title: The coordination of sterically hindered bases to metalloporphyrins.
mesh_terms: D001665:Binding Sites; D003035:Cobalt; D004578:Electron Spin Resonance Spectroscopy; D006454:Hemoglobins; D007093:Imidazoles; D008954:Models, Biological; D008968:Molecular Conformation; D009942:Organometallic Compounds; D010847:Picolines; D011166:Porphyrins; D011725:Pyridines; D011804:Quinolines
chemical_list: D006454:Hemoglobins; D007093:Imidazoles; D009942:Organometallic Compounds; D010847:Picolines; D011166:Porphyrins; D011725:Pyridines; D011804:Quinolines; D003035:Cobalt