title: Dipyrrinphenol-Mn(III) complex: synthesis, electrochemistry, spectroscopic characterisation and reactivity.
abstract: Herein, we report the manganese complex with a novel trianionic ligand, the pentafluorophenyldipyrrinphenol ligand DPPH(3). The X-ray crystal structure reveals that the Mn(III) complex exists in a dimeric form in the solid state. Electrochemical studies indicate two quasi-reversible one electron oxidation processes. EPR data on the one electron oxidised species in solution support the formation of a monuclear Mn complex with an S = 3/2 spin system. Preliminary studies towards epoxidation reactions were tested in the presence of iodosylbenzene (PhIO) and are in favour of an oxygen-atom-transfer (OAT) reaction catalyzed by the Mn(III) complex.
authors.affiliation: Institut de Chimie Moléculaire et des Matériaux d'Orsay, UMR-CNRS 8182, Université de Paris-Sud XI, F-91405, Orsay, France.
authors.forename: Sanae
authors.initials: S
authors.lastname: El Ghachtouli
authors.forename: Karolina
authors.initials: K
authors.lastname: Wójcik
authors.forename: Laurent
authors.initials: L
authors.lastname: Copey
authors.forename: Florence
authors.initials: F
authors.lastname: Szydlo
authors.forename: Eric
authors.initials: E
authors.lastname: Framery
authors.forename: Catherine
authors.initials: C
authors.lastname: Goux-Henry
authors.forename: Laurianne
authors.initials: L
authors.lastname: Billon
authors.forename: Marie-France
authors.initials: MF
authors.lastname: Charlot
authors.forename: Régis
authors.initials: R
authors.lastname: Guillot
authors.forename: Bruno
authors.initials: B
authors.lastname: Andrioletti
authors.forename: Ally
authors.initials: A
authors.lastname: Aukauloo
mesh_terms: D002384:Catalysis; D018360:Crystallography, X-Ray; D055664:Electrochemical Techniques; D004578:Electron Spin Resonance Spectroscopy; D008345:Manganese / Q000737:chemistry*; D008958:Models, Molecular; D009942:Organometallic Compounds / Q000737:chemistry*; D010636:Phenols / Q000737:chemistry*; D011758:Pyrroles / Q000737:chemistry*; D013056:Spectrophotometry, Ultraviolet; D005464:Fluorobenzenes; D005466:Fluorocarbons
chemical_list: D008345:Manganese; D009942:Organometallic Compounds; D010636:Phenols; D011758:Pyrroles; C568916:pentafluorophenyldipyrrinphenol; D005464:Fluorobenzenes; D005466:Fluorocarbons