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Tracing the Iron Nitrosyl Complex [Fe(2,2′‐bipyridine)(CN) 3 (NO)] –
Author(s) -
Foi Ana,
Di Salvo Florencia,
Doctorovich Fabio,
Roy Tapashi G.,
Stirnat Kathrin,
Biewer Christian,
Klein Axel
Publication year - 2015
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.201403145
Subject(s) - chemistry , diimine , cyclic voltammetry , electron paramagnetic resonance , bipyridine , crystallography , electrochemistry , absorption spectroscopy , infrared spectroscopy , inorganic chemistry , absorption (acoustics) , redox , photochemistry , crystal structure , organic chemistry , nuclear magnetic resonance , electrode , catalysis , physics , quantum mechanics , acoustics
The previously reported complex [Ph 4 P][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 Fe II –NO · system based on the spectroscopic results is supported by DFT calculations. Reversible oxidation leads to the corresponding {Fe(NO)} 6 (Fe II –NO + ) complex, whereas the reduction to the formal {Fe(NO)} 8 species [presumably (Fe II –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.