{"database":"biostudies-literature","file_versions":[],"scores":null,"additional":{"submitter":["Lim JH"],"funding":["Deutsche Forschungsgemeinschaft","Agency for Science, Technology and Research (A*STAR)","Nanyang Technological University","Ministry of Education - Singapore"],"pagination":["3992-4002"],"full_dataset_link":["https://www.ebi.ac.uk/biostudies/studies/S-EPMC5944818"],"repository":["biostudies-literature"],"omics_type":["Unknown"],"volume":["9(16)"],"pubmed_abstract":["The photochemical oxidation of a (TAML)FeIII complex 1 using visible light generated Ru(bpy)33+ produces valence tautomers (TAML)FeIV (1+ ) and (TAML˙+)FeIII (1-TAML˙+ ), depending on the exogenous anions. The presence of labile Cl- or Br- results in a ligand-based oxidation and stabilisation of a radical-cationic (TAML˙+)FeIII complex, which subsequently leads to unprecedented C-H activation followed by nucleophilic substitution on the TAML aryl ring. In contrast, exogenous cyanide culminates in metal-based oxidation, yielding the first example of a crystallographically characterised S = 1 [(TAML)FeIV(CN)2]III complex 1 using visible light generated Ru(bpy)33+ produces valence tautomers (TAML)FeIV (1+ ) and (TAML˙+)FeIII (1-TAML˙+ ), depending on the exogenous anions. The presence of labile Cl- or Br- results in a ligand-based oxidation and stabilisation of a radical-cationic (TAML˙+)FeIII complex, which subsequently leads to unprecedented C-H activation followed by nucleophilic substitution on the TAML aryl ring. In contrast, exogenous cyanide culminates in metal-based oxidation, yielding the first example of a crystallographically characterised S = 1 [(TAML)FeIV(CN)2]