Abstract
The genuine trivalent uranium complex, K[UIII(mesBAP)4], employing four bidentate bis(2,4,6-trimethylbenzoyl)phosphide (mesBAP) chelating ligands, is reported and obtained by the reduction of the literature-known tetravalent analog [UIV(mesBAP)4]. Hence, the bis(acyl)phosphide mesBAP ligand allowed to establish a fully reversible redox couple with uranium in the oxidation states +III and +IV. In both complexes [U(mesBAP)4]0/-, the uranium ions are coordinated to four mesBAP ligands in a square antiprismatic geometry. All new compounds have been characterized by single-crystal XRD analysis, 1H and 31P NMR, and UV/Vis/NIR electronic absorption spectroscopy, as well as SQUID magnetization and electrochemical measurements, and CW X-band EPR in the case of the trivalent complex. Show more
Permanent link
https://doi.org/10.3929/ethz-b-000656433Publication status
publishedExternal links
Journal / series
European Journal of Inorganic ChemistryVolume
Pages / Article No.
Publisher
Wiley-VCHSubject
Uranium Complexes; Bisacylphosphide BAP; Ligands; Spectroscopy; MagnetismMore
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