Aromatic Chemistry

Question 1

what is a pi bond?

Answer 1

overlap of unhybridised p orbitals on each C atom

double sausage of e- density above and below bond

Question 2

what is benzene?

Answer 2

C6H6
adjacent pi bonds
delocalised e-
alternating single and double bonds sp2 bond overlap is strong
all binds equal length
e- density forms donught shape so are delocalised

Question 3

what are red curly arrows for?

Answer 3

show the donation of e- so the movement of e- density

Question 4

what are conjugated molecules?

Answer 4

have alternating single or double bonds

occurs when unhybridised p orbitals on 3+ atoms overlap
allow for delocalisation of e-

stabilised molecules due to resonance
can exist longer

Question 5

what is delocalisation?

Answer 5

each pi e- is shared by other C
electrons are free to move around the other elements

Question 6

what is conjugation?

Answer 6

have alternating single and double bonds