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Formula Periodic Tables-Their Construction and Related Symmetries

The algorithmic construction of formula periodic tables for polycyclic conjugated hydrocarbons is detailed. The symmetries associated with this construction are identified. The formula periodic table for benzenoids (Table PAH6) exhibits a one-to-one mapping onto the formula periodic table for fluorenoids/fluoranthenoids minus the constant-isomer fluorenoid/fluoranthenoid formulas and the formula periodic table for benzotropyloids/pleiadienoids which has no constant-isomer series. This work is a contribution to the development of a unified structure theory for polycyclic conjugated hydrocarbons.