Identifying the Neglected 1:3 Complex Species of Plutonium(VI) with Oxalate in Aqueous Solution

Inorganic Chemistry 2026

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Authors: Qi Yang, Qian Liu, Jin Zhou, Tiansheng He, Yating Yang, Deli Zeng, D. H. Li, Suliang Yang, Guoxin Tian
DOI: 10.1021/acs.inorgchem.5c05571
Cited by: 1
References: 14

Abstract

The complexation of Pu(VI) with oxalate (L 2– ) in aqueous solution is scrutinized with an absorption spectral titration. The previously neglected 1:3 complex of PuO 2 L 3 4– is identified, and the stability constants of the three successive complexes (PuO 2 L(aq), PuO 2 L 2 2–, and PuO 2 L 3 4– ) are calibrated to be 5.23 ± 0.04, 9.21 ± 0.08, and 10.61 ± 0.12, respectively.

Fields of Study & Subjects

Radioactive element chemistry and processing Radioactive contamination and transfer Lanthanide and Transition Metal Complexes

Publication details

Journal / source
Inorganic Chemistry
Publisher
American Chemical Society (ACS)
Volume
65
Issue
13
Pages
7082–7085
Publication date
25 February 2026
Language
EN