SEARCH Articles Figures Tables Brief Overview of Ligand Groups that Bind to Metals in Biological Systems Jafarpour. Laleh. and Nolan, Steven P Transition-Metal Systems Bearing a Nucleophilic Carbene Ancillary Ligand from Thermochemistry to Catalysis Metal Ion—Ligand Systems Metal ligand reactions micellar systems Metals, Ligands, and Catalytic Systems