2.2.2-Cryptand complexes of neptunium(iii) and plutonium(iii)

Conrad A.P. Goodwin, Sierra R. Ciccone, Samuel Bekoe, Sourav Majumdar, Brian L. Scott, Joseph W. Ziller, Andrew J. Gaunt*, Filipp Furche, William J. Evans

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

New coordination environments are reported for Np(iii) and Pu(iii) based on pilot studies of U(iii) in 2.2.2-cryptand (crypt). The U(iii)-in-crypt complex, [U(crypt)I2][I], obtained from the reaction between UI3 and crypt, is treated with Me3SiOTf (OTf = O3SCF3) in benzene to form the [U(crypt)(OTf)2][OTf] complex. Similarly, the isomorphous Np(iii) and Pu(iii) complexes were obtained similarly starting from [AnI3(THF)4]. All three complexes (1-An; An = U, Np, Pu) contain an encapsulated actinide in a THF-soluble complex. Absorption spectroscopy and DFT calculations are consistent with 5f3 U(iii), 5f4 Np(iii), and 5f5 Pu(iii) electron configurations. This journal is

Original languageEnglish
Pages (from-to)997-1000
Number of pages4
JournalChemical Communications
Volume58
Issue number7
DOIs
Publication statusPublished - 20 Jan 2022

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