title: Tuning the thermodynamic onset potential of electrocatalytic O2 reduction reaction by synthetic iron-porphyrin complexes.
abstract: A porphyrin ligand with two β-pyrrolic electron withdrawing ester groups is synthesized and its Co complex is crystallographically characterized. The iron complex of this porphyrin ligand shows an ∼200 mV positive shift in its Fe(III/II) potential in organic as well as aqueous solvents and in the onset potential of ORR relative to that of an unsubstituted porphyrin.
authors.affiliation: Department of Chemistry, Indian Association for the Cultivation of Science, India. icad@iacs.res.in.
authors.forename: Sk
authors.initials: S
authors.lastname: Amanullah
authors.forename: Pradip Kumar
authors.initials: PK
authors.lastname: Das
authors.forename: Subhra
authors.initials: S
authors.lastname: Samanta
authors.forename: Abhishek
authors.initials: A
authors.lastname: Dey
mesh_terms: D002384:Catalysis; D004563:Electrochemistry; D007501:Iron / Q000737:chemistry*; D008024:Ligands; D008665:Metalloporphyrins / Q000138:chemical synthesis / Q000737:chemistry*; D008958:Models, Molecular; D008968:Molecular Conformation; D010084:Oxidation-Reduction; D010100:Oxygen / Q000737:chemistry*; D012997:Solvents / Q000737:chemistry; D013816:Thermodynamics
chemical_list: D008024:Ligands; D008665:Metalloporphyrins; D012997:Solvents; D007501:Iron; D010100:Oxygen