Identifying the Neglected 1:3 Complex Species of Plutonium(VI) with Oxalate in Aqueous Solution
The complexation of Pu(VI) with oxalate (L<sup>2-</sup>) in aqueous solution is scrutinized with an absorption spectral titration. The previously neglected 1:3 complex of PuO<sub>2</sub>L<sub>3</sub><sup>4-</sup> is identified, and the stability constants of the three successive complexes (PuO<sub>2</sub>L(aq), PuO<sub>2</sub>L<sub>2</sub><sup>2-</sup>, and PuO<sub>2</sub>L<sub>3</sub><sup>4-</sup>) are calibrated to be 5.23 ± 0.04, 9.21 ± 0.08, and 10.61 ± 0.12, respectively.
Authors
- Jin Zhou
- D. H. Li
- Suliang Yang (ORCID: https://orcid.org/0000-0002-4143-7618)
- Guoxin Tian (ORCID: https://orcid.org/0000-0002-8755-0026)
- Qian Liu (ORCID: https://orcid.org/0000-0002-1632-8559)
- Yating Yang (ORCID: https://orcid.org/0000-0002-1154-3655)
- Tiansheng He
- Qi Yang
- Deli Zeng
Institutions
- China Institute of Atomic Energy (CN)
Publication Details
- Journal
- Inorganic Chemistry
- Published
- 2026-02-25
- DOI
- https://doi.org/10.1021/acs.inorgchem.5c05571
- Primary Topic
- Radioactive element chemistry and processing
- Type
- article
- Field-Weighted Citation Impact
- 0.00