Gardner, Benedict M. and Balazs, Gabor and Scheer, Manfred and Tuna, Floriana and McInnes, Eric J. L. and McMaster, Jonathan and Lewis, William and Blake, Alexander J. and Liddle, Stephen T. (2015) Triamidoamine uranium(IV)-arsenic complexes containing one-, two- and threefold U-As bonding interactions. NATURE CHEMISTRY, 7 (7). pp. 582-590. ISSN 1755-4330, 1755-4349
Full text not available from this repository. (Request a copy)Abstract
To further our fundamental understanding of the nature and extent of covalency in uranium-ligand bonding, and the benefits that this may have for the design of new ligands for nuclear waste separation, there is burgeoning interest in the nature of uranium complexes with soft- and multiple-bond-donor ligands. Despite this, there have so far been no examples of structurally authenticated molecular uranium-arsenic bonds under ambient conditions. Here, we report molecular uranium(IV)-arsenic complexes featuring formal single, double and triple U-As bonding interactions. Compound formulations are supported by a range of characterization techniques, and theoretical calculations suggest the presence of polarized covalent one-, two- and threefold bonding interactions between uranium and arsenic in parent arsenide [U-AsH2], terminal arsinidene [U=AsH] and arsenido [U=AsK2] complexes, respectively. These studies inform our understanding of the bonding of actinides with soft donor ligands and may be of use in future ligand design in this area.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | RAY-ABSORPTION SPECTROSCOPY; ELECTRONIC-STRUCTURE; TRIVALENT ACTINIDE; CRYSTAL-STRUCTURES; COVALENT RADII; TRIPLE-BOND; URANYL-ION; URANIUM; CHEMISTRY; ELEMENTS; |
| Subjects: | 500 Science > 540 Chemistry & allied sciences |
| Divisions: | Chemistry and Pharmacy > Institut für Anorganische Chemie |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 08 Jul 2019 13:35 |
| Last Modified: | 08 Jul 2019 13:35 |
| URI: | https://pred.uni-regensburg.de/id/eprint/5267 |
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