Organic Chemistry

Section 7.11 A Molecular Orbital Description of Stability 293

bonding

antibonding

Energy

6

(^45)
2 3
1

Figure 7.13
As the energy of the molecular
orbitals increases, the number of
nodes increases and the net number
of bonding interactions decreases.
p
energy of
p atomic
orbitals
ethene 1,3-butadiene 1,3,5-hexatriene benzene
Energy
Figure 7.14
A comparison of the energy levels
of the molecular orbitals of
ethene, 1,3-butadiene,
1,3,5-hexatriene, and benzene.
p
Tutorial:
Common terms
BRUI07-263_297r4 21-03-2003 11:32 AM Page 293