Tetra-Amido Macrocyclic Ligands with a reactive iron core (Fe-TAMLs) have proven to be effective catalysts so far "in degrading estrogenic compounds, cleaning waste water from textile manufacturing, reducing fuel pollutants, treating pulp and paper processing byproducts, and decontaminating a benign simulant of anthrax."

They are environmentally-friendly examples in green chemistry.(Good news)