Once custom-designed polyoxoanions are in hand, catalytic reactions of interest—for example those relevant to environmental chemistry—are investigated along with the needed kinetic and mechanistic studies.  Such applications of polyoxoanions are limited only by one’s imagination and one’s ability to synthesize and characterize the requisite polyoxoanions.  Most recently a record catalytic lifetime catechol dioxygenase catalysts derived from V-substituted polyoxoanions has been described.  Among the studies currently being pursued are isolation and characterization of the true catalyst, catalysis of additional types of dioxygenase reactions, and kinetic and mechanistic studies of the most interesting dioxygenase reactions discovered.