Heteroleptic Pyridyl-Carbene Iron Complexes with Tuneable Electronic Properties

Abstract : New heteroleptic iron complexes mixing a terpyridine bearing a protonable pyridyl substituent (pytpy) and a pyridyl carbene ligand (carb) have been prepared and characterised by UV/Vis spectroscopy, cyclic voltammetry and TD-DFT computations. The absorption spectrum of [Fe(carb)(pytpy)](2+) showed a notable redshift compared with the homoleptic [Fe(carb)(2)](2+) complex. The MLCT transition occurred at even lower energy when the pendant pyridine was protonated, leading to a wide absorption domain in the 450-650 nm range. Calculations revealed the strong propensity of excited electrons to move from the metal to the pytpy ligand in the complex. This new family of complexes is a promising addition to the arsenal of iron-based chromophores with tuneable electronic properties.
Type de document :
Article dans une revue
European Journal of Inorganic Chemistry, Wiley-VCH Verlag, 2014, pp.3747-3753. 〈10.1002/ejic.201402356〉
Domaine :
Liste complète des métadonnées

https://hal.univ-lorraine.fr/hal-01494414
Contributeur : Srsmc Ul <>
Soumis le : jeudi 23 mars 2017 - 14:04:17
Dernière modification le : vendredi 15 juin 2018 - 16:02:03

Lien texte intégral

Identifiants

Collections

Citation

Thibaut Duchanois, Thibaud Etienne, Marc Beley, Xavier Assfeld, Eric A. Perpete, et al.. Heteroleptic Pyridyl-Carbene Iron Complexes with Tuneable Electronic Properties. European Journal of Inorganic Chemistry, Wiley-VCH Verlag, 2014, pp.3747-3753. 〈10.1002/ejic.201402356〉. 〈hal-01494414〉

Partager

Métriques

Consultations de la notice

43