benzene are spread over several atoms.
2
Q
Electrophile
A
An ion or molecule that attacks areas of high electron density and accepts a lone pair of electrons.
3
Q
Substitution
A
A reaction where an atom or group of atoms in a molecule is replaced by another atom or group of atoms.
4
Q
Pi Bond (π)
A
A covalent bond formed by the sideways overlap of two orbitals resulting in a double overlap above and below a sigma bond and restricted rotation along the bond axis.
5
Q
Sigma Bond (σ)
A
A covalent bond formed by the linear overlap of atomic orbitals resulting in a single reigon of overlap and free rotation along the bond axis.
