FeIII and FeII Phosphasalen Complexes: Synthesis, Characterization, and Catalytic Application for 2‐Naphtol Oxidative Coupling - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Chemistry - A European Journal Année : 2020

FeIII and FeII Phosphasalen Complexes: Synthesis, Characterization, and Catalytic Application for 2‐Naphtol Oxidative Coupling

Résumé

Synthesis and characterization of three iron(III) phosphasalen complexes as well as the iron(II) analogue are reported. Phosphasalen (Psalen) differ from salen by the presence of iminophosphorane (P=N) functions in place of the imines in salen. All the complexes were characterized by single-crystal X-ray diffraction, UV-vis and EPR spectroscopy as well as cyclic voltammetry. The [Fe II (Psalen)] complex was shown to remain tetracoordinated even in coordinating solvent but exhibits surprisingly a magnetic moment in line with a Fe II high spin ground state. For the Fe III complexes, the higher lability of triflate anion compared to nitrate was demonstrated. As they exhibit lower reduction potential compared to their salen analogues, these complexes were tested for the coupling of 2-naphtol using O2 from air as oxidant. In order to shed light on this reaction, the interaction between 2-napthol and the Fe III (Psalen) complexes was studied by cyclic voltammetry as well as UV-vis spectrosocopy.

Domaines

Chimie
Fichier principal
Vignette du fichier
Text280320format version soumise.pdf (949.57 Ko) Télécharger le fichier
Origine Fichiers produits par l'(les) auteur(s)
Loading...

Dates et versions

hal-02938996 , version 1 (15-09-2020)

Identifiants

Citer

Emmanuel Oheix, Christian Herrero, Jules Moutet, Jean‐noël Rebilly, Marie Cordier, et al.. FeIII and FeII Phosphasalen Complexes: Synthesis, Characterization, and Catalytic Application for 2‐Naphtol Oxidative Coupling. Chemistry - A European Journal, 2020, ⟨10.1002/chem.202001662⟩. ⟨hal-02938996⟩
55 Consultations
93 Téléchargements

Altmetric

Partager

Gmail Mastodon Facebook X LinkedIn More