Table 5. Relative Energies of (E,E), (E,Z), and (Z,Z) Isomers of the Dienones 1a–f in the S1 State.

dienone	(E,E)	(E,Z)	(Z,Z)
1a	0.00	–6.00	–1.44
1b	0.00	–4.86	–0.96
1c	0.00	–2.22	0.92
1d	0.00	–6.98	–1.66
1e	0.00	5.39	6.15
1f	0.00	5.45	6.15