Catalytic autoxidations using tris-diimine iron(II) coordination complexes

1H NMR assignment corrections and 1H, 13C, 15N NMR coordination shifts structural correlations in Fe(II), Ru(II) and Os(II) cationic complexes with 2,2′‐bipyridine and 1,10‐phenanthroline

“…The respective 1 H peaks were shifted to lower frequency by ca 0.6–1.3 ppm (LL bpy ) or ca 0.9–1.55 ppm (LL phen ), either in cases when exact Δ 1H coord coordination shifts could be determined (i.e. when the δ 1H chemical shifts for the complex and the ligand concerned the same solvent: [Fe(4,4 ′ ‐dimethoxy‐bpy) 3 ] 2+ ,48 [Fe(5,5 ′ ‐diamino‐bpy) 3 ] 2+ ,49, 50 [Ru(4,4 ′ ‐dimethyl‐bpy) 3 ] 2+ ,2 [Ru(5,5 ′ ‐dimethyl‐bpy) 3 ] 2+ ,2 [Ru(bpy‐4,4′‐dicarboxylate) 3 ] 4− ,51, 52 [Ru(bpy‐5,5 ′ ‐dicarboxylate) 3 ] 4− ,53 [Ru(bpy‐4,4 ′ ‐disulfonate) 3 ] 4− ,54 [Os(bpy‐4,4 ′ ‐dicarboxylate) 3 ] 4− 52 and [Fe(4,7‐diphenyl‐phen) 3 ] 2+ ,55 [Ru(4,7‐diphenyl‐phen) 3 ] 2+ 56) or when they were evaluated only approximately (due to the change of solvent: [Fe(4,4 ′ ‐dimethyl‐bpy) 3 ] 2+ ,57 [Ru(4,4 ′ ‐di‐ tert ‐butyl‐bpy) 3 ] 2+ ,29, 58 [Ru(4,4 ′ ‐dichloro‐bpy) 3 ] 2+ ,29 [Ru(4,7‐dichloro‐phen) 3 ] 2+ ,59 [Os(4,7‐dimethyl‐phen) 3 ] 2+ ,31 [Os(5,6‐dimethyl‐phen) 3 ] 2+ 31).…”

Synthesis, Characterization, and Biological Evaluation of Red-Absorbing Fe(II) Polypyridine Complexes

“…The complexes that were synthesized in this work are visualized in Figure 2. The synthesis of complex 4 has already been reported in the literature [65], contrary to those of complexes 5 and 6. All of the complexes were synthesized by the complexation of bphen and its derivatives with FeCl 2 ·4H 2 O.…”

“…Complexes 4 was isolated as a PF6 salt and the complexes 5 and 6 were isolated as Na salts. demonstrating that this complex is able to interact with oxygen [65]. Herein, we present the synthesis, in-depth characterization, and biological evaluation of three Fe(II) complexes.…”

“…Fe(4,7-Diphenyl-1,10-phenanthroline) 3 (PF 6 ) 2 (1): The synthesis of Fe(4,7-Diphenyl-1,10-phenanthroline) 3 (PF 6 ) 2 is already published [65]. However, in this work, another synthetic route was employed.…”

“…Inorganics 2019, 7 FOR PEER REVIEW 3 of 15 been reported in the literature as a catalyst for the autoxidation of cumene and cyclohexane, demonstrating that this complex is able to interact with oxygen [65]. Herein, we present the synthesis, in-depth characterization, and biological evaluation of three Fe(II) complexes.…”