2022
DOI: 10.1021/acs.inorgchem.2c00639
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Homoleptic Uranium–Bis(acyl)phosphide Complexes

Abstract: The first uranium bis­(acyl)­phosphide (BAP) complexes were synthesized from the reaction between sodium bis­(mesitoyl)­phosphide (Na­( mes BAP)) or sodium bis­(2,4,6-triisopropylbenzoyl)­phosphide (Na­( tripp BAP)) and UI3(1,4-dioxane)1.5. Thermally stable, homoleptic BAP complexes were characterized by single-crystal X-ray diffraction and electron paramagnetic resonance (EPR) spectroscopy, when appropriate, for the elucidation of the electronic structure and bonding of these complexes. EPR spectroscopy r… Show more

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Cited by 10 publications
(34 citation statements)
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“…C 6 D 6 was purchased from Cambridge Isotope Laboratories. Na mes BAP and Na tripp BAP were synthesized from previously reported procedures. EuCl 3 and EuI 2 were purchased in ampoules from commercial sources (Strem and Sigma-Aldrich, respectively) and used as received.…”
Section: Methodsmentioning
confidence: 99%
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“…C 6 D 6 was purchased from Cambridge Isotope Laboratories. Na mes BAP and Na tripp BAP were synthesized from previously reported procedures. EuCl 3 and EuI 2 were purchased in ampoules from commercial sources (Strem and Sigma-Aldrich, respectively) and used as received.…”
Section: Methodsmentioning
confidence: 99%
“…We recently investigated the uranium coordination chemistry with two different BAP ligands: sodium bis­(mesitoyl)­phosphide ( Na­( mes BAP) ) and sodium bis­(2,4,6-triisopropylbenzoyl)­phosphide ( Na­( tripp BAP) ). Installation of the smaller mes BAP – analogue on a uranium center afforded the homoleptic complex U­( mes BAP) 4 , arising from ligand redistributions and single electron chemistry. The phosphorus atom in the backbone of the BAP ligands was found to be a good spectroscopic probe of these complexes via the utility of 31 P NMR spectroscopy. To generate the trivalent U-complex, the larger BAP ligand, Na­( tripp BAP) , was required to prevent undesired rearrangements and furnish the desired U­(BAP) 3 complex.…”
Section: Introductionmentioning
confidence: 99%
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“…A similar situation is encountered in β‐diketones, the anions of which are versatile ligands, for example acetylacetonate, acac − [6] . Analogously, several transition, main group metal, yttrium and uranium complexes incorporating the BAP − ligand have been synthesized (Scheme 1b) [4,7–9] . Generally, the coordination occurs in the chelating κ 2 ‐O,O′ mode.…”
Section: Introductionmentioning
confidence: 74%