Aromatic Compounds Flashcards
1
Q
What is benzene
A
A cyclic, planar molecule with the formula C6H6
2
Q
What is the bonding of benzene
A
Each carbon is bonded to 2 other carbons and 1 hydrogen atom. The final lone electron is in a p-orbital which sticks out above and below the plane of the ring
3
Q
What do the lone elctrons in the p-orbitals do?
A
The lone electrons combine to form a delocalised ring system of electrons
4
Q
What is special abt the bonds in benzene
A
All the same length of 139pm. This is due to the delocalised electron structure
5
Q
What is the bond length of a single c-c bond and a double c-c bond
A
S: 154pm
D;: 134pm
6
Q
Proof that benzene is more stable
A
Lower hydrogenation enthalpy than kekules structure
7
Q
What are arenes
A
Aromatic compounds that contain a benzene ring
