Synthesis and Reactivity of Iron(II) Complexes with a New Tripodal Imine Ligand. Issue 10 (9th January 2020) - Will, Janine
Abstract: A new tripodal imine ligand tris(2‐(propan‐2‐ylideneamino)ethyl)amine (imine3 tren) was prepared in order to stabilize high valent iron‐oxido complexes. Iron complexes were synthesized in template reactions from iron(II) salts, tris(2‐aminoethyl)amine (tren) and acetone. Due to the reversibility of the imine formation, complexes with different ligands were obtained depending on the reaction conditions. Three complexes, [Fe(imine3 tren)(OAc)2 ] (1 ), [Fe(imine3 tren)(OAc)]OTf (2 ) and [(imine3 tren)2 Fe2 (F)2 ](SbF6 )2 (3 ), could be synthesized and structurally characterized. However, reactions with hydrogen peroxide, iodosobenzene or ozone did not lead to any kind of "oxygen adduct" complex that could be spectroscopically observed. Abstract : Iron complexes [Fe(imine3 tren)(OAc)2 ], [Fe(imine3 tren)(OAc)]OTf (shown) and [(imine3 tren)2 Fe2 (F)2 ](SbF6 )2, with a new tripodal imine ligand could be synthesized and structurally characterized.