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- Title
A Genuine Trivalent Bis‐Acylphosphide (BAP) Complex of Uranium.
- Authors
Hochholzer, Jakob; Waldschmidt, Pablo; Heinemann, Frank W.; Grützmacher, Hansjörg; Meyer, Karsten
- 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.
- Subjects
URANIUM; MAGNETIZATION measurement; OXIDATION states; X-ray diffraction; PHOSPHIDES; URANIUM oxides; LIGANDS (Chemistry); SUPERCONDUCTING quantum interference devices; X-ray absorption
- Publication
European Journal of Inorganic Chemistry, 2024, Vol 27, Issue 6, p1
- ISSN
1434-1948
- Publication type
Article
- DOI
10.1002/ejic.202300592