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- Title
Tracing the Iron Nitrosyl Complex [Fe(2,2′-bipyridine)(CN)<sub>3</sub>(NO)]<sup>-</sup>.
- Authors
Foi, Ana; Di Salvo, Florencia; Doctorovich, Fabio; Roy, Tapashi G.; Stirnat, Kathrin; Biewer, Christian; Klein, Axel
- Abstract
The previously reported complex [Ph4P][Fe(bpy)(CN)3(NO)] (bpy = 2,2′-bipyridine) was synthesised and characterised in detail using UV/Vis absorption and IR spectroscopy, cyclic voltammetry, and single-crystal XRD. Detailed spectroelectrochemical (UV/Vis, IR and EPR) insight adds perfectly to the previous electrochemical characterisation of this complex. The description of this {Fe(NO)}7 complex as a low-spin FeII-NO · system based on the spectroscopic results is supported by DFT calculations. Reversible oxidation leads to the corresponding {Fe(NO)}6 (FeII-NO+) complex, whereas the reduction to the formal {Fe(NO)}8 species [presumably (FeII-NO-)] occurs irreversibly. When trying to synthesise further derivatives that contain other α-diimine ligands, only for the 1,10-phenanthroline (phen) derivative were some results obtained. For other ligands the obtained materials were too reactive. The reasons for such behaviour are also discussed.
- Subjects
IRON compound synthesis; NITROGEN oxides; IMINES; ELECTROCHEMICAL research; INFRARED spectroscopy
- Publication
European Journal of Inorganic Chemistry, 2015, Vol 2015, Issue 6, p1033
- ISSN
1434-1948
- Publication type
Article
- DOI
10.1002/ejic.201403145