(a) Confirm that the symmetry-adapted linear combinations of p-orbitals for benzene are those set out above Example 8.4.
(b) Find the corresponding combinations for naphthalene.
Within the Hu¨ ckel p-electron scheme, estimate the delocalization energy of
(a) the benzene cation C6Hþ 6 and
(b) the benzene dianion 