Azulenophanes V synthesis and physical properties of [2](5,7)azuleno[2]para- and metacyclophanes

The title compounds $\text{3}$ and $\text{4}$ were synthesized by the usual dithia3.3]phane coupling and photodesulfurization route. Investigation of their physical properties established their molecular dimension and conformation. Transannular interaction disclosed by their electronic spectra was explained by MO calculations.